/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 11:03:38,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 11:03:38,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 11:03:38,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 11:03:38,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 11:03:38,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 11:03:38,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 11:03:38,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 11:03:38,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 11:03:38,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 11:03:38,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 11:03:38,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 11:03:38,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 11:03:38,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 11:03:38,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 11:03:38,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 11:03:38,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 11:03:38,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 11:03:38,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 11:03:38,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 11:03:38,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 11:03:38,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 11:03:38,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 11:03:38,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 11:03:38,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 11:03:38,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 11:03:38,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 11:03:38,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 11:03:38,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 11:03:38,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 11:03:38,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 11:03:38,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 11:03:38,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 11:03:38,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 11:03:38,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 11:03:38,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 11:03:38,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 11:03:38,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 11:03:38,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 11:03:38,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 11:03:38,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 11:03:38,418 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 11:03:38,449 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 11:03:38,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 11:03:38,450 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 11:03:38,450 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 11:03:38,451 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 11:03:38,451 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 11:03:38,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 11:03:38,452 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 11:03:38,452 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 11:03:38,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 11:03:38,453 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 11:03:38,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 11:03:38,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 11:03:38,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 11:03:38,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 11:03:38,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 11:03:38,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 11:03:38,454 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 11:03:38,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 11:03:38,454 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 11:03:38,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 11:03:38,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 11:03:38,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 11:03:38,454 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 11:03:38,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 11:03:38,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 11:03:38,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 11:03:38,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 11:03:38,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 11:03:38,456 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 11:03:38,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 11:03:38,456 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 11:03:38,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 11:03:38,457 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 11:03:38,457 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 11:03:38,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 11:03:38,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 11:03:38,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 11:03:38,654 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 11:03:38,654 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 11:03:38,656 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2022-01-18 11:03:38,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90b19ddf2/9e45bb7c17384b1791a413d575bbcada/FLAGe26e38fbf [2022-01-18 11:03:39,014 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 11:03:39,014 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2022-01-18 11:03:39,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90b19ddf2/9e45bb7c17384b1791a413d575bbcada/FLAGe26e38fbf [2022-01-18 11:03:39,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90b19ddf2/9e45bb7c17384b1791a413d575bbcada [2022-01-18 11:03:39,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 11:03:39,448 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 11:03:39,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 11:03:39,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 11:03:39,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 11:03:39,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:03:39" (1/1) ... [2022-01-18 11:03:39,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32829271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:39, skipping insertion in model container [2022-01-18 11:03:39,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:03:39" (1/1) ... [2022-01-18 11:03:39,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 11:03:39,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 11:03:39,682 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c[2495,2508] [2022-01-18 11:03:39,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 11:03:39,702 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 11:03:39,742 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c[2495,2508] [2022-01-18 11:03:39,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 11:03:39,756 INFO L208 MainTranslator]: Completed translation [2022-01-18 11:03:39,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:39 WrapperNode [2022-01-18 11:03:39,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 11:03:39,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 11:03:39,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 11:03:39,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 11:03:39,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:39" (1/1) ... [2022-01-18 11:03:39,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:39" (1/1) ... [2022-01-18 11:03:39,808 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 158 [2022-01-18 11:03:39,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 11:03:39,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 11:03:39,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 11:03:39,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 11:03:39,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:39" (1/1) ... [2022-01-18 11:03:39,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:39" (1/1) ... [2022-01-18 11:03:39,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:39" (1/1) ... [2022-01-18 11:03:39,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:39" (1/1) ... [2022-01-18 11:03:39,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:39" (1/1) ... [2022-01-18 11:03:39,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:39" (1/1) ... [2022-01-18 11:03:39,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:39" (1/1) ... [2022-01-18 11:03:39,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 11:03:39,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 11:03:39,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 11:03:39,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 11:03:39,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:39" (1/1) ... [2022-01-18 11:03:39,856 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 11:03:39,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 11:03:39,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 11:03:39,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 11:03:39,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 11:03:39,921 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 11:03:39,921 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 11:03:39,921 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 11:03:39,921 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 11:03:39,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 11:03:39,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 11:03:39,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 11:03:39,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 11:03:39,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 11:03:39,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 11:03:39,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 11:03:39,923 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 11:03:39,999 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 11:03:40,000 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 11:03:40,266 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 11:03:40,274 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 11:03:40,274 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 11:03:40,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:03:40 BoogieIcfgContainer [2022-01-18 11:03:40,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 11:03:40,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 11:03:40,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 11:03:40,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 11:03:40,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 11:03:39" (1/3) ... [2022-01-18 11:03:40,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58434b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:03:40, skipping insertion in model container [2022-01-18 11:03:40,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:03:39" (2/3) ... [2022-01-18 11:03:40,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58434b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:03:40, skipping insertion in model container [2022-01-18 11:03:40,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:03:40" (3/3) ... [2022-01-18 11:03:40,283 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2022-01-18 11:03:40,287 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 11:03:40,287 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 11:03:40,287 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 11:03:40,287 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 11:03:40,325 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,328 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,328 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,328 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,329 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,329 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,329 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,329 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,329 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,329 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,329 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,330 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,330 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,330 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,330 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,330 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,330 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,331 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,332 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,333 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,334 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,335 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,339 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,340 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,340 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,340 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,347 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,348 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,349 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,351 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,352 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,352 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,352 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,352 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,352 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,352 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,352 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,353 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,353 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,353 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,353 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,354 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,355 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,355 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,355 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,355 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,355 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,355 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,355 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,355 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,355 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,356 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,356 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,356 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,356 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,356 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,356 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,356 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,358 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,358 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,358 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,358 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,358 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,358 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,358 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,359 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,360 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,361 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,362 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,363 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,364 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,365 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,366 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,367 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,367 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,367 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,367 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,367 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,367 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,368 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,371 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,373 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,373 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,374 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,375 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,375 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,375 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,375 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,375 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,375 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,375 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,375 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,376 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,376 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,376 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,376 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,376 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,376 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,376 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 11:03:40,379 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 11:03:40,423 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 11:03:40,431 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 11:03:40,431 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 11:03:40,452 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 198 places, 210 transitions, 436 flow [2022-01-18 11:03:40,819 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11777 states, 11776 states have (on average 2.9679857336956523) internal successors, (34951), 11776 states have internal predecessors, (34951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:40,867 INFO L276 IsEmpty]: Start isEmpty. Operand has 11777 states, 11776 states have (on average 2.9679857336956523) internal successors, (34951), 11776 states have internal predecessors, (34951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:40,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:40,948 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:40,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:40,950 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:40,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:40,955 INFO L85 PathProgramCache]: Analyzing trace with hash 997613538, now seen corresponding path program 1 times [2022-01-18 11:03:40,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:40,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596058707] [2022-01-18 11:03:40,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:40,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:41,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:41,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:41,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596058707] [2022-01-18 11:03:41,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596058707] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:41,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:41,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:41,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433734254] [2022-01-18 11:03:41,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:41,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:41,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:41,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:41,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:41,534 INFO L87 Difference]: Start difference. First operand has 11777 states, 11776 states have (on average 2.9679857336956523) internal successors, (34951), 11776 states have internal predecessors, (34951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:42,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:42,097 INFO L93 Difference]: Finished difference Result 17273 states and 48971 transitions. [2022-01-18 11:03:42,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 11:03:42,099 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:42,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:42,207 INFO L225 Difference]: With dead ends: 17273 [2022-01-18 11:03:42,207 INFO L226 Difference]: Without dead ends: 15483 [2022-01-18 11:03:42,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:03:42,212 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 565 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 2935 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:42,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 2935 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:03:42,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15483 states. [2022-01-18 11:03:42,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15483 to 11190. [2022-01-18 11:03:42,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11190 states, 11189 states have (on average 2.897220484404326) internal successors, (32417), 11189 states have internal predecessors, (32417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:42,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11190 states to 11190 states and 32417 transitions. [2022-01-18 11:03:42,834 INFO L78 Accepts]: Start accepts. Automaton has 11190 states and 32417 transitions. Word has length 101 [2022-01-18 11:03:42,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:42,836 INFO L470 AbstractCegarLoop]: Abstraction has 11190 states and 32417 transitions. [2022-01-18 11:03:42,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:42,837 INFO L276 IsEmpty]: Start isEmpty. Operand 11190 states and 32417 transitions. [2022-01-18 11:03:42,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:42,871 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:42,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:42,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 11:03:42,873 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:42,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:42,874 INFO L85 PathProgramCache]: Analyzing trace with hash 672990146, now seen corresponding path program 1 times [2022-01-18 11:03:42,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:42,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066250712] [2022-01-18 11:03:42,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:42,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:42,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:42,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:42,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066250712] [2022-01-18 11:03:42,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066250712] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:42,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:42,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 11:03:42,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768034696] [2022-01-18 11:03:42,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:42,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 11:03:42,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:42,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 11:03:42,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:03:42,977 INFO L87 Difference]: Start difference. First operand 11190 states and 32417 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:43,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:43,163 INFO L93 Difference]: Finished difference Result 15448 states and 43794 transitions. [2022-01-18 11:03:43,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 11:03:43,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:43,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:43,219 INFO L225 Difference]: With dead ends: 15448 [2022-01-18 11:03:43,219 INFO L226 Difference]: Without dead ends: 15393 [2022-01-18 11:03:43,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:03:43,221 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 122 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:43,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 432 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:03:43,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15393 states. [2022-01-18 11:03:43,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15393 to 11390. [2022-01-18 11:03:43,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11390 states, 11389 states have (on average 2.8798840986917202) internal successors, (32799), 11389 states have internal predecessors, (32799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:43,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11390 states to 11390 states and 32799 transitions. [2022-01-18 11:03:43,673 INFO L78 Accepts]: Start accepts. Automaton has 11390 states and 32799 transitions. Word has length 101 [2022-01-18 11:03:43,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:43,674 INFO L470 AbstractCegarLoop]: Abstraction has 11390 states and 32799 transitions. [2022-01-18 11:03:43,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:43,674 INFO L276 IsEmpty]: Start isEmpty. Operand 11390 states and 32799 transitions. [2022-01-18 11:03:43,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:43,711 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:43,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:43,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 11:03:43,712 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:43,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:43,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1130247864, now seen corresponding path program 1 times [2022-01-18 11:03:43,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:43,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699916462] [2022-01-18 11:03:43,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:43,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:43,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:43,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:43,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699916462] [2022-01-18 11:03:43,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699916462] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:43,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:43,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 11:03:43,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961844766] [2022-01-18 11:03:43,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:43,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 11:03:43,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:43,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 11:03:43,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:03:43,758 INFO L87 Difference]: Start difference. First operand 11390 states and 32799 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:43,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:43,851 INFO L93 Difference]: Finished difference Result 15691 states and 44284 transitions. [2022-01-18 11:03:43,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 11:03:43,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:43,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:43,897 INFO L225 Difference]: With dead ends: 15691 [2022-01-18 11:03:43,898 INFO L226 Difference]: Without dead ends: 15450 [2022-01-18 11:03:43,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:03:43,901 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 126 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:43,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 432 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:03:43,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15450 states. [2022-01-18 11:03:44,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15450 to 11400. [2022-01-18 11:03:44,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11400 states, 11399 states have (on average 2.879287656812001) internal successors, (32821), 11399 states have internal predecessors, (32821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:44,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11400 states to 11400 states and 32821 transitions. [2022-01-18 11:03:44,251 INFO L78 Accepts]: Start accepts. Automaton has 11400 states and 32821 transitions. Word has length 101 [2022-01-18 11:03:44,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:44,251 INFO L470 AbstractCegarLoop]: Abstraction has 11400 states and 32821 transitions. [2022-01-18 11:03:44,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:44,252 INFO L276 IsEmpty]: Start isEmpty. Operand 11400 states and 32821 transitions. [2022-01-18 11:03:44,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:44,346 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:44,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:44,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 11:03:44,346 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:44,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:44,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1378875394, now seen corresponding path program 1 times [2022-01-18 11:03:44,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:44,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011621768] [2022-01-18 11:03:44,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:44,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:44,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:44,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:44,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011621768] [2022-01-18 11:03:44,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011621768] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:44,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:44,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 11:03:44,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449573750] [2022-01-18 11:03:44,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:44,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 11:03:44,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:44,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 11:03:44,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:03:44,420 INFO L87 Difference]: Start difference. First operand 11400 states and 32821 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:44,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:44,485 INFO L93 Difference]: Finished difference Result 11167 states and 31220 transitions. [2022-01-18 11:03:44,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 11:03:44,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:44,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:44,515 INFO L225 Difference]: With dead ends: 11167 [2022-01-18 11:03:44,515 INFO L226 Difference]: Without dead ends: 11167 [2022-01-18 11:03:44,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:03:44,523 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 135 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:44,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 284 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:03:44,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11167 states. [2022-01-18 11:03:44,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11167 to 10541. [2022-01-18 11:03:44,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10541 states, 10540 states have (on average 2.8139468690702087) internal successors, (29659), 10540 states have internal predecessors, (29659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:44,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10541 states to 10541 states and 29659 transitions. [2022-01-18 11:03:44,802 INFO L78 Accepts]: Start accepts. Automaton has 10541 states and 29659 transitions. Word has length 101 [2022-01-18 11:03:44,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:44,804 INFO L470 AbstractCegarLoop]: Abstraction has 10541 states and 29659 transitions. [2022-01-18 11:03:44,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:44,804 INFO L276 IsEmpty]: Start isEmpty. Operand 10541 states and 29659 transitions. [2022-01-18 11:03:44,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:44,833 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:44,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:44,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 11:03:44,834 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:44,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:44,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1511509720, now seen corresponding path program 1 times [2022-01-18 11:03:44,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:44,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571841102] [2022-01-18 11:03:44,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:44,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:45,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:45,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:45,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571841102] [2022-01-18 11:03:45,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571841102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:45,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:45,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:45,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969790584] [2022-01-18 11:03:45,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:45,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:45,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:45,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:45,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:45,019 INFO L87 Difference]: Start difference. First operand 10541 states and 29659 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:45,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:45,414 INFO L93 Difference]: Finished difference Result 13249 states and 36739 transitions. [2022-01-18 11:03:45,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:03:45,419 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:45,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:45,456 INFO L225 Difference]: With dead ends: 13249 [2022-01-18 11:03:45,456 INFO L226 Difference]: Without dead ends: 12532 [2022-01-18 11:03:45,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:03:45,458 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 406 mSDsluCounter, 2759 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 3086 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:45,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [406 Valid, 3086 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:45,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12532 states. [2022-01-18 11:03:45,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12532 to 10399. [2022-01-18 11:03:45,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10399 states, 10398 states have (on average 2.8191959992306215) internal successors, (29314), 10398 states have internal predecessors, (29314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:45,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10399 states to 10399 states and 29314 transitions. [2022-01-18 11:03:45,749 INFO L78 Accepts]: Start accepts. Automaton has 10399 states and 29314 transitions. Word has length 101 [2022-01-18 11:03:45,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:45,749 INFO L470 AbstractCegarLoop]: Abstraction has 10399 states and 29314 transitions. [2022-01-18 11:03:45,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:45,749 INFO L276 IsEmpty]: Start isEmpty. Operand 10399 states and 29314 transitions. [2022-01-18 11:03:45,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:45,770 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:45,770 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:45,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 11:03:45,770 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:45,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:45,771 INFO L85 PathProgramCache]: Analyzing trace with hash 770227354, now seen corresponding path program 2 times [2022-01-18 11:03:45,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:45,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688409648] [2022-01-18 11:03:45,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:45,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:45,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:45,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:45,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688409648] [2022-01-18 11:03:45,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688409648] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:45,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:45,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:45,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463117081] [2022-01-18 11:03:45,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:45,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:45,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:45,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:45,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:45,978 INFO L87 Difference]: Start difference. First operand 10399 states and 29314 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:46,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:46,301 INFO L93 Difference]: Finished difference Result 11691 states and 32723 transitions. [2022-01-18 11:03:46,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:03:46,301 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:46,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:46,329 INFO L225 Difference]: With dead ends: 11691 [2022-01-18 11:03:46,329 INFO L226 Difference]: Without dead ends: 11163 [2022-01-18 11:03:46,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:03:46,331 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 207 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:46,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 1903 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:46,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11163 states. [2022-01-18 11:03:46,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11163 to 10403. [2022-01-18 11:03:46,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10403 states, 10402 states have (on average 2.818784849067487) internal successors, (29321), 10402 states have internal predecessors, (29321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:46,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10403 states to 10403 states and 29321 transitions. [2022-01-18 11:03:46,577 INFO L78 Accepts]: Start accepts. Automaton has 10403 states and 29321 transitions. Word has length 101 [2022-01-18 11:03:46,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:46,578 INFO L470 AbstractCegarLoop]: Abstraction has 10403 states and 29321 transitions. [2022-01-18 11:03:46,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:46,578 INFO L276 IsEmpty]: Start isEmpty. Operand 10403 states and 29321 transitions. [2022-01-18 11:03:46,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:46,596 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:46,597 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:46,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 11:03:46,597 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:46,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:46,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1737804988, now seen corresponding path program 3 times [2022-01-18 11:03:46,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:46,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205918389] [2022-01-18 11:03:46,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:46,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:46,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:46,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:46,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205918389] [2022-01-18 11:03:46,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205918389] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:46,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:46,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:46,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496344563] [2022-01-18 11:03:46,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:46,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:46,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:46,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:46,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:46,797 INFO L87 Difference]: Start difference. First operand 10403 states and 29321 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:47,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:47,080 INFO L93 Difference]: Finished difference Result 11527 states and 32293 transitions. [2022-01-18 11:03:47,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:03:47,081 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:47,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:47,110 INFO L225 Difference]: With dead ends: 11527 [2022-01-18 11:03:47,111 INFO L226 Difference]: Without dead ends: 11042 [2022-01-18 11:03:47,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:03:47,112 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 162 mSDsluCounter, 2159 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 2451 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:47,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 2451 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:47,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-01-18 11:03:47,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 10407. [2022-01-18 11:03:47,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10407 states, 10406 states have (on average 2.818374014991351) internal successors, (29328), 10406 states have internal predecessors, (29328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:47,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10407 states to 10407 states and 29328 transitions. [2022-01-18 11:03:47,345 INFO L78 Accepts]: Start accepts. Automaton has 10407 states and 29328 transitions. Word has length 101 [2022-01-18 11:03:47,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:47,346 INFO L470 AbstractCegarLoop]: Abstraction has 10407 states and 29328 transitions. [2022-01-18 11:03:47,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:47,346 INFO L276 IsEmpty]: Start isEmpty. Operand 10407 states and 29328 transitions. [2022-01-18 11:03:47,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:47,363 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:47,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:47,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 11:03:47,364 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:47,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:47,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1056184334, now seen corresponding path program 4 times [2022-01-18 11:03:47,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:47,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345124125] [2022-01-18 11:03:47,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:47,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:47,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:47,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:47,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345124125] [2022-01-18 11:03:47,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345124125] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:47,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:47,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:47,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740859351] [2022-01-18 11:03:47,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:47,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:47,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:47,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:47,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:47,487 INFO L87 Difference]: Start difference. First operand 10407 states and 29328 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:47,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:47,745 INFO L93 Difference]: Finished difference Result 11461 states and 32116 transitions. [2022-01-18 11:03:47,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:03:47,746 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:47,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:47,770 INFO L225 Difference]: With dead ends: 11461 [2022-01-18 11:03:47,770 INFO L226 Difference]: Without dead ends: 10953 [2022-01-18 11:03:47,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:03:47,771 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 155 mSDsluCounter, 1850 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:47,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 2138 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:47,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10953 states. [2022-01-18 11:03:48,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10953 to 10381. [2022-01-18 11:03:48,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10381 states, 10380 states have (on average 2.8197495183044317) internal successors, (29269), 10380 states have internal predecessors, (29269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:48,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10381 states to 10381 states and 29269 transitions. [2022-01-18 11:03:48,069 INFO L78 Accepts]: Start accepts. Automaton has 10381 states and 29269 transitions. Word has length 101 [2022-01-18 11:03:48,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:48,069 INFO L470 AbstractCegarLoop]: Abstraction has 10381 states and 29269 transitions. [2022-01-18 11:03:48,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:48,070 INFO L276 IsEmpty]: Start isEmpty. Operand 10381 states and 29269 transitions. [2022-01-18 11:03:48,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:48,087 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:48,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:48,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 11:03:48,088 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:48,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:48,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1996165324, now seen corresponding path program 5 times [2022-01-18 11:03:48,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:48,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520439001] [2022-01-18 11:03:48,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:48,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:48,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:48,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:48,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520439001] [2022-01-18 11:03:48,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520439001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:48,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:48,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:48,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529652543] [2022-01-18 11:03:48,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:48,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:48,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:48,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:48,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:48,211 INFO L87 Difference]: Start difference. First operand 10381 states and 29269 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:48,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:48,473 INFO L93 Difference]: Finished difference Result 11569 states and 32417 transitions. [2022-01-18 11:03:48,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:03:48,473 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:48,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:48,496 INFO L225 Difference]: With dead ends: 11569 [2022-01-18 11:03:48,496 INFO L226 Difference]: Without dead ends: 11084 [2022-01-18 11:03:48,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:03:48,499 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 114 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:48,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 2355 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:48,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11084 states. [2022-01-18 11:03:48,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11084 to 10393. [2022-01-18 11:03:48,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10393 states, 10392 states have (on average 2.819284064665127) internal successors, (29298), 10392 states have internal predecessors, (29298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:48,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10393 states to 10393 states and 29298 transitions. [2022-01-18 11:03:48,740 INFO L78 Accepts]: Start accepts. Automaton has 10393 states and 29298 transitions. Word has length 101 [2022-01-18 11:03:48,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:48,740 INFO L470 AbstractCegarLoop]: Abstraction has 10393 states and 29298 transitions. [2022-01-18 11:03:48,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:48,740 INFO L276 IsEmpty]: Start isEmpty. Operand 10393 states and 29298 transitions. [2022-01-18 11:03:48,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:48,757 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:48,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:48,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 11:03:48,758 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:48,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:48,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1314544670, now seen corresponding path program 6 times [2022-01-18 11:03:48,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:48,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292403438] [2022-01-18 11:03:48,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:48,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:48,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:48,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:48,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292403438] [2022-01-18 11:03:48,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292403438] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:48,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:48,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:48,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91780863] [2022-01-18 11:03:48,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:48,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:48,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:48,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:48,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:48,922 INFO L87 Difference]: Start difference. First operand 10393 states and 29298 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:49,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:49,154 INFO L93 Difference]: Finished difference Result 11527 states and 32306 transitions. [2022-01-18 11:03:49,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:03:49,155 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:49,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:49,178 INFO L225 Difference]: With dead ends: 11527 [2022-01-18 11:03:49,178 INFO L226 Difference]: Without dead ends: 11041 [2022-01-18 11:03:49,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:03:49,179 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 110 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:49,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 1481 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:49,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11041 states. [2022-01-18 11:03:49,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11041 to 10389. [2022-01-18 11:03:49,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10389 states, 10388 states have (on average 2.8193107431651905) internal successors, (29287), 10388 states have internal predecessors, (29287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:49,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10389 states to 10389 states and 29287 transitions. [2022-01-18 11:03:49,411 INFO L78 Accepts]: Start accepts. Automaton has 10389 states and 29287 transitions. Word has length 101 [2022-01-18 11:03:49,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:49,411 INFO L470 AbstractCegarLoop]: Abstraction has 10389 states and 29287 transitions. [2022-01-18 11:03:49,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:49,412 INFO L276 IsEmpty]: Start isEmpty. Operand 10389 states and 29287 transitions. [2022-01-18 11:03:49,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:49,430 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:49,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:49,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 11:03:49,430 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:49,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:49,431 INFO L85 PathProgramCache]: Analyzing trace with hash -163430860, now seen corresponding path program 7 times [2022-01-18 11:03:49,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:49,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026720392] [2022-01-18 11:03:49,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:49,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:49,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:49,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:49,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026720392] [2022-01-18 11:03:49,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026720392] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:49,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:49,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:49,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991742964] [2022-01-18 11:03:49,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:49,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:49,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:49,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:49,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:49,564 INFO L87 Difference]: Start difference. First operand 10389 states and 29287 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:49,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:49,884 INFO L93 Difference]: Finished difference Result 11627 states and 32565 transitions. [2022-01-18 11:03:49,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:03:49,885 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:49,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:49,907 INFO L225 Difference]: With dead ends: 11627 [2022-01-18 11:03:49,908 INFO L226 Difference]: Without dead ends: 11101 [2022-01-18 11:03:49,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:03:49,909 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 139 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1841 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:49,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 1841 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:49,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11101 states. [2022-01-18 11:03:50,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11101 to 10385. [2022-01-18 11:03:50,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10385 states, 10384 states have (on average 2.819337442218798) internal successors, (29276), 10384 states have internal predecessors, (29276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:50,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10385 states to 10385 states and 29276 transitions. [2022-01-18 11:03:50,147 INFO L78 Accepts]: Start accepts. Automaton has 10385 states and 29276 transitions. Word has length 101 [2022-01-18 11:03:50,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:50,147 INFO L470 AbstractCegarLoop]: Abstraction has 10385 states and 29276 transitions. [2022-01-18 11:03:50,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:50,147 INFO L276 IsEmpty]: Start isEmpty. Operand 10385 states and 29276 transitions. [2022-01-18 11:03:50,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:50,165 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:50,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:50,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 11:03:50,165 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:50,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:50,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1465189348, now seen corresponding path program 8 times [2022-01-18 11:03:50,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:50,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810863055] [2022-01-18 11:03:50,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:50,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:50,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:50,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:50,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810863055] [2022-01-18 11:03:50,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810863055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:50,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:50,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:50,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740491529] [2022-01-18 11:03:50,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:50,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:50,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:50,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:50,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:50,291 INFO L87 Difference]: Start difference. First operand 10385 states and 29276 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:50,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:50,613 INFO L93 Difference]: Finished difference Result 11677 states and 32685 transitions. [2022-01-18 11:03:50,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:03:50,614 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:50,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:50,637 INFO L225 Difference]: With dead ends: 11677 [2022-01-18 11:03:50,637 INFO L226 Difference]: Without dead ends: 11149 [2022-01-18 11:03:50,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:03:50,638 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 159 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 1919 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:50,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 1919 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:50,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11149 states. [2022-01-18 11:03:50,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11149 to 10389. [2022-01-18 11:03:50,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10389 states, 10388 states have (on average 2.8189256834809395) internal successors, (29283), 10388 states have internal predecessors, (29283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:50,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10389 states to 10389 states and 29283 transitions. [2022-01-18 11:03:50,840 INFO L78 Accepts]: Start accepts. Automaton has 10389 states and 29283 transitions. Word has length 101 [2022-01-18 11:03:50,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:50,841 INFO L470 AbstractCegarLoop]: Abstraction has 10389 states and 29283 transitions. [2022-01-18 11:03:50,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:50,841 INFO L276 IsEmpty]: Start isEmpty. Operand 10389 states and 29283 transitions. [2022-01-18 11:03:50,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:50,857 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:50,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:50,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 11:03:50,857 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:50,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:50,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1042842994, now seen corresponding path program 9 times [2022-01-18 11:03:50,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:50,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969024162] [2022-01-18 11:03:50,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:50,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:50,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:50,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:50,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969024162] [2022-01-18 11:03:50,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969024162] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:50,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:50,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:50,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834159745] [2022-01-18 11:03:50,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:50,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:50,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:50,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:50,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:50,970 INFO L87 Difference]: Start difference. First operand 10389 states and 29283 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:51,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:51,269 INFO L93 Difference]: Finished difference Result 11521 states and 32277 transitions. [2022-01-18 11:03:51,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:03:51,269 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:51,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:51,292 INFO L225 Difference]: With dead ends: 11521 [2022-01-18 11:03:51,292 INFO L226 Difference]: Without dead ends: 11036 [2022-01-18 11:03:51,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:03:51,295 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 122 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:51,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 2355 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:51,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11036 states. [2022-01-18 11:03:51,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11036 to 10393. [2022-01-18 11:03:51,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10393 states, 10392 states have (on average 2.8185142417244036) internal successors, (29290), 10392 states have internal predecessors, (29290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:51,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10393 states to 10393 states and 29290 transitions. [2022-01-18 11:03:51,493 INFO L78 Accepts]: Start accepts. Automaton has 10393 states and 29290 transitions. Word has length 101 [2022-01-18 11:03:51,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:51,493 INFO L470 AbstractCegarLoop]: Abstraction has 10393 states and 29290 transitions. [2022-01-18 11:03:51,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:51,494 INFO L276 IsEmpty]: Start isEmpty. Operand 10393 states and 29290 transitions. [2022-01-18 11:03:51,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:51,510 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:51,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:51,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 11:03:51,511 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:51,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:51,511 INFO L85 PathProgramCache]: Analyzing trace with hash -361222340, now seen corresponding path program 10 times [2022-01-18 11:03:51,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:51,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72344625] [2022-01-18 11:03:51,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:51,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:51,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:51,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:51,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72344625] [2022-01-18 11:03:51,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72344625] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:51,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:51,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:51,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374990726] [2022-01-18 11:03:51,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:51,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:51,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:51,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:51,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:51,644 INFO L87 Difference]: Start difference. First operand 10393 states and 29290 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:51,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:51,909 INFO L93 Difference]: Finished difference Result 11447 states and 32078 transitions. [2022-01-18 11:03:51,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:03:51,910 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:51,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:51,928 INFO L225 Difference]: With dead ends: 11447 [2022-01-18 11:03:51,928 INFO L226 Difference]: Without dead ends: 10935 [2022-01-18 11:03:51,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:03:51,929 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 108 mSDsluCounter, 2063 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:51,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 2310 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:51,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10935 states. [2022-01-18 11:03:52,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10935 to 10363. [2022-01-18 11:03:52,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10363 states, 10362 states have (on average 2.820304960432349) internal successors, (29224), 10362 states have internal predecessors, (29224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:52,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10363 states to 10363 states and 29224 transitions. [2022-01-18 11:03:52,121 INFO L78 Accepts]: Start accepts. Automaton has 10363 states and 29224 transitions. Word has length 101 [2022-01-18 11:03:52,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:52,121 INFO L470 AbstractCegarLoop]: Abstraction has 10363 states and 29224 transitions. [2022-01-18 11:03:52,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:52,121 INFO L276 IsEmpty]: Start isEmpty. Operand 10363 states and 29224 transitions. [2022-01-18 11:03:52,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:52,134 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:52,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:52,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 11:03:52,135 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:52,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:52,135 INFO L85 PathProgramCache]: Analyzing trace with hash -774742998, now seen corresponding path program 11 times [2022-01-18 11:03:52,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:52,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14207422] [2022-01-18 11:03:52,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:52,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:52,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:52,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:52,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14207422] [2022-01-18 11:03:52,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14207422] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:52,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:52,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:52,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785249948] [2022-01-18 11:03:52,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:52,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:52,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:52,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:52,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:52,240 INFO L87 Difference]: Start difference. First operand 10363 states and 29224 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:52,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:52,534 INFO L93 Difference]: Finished difference Result 11966 states and 33522 transitions. [2022-01-18 11:03:52,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:03:52,535 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:52,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:52,553 INFO L225 Difference]: With dead ends: 11966 [2022-01-18 11:03:52,553 INFO L226 Difference]: Without dead ends: 11481 [2022-01-18 11:03:52,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:03:52,554 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 124 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 2339 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:52,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 2339 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:52,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11481 states. [2022-01-18 11:03:52,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11481 to 10383. [2022-01-18 11:03:52,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10383 states, 10382 states have (on average 2.8197842419572337) internal successors, (29275), 10382 states have internal predecessors, (29275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:52,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 29275 transitions. [2022-01-18 11:03:52,732 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 29275 transitions. Word has length 101 [2022-01-18 11:03:52,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:52,733 INFO L470 AbstractCegarLoop]: Abstraction has 10383 states and 29275 transitions. [2022-01-18 11:03:52,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:52,733 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 29275 transitions. [2022-01-18 11:03:52,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:52,746 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:52,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:52,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 11:03:52,746 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:52,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:52,747 INFO L85 PathProgramCache]: Analyzing trace with hash -93122344, now seen corresponding path program 12 times [2022-01-18 11:03:52,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:52,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671720681] [2022-01-18 11:03:52,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:52,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:52,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:52,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:52,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671720681] [2022-01-18 11:03:52,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671720681] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:52,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:52,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:52,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335498061] [2022-01-18 11:03:52,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:52,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:52,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:52,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:52,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:52,868 INFO L87 Difference]: Start difference. First operand 10383 states and 29275 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:53,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:53,133 INFO L93 Difference]: Finished difference Result 11924 states and 33411 transitions. [2022-01-18 11:03:53,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:03:53,134 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:53,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:53,157 INFO L225 Difference]: With dead ends: 11924 [2022-01-18 11:03:53,157 INFO L226 Difference]: Without dead ends: 11438 [2022-01-18 11:03:53,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:03:53,158 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 117 mSDsluCounter, 1847 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:53,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 2099 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:53,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11438 states. [2022-01-18 11:03:53,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11438 to 10379. [2022-01-18 11:03:53,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10378 states have (on average 2.8198111389477742) internal successors, (29264), 10378 states have internal predecessors, (29264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:53,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 29264 transitions. [2022-01-18 11:03:53,361 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 29264 transitions. Word has length 101 [2022-01-18 11:03:53,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:53,361 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 29264 transitions. [2022-01-18 11:03:53,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:53,362 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 29264 transitions. [2022-01-18 11:03:53,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:53,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:53,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:53,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 11:03:53,375 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:53,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:53,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1057991466, now seen corresponding path program 13 times [2022-01-18 11:03:53,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:53,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412399461] [2022-01-18 11:03:53,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:53,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:53,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:53,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:53,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412399461] [2022-01-18 11:03:53,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412399461] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:53,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:53,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:53,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790393979] [2022-01-18 11:03:53,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:53,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:53,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:53,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:53,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:53,495 INFO L87 Difference]: Start difference. First operand 10379 states and 29264 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:53,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:53,823 INFO L93 Difference]: Finished difference Result 12056 states and 33758 transitions. [2022-01-18 11:03:53,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:03:53,824 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:53,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:53,843 INFO L225 Difference]: With dead ends: 12056 [2022-01-18 11:03:53,844 INFO L226 Difference]: Without dead ends: 11530 [2022-01-18 11:03:53,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:03:53,845 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 155 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:53,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 1942 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:53,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11530 states. [2022-01-18 11:03:53,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11530 to 10375. [2022-01-18 11:03:53,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10375 states, 10374 states have (on average 2.8198380566801617) internal successors, (29253), 10374 states have internal predecessors, (29253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:54,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10375 states to 10375 states and 29253 transitions. [2022-01-18 11:03:54,010 INFO L78 Accepts]: Start accepts. Automaton has 10375 states and 29253 transitions. Word has length 101 [2022-01-18 11:03:54,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:54,011 INFO L470 AbstractCegarLoop]: Abstraction has 10375 states and 29253 transitions. [2022-01-18 11:03:54,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:54,011 INFO L276 IsEmpty]: Start isEmpty. Operand 10375 states and 29253 transitions. [2022-01-18 11:03:54,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:54,026 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:54,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:54,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 11:03:54,026 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:54,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:54,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1608355622, now seen corresponding path program 14 times [2022-01-18 11:03:54,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:54,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232866202] [2022-01-18 11:03:54,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:54,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:54,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:54,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:54,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232866202] [2022-01-18 11:03:54,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232866202] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:54,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:54,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:54,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497683832] [2022-01-18 11:03:54,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:54,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:54,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:54,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:54,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:54,120 INFO L87 Difference]: Start difference. First operand 10375 states and 29253 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:54,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:54,417 INFO L93 Difference]: Finished difference Result 12058 states and 33746 transitions. [2022-01-18 11:03:54,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:03:54,417 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:54,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:54,440 INFO L225 Difference]: With dead ends: 12058 [2022-01-18 11:03:54,441 INFO L226 Difference]: Without dead ends: 11530 [2022-01-18 11:03:54,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:03:54,441 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 160 mSDsluCounter, 2104 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 2349 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:54,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 2349 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:54,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11530 states. [2022-01-18 11:03:54,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11530 to 10379. [2022-01-18 11:03:54,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10378 states have (on average 2.819425708228946) internal successors, (29260), 10378 states have internal predecessors, (29260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:54,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 29260 transitions. [2022-01-18 11:03:54,601 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 29260 transitions. Word has length 101 [2022-01-18 11:03:54,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:54,602 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 29260 transitions. [2022-01-18 11:03:54,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:54,602 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 29260 transitions. [2022-01-18 11:03:54,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:54,615 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:54,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:54,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 11:03:54,616 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:54,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:54,616 INFO L85 PathProgramCache]: Analyzing trace with hash 178579332, now seen corresponding path program 15 times [2022-01-18 11:03:54,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:54,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929677014] [2022-01-18 11:03:54,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:54,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:54,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:54,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:54,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929677014] [2022-01-18 11:03:54,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929677014] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:54,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:54,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:54,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170004486] [2022-01-18 11:03:54,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:54,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:54,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:54,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:54,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:54,725 INFO L87 Difference]: Start difference. First operand 10379 states and 29260 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:55,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:55,057 INFO L93 Difference]: Finished difference Result 11926 states and 33404 transitions. [2022-01-18 11:03:55,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:03:55,057 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:55,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:55,076 INFO L225 Difference]: With dead ends: 11926 [2022-01-18 11:03:55,077 INFO L226 Difference]: Without dead ends: 11441 [2022-01-18 11:03:55,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:03:55,077 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 138 mSDsluCounter, 2039 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:55,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 2278 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:55,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11441 states. [2022-01-18 11:03:55,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11441 to 10383. [2022-01-18 11:03:55,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10383 states, 10382 states have (on average 2.8190136775187824) internal successors, (29267), 10382 states have internal predecessors, (29267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:55,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 29267 transitions. [2022-01-18 11:03:55,214 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 29267 transitions. Word has length 101 [2022-01-18 11:03:55,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:55,214 INFO L470 AbstractCegarLoop]: Abstraction has 10383 states and 29267 transitions. [2022-01-18 11:03:55,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:55,214 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 29267 transitions. [2022-01-18 11:03:55,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:55,227 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:55,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:55,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 11:03:55,227 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:55,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:55,228 INFO L85 PathProgramCache]: Analyzing trace with hash 860199986, now seen corresponding path program 16 times [2022-01-18 11:03:55,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:55,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147068798] [2022-01-18 11:03:55,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:55,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:55,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:55,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:55,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147068798] [2022-01-18 11:03:55,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147068798] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:55,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:55,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:55,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160454910] [2022-01-18 11:03:55,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:55,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:55,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:55,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:55,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:55,326 INFO L87 Difference]: Start difference. First operand 10383 states and 29267 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:55,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:55,537 INFO L93 Difference]: Finished difference Result 11876 states and 33271 transitions. [2022-01-18 11:03:55,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:03:55,537 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:55,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:55,555 INFO L225 Difference]: With dead ends: 11876 [2022-01-18 11:03:55,555 INFO L226 Difference]: Without dead ends: 11382 [2022-01-18 11:03:55,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:03:55,555 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 120 mSDsluCounter, 1705 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:55,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 1954 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:55,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11382 states. [2022-01-18 11:03:55,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11382 to 10371. [2022-01-18 11:03:55,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10371 states, 10370 states have (on average 2.819864995178399) internal successors, (29242), 10370 states have internal predecessors, (29242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:55,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10371 states to 10371 states and 29242 transitions. [2022-01-18 11:03:55,697 INFO L78 Accepts]: Start accepts. Automaton has 10371 states and 29242 transitions. Word has length 101 [2022-01-18 11:03:55,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:55,697 INFO L470 AbstractCegarLoop]: Abstraction has 10371 states and 29242 transitions. [2022-01-18 11:03:55,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:55,697 INFO L276 IsEmpty]: Start isEmpty. Operand 10371 states and 29242 transitions. [2022-01-18 11:03:55,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:55,711 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:55,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:55,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 11:03:55,712 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:55,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:55,712 INFO L85 PathProgramCache]: Analyzing trace with hash 122641612, now seen corresponding path program 17 times [2022-01-18 11:03:55,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:55,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821341909] [2022-01-18 11:03:55,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:55,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:55,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:55,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:55,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:55,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821341909] [2022-01-18 11:03:55,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821341909] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:55,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:55,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:55,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403974023] [2022-01-18 11:03:55,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:55,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:55,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:55,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:55,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:55,828 INFO L87 Difference]: Start difference. First operand 10371 states and 29242 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:56,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:56,034 INFO L93 Difference]: Finished difference Result 11870 states and 33254 transitions. [2022-01-18 11:03:56,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:03:56,035 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:56,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:56,054 INFO L225 Difference]: With dead ends: 11870 [2022-01-18 11:03:56,054 INFO L226 Difference]: Without dead ends: 11385 [2022-01-18 11:03:56,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:03:56,055 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 196 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:56,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 1744 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:56,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11385 states. [2022-01-18 11:03:56,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11385 to 10387. [2022-01-18 11:03:56,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10387 states, 10386 states have (on average 2.819372231850568) internal successors, (29282), 10386 states have internal predecessors, (29282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:56,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10387 states to 10387 states and 29282 transitions. [2022-01-18 11:03:56,200 INFO L78 Accepts]: Start accepts. Automaton has 10387 states and 29282 transitions. Word has length 101 [2022-01-18 11:03:56,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:56,201 INFO L470 AbstractCegarLoop]: Abstraction has 10387 states and 29282 transitions. [2022-01-18 11:03:56,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:56,201 INFO L276 IsEmpty]: Start isEmpty. Operand 10387 states and 29282 transitions. [2022-01-18 11:03:56,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:56,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:56,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:56,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 11:03:56,214 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:56,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:56,215 INFO L85 PathProgramCache]: Analyzing trace with hash 804262266, now seen corresponding path program 18 times [2022-01-18 11:03:56,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:56,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009070033] [2022-01-18 11:03:56,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:56,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:56,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:56,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:56,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009070033] [2022-01-18 11:03:56,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009070033] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:56,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:56,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:56,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720814410] [2022-01-18 11:03:56,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:56,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:56,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:56,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:56,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:56,309 INFO L87 Difference]: Start difference. First operand 10387 states and 29282 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:56,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:56,536 INFO L93 Difference]: Finished difference Result 11832 states and 33154 transitions. [2022-01-18 11:03:56,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:03:56,536 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:56,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:56,558 INFO L225 Difference]: With dead ends: 11832 [2022-01-18 11:03:56,558 INFO L226 Difference]: Without dead ends: 11346 [2022-01-18 11:03:56,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:03:56,559 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 216 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2253 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:56,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2253 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:56,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11346 states. [2022-01-18 11:03:56,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11346 to 10383. [2022-01-18 11:03:56,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10383 states, 10382 states have (on average 2.8193989597380082) internal successors, (29271), 10382 states have internal predecessors, (29271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:56,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 29271 transitions. [2022-01-18 11:03:56,705 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 29271 transitions. Word has length 101 [2022-01-18 11:03:56,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:56,705 INFO L470 AbstractCegarLoop]: Abstraction has 10383 states and 29271 transitions. [2022-01-18 11:03:56,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:56,706 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 29271 transitions. [2022-01-18 11:03:56,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:56,719 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:56,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:56,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 11:03:56,719 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:56,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:56,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1955376076, now seen corresponding path program 19 times [2022-01-18 11:03:56,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:56,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096015886] [2022-01-18 11:03:56,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:56,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:56,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:56,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:56,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096015886] [2022-01-18 11:03:56,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096015886] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:56,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:56,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:56,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203566610] [2022-01-18 11:03:56,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:56,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:56,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:56,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:56,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:56,822 INFO L87 Difference]: Start difference. First operand 10383 states and 29271 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:57,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:57,084 INFO L93 Difference]: Finished difference Result 11868 states and 33249 transitions. [2022-01-18 11:03:57,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:03:57,084 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:57,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:57,101 INFO L225 Difference]: With dead ends: 11868 [2022-01-18 11:03:57,102 INFO L226 Difference]: Without dead ends: 11342 [2022-01-18 11:03:57,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:03:57,102 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 249 mSDsluCounter, 2299 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:57,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 2580 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:57,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11342 states. [2022-01-18 11:03:57,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11342 to 10379. [2022-01-18 11:03:57,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10378 states have (on average 2.819425708228946) internal successors, (29260), 10378 states have internal predecessors, (29260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:57,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 29260 transitions. [2022-01-18 11:03:57,240 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 29260 transitions. Word has length 101 [2022-01-18 11:03:57,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:57,240 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 29260 transitions. [2022-01-18 11:03:57,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:57,241 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 29260 transitions. [2022-01-18 11:03:57,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:57,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:57,253 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:57,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 11:03:57,253 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:57,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:57,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1147543880, now seen corresponding path program 20 times [2022-01-18 11:03:57,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:57,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83273430] [2022-01-18 11:03:57,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:57,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:57,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:57,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:57,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83273430] [2022-01-18 11:03:57,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83273430] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:57,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:57,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:57,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402439598] [2022-01-18 11:03:57,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:57,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:57,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:57,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:57,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:57,346 INFO L87 Difference]: Start difference. First operand 10379 states and 29260 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:57,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:57,612 INFO L93 Difference]: Finished difference Result 13198 states and 36719 transitions. [2022-01-18 11:03:57,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:03:57,612 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:57,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:57,632 INFO L225 Difference]: With dead ends: 13198 [2022-01-18 11:03:57,632 INFO L226 Difference]: Without dead ends: 12492 [2022-01-18 11:03:57,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:03:57,633 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 467 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 2119 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:57,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [467 Valid, 2119 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:57,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12492 states. [2022-01-18 11:03:57,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12492 to 10275. [2022-01-18 11:03:57,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10275 states, 10274 states have (on average 2.8221724742067353) internal successors, (28995), 10274 states have internal predecessors, (28995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:57,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10275 states to 10275 states and 28995 transitions. [2022-01-18 11:03:57,776 INFO L78 Accepts]: Start accepts. Automaton has 10275 states and 28995 transitions. Word has length 101 [2022-01-18 11:03:57,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:57,776 INFO L470 AbstractCegarLoop]: Abstraction has 10275 states and 28995 transitions. [2022-01-18 11:03:57,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:57,776 INFO L276 IsEmpty]: Start isEmpty. Operand 10275 states and 28995 transitions. [2022-01-18 11:03:57,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:57,789 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:57,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:57,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 11:03:57,789 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:57,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:57,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1337178174, now seen corresponding path program 1 times [2022-01-18 11:03:57,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:57,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839940000] [2022-01-18 11:03:57,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:57,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:57,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:57,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:57,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839940000] [2022-01-18 11:03:57,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839940000] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:57,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:57,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 11:03:57,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617744425] [2022-01-18 11:03:57,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:57,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 11:03:57,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:57,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 11:03:57,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:03:57,821 INFO L87 Difference]: Start difference. First operand 10275 states and 28995 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:57,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:57,866 INFO L93 Difference]: Finished difference Result 9393 states and 26084 transitions. [2022-01-18 11:03:57,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 11:03:57,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:57,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:57,881 INFO L225 Difference]: With dead ends: 9393 [2022-01-18 11:03:57,882 INFO L226 Difference]: Without dead ends: 9393 [2022-01-18 11:03:57,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:03:57,882 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 130 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:57,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 213 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:03:57,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9393 states. [2022-01-18 11:03:57,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9393 to 9393. [2022-01-18 11:03:57,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9393 states, 9392 states have (on average 2.7772572402044293) internal successors, (26084), 9392 states have internal predecessors, (26084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:57,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9393 states to 9393 states and 26084 transitions. [2022-01-18 11:03:57,998 INFO L78 Accepts]: Start accepts. Automaton has 9393 states and 26084 transitions. Word has length 101 [2022-01-18 11:03:57,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:57,999 INFO L470 AbstractCegarLoop]: Abstraction has 9393 states and 26084 transitions. [2022-01-18 11:03:57,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:57,999 INFO L276 IsEmpty]: Start isEmpty. Operand 9393 states and 26084 transitions. [2022-01-18 11:03:58,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:58,014 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:58,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:58,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 11:03:58,014 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:58,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:58,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1661801566, now seen corresponding path program 1 times [2022-01-18 11:03:58,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:58,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870832197] [2022-01-18 11:03:58,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:58,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:58,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:58,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:58,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870832197] [2022-01-18 11:03:58,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870832197] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:58,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:58,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:58,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674528868] [2022-01-18 11:03:58,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:58,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:58,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:58,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:58,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:58,129 INFO L87 Difference]: Start difference. First operand 9393 states and 26084 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:58,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:58,371 INFO L93 Difference]: Finished difference Result 10497 states and 28835 transitions. [2022-01-18 11:03:58,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:03:58,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:58,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:58,386 INFO L225 Difference]: With dead ends: 10497 [2022-01-18 11:03:58,386 INFO L226 Difference]: Without dead ends: 9786 [2022-01-18 11:03:58,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2022-01-18 11:03:58,387 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 250 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:58,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 1496 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:58,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9786 states. [2022-01-18 11:03:58,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9786 to 9204. [2022-01-18 11:03:58,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9204 states, 9203 states have (on average 2.783440182549169) internal successors, (25616), 9203 states have internal predecessors, (25616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:58,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9204 states to 9204 states and 25616 transitions. [2022-01-18 11:03:58,504 INFO L78 Accepts]: Start accepts. Automaton has 9204 states and 25616 transitions. Word has length 101 [2022-01-18 11:03:58,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:58,504 INFO L470 AbstractCegarLoop]: Abstraction has 9204 states and 25616 transitions. [2022-01-18 11:03:58,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:58,504 INFO L276 IsEmpty]: Start isEmpty. Operand 9204 states and 25616 transitions. [2022-01-18 11:03:58,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:58,515 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:58,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:58,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 11:03:58,515 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:58,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:58,516 INFO L85 PathProgramCache]: Analyzing trace with hash -2035505446, now seen corresponding path program 2 times [2022-01-18 11:03:58,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:58,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356260554] [2022-01-18 11:03:58,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:58,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:58,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:58,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:58,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:58,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356260554] [2022-01-18 11:03:58,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356260554] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:58,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:58,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:58,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403059371] [2022-01-18 11:03:58,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:58,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:58,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:58,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:58,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:58,617 INFO L87 Difference]: Start difference. First operand 9204 states and 25616 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:58,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:58,924 INFO L93 Difference]: Finished difference Result 10091 states and 27888 transitions. [2022-01-18 11:03:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:03:58,924 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:58,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:58,942 INFO L225 Difference]: With dead ends: 10091 [2022-01-18 11:03:58,942 INFO L226 Difference]: Without dead ends: 9569 [2022-01-18 11:03:58,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-01-18 11:03:58,943 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 149 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1927 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:58,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 1927 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:58,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9569 states. [2022-01-18 11:03:59,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9569 to 9208. [2022-01-18 11:03:59,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 2.7829912023460412) internal successors, (25623), 9207 states have internal predecessors, (25623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:59,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 25623 transitions. [2022-01-18 11:03:59,071 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 25623 transitions. Word has length 101 [2022-01-18 11:03:59,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:59,071 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 25623 transitions. [2022-01-18 11:03:59,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:59,072 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 25623 transitions. [2022-01-18 11:03:59,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:59,082 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:59,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:59,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 11:03:59,083 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:59,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:59,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1953590340, now seen corresponding path program 3 times [2022-01-18 11:03:59,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:59,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320269434] [2022-01-18 11:03:59,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:59,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:59,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:59,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:59,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320269434] [2022-01-18 11:03:59,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320269434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:59,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:59,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:59,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047234045] [2022-01-18 11:03:59,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:59,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:59,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:59,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:59,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:59,186 INFO L87 Difference]: Start difference. First operand 9208 states and 25623 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:59,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:59,388 INFO L93 Difference]: Finished difference Result 9966 states and 27559 transitions. [2022-01-18 11:03:59,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:03:59,388 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:59,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:59,402 INFO L225 Difference]: With dead ends: 9966 [2022-01-18 11:03:59,402 INFO L226 Difference]: Without dead ends: 9487 [2022-01-18 11:03:59,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:03:59,402 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 105 mSDsluCounter, 1466 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:59,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 1684 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:59,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9487 states. [2022-01-18 11:03:59,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9487 to 9212. [2022-01-18 11:03:59,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9212 states, 9211 states have (on average 2.782542612094235) internal successors, (25630), 9211 states have internal predecessors, (25630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:59,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9212 states to 9212 states and 25630 transitions. [2022-01-18 11:03:59,520 INFO L78 Accepts]: Start accepts. Automaton has 9212 states and 25630 transitions. Word has length 101 [2022-01-18 11:03:59,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:59,520 INFO L470 AbstractCegarLoop]: Abstraction has 9212 states and 25630 transitions. [2022-01-18 11:03:59,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:59,520 INFO L276 IsEmpty]: Start isEmpty. Operand 9212 states and 25630 transitions. [2022-01-18 11:03:59,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:59,531 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:59,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:59,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 11:03:59,531 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:59,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:59,531 INFO L85 PathProgramCache]: Analyzing trace with hash -713853838, now seen corresponding path program 4 times [2022-01-18 11:03:59,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:59,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131606888] [2022-01-18 11:03:59,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:59,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:03:59,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:03:59,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:03:59,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131606888] [2022-01-18 11:03:59,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131606888] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:03:59,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:03:59,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:03:59,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008889318] [2022-01-18 11:03:59,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:03:59,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:03:59,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:03:59,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:03:59,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:03:59,644 INFO L87 Difference]: Start difference. First operand 9212 states and 25630 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:59,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:03:59,828 INFO L93 Difference]: Finished difference Result 9908 states and 27404 transitions. [2022-01-18 11:03:59,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:03:59,828 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:03:59,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:03:59,841 INFO L225 Difference]: With dead ends: 9908 [2022-01-18 11:03:59,841 INFO L226 Difference]: Without dead ends: 9406 [2022-01-18 11:03:59,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:03:59,842 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 90 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:03:59,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 1818 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:03:59,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9406 states. [2022-01-18 11:03:59,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9406 to 9186. [2022-01-18 11:03:59,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9186 states, 9185 states have (on average 2.7839956450734893) internal successors, (25571), 9185 states have internal predecessors, (25571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:59,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9186 states to 9186 states and 25571 transitions. [2022-01-18 11:03:59,958 INFO L78 Accepts]: Start accepts. Automaton has 9186 states and 25571 transitions. Word has length 101 [2022-01-18 11:03:59,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:03:59,959 INFO L470 AbstractCegarLoop]: Abstraction has 9186 states and 25571 transitions. [2022-01-18 11:03:59,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:03:59,959 INFO L276 IsEmpty]: Start isEmpty. Operand 9186 states and 25571 transitions. [2022-01-18 11:03:59,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:03:59,969 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:03:59,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:03:59,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 11:03:59,969 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:03:59,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:03:59,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1508449932, now seen corresponding path program 5 times [2022-01-18 11:03:59,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:03:59,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518074203] [2022-01-18 11:03:59,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:03:59,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:03:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:00,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:00,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:00,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518074203] [2022-01-18 11:04:00,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518074203] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:00,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:00,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:04:00,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156736022] [2022-01-18 11:04:00,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:00,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:04:00,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:00,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:04:00,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:04:00,074 INFO L87 Difference]: Start difference. First operand 9186 states and 25571 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:00,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:00,283 INFO L93 Difference]: Finished difference Result 10016 states and 27705 transitions. [2022-01-18 11:04:00,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:04:00,283 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:04:00,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:00,297 INFO L225 Difference]: With dead ends: 10016 [2022-01-18 11:04:00,297 INFO L226 Difference]: Without dead ends: 9537 [2022-01-18 11:04:00,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:04:00,298 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 98 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:00,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 1799 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:00,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9537 states. [2022-01-18 11:04:00,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9537 to 9198. [2022-01-18 11:04:00,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9198 states, 9197 states have (on average 2.7835163640317493) internal successors, (25600), 9197 states have internal predecessors, (25600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:00,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9198 states to 9198 states and 25600 transitions. [2022-01-18 11:04:00,480 INFO L78 Accepts]: Start accepts. Automaton has 9198 states and 25600 transitions. Word has length 101 [2022-01-18 11:04:00,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:00,480 INFO L470 AbstractCegarLoop]: Abstraction has 9198 states and 25600 transitions. [2022-01-18 11:04:00,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:00,480 INFO L276 IsEmpty]: Start isEmpty. Operand 9198 states and 25600 transitions. [2022-01-18 11:04:00,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:04:00,490 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:00,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:00,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 11:04:00,490 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:00,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:00,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1158994246, now seen corresponding path program 6 times [2022-01-18 11:04:00,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:00,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588453710] [2022-01-18 11:04:00,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:00,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:00,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:00,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:00,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588453710] [2022-01-18 11:04:00,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588453710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:00,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:00,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:04:00,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101267848] [2022-01-18 11:04:00,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:00,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:04:00,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:00,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:04:00,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:04:00,598 INFO L87 Difference]: Start difference. First operand 9198 states and 25600 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:00,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:00,806 INFO L93 Difference]: Finished difference Result 9974 states and 27594 transitions. [2022-01-18 11:04:00,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:04:00,806 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:04:00,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:00,825 INFO L225 Difference]: With dead ends: 9974 [2022-01-18 11:04:00,825 INFO L226 Difference]: Without dead ends: 9494 [2022-01-18 11:04:00,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:04:00,826 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 94 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:00,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 1225 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:00,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9494 states. [2022-01-18 11:04:00,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9494 to 9194. [2022-01-18 11:04:00,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9194 states, 9193 states have (on average 2.783530947460024) internal successors, (25589), 9193 states have internal predecessors, (25589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:00,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9194 states to 9194 states and 25589 transitions. [2022-01-18 11:04:00,986 INFO L78 Accepts]: Start accepts. Automaton has 9194 states and 25589 transitions. Word has length 101 [2022-01-18 11:04:00,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:00,986 INFO L470 AbstractCegarLoop]: Abstraction has 9194 states and 25589 transitions. [2022-01-18 11:04:00,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:00,987 INFO L276 IsEmpty]: Start isEmpty. Operand 9194 states and 25589 transitions. [2022-01-18 11:04:00,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:04:00,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:00,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:00,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 11:04:00,998 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:00,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:00,998 INFO L85 PathProgramCache]: Analyzing trace with hash 2014915710, now seen corresponding path program 7 times [2022-01-18 11:04:00,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:00,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455729670] [2022-01-18 11:04:00,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:00,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:01,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:01,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:01,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455729670] [2022-01-18 11:04:01,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455729670] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:01,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:01,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:04:01,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474097595] [2022-01-18 11:04:01,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:01,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:04:01,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:01,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:04:01,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:04:01,084 INFO L87 Difference]: Start difference. First operand 9194 states and 25589 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:01,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:01,299 INFO L93 Difference]: Finished difference Result 10122 states and 27981 transitions. [2022-01-18 11:04:01,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:04:01,300 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:04:01,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:01,315 INFO L225 Difference]: With dead ends: 10122 [2022-01-18 11:04:01,315 INFO L226 Difference]: Without dead ends: 9602 [2022-01-18 11:04:01,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:04:01,316 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 135 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:01,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 1615 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:01,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9602 states. [2022-01-18 11:04:01,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9602 to 9190. [2022-01-18 11:04:01,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9190 states, 9189 states have (on average 2.783545543584721) internal successors, (25578), 9189 states have internal predecessors, (25578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:01,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9190 states to 9190 states and 25578 transitions. [2022-01-18 11:04:01,447 INFO L78 Accepts]: Start accepts. Automaton has 9190 states and 25578 transitions. Word has length 101 [2022-01-18 11:04:01,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:01,447 INFO L470 AbstractCegarLoop]: Abstraction has 9190 states and 25578 transitions. [2022-01-18 11:04:01,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:01,447 INFO L276 IsEmpty]: Start isEmpty. Operand 9190 states and 25578 transitions. [2022-01-18 11:04:01,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:04:01,458 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:01,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:01,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 11:04:01,459 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:01,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:01,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1352894776, now seen corresponding path program 8 times [2022-01-18 11:04:01,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:01,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305515567] [2022-01-18 11:04:01,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:01,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:01,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:01,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:01,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305515567] [2022-01-18 11:04:01,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305515567] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:01,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:01,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:04:01,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330436817] [2022-01-18 11:04:01,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:01,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:04:01,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:01,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:04:01,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:04:01,558 INFO L87 Difference]: Start difference. First operand 9190 states and 25578 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:01,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:01,831 INFO L93 Difference]: Finished difference Result 10077 states and 27850 transitions. [2022-01-18 11:04:01,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:04:01,831 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:04:01,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:01,847 INFO L225 Difference]: With dead ends: 10077 [2022-01-18 11:04:01,847 INFO L226 Difference]: Without dead ends: 9555 [2022-01-18 11:04:01,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-01-18 11:04:01,848 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 129 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:01,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 2039 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:01,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9555 states. [2022-01-18 11:04:01,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9555 to 9194. [2022-01-18 11:04:01,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9194 states, 9193 states have (on average 2.7830958337865765) internal successors, (25585), 9193 states have internal predecessors, (25585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:01,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9194 states to 9194 states and 25585 transitions. [2022-01-18 11:04:01,975 INFO L78 Accepts]: Start accepts. Automaton has 9194 states and 25585 transitions. Word has length 101 [2022-01-18 11:04:01,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:01,976 INFO L470 AbstractCegarLoop]: Abstraction has 9194 states and 25585 transitions. [2022-01-18 11:04:01,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:01,976 INFO L276 IsEmpty]: Start isEmpty. Operand 9194 states and 25585 transitions. [2022-01-18 11:04:01,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:04:01,987 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:01,987 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:01,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 11:04:01,987 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:01,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:01,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1047023266, now seen corresponding path program 9 times [2022-01-18 11:04:01,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:01,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415431214] [2022-01-18 11:04:01,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:01,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:02,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:02,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:02,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415431214] [2022-01-18 11:04:02,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415431214] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:02,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:02,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:04:02,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064256100] [2022-01-18 11:04:02,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:02,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:04:02,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:02,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:04:02,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:04:02,087 INFO L87 Difference]: Start difference. First operand 9194 states and 25585 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:02,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:02,297 INFO L93 Difference]: Finished difference Result 9960 states and 27543 transitions. [2022-01-18 11:04:02,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:04:02,298 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:04:02,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:02,312 INFO L225 Difference]: With dead ends: 9960 [2022-01-18 11:04:02,312 INFO L226 Difference]: Without dead ends: 9481 [2022-01-18 11:04:02,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:04:02,313 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 101 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1810 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:02,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 1810 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:02,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9481 states. [2022-01-18 11:04:02,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9481 to 9198. [2022-01-18 11:04:02,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9198 states, 9197 states have (on average 2.7826465151679898) internal successors, (25592), 9197 states have internal predecessors, (25592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:02,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9198 states to 9198 states and 25592 transitions. [2022-01-18 11:04:02,428 INFO L78 Accepts]: Start accepts. Automaton has 9198 states and 25592 transitions. Word has length 101 [2022-01-18 11:04:02,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:02,429 INFO L470 AbstractCegarLoop]: Abstraction has 9198 states and 25592 transitions. [2022-01-18 11:04:02,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:02,429 INFO L276 IsEmpty]: Start isEmpty. Operand 9198 states and 25592 transitions. [2022-01-18 11:04:02,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:04:02,440 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:02,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:02,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 11:04:02,440 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:02,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:02,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1620420912, now seen corresponding path program 10 times [2022-01-18 11:04:02,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:02,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12578684] [2022-01-18 11:04:02,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:02,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:02,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:02,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:02,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12578684] [2022-01-18 11:04:02,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12578684] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:02,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:02,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:04:02,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436374333] [2022-01-18 11:04:02,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:02,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:04:02,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:02,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:04:02,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:04:02,555 INFO L87 Difference]: Start difference. First operand 9198 states and 25592 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:02,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:02,791 INFO L93 Difference]: Finished difference Result 9894 states and 27366 transitions. [2022-01-18 11:04:02,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:04:02,791 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:04:02,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:02,810 INFO L225 Difference]: With dead ends: 9894 [2022-01-18 11:04:02,810 INFO L226 Difference]: Without dead ends: 9388 [2022-01-18 11:04:02,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:04:02,811 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 84 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:02,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 1760 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:02,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9388 states. [2022-01-18 11:04:02,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9388 to 9168. [2022-01-18 11:04:02,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9168 states, 9167 states have (on average 2.7845532889713103) internal successors, (25526), 9167 states have internal predecessors, (25526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:02,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9168 states to 9168 states and 25526 transitions. [2022-01-18 11:04:02,943 INFO L78 Accepts]: Start accepts. Automaton has 9168 states and 25526 transitions. Word has length 101 [2022-01-18 11:04:02,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:02,944 INFO L470 AbstractCegarLoop]: Abstraction has 9168 states and 25526 transitions. [2022-01-18 11:04:02,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:02,944 INFO L276 IsEmpty]: Start isEmpty. Operand 9168 states and 25526 transitions. [2022-01-18 11:04:02,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:04:02,955 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:02,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:02,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 11:04:02,955 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:02,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:02,956 INFO L85 PathProgramCache]: Analyzing trace with hash -2141146676, now seen corresponding path program 11 times [2022-01-18 11:04:02,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:02,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756684458] [2022-01-18 11:04:02,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:02,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:03,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:03,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:03,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756684458] [2022-01-18 11:04:03,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756684458] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:03,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:03,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:04:03,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732987882] [2022-01-18 11:04:03,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:03,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:04:03,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:03,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:04:03,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:04:03,041 INFO L87 Difference]: Start difference. First operand 9168 states and 25526 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:03,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:03,265 INFO L93 Difference]: Finished difference Result 9859 states and 27279 transitions. [2022-01-18 11:04:03,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 11:04:03,265 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:04:03,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:03,283 INFO L225 Difference]: With dead ends: 9859 [2022-01-18 11:04:03,284 INFO L226 Difference]: Without dead ends: 9380 [2022-01-18 11:04:03,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:04:03,284 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 115 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:03,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 1365 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:03,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9380 states. [2022-01-18 11:04:03,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9380 to 9176. [2022-01-18 11:04:03,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9176 states, 9175 states have (on average 2.7840871934604903) internal successors, (25544), 9175 states have internal predecessors, (25544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:03,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9176 states to 9176 states and 25544 transitions. [2022-01-18 11:04:03,447 INFO L78 Accepts]: Start accepts. Automaton has 9176 states and 25544 transitions. Word has length 101 [2022-01-18 11:04:03,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:03,447 INFO L470 AbstractCegarLoop]: Abstraction has 9176 states and 25544 transitions. [2022-01-18 11:04:03,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:03,448 INFO L276 IsEmpty]: Start isEmpty. Operand 9176 states and 25544 transitions. [2022-01-18 11:04:03,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:04:03,462 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:03,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:03,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 11:04:03,462 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:03,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:03,463 INFO L85 PathProgramCache]: Analyzing trace with hash -513623558, now seen corresponding path program 12 times [2022-01-18 11:04:03,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:03,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565733276] [2022-01-18 11:04:03,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:03,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:03,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:03,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:03,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565733276] [2022-01-18 11:04:03,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565733276] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:03,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:03,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:04:03,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794057575] [2022-01-18 11:04:03,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:03,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:04:03,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:03,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:04:03,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:04:03,571 INFO L87 Difference]: Start difference. First operand 9176 states and 25544 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:03,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:03,799 INFO L93 Difference]: Finished difference Result 9825 states and 27190 transitions. [2022-01-18 11:04:03,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:04:03,799 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:04:03,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:03,814 INFO L225 Difference]: With dead ends: 9825 [2022-01-18 11:04:03,814 INFO L226 Difference]: Without dead ends: 9345 [2022-01-18 11:04:03,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-01-18 11:04:03,815 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 104 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1809 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:03,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 1809 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:03,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9345 states. [2022-01-18 11:04:03,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9345 to 9172. [2022-01-18 11:04:03,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9172 states, 9171 states have (on average 2.784102060843965) internal successors, (25533), 9171 states have internal predecessors, (25533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:03,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9172 states to 9172 states and 25533 transitions. [2022-01-18 11:04:03,932 INFO L78 Accepts]: Start accepts. Automaton has 9172 states and 25533 transitions. Word has length 101 [2022-01-18 11:04:03,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:03,932 INFO L470 AbstractCegarLoop]: Abstraction has 9172 states and 25533 transitions. [2022-01-18 11:04:03,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:03,932 INFO L276 IsEmpty]: Start isEmpty. Operand 9172 states and 25533 transitions. [2022-01-18 11:04:03,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:04:03,942 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:03,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:03,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 11:04:03,943 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:03,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:03,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1634680898, now seen corresponding path program 13 times [2022-01-18 11:04:03,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:03,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206066107] [2022-01-18 11:04:03,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:03,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:04,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:04,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:04,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206066107] [2022-01-18 11:04:04,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206066107] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:04,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:04,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:04:04,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560970129] [2022-01-18 11:04:04,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:04,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:04:04,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:04,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:04:04,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:04:04,053 INFO L87 Difference]: Start difference. First operand 9172 states and 25533 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:04,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:04,336 INFO L93 Difference]: Finished difference Result 9861 states and 27285 transitions. [2022-01-18 11:04:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 11:04:04,336 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:04:04,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:04,355 INFO L225 Difference]: With dead ends: 9861 [2022-01-18 11:04:04,355 INFO L226 Difference]: Without dead ends: 9341 [2022-01-18 11:04:04,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-01-18 11:04:04,356 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 146 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:04,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 1861 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:04,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9341 states. [2022-01-18 11:04:04,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9341 to 9168. [2022-01-18 11:04:04,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9168 states, 9167 states have (on average 2.784116941202138) internal successors, (25522), 9167 states have internal predecessors, (25522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:04,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9168 states to 9168 states and 25522 transitions. [2022-01-18 11:04:04,490 INFO L78 Accepts]: Start accepts. Automaton has 9168 states and 25522 transitions. Word has length 101 [2022-01-18 11:04:04,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:04,490 INFO L470 AbstractCegarLoop]: Abstraction has 9168 states and 25522 transitions. [2022-01-18 11:04:04,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:04,491 INFO L276 IsEmpty]: Start isEmpty. Operand 9168 states and 25522 transitions. [2022-01-18 11:04:04,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:04:04,501 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:04,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:04,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 11:04:04,501 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:04,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:04,502 INFO L85 PathProgramCache]: Analyzing trace with hash -760242484, now seen corresponding path program 14 times [2022-01-18 11:04:04,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:04,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477306652] [2022-01-18 11:04:04,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:04,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:04,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:04,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:04,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477306652] [2022-01-18 11:04:04,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477306652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:04,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:04,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:04:04,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360536617] [2022-01-18 11:04:04,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:04,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:04:04,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:04,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:04:04,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:04:04,602 INFO L87 Difference]: Start difference. First operand 9168 states and 25522 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:04,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:04,931 INFO L93 Difference]: Finished difference Result 10266 states and 28261 transitions. [2022-01-18 11:04:04,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 11:04:04,932 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:04:04,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:04,949 INFO L225 Difference]: With dead ends: 10266 [2022-01-18 11:04:04,949 INFO L226 Difference]: Without dead ends: 9618 [2022-01-18 11:04:04,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-01-18 11:04:04,951 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 271 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:04,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 1728 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:04,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9618 states. [2022-01-18 11:04:05,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9618 to 9036. [2022-01-18 11:04:05,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9036 states, 9035 states have (on average 2.785058107360266) internal successors, (25163), 9035 states have internal predecessors, (25163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:05,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9036 states to 9036 states and 25163 transitions. [2022-01-18 11:04:05,069 INFO L78 Accepts]: Start accepts. Automaton has 9036 states and 25163 transitions. Word has length 101 [2022-01-18 11:04:05,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:05,070 INFO L470 AbstractCegarLoop]: Abstraction has 9036 states and 25163 transitions. [2022-01-18 11:04:05,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:05,070 INFO L276 IsEmpty]: Start isEmpty. Operand 9036 states and 25163 transitions. [2022-01-18 11:04:05,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:04:05,084 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:05,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:05,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 11:04:05,084 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:05,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:05,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1002250734, now seen corresponding path program 15 times [2022-01-18 11:04:05,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:05,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51933633] [2022-01-18 11:04:05,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:05,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:05,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:05,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:05,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51933633] [2022-01-18 11:04:05,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51933633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:05,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:05,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:04:05,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906308256] [2022-01-18 11:04:05,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:05,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:04:05,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:05,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:04:05,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:04:05,195 INFO L87 Difference]: Start difference. First operand 9036 states and 25163 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:05,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:05,378 INFO L93 Difference]: Finished difference Result 9719 states and 26894 transitions. [2022-01-18 11:04:05,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:04:05,379 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:04:05,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:05,393 INFO L225 Difference]: With dead ends: 9719 [2022-01-18 11:04:05,393 INFO L226 Difference]: Without dead ends: 9240 [2022-01-18 11:04:05,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:04:05,394 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 99 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:05,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 1340 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:05,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9240 states. [2022-01-18 11:04:05,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9240 to 9044. [2022-01-18 11:04:05,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9044 states, 9043 states have (on average 2.784584761694128) internal successors, (25181), 9043 states have internal predecessors, (25181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:05,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9044 states to 9044 states and 25181 transitions. [2022-01-18 11:04:05,509 INFO L78 Accepts]: Start accepts. Automaton has 9044 states and 25181 transitions. Word has length 101 [2022-01-18 11:04:05,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:05,510 INFO L470 AbstractCegarLoop]: Abstraction has 9044 states and 25181 transitions. [2022-01-18 11:04:05,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:05,510 INFO L276 IsEmpty]: Start isEmpty. Operand 9044 states and 25181 transitions. [2022-01-18 11:04:05,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:04:05,520 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:05,520 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:05,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 11:04:05,520 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:05,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:05,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1665193444, now seen corresponding path program 16 times [2022-01-18 11:04:05,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:05,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983578898] [2022-01-18 11:04:05,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:05,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:05,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:05,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:05,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983578898] [2022-01-18 11:04:05,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983578898] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:05,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:05,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:04:05,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377492355] [2022-01-18 11:04:05,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:05,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:04:05,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:05,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:04:05,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:04:05,622 INFO L87 Difference]: Start difference. First operand 9044 states and 25181 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:05,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:05,802 INFO L93 Difference]: Finished difference Result 9677 states and 26783 transitions. [2022-01-18 11:04:05,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:04:05,802 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:04:05,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:05,816 INFO L225 Difference]: With dead ends: 9677 [2022-01-18 11:04:05,816 INFO L226 Difference]: Without dead ends: 9197 [2022-01-18 11:04:05,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-01-18 11:04:05,816 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 87 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:05,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1522 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:05,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9197 states. [2022-01-18 11:04:05,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9197 to 9040. [2022-01-18 11:04:05,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9040 states, 9039 states have (on average 2.7846000663790242) internal successors, (25170), 9039 states have internal predecessors, (25170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:05,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9040 states to 9040 states and 25170 transitions. [2022-01-18 11:04:05,928 INFO L78 Accepts]: Start accepts. Automaton has 9040 states and 25170 transitions. Word has length 101 [2022-01-18 11:04:05,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:05,928 INFO L470 AbstractCegarLoop]: Abstraction has 9040 states and 25170 transitions. [2022-01-18 11:04:05,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:05,928 INFO L276 IsEmpty]: Start isEmpty. Operand 9040 states and 25170 transitions. [2022-01-18 11:04:05,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:04:05,939 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:05,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:05,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 11:04:05,939 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:05,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:05,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1508716512, now seen corresponding path program 17 times [2022-01-18 11:04:05,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:05,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768703284] [2022-01-18 11:04:05,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:05,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:06,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:06,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:06,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768703284] [2022-01-18 11:04:06,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768703284] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:06,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:06,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:04:06,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065765291] [2022-01-18 11:04:06,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:06,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:04:06,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:06,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:04:06,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:04:06,026 INFO L87 Difference]: Start difference. First operand 9040 states and 25170 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:06,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:06,261 INFO L93 Difference]: Finished difference Result 9825 states and 27170 transitions. [2022-01-18 11:04:06,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 11:04:06,261 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:04:06,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:06,274 INFO L225 Difference]: With dead ends: 9825 [2022-01-18 11:04:06,274 INFO L226 Difference]: Without dead ends: 9305 [2022-01-18 11:04:06,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-01-18 11:04:06,275 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 141 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:06,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 1718 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:06,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9305 states. [2022-01-18 11:04:06,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9305 to 9036. [2022-01-18 11:04:06,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9036 states, 9035 states have (on average 2.7846153846153845) internal successors, (25159), 9035 states have internal predecessors, (25159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:06,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9036 states to 9036 states and 25159 transitions. [2022-01-18 11:04:06,388 INFO L78 Accepts]: Start accepts. Automaton has 9036 states and 25159 transitions. Word has length 101 [2022-01-18 11:04:06,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:06,389 INFO L470 AbstractCegarLoop]: Abstraction has 9036 states and 25159 transitions. [2022-01-18 11:04:06,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:06,389 INFO L276 IsEmpty]: Start isEmpty. Operand 9036 states and 25159 transitions. [2022-01-18 11:04:06,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:04:06,400 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:06,400 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:06,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 11:04:06,400 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:06,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:06,400 INFO L85 PathProgramCache]: Analyzing trace with hash 846695578, now seen corresponding path program 18 times [2022-01-18 11:04:06,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:06,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188861387] [2022-01-18 11:04:06,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:06,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:06,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:06,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:06,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188861387] [2022-01-18 11:04:06,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188861387] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:06,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:06,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:04:06,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221500394] [2022-01-18 11:04:06,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:06,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:04:06,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:06,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:04:06,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:04:06,513 INFO L87 Difference]: Start difference. First operand 9036 states and 25159 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:06,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:06,804 INFO L93 Difference]: Finished difference Result 9656 states and 26723 transitions. [2022-01-18 11:04:06,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 11:04:06,805 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:04:06,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:06,818 INFO L225 Difference]: With dead ends: 9656 [2022-01-18 11:04:06,818 INFO L226 Difference]: Without dead ends: 9134 [2022-01-18 11:04:06,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:04:06,819 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 110 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:06,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 1710 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:06,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9134 states. [2022-01-18 11:04:06,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9134 to 8993. [2022-01-18 11:04:06,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8993 states, 8992 states have (on average 2.7850311387900355) internal successors, (25043), 8992 states have internal predecessors, (25043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:06,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8993 states to 8993 states and 25043 transitions. [2022-01-18 11:04:06,945 INFO L78 Accepts]: Start accepts. Automaton has 8993 states and 25043 transitions. Word has length 101 [2022-01-18 11:04:06,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:06,945 INFO L470 AbstractCegarLoop]: Abstraction has 8993 states and 25043 transitions. [2022-01-18 11:04:06,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:06,945 INFO L276 IsEmpty]: Start isEmpty. Operand 8993 states and 25043 transitions. [2022-01-18 11:04:06,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:04:06,957 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:06,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:06,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 11:04:06,957 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:06,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:06,958 INFO L85 PathProgramCache]: Analyzing trace with hash 540824068, now seen corresponding path program 19 times [2022-01-18 11:04:06,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:06,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606672846] [2022-01-18 11:04:06,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:06,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:07,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:07,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:07,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606672846] [2022-01-18 11:04:07,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606672846] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:07,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:07,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:04:07,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609981841] [2022-01-18 11:04:07,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:07,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:04:07,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:07,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:04:07,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:04:07,055 INFO L87 Difference]: Start difference. First operand 8993 states and 25043 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:07,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:07,247 INFO L93 Difference]: Finished difference Result 9570 states and 26495 transitions. [2022-01-18 11:04:07,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 11:04:07,248 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:04:07,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:07,260 INFO L225 Difference]: With dead ends: 9570 [2022-01-18 11:04:07,260 INFO L226 Difference]: Without dead ends: 9091 [2022-01-18 11:04:07,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-01-18 11:04:07,261 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 132 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:07,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 1473 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:07,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9091 states. [2022-01-18 11:04:07,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9091 to 8997. [2022-01-18 11:04:07,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8997 states, 8996 states have (on average 2.7845709204090707) internal successors, (25050), 8996 states have internal predecessors, (25050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:07,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8997 states to 8997 states and 25050 transitions. [2022-01-18 11:04:07,371 INFO L78 Accepts]: Start accepts. Automaton has 8997 states and 25050 transitions. Word has length 101 [2022-01-18 11:04:07,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:07,371 INFO L470 AbstractCegarLoop]: Abstraction has 8997 states and 25050 transitions. [2022-01-18 11:04:07,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:07,372 INFO L276 IsEmpty]: Start isEmpty. Operand 8997 states and 25050 transitions. [2022-01-18 11:04:07,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 11:04:07,382 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:07,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:07,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 11:04:07,382 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:07,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:07,383 INFO L85 PathProgramCache]: Analyzing trace with hash -2126620110, now seen corresponding path program 20 times [2022-01-18 11:04:07,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:07,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58329057] [2022-01-18 11:04:07,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:07,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:07,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:07,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:07,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:07,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58329057] [2022-01-18 11:04:07,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58329057] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:07,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:07,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 11:04:07,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915567179] [2022-01-18 11:04:07,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:07,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 11:04:07,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:07,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 11:04:07,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 11:04:07,481 INFO L87 Difference]: Start difference. First operand 8997 states and 25050 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:07,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:07,673 INFO L93 Difference]: Finished difference Result 9473 states and 26239 transitions. [2022-01-18 11:04:07,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 11:04:07,674 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-18 11:04:07,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:07,687 INFO L225 Difference]: With dead ends: 9473 [2022-01-18 11:04:07,688 INFO L226 Difference]: Without dead ends: 8939 [2022-01-18 11:04:07,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-01-18 11:04:07,688 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 83 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:07,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 1237 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:04:07,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8939 states. [2022-01-18 11:04:07,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8939 to 8939. [2022-01-18 11:04:07,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8939 states, 8938 states have (on average 2.7879838890132023) internal successors, (24919), 8938 states have internal predecessors, (24919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:07,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8939 states to 8939 states and 24919 transitions. [2022-01-18 11:04:07,797 INFO L78 Accepts]: Start accepts. Automaton has 8939 states and 24919 transitions. Word has length 101 [2022-01-18 11:04:07,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:07,798 INFO L470 AbstractCegarLoop]: Abstraction has 8939 states and 24919 transitions. [2022-01-18 11:04:07,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:07,798 INFO L276 IsEmpty]: Start isEmpty. Operand 8939 states and 24919 transitions. [2022-01-18 11:04:07,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:07,808 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:07,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:07,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 11:04:07,809 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:07,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:07,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1425192312, now seen corresponding path program 1 times [2022-01-18 11:04:07,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:07,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453106269] [2022-01-18 11:04:07,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:07,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:07,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:07,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:07,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453106269] [2022-01-18 11:04:07,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453106269] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:07,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:07,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:07,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351090695] [2022-01-18 11:04:07,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:07,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:07,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:07,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:07,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:07,931 INFO L87 Difference]: Start difference. First operand 8939 states and 24919 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:08,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:08,609 INFO L93 Difference]: Finished difference Result 14618 states and 40107 transitions. [2022-01-18 11:04:08,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:04:08,610 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:08,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:08,630 INFO L225 Difference]: With dead ends: 14618 [2022-01-18 11:04:08,630 INFO L226 Difference]: Without dead ends: 13655 [2022-01-18 11:04:08,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=492, Invalid=1400, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:04:08,631 INFO L933 BasicCegarLoop]: 605 mSDtfsCounter, 797 mSDsluCounter, 5077 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 5599 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:08,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [797 Valid, 5599 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:08,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13655 states. [2022-01-18 11:04:08,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13655 to 9479. [2022-01-18 11:04:08,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9479 states, 9478 states have (on average 2.785503270732222) internal successors, (26401), 9478 states have internal predecessors, (26401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:08,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9479 states to 9479 states and 26401 transitions. [2022-01-18 11:04:08,774 INFO L78 Accepts]: Start accepts. Automaton has 9479 states and 26401 transitions. Word has length 109 [2022-01-18 11:04:08,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:08,775 INFO L470 AbstractCegarLoop]: Abstraction has 9479 states and 26401 transitions. [2022-01-18 11:04:08,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:08,775 INFO L276 IsEmpty]: Start isEmpty. Operand 9479 states and 26401 transitions. [2022-01-18 11:04:08,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:08,789 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:08,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:08,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 11:04:08,789 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:08,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:08,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1923529448, now seen corresponding path program 1 times [2022-01-18 11:04:08,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:08,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240099819] [2022-01-18 11:04:08,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:08,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:08,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:08,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:08,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240099819] [2022-01-18 11:04:08,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240099819] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:08,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:08,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 11:04:08,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277924706] [2022-01-18 11:04:08,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:08,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 11:04:08,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:08,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 11:04:08,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:04:08,813 INFO L87 Difference]: Start difference. First operand 9479 states and 26401 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:08,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:08,864 INFO L93 Difference]: Finished difference Result 13726 states and 37493 transitions. [2022-01-18 11:04:08,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 11:04:08,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:08,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:08,883 INFO L225 Difference]: With dead ends: 13726 [2022-01-18 11:04:08,883 INFO L226 Difference]: Without dead ends: 13663 [2022-01-18 11:04:08,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:04:08,884 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 104 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:08,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 380 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:04:08,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13663 states. [2022-01-18 11:04:09,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13663 to 9937. [2022-01-18 11:04:09,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9937 states, 9936 states have (on average 2.763184380032206) internal successors, (27455), 9936 states have internal predecessors, (27455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:09,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9937 states to 9937 states and 27455 transitions. [2022-01-18 11:04:09,034 INFO L78 Accepts]: Start accepts. Automaton has 9937 states and 27455 transitions. Word has length 109 [2022-01-18 11:04:09,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:09,034 INFO L470 AbstractCegarLoop]: Abstraction has 9937 states and 27455 transitions. [2022-01-18 11:04:09,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:09,034 INFO L276 IsEmpty]: Start isEmpty. Operand 9937 states and 27455 transitions. [2022-01-18 11:04:09,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:09,046 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:09,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:09,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 11:04:09,046 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:09,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:09,047 INFO L85 PathProgramCache]: Analyzing trace with hash 356410200, now seen corresponding path program 1 times [2022-01-18 11:04:09,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:09,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690150375] [2022-01-18 11:04:09,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:09,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:09,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:09,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:09,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:09,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690150375] [2022-01-18 11:04:09,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690150375] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:09,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:09,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 11:04:09,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182639283] [2022-01-18 11:04:09,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:09,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 11:04:09,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:09,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 11:04:09,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:04:09,066 INFO L87 Difference]: Start difference. First operand 9937 states and 27455 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:09,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:09,129 INFO L93 Difference]: Finished difference Result 14235 states and 38677 transitions. [2022-01-18 11:04:09,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 11:04:09,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:09,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:09,156 INFO L225 Difference]: With dead ends: 14235 [2022-01-18 11:04:09,157 INFO L226 Difference]: Without dead ends: 13712 [2022-01-18 11:04:09,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:04:09,157 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 108 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:09,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 380 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:04:09,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13712 states. [2022-01-18 11:04:09,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13712 to 9931. [2022-01-18 11:04:09,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9931 states, 9930 states have (on average 2.7618328298086605) internal successors, (27425), 9930 states have internal predecessors, (27425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9931 states to 9931 states and 27425 transitions. [2022-01-18 11:04:09,324 INFO L78 Accepts]: Start accepts. Automaton has 9931 states and 27425 transitions. Word has length 109 [2022-01-18 11:04:09,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:09,325 INFO L470 AbstractCegarLoop]: Abstraction has 9931 states and 27425 transitions. [2022-01-18 11:04:09,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:09,325 INFO L276 IsEmpty]: Start isEmpty. Operand 9931 states and 27425 transitions. [2022-01-18 11:04:09,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:09,336 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:09,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:09,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-18 11:04:09,337 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:09,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:09,337 INFO L85 PathProgramCache]: Analyzing trace with hash -958186088, now seen corresponding path program 1 times [2022-01-18 11:04:09,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:09,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312852886] [2022-01-18 11:04:09,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:09,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:09,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:09,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:09,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312852886] [2022-01-18 11:04:09,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312852886] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:09,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:09,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 11:04:09,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108325011] [2022-01-18 11:04:09,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:09,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 11:04:09,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:09,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 11:04:09,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:04:09,357 INFO L87 Difference]: Start difference. First operand 9931 states and 27425 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:09,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:09,400 INFO L93 Difference]: Finished difference Result 10120 states and 27148 transitions. [2022-01-18 11:04:09,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 11:04:09,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:09,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:09,413 INFO L225 Difference]: With dead ends: 10120 [2022-01-18 11:04:09,414 INFO L226 Difference]: Without dead ends: 10120 [2022-01-18 11:04:09,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:04:09,414 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 119 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:09,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 280 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:04:09,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10120 states. [2022-01-18 11:04:09,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10120 to 9280. [2022-01-18 11:04:09,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9280 states, 9279 states have (on average 2.6963034809785538) internal successors, (25019), 9279 states have internal predecessors, (25019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:09,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9280 states to 9280 states and 25019 transitions. [2022-01-18 11:04:09,532 INFO L78 Accepts]: Start accepts. Automaton has 9280 states and 25019 transitions. Word has length 109 [2022-01-18 11:04:09,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:09,532 INFO L470 AbstractCegarLoop]: Abstraction has 9280 states and 25019 transitions. [2022-01-18 11:04:09,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:09,532 INFO L276 IsEmpty]: Start isEmpty. Operand 9280 states and 25019 transitions. [2022-01-18 11:04:09,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:09,543 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:09,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:09,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-18 11:04:09,543 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:09,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:09,544 INFO L85 PathProgramCache]: Analyzing trace with hash -2026968200, now seen corresponding path program 1 times [2022-01-18 11:04:09,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:09,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197215465] [2022-01-18 11:04:09,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:09,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:09,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:09,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:09,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197215465] [2022-01-18 11:04:09,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197215465] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:09,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:09,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:09,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988901910] [2022-01-18 11:04:09,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:09,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:09,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:09,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:09,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:09,679 INFO L87 Difference]: Start difference. First operand 9280 states and 25019 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:10,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:10,651 INFO L93 Difference]: Finished difference Result 12057 states and 32171 transitions. [2022-01-18 11:04:10,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 11:04:10,651 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:10,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:10,671 INFO L225 Difference]: With dead ends: 12057 [2022-01-18 11:04:10,671 INFO L226 Difference]: Without dead ends: 11168 [2022-01-18 11:04:10,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1334 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1028, Invalid=3394, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:04:10,673 INFO L933 BasicCegarLoop]: 468 mSDtfsCounter, 763 mSDsluCounter, 3435 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 3805 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:10,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [763 Valid, 3805 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:10,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11168 states. [2022-01-18 11:04:10,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11168 to 9060. [2022-01-18 11:04:10,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9060 states, 9059 states have (on average 2.7005188210619275) internal successors, (24464), 9059 states have internal predecessors, (24464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:10,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9060 states to 9060 states and 24464 transitions. [2022-01-18 11:04:10,820 INFO L78 Accepts]: Start accepts. Automaton has 9060 states and 24464 transitions. Word has length 109 [2022-01-18 11:04:10,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:10,820 INFO L470 AbstractCegarLoop]: Abstraction has 9060 states and 24464 transitions. [2022-01-18 11:04:10,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:10,821 INFO L276 IsEmpty]: Start isEmpty. Operand 9060 states and 24464 transitions. [2022-01-18 11:04:10,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:10,831 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:10,831 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:10,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-18 11:04:10,831 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:10,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:10,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1022754920, now seen corresponding path program 2 times [2022-01-18 11:04:10,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:10,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755276650] [2022-01-18 11:04:10,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:10,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:10,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:10,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:10,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755276650] [2022-01-18 11:04:10,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755276650] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:10,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:10,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:10,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531124699] [2022-01-18 11:04:10,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:10,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:10,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:10,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:10,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:10,968 INFO L87 Difference]: Start difference. First operand 9060 states and 24464 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:11,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:11,772 INFO L93 Difference]: Finished difference Result 11337 states and 30482 transitions. [2022-01-18 11:04:11,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 11:04:11,772 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:11,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:11,788 INFO L225 Difference]: With dead ends: 11337 [2022-01-18 11:04:11,788 INFO L226 Difference]: Without dead ends: 10723 [2022-01-18 11:04:11,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1144 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=850, Invalid=3056, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 11:04:11,789 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 509 mSDsluCounter, 4513 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 4849 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:11,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [509 Valid, 4849 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:11,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10723 states. [2022-01-18 11:04:11,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10723 to 9064. [2022-01-18 11:04:11,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9064 states, 9063 states have (on average 2.7000993048659385) internal successors, (24471), 9063 states have internal predecessors, (24471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:11,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9064 states to 9064 states and 24471 transitions. [2022-01-18 11:04:11,920 INFO L78 Accepts]: Start accepts. Automaton has 9064 states and 24471 transitions. Word has length 109 [2022-01-18 11:04:11,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:11,921 INFO L470 AbstractCegarLoop]: Abstraction has 9064 states and 24471 transitions. [2022-01-18 11:04:11,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:11,921 INFO L276 IsEmpty]: Start isEmpty. Operand 9064 states and 24471 transitions. [2022-01-18 11:04:11,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:11,931 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:11,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:11,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-18 11:04:11,931 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:11,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:11,932 INFO L85 PathProgramCache]: Analyzing trace with hash -2080051074, now seen corresponding path program 3 times [2022-01-18 11:04:11,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:11,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774845775] [2022-01-18 11:04:11,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:11,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:12,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:12,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:12,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774845775] [2022-01-18 11:04:12,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774845775] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:12,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:12,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:12,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322983217] [2022-01-18 11:04:12,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:12,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:12,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:12,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:12,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:12,072 INFO L87 Difference]: Start difference. First operand 9064 states and 24471 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:12,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:12,685 INFO L93 Difference]: Finished difference Result 11173 states and 30052 transitions. [2022-01-18 11:04:12,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:04:12,685 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:12,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:12,700 INFO L225 Difference]: With dead ends: 11173 [2022-01-18 11:04:12,700 INFO L226 Difference]: Without dead ends: 10602 [2022-01-18 11:04:12,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=623, Invalid=2347, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:04:12,701 INFO L933 BasicCegarLoop]: 429 mSDtfsCounter, 436 mSDsluCounter, 3710 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 4055 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:12,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [436 Valid, 4055 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:12,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10602 states. [2022-01-18 11:04:12,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10602 to 9068. [2022-01-18 11:04:12,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9068 states, 9067 states have (on average 2.6996801588176904) internal successors, (24478), 9067 states have internal predecessors, (24478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:12,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9068 states to 9068 states and 24478 transitions. [2022-01-18 11:04:12,820 INFO L78 Accepts]: Start accepts. Automaton has 9068 states and 24478 transitions. Word has length 109 [2022-01-18 11:04:12,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:12,821 INFO L470 AbstractCegarLoop]: Abstraction has 9068 states and 24478 transitions. [2022-01-18 11:04:12,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:12,821 INFO L276 IsEmpty]: Start isEmpty. Operand 9068 states and 24478 transitions. [2022-01-18 11:04:12,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:12,831 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:12,831 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:12,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-18 11:04:12,831 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:12,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:12,831 INFO L85 PathProgramCache]: Analyzing trace with hash -290488620, now seen corresponding path program 4 times [2022-01-18 11:04:12,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:12,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761584947] [2022-01-18 11:04:12,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:12,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:12,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:12,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:12,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761584947] [2022-01-18 11:04:12,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761584947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:12,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:12,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:12,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900293052] [2022-01-18 11:04:12,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:12,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:12,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:12,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:12,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:12,956 INFO L87 Difference]: Start difference. First operand 9068 states and 24478 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:13,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:13,557 INFO L93 Difference]: Finished difference Result 11048 states and 29723 transitions. [2022-01-18 11:04:13,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:04:13,557 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:13,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:13,579 INFO L225 Difference]: With dead ends: 11048 [2022-01-18 11:04:13,579 INFO L226 Difference]: Without dead ends: 10520 [2022-01-18 11:04:13,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=446, Invalid=1716, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:04:13,580 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 364 mSDsluCounter, 4311 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 4642 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:13,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 4642 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:13,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10520 states. [2022-01-18 11:04:13,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10520 to 9072. [2022-01-18 11:04:13,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9072 states, 9071 states have (on average 2.6992613824275162) internal successors, (24485), 9071 states have internal predecessors, (24485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:13,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9072 states to 9072 states and 24485 transitions. [2022-01-18 11:04:13,697 INFO L78 Accepts]: Start accepts. Automaton has 9072 states and 24485 transitions. Word has length 109 [2022-01-18 11:04:13,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:13,697 INFO L470 AbstractCegarLoop]: Abstraction has 9072 states and 24485 transitions. [2022-01-18 11:04:13,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:13,697 INFO L276 IsEmpty]: Start isEmpty. Operand 9072 states and 24485 transitions. [2022-01-18 11:04:13,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:13,707 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:13,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:13,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-18 11:04:13,707 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:13,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:13,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1496446334, now seen corresponding path program 5 times [2022-01-18 11:04:13,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:13,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928459603] [2022-01-18 11:04:13,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:13,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:13,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:13,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:13,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928459603] [2022-01-18 11:04:13,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928459603] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:13,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:13,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:13,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024686542] [2022-01-18 11:04:13,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:13,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:13,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:13,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:13,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:13,878 INFO L87 Difference]: Start difference. First operand 9072 states and 24485 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:14,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:14,316 INFO L93 Difference]: Finished difference Result 10884 states and 29293 transitions. [2022-01-18 11:04:14,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:04:14,317 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:14,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:14,330 INFO L225 Difference]: With dead ends: 10884 [2022-01-18 11:04:14,330 INFO L226 Difference]: Without dead ends: 10399 [2022-01-18 11:04:14,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=319, Invalid=1163, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:04:14,331 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 312 mSDsluCounter, 3205 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 3547 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:14,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 3547 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:14,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10399 states. [2022-01-18 11:04:14,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10399 to 9076. [2022-01-18 11:04:14,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9076 states, 9075 states have (on average 2.6988429752066114) internal successors, (24492), 9075 states have internal predecessors, (24492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:14,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9076 states to 9076 states and 24492 transitions. [2022-01-18 11:04:14,448 INFO L78 Accepts]: Start accepts. Automaton has 9076 states and 24492 transitions. Word has length 109 [2022-01-18 11:04:14,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:14,449 INFO L470 AbstractCegarLoop]: Abstraction has 9076 states and 24492 transitions. [2022-01-18 11:04:14,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:14,449 INFO L276 IsEmpty]: Start isEmpty. Operand 9076 states and 24492 transitions. [2022-01-18 11:04:14,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:14,459 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:14,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:14,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-18 11:04:14,460 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:14,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:14,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2116900308, now seen corresponding path program 6 times [2022-01-18 11:04:14,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:14,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524094915] [2022-01-18 11:04:14,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:14,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:14,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:14,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:14,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524094915] [2022-01-18 11:04:14,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524094915] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:14,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:14,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:14,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131547967] [2022-01-18 11:04:14,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:14,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:14,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:14,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:14,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:14,586 INFO L87 Difference]: Start difference. First operand 9076 states and 24492 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:15,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:15,038 INFO L93 Difference]: Finished difference Result 10794 states and 29050 transitions. [2022-01-18 11:04:15,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 11:04:15,039 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:15,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:15,052 INFO L225 Difference]: With dead ends: 10794 [2022-01-18 11:04:15,053 INFO L226 Difference]: Without dead ends: 10270 [2022-01-18 11:04:15,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=934, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:04:15,053 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 295 mSDsluCounter, 3423 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 3759 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:15,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 3759 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:15,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10270 states. [2022-01-18 11:04:15,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10270 to 9034. [2022-01-18 11:04:15,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9034 states, 9033 states have (on average 2.7008745710173807) internal successors, (24397), 9033 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:15,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9034 states to 9034 states and 24397 transitions. [2022-01-18 11:04:15,169 INFO L78 Accepts]: Start accepts. Automaton has 9034 states and 24397 transitions. Word has length 109 [2022-01-18 11:04:15,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:15,170 INFO L470 AbstractCegarLoop]: Abstraction has 9034 states and 24397 transitions. [2022-01-18 11:04:15,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:15,170 INFO L276 IsEmpty]: Start isEmpty. Operand 9034 states and 24397 transitions. [2022-01-18 11:04:15,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:15,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:15,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:15,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-18 11:04:15,180 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:15,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:15,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1522439320, now seen corresponding path program 7 times [2022-01-18 11:04:15,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:15,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736635825] [2022-01-18 11:04:15,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:15,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:15,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:15,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:15,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736635825] [2022-01-18 11:04:15,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736635825] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:15,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:15,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:15,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708413016] [2022-01-18 11:04:15,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:15,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:15,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:15,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:15,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:15,309 INFO L87 Difference]: Start difference. First operand 9034 states and 24397 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:15,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:15,775 INFO L93 Difference]: Finished difference Result 11006 states and 29645 transitions. [2022-01-18 11:04:15,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:04:15,775 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:15,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:15,789 INFO L225 Difference]: With dead ends: 11006 [2022-01-18 11:04:15,789 INFO L226 Difference]: Without dead ends: 10521 [2022-01-18 11:04:15,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=1091, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:04:15,790 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 270 mSDsluCounter, 3887 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 4193 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:15,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 4193 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:15,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10521 states. [2022-01-18 11:04:15,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10521 to 9054. [2022-01-18 11:04:15,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 2.7005412570418645) internal successors, (24448), 9053 states have internal predecessors, (24448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:15,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24448 transitions. [2022-01-18 11:04:15,907 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24448 transitions. Word has length 109 [2022-01-18 11:04:15,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:15,907 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24448 transitions. [2022-01-18 11:04:15,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:15,907 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24448 transitions. [2022-01-18 11:04:15,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:15,917 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:15,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:15,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-18 11:04:15,918 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:15,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:15,918 INFO L85 PathProgramCache]: Analyzing trace with hash -840818666, now seen corresponding path program 8 times [2022-01-18 11:04:15,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:15,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277766235] [2022-01-18 11:04:15,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:15,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:16,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:16,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:16,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277766235] [2022-01-18 11:04:16,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277766235] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:16,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:16,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:16,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026123028] [2022-01-18 11:04:16,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:16,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:16,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:16,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:16,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:16,047 INFO L87 Difference]: Start difference. First operand 9054 states and 24448 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:16,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:16,526 INFO L93 Difference]: Finished difference Result 10964 states and 29534 transitions. [2022-01-18 11:04:16,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:04:16,527 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:16,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:16,541 INFO L225 Difference]: With dead ends: 10964 [2022-01-18 11:04:16,541 INFO L226 Difference]: Without dead ends: 10478 [2022-01-18 11:04:16,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=389, Invalid=1171, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 11:04:16,542 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 260 mSDsluCounter, 3047 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 3371 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:16,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 3371 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:16,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10478 states. [2022-01-18 11:04:16,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10478 to 9050. [2022-01-18 11:04:16,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9050 states, 9049 states have (on average 2.700519394408222) internal successors, (24437), 9049 states have internal predecessors, (24437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:16,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24437 transitions. [2022-01-18 11:04:16,658 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24437 transitions. Word has length 109 [2022-01-18 11:04:16,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:16,658 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24437 transitions. [2022-01-18 11:04:16,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:16,659 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24437 transitions. [2022-01-18 11:04:16,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:16,668 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:16,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:16,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-18 11:04:16,669 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:16,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:16,669 INFO L85 PathProgramCache]: Analyzing trace with hash -140131110, now seen corresponding path program 9 times [2022-01-18 11:04:16,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:16,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064281366] [2022-01-18 11:04:16,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:16,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:16,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:16,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:16,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064281366] [2022-01-18 11:04:16,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064281366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:16,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:16,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:16,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559876885] [2022-01-18 11:04:16,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:16,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:16,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:16,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:16,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:16,815 INFO L87 Difference]: Start difference. First operand 9050 states and 24437 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:17,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:17,383 INFO L93 Difference]: Finished difference Result 11032 states and 29701 transitions. [2022-01-18 11:04:17,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:04:17,383 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:17,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:17,402 INFO L225 Difference]: With dead ends: 11032 [2022-01-18 11:04:17,403 INFO L226 Difference]: Without dead ends: 10506 [2022-01-18 11:04:17,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=497, Invalid=1309, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 11:04:17,403 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 325 mSDsluCounter, 2913 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 3239 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:17,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 3239 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:17,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10506 states. [2022-01-18 11:04:17,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10506 to 9046. [2022-01-18 11:04:17,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9046 states, 9045 states have (on average 2.7004975124378108) internal successors, (24426), 9045 states have internal predecessors, (24426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:17,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9046 states to 9046 states and 24426 transitions. [2022-01-18 11:04:17,559 INFO L78 Accepts]: Start accepts. Automaton has 9046 states and 24426 transitions. Word has length 109 [2022-01-18 11:04:17,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:17,559 INFO L470 AbstractCegarLoop]: Abstraction has 9046 states and 24426 transitions. [2022-01-18 11:04:17,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:17,559 INFO L276 IsEmpty]: Start isEmpty. Operand 9046 states and 24426 transitions. [2022-01-18 11:04:17,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:17,569 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:17,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:17,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-18 11:04:17,570 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:17,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:17,570 INFO L85 PathProgramCache]: Analyzing trace with hash 937556918, now seen corresponding path program 10 times [2022-01-18 11:04:17,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:17,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582283850] [2022-01-18 11:04:17,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:17,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:17,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:17,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:17,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582283850] [2022-01-18 11:04:17,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582283850] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:17,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:17,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:17,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222928165] [2022-01-18 11:04:17,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:17,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:17,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:17,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:17,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:17,711 INFO L87 Difference]: Start difference. First operand 9046 states and 24426 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:18,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:18,280 INFO L93 Difference]: Finished difference Result 11162 states and 30045 transitions. [2022-01-18 11:04:18,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:04:18,280 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:18,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:18,294 INFO L225 Difference]: With dead ends: 11162 [2022-01-18 11:04:18,294 INFO L226 Difference]: Without dead ends: 10634 [2022-01-18 11:04:18,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=450, Invalid=1530, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:04:18,295 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 344 mSDsluCounter, 3679 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 3997 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:18,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 3997 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:18,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10634 states. [2022-01-18 11:04:18,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10634 to 9050. [2022-01-18 11:04:18,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9050 states, 9049 states have (on average 2.7000773566139906) internal successors, (24433), 9049 states have internal predecessors, (24433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:18,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24433 transitions. [2022-01-18 11:04:18,412 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24433 transitions. Word has length 109 [2022-01-18 11:04:18,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:18,412 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24433 transitions. [2022-01-18 11:04:18,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:18,412 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24433 transitions. [2022-01-18 11:04:18,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:18,422 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:18,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:18,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-18 11:04:18,422 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:18,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:18,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1570475424, now seen corresponding path program 11 times [2022-01-18 11:04:18,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:18,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182294578] [2022-01-18 11:04:18,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:18,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:18,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:18,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:18,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182294578] [2022-01-18 11:04:18,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182294578] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:18,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:18,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:18,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601887772] [2022-01-18 11:04:18,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:18,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:18,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:18,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:18,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:18,548 INFO L87 Difference]: Start difference. First operand 9050 states and 24433 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:19,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:19,029 INFO L93 Difference]: Finished difference Result 10998 states and 29615 transitions. [2022-01-18 11:04:19,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:04:19,029 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:19,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:19,059 INFO L225 Difference]: With dead ends: 10998 [2022-01-18 11:04:19,060 INFO L226 Difference]: Without dead ends: 10513 [2022-01-18 11:04:19,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:04:19,060 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 284 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:19,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 3688 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:19,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10513 states. [2022-01-18 11:04:19,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10513 to 9054. [2022-01-18 11:04:19,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 2.699657572075555) internal successors, (24440), 9053 states have internal predecessors, (24440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:19,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24440 transitions. [2022-01-18 11:04:19,252 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24440 transitions. Word has length 109 [2022-01-18 11:04:19,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:19,252 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24440 transitions. [2022-01-18 11:04:19,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:19,253 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24440 transitions. [2022-01-18 11:04:19,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:19,267 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:19,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:19,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-18 11:04:19,267 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:19,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:19,268 INFO L85 PathProgramCache]: Analyzing trace with hash -888854770, now seen corresponding path program 12 times [2022-01-18 11:04:19,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:19,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72243442] [2022-01-18 11:04:19,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:19,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:19,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:19,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:19,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72243442] [2022-01-18 11:04:19,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72243442] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:19,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:19,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:19,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999517543] [2022-01-18 11:04:19,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:19,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:19,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:19,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:19,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:19,423 INFO L87 Difference]: Start difference. First operand 9054 states and 24440 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:19,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:19,999 INFO L93 Difference]: Finished difference Result 10932 states and 29438 transitions. [2022-01-18 11:04:20,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:04:20,000 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:20,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:20,027 INFO L225 Difference]: With dead ends: 10932 [2022-01-18 11:04:20,028 INFO L226 Difference]: Without dead ends: 10438 [2022-01-18 11:04:20,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:04:20,028 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 269 mSDsluCounter, 3829 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 4142 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:20,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 4142 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:20,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10438 states. [2022-01-18 11:04:20,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10438 to 9042. [2022-01-18 11:04:20,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9042 states, 9041 states have (on average 2.700475611104966) internal successors, (24415), 9041 states have internal predecessors, (24415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:20,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9042 states to 9042 states and 24415 transitions. [2022-01-18 11:04:20,188 INFO L78 Accepts]: Start accepts. Automaton has 9042 states and 24415 transitions. Word has length 109 [2022-01-18 11:04:20,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:20,188 INFO L470 AbstractCegarLoop]: Abstraction has 9042 states and 24415 transitions. [2022-01-18 11:04:20,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:20,188 INFO L276 IsEmpty]: Start isEmpty. Operand 9042 states and 24415 transitions. [2022-01-18 11:04:20,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:20,198 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:20,199 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:20,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-18 11:04:20,199 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:20,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:20,199 INFO L85 PathProgramCache]: Analyzing trace with hash -565920918, now seen corresponding path program 13 times [2022-01-18 11:04:20,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:20,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580275721] [2022-01-18 11:04:20,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:20,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:20,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:20,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:20,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580275721] [2022-01-18 11:04:20,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580275721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:20,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:20,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:20,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557998169] [2022-01-18 11:04:20,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:20,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:20,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:20,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:20,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:20,343 INFO L87 Difference]: Start difference. First operand 9042 states and 24415 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:21,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:21,013 INFO L93 Difference]: Finished difference Result 11295 states and 30392 transitions. [2022-01-18 11:04:21,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:04:21,014 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:21,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:21,041 INFO L225 Difference]: With dead ends: 11295 [2022-01-18 11:04:21,041 INFO L226 Difference]: Without dead ends: 10724 [2022-01-18 11:04:21,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:04:21,042 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 408 mSDsluCounter, 3525 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 3846 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:21,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 3846 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:21,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10724 states. [2022-01-18 11:04:21,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10724 to 9046. [2022-01-18 11:04:21,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9046 states, 9045 states have (on average 2.700055279159757) internal successors, (24422), 9045 states have internal predecessors, (24422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:21,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9046 states to 9046 states and 24422 transitions. [2022-01-18 11:04:21,210 INFO L78 Accepts]: Start accepts. Automaton has 9046 states and 24422 transitions. Word has length 109 [2022-01-18 11:04:21,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:21,210 INFO L470 AbstractCegarLoop]: Abstraction has 9046 states and 24422 transitions. [2022-01-18 11:04:21,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:21,211 INFO L276 IsEmpty]: Start isEmpty. Operand 9046 states and 24422 transitions. [2022-01-18 11:04:21,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:21,224 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:21,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:21,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-18 11:04:21,225 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:21,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:21,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1223641536, now seen corresponding path program 14 times [2022-01-18 11:04:21,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:21,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899383127] [2022-01-18 11:04:21,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:21,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:21,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:21,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:21,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899383127] [2022-01-18 11:04:21,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899383127] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:21,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:21,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:21,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615652753] [2022-01-18 11:04:21,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:21,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:21,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:21,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:21,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:21,362 INFO L87 Difference]: Start difference. First operand 9046 states and 24422 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:21,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:21,949 INFO L93 Difference]: Finished difference Result 11170 states and 30063 transitions. [2022-01-18 11:04:21,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:04:21,949 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:21,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:21,974 INFO L225 Difference]: With dead ends: 11170 [2022-01-18 11:04:21,975 INFO L226 Difference]: Without dead ends: 10642 [2022-01-18 11:04:21,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=465, Invalid=1697, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:04:21,976 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 342 mSDsluCounter, 3745 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 4061 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:21,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 4061 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:21,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10642 states. [2022-01-18 11:04:22,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10642 to 9050. [2022-01-18 11:04:22,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9050 states, 9049 states have (on average 2.6996353188197593) internal successors, (24429), 9049 states have internal predecessors, (24429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:22,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24429 transitions. [2022-01-18 11:04:22,146 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24429 transitions. Word has length 109 [2022-01-18 11:04:22,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:22,146 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24429 transitions. [2022-01-18 11:04:22,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:22,146 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24429 transitions. [2022-01-18 11:04:22,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:22,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:22,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:22,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-18 11:04:22,160 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:22,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:22,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1284390806, now seen corresponding path program 15 times [2022-01-18 11:04:22,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:22,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863221246] [2022-01-18 11:04:22,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:22,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:22,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:22,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:22,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863221246] [2022-01-18 11:04:22,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863221246] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:22,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:22,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:22,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859339160] [2022-01-18 11:04:22,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:22,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:22,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:22,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:22,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:22,308 INFO L87 Difference]: Start difference. First operand 9050 states and 24429 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:22,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:22,798 INFO L93 Difference]: Finished difference Result 11006 states and 29633 transitions. [2022-01-18 11:04:22,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:04:22,798 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:22,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:22,811 INFO L225 Difference]: With dead ends: 11006 [2022-01-18 11:04:22,811 INFO L226 Difference]: Without dead ends: 10521 [2022-01-18 11:04:22,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:04:22,811 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 280 mSDsluCounter, 3019 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3344 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:22,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 3344 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:22,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10521 states. [2022-01-18 11:04:22,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10521 to 9054. [2022-01-18 11:04:22,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 2.6992157295924004) internal successors, (24436), 9053 states have internal predecessors, (24436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:22,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24436 transitions. [2022-01-18 11:04:22,927 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24436 transitions. Word has length 109 [2022-01-18 11:04:22,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:22,927 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24436 transitions. [2022-01-18 11:04:22,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:22,928 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24436 transitions. [2022-01-18 11:04:22,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:22,938 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:22,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:22,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-18 11:04:22,938 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:22,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:22,939 INFO L85 PathProgramCache]: Analyzing trace with hash -602770152, now seen corresponding path program 16 times [2022-01-18 11:04:22,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:22,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262869401] [2022-01-18 11:04:22,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:22,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:23,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:23,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:23,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262869401] [2022-01-18 11:04:23,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262869401] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:23,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:23,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:23,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446553164] [2022-01-18 11:04:23,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:23,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:23,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:23,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:23,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:23,069 INFO L87 Difference]: Start difference. First operand 9054 states and 24436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:23,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:23,613 INFO L93 Difference]: Finished difference Result 10932 states and 29434 transitions. [2022-01-18 11:04:23,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:04:23,613 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:23,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:23,627 INFO L225 Difference]: With dead ends: 10932 [2022-01-18 11:04:23,628 INFO L226 Difference]: Without dead ends: 10434 [2022-01-18 11:04:23,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:04:23,628 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 267 mSDsluCounter, 3822 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 4132 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:23,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 4132 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:23,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10434 states. [2022-01-18 11:04:23,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10434 to 9038. [2022-01-18 11:04:23,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9038 states, 9037 states have (on average 2.700453690383977) internal successors, (24404), 9037 states have internal predecessors, (24404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:23,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9038 states to 9038 states and 24404 transitions. [2022-01-18 11:04:23,747 INFO L78 Accepts]: Start accepts. Automaton has 9038 states and 24404 transitions. Word has length 109 [2022-01-18 11:04:23,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:23,747 INFO L470 AbstractCegarLoop]: Abstraction has 9038 states and 24404 transitions. [2022-01-18 11:04:23,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:23,748 INFO L276 IsEmpty]: Start isEmpty. Operand 9038 states and 24404 transitions. [2022-01-18 11:04:23,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:23,758 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:23,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:23,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-18 11:04:23,758 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:23,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:23,759 INFO L85 PathProgramCache]: Analyzing trace with hash 71721492, now seen corresponding path program 17 times [2022-01-18 11:04:23,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:23,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340892125] [2022-01-18 11:04:23,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:23,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:23,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:23,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:23,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340892125] [2022-01-18 11:04:23,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340892125] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:23,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:23,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:23,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153602396] [2022-01-18 11:04:23,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:23,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:23,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:23,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:23,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:23,874 INFO L87 Difference]: Start difference. First operand 9038 states and 24404 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:24,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:24,637 INFO L93 Difference]: Finished difference Result 11315 states and 30422 transitions. [2022-01-18 11:04:24,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:04:24,637 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:24,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:24,652 INFO L225 Difference]: With dead ends: 11315 [2022-01-18 11:04:24,652 INFO L226 Difference]: Without dead ends: 10701 [2022-01-18 11:04:24,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1082 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=849, Invalid=2933, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:04:24,653 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 489 mSDsluCounter, 4198 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 4507 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:24,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 4507 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:24,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2022-01-18 11:04:24,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 9042. [2022-01-18 11:04:24,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9042 states, 9041 states have (on average 2.700033182170114) internal successors, (24411), 9041 states have internal predecessors, (24411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:24,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9042 states to 9042 states and 24411 transitions. [2022-01-18 11:04:24,773 INFO L78 Accepts]: Start accepts. Automaton has 9042 states and 24411 transitions. Word has length 109 [2022-01-18 11:04:24,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:24,773 INFO L470 AbstractCegarLoop]: Abstraction has 9042 states and 24411 transitions. [2022-01-18 11:04:24,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:24,773 INFO L276 IsEmpty]: Start isEmpty. Operand 9042 states and 24411 transitions. [2022-01-18 11:04:24,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:24,783 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:24,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:24,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-18 11:04:24,783 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:24,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:24,784 INFO L85 PathProgramCache]: Analyzing trace with hash -985574662, now seen corresponding path program 18 times [2022-01-18 11:04:24,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:24,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37864569] [2022-01-18 11:04:24,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:24,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:24,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:24,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:24,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37864569] [2022-01-18 11:04:24,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37864569] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:24,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:24,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:24,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270307236] [2022-01-18 11:04:24,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:24,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:24,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:24,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:24,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:24,922 INFO L87 Difference]: Start difference. First operand 9042 states and 24411 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:25,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:25,587 INFO L93 Difference]: Finished difference Result 11167 states and 30036 transitions. [2022-01-18 11:04:25,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:04:25,588 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:25,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:25,602 INFO L225 Difference]: With dead ends: 11167 [2022-01-18 11:04:25,602 INFO L226 Difference]: Without dead ends: 10596 [2022-01-18 11:04:25,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=637, Invalid=2333, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:04:25,603 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 413 mSDsluCounter, 4100 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 4406 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:25,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 4406 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:25,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10596 states. [2022-01-18 11:04:25,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10596 to 9046. [2022-01-18 11:04:25,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9046 states, 9045 states have (on average 2.6996130458817027) internal successors, (24418), 9045 states have internal predecessors, (24418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:25,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9046 states to 9046 states and 24418 transitions. [2022-01-18 11:04:25,720 INFO L78 Accepts]: Start accepts. Automaton has 9046 states and 24418 transitions. Word has length 109 [2022-01-18 11:04:25,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:25,720 INFO L470 AbstractCegarLoop]: Abstraction has 9046 states and 24418 transitions. [2022-01-18 11:04:25,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:25,720 INFO L276 IsEmpty]: Start isEmpty. Operand 9046 states and 24418 transitions. [2022-01-18 11:04:25,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:25,730 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:25,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:25,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-18 11:04:25,730 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:25,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:25,730 INFO L85 PathProgramCache]: Analyzing trace with hash 803987792, now seen corresponding path program 19 times [2022-01-18 11:04:25,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:25,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288408965] [2022-01-18 11:04:25,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:25,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:25,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:25,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:25,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288408965] [2022-01-18 11:04:25,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288408965] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:25,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:25,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:25,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885037889] [2022-01-18 11:04:25,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:25,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:25,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:25,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:25,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:25,868 INFO L87 Difference]: Start difference. First operand 9046 states and 24418 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:26,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:26,462 INFO L93 Difference]: Finished difference Result 11050 states and 29729 transitions. [2022-01-18 11:04:26,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:04:26,463 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:26,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:26,476 INFO L225 Difference]: With dead ends: 11050 [2022-01-18 11:04:26,477 INFO L226 Difference]: Without dead ends: 10522 [2022-01-18 11:04:26,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1708, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:04:26,477 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 350 mSDsluCounter, 3699 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 4008 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:26,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 4008 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:26,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10522 states. [2022-01-18 11:04:26,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10522 to 9050. [2022-01-18 11:04:26,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9050 states, 9049 states have (on average 2.6991932810255275) internal successors, (24425), 9049 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:26,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24425 transitions. [2022-01-18 11:04:26,594 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24425 transitions. Word has length 109 [2022-01-18 11:04:26,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:26,594 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24425 transitions. [2022-01-18 11:04:26,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:26,594 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24425 transitions. [2022-01-18 11:04:26,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:26,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:26,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:26,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-18 11:04:26,604 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:26,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:26,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1704044550, now seen corresponding path program 20 times [2022-01-18 11:04:26,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:26,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763644751] [2022-01-18 11:04:26,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:26,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:26,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:26,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:26,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763644751] [2022-01-18 11:04:26,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763644751] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:26,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:26,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:26,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526163606] [2022-01-18 11:04:26,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:26,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:26,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:26,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:26,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:26,739 INFO L87 Difference]: Start difference. First operand 9050 states and 24425 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:27,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:27,215 INFO L93 Difference]: Finished difference Result 10902 states and 29343 transitions. [2022-01-18 11:04:27,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:04:27,216 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:27,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:27,230 INFO L225 Difference]: With dead ends: 10902 [2022-01-18 11:04:27,230 INFO L226 Difference]: Without dead ends: 10417 [2022-01-18 11:04:27,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1161, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:04:27,231 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 291 mSDsluCounter, 3589 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 3896 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:27,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 3896 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:27,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10417 states. [2022-01-18 11:04:27,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10417 to 9054. [2022-01-18 11:04:27,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 2.6987738871092457) internal successors, (24432), 9053 states have internal predecessors, (24432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:27,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24432 transitions. [2022-01-18 11:04:27,347 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24432 transitions. Word has length 109 [2022-01-18 11:04:27,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:27,347 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24432 transitions. [2022-01-18 11:04:27,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:27,347 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24432 transitions. [2022-01-18 11:04:27,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:27,357 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:27,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:27,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-18 11:04:27,358 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:27,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:27,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1022423896, now seen corresponding path program 21 times [2022-01-18 11:04:27,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:27,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036344304] [2022-01-18 11:04:27,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:27,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:27,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:27,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:27,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036344304] [2022-01-18 11:04:27,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036344304] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:27,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:27,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:27,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208273461] [2022-01-18 11:04:27,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:27,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:27,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:27,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:27,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:27,502 INFO L87 Difference]: Start difference. First operand 9054 states and 24432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:27,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:27,938 INFO L93 Difference]: Finished difference Result 10772 states and 28990 transitions. [2022-01-18 11:04:27,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:04:27,939 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:27,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:27,953 INFO L225 Difference]: With dead ends: 10772 [2022-01-18 11:04:27,953 INFO L226 Difference]: Without dead ends: 10244 [2022-01-18 11:04:27,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=335, Invalid=997, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:04:27,954 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 267 mSDsluCounter, 3505 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 3811 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:27,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 3811 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:27,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10244 states. [2022-01-18 11:04:28,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10244 to 9008. [2022-01-18 11:04:28,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9008 states, 9007 states have (on average 2.701232374819585) internal successors, (24330), 9007 states have internal predecessors, (24330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:28,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9008 states to 9008 states and 24330 transitions. [2022-01-18 11:04:28,092 INFO L78 Accepts]: Start accepts. Automaton has 9008 states and 24330 transitions. Word has length 109 [2022-01-18 11:04:28,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:28,092 INFO L470 AbstractCegarLoop]: Abstraction has 9008 states and 24330 transitions. [2022-01-18 11:04:28,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:28,092 INFO L276 IsEmpty]: Start isEmpty. Operand 9008 states and 24330 transitions. [2022-01-18 11:04:28,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:28,103 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:28,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:28,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-18 11:04:28,103 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:28,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:28,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1360774976, now seen corresponding path program 22 times [2022-01-18 11:04:28,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:28,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033190488] [2022-01-18 11:04:28,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:28,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:28,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:28,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:28,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033190488] [2022-01-18 11:04:28,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033190488] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:28,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:28,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:28,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691823895] [2022-01-18 11:04:28,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:28,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:28,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:28,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:28,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:28,227 INFO L87 Difference]: Start difference. First operand 9008 states and 24330 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:28,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:28,687 INFO L93 Difference]: Finished difference Result 11068 states and 29820 transitions. [2022-01-18 11:04:28,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:04:28,688 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:28,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:28,702 INFO L225 Difference]: With dead ends: 11068 [2022-01-18 11:04:28,703 INFO L226 Difference]: Without dead ends: 10583 [2022-01-18 11:04:28,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:04:28,704 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 233 mSDsluCounter, 3552 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 3827 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:28,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 3827 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:28,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10583 states. [2022-01-18 11:04:28,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10583 to 9032. [2022-01-18 11:04:28,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.7009190565828813) internal successors, (24392), 9031 states have internal predecessors, (24392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:28,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24392 transitions. [2022-01-18 11:04:28,830 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24392 transitions. Word has length 109 [2022-01-18 11:04:28,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:28,830 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24392 transitions. [2022-01-18 11:04:28,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:28,830 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24392 transitions. [2022-01-18 11:04:28,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:28,841 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:28,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:28,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-18 11:04:28,841 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:28,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:28,842 INFO L85 PathProgramCache]: Analyzing trace with hash 2042395630, now seen corresponding path program 23 times [2022-01-18 11:04:28,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:28,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144348478] [2022-01-18 11:04:28,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:28,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:28,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:28,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:28,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144348478] [2022-01-18 11:04:28,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144348478] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:28,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:28,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:28,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841954583] [2022-01-18 11:04:28,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:28,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:28,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:28,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:28,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:28,977 INFO L87 Difference]: Start difference. First operand 9032 states and 24392 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:29,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:29,585 INFO L93 Difference]: Finished difference Result 11034 states and 29731 transitions. [2022-01-18 11:04:29,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:04:29,585 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:29,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:29,604 INFO L225 Difference]: With dead ends: 11034 [2022-01-18 11:04:29,604 INFO L226 Difference]: Without dead ends: 10548 [2022-01-18 11:04:29,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=369, Invalid=1191, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 11:04:29,604 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 230 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 3164 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:29,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 3164 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:29,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10548 states. [2022-01-18 11:04:29,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10548 to 9028. [2022-01-18 11:04:29,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7008973080757728) internal successors, (24381), 9027 states have internal predecessors, (24381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:29,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24381 transitions. [2022-01-18 11:04:29,722 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24381 transitions. Word has length 109 [2022-01-18 11:04:29,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:29,723 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24381 transitions. [2022-01-18 11:04:29,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:29,723 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24381 transitions. [2022-01-18 11:04:29,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:29,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:29,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:29,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-18 11:04:29,733 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:29,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:29,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1551884110, now seen corresponding path program 24 times [2022-01-18 11:04:29,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:29,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357780830] [2022-01-18 11:04:29,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:29,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:29,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:29,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:29,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:29,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357780830] [2022-01-18 11:04:29,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357780830] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:29,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:29,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:29,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28879179] [2022-01-18 11:04:29,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:29,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:29,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:29,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:29,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:29,872 INFO L87 Difference]: Start difference. First operand 9028 states and 24381 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:30,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:30,514 INFO L93 Difference]: Finished difference Result 11070 states and 29826 transitions. [2022-01-18 11:04:30,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:04:30,514 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:30,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:30,528 INFO L225 Difference]: With dead ends: 11070 [2022-01-18 11:04:30,529 INFO L226 Difference]: Without dead ends: 10544 [2022-01-18 11:04:30,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:04:30,529 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 278 mSDsluCounter, 3069 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 3369 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:30,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 3369 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:30,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10544 states. [2022-01-18 11:04:30,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10544 to 9024. [2022-01-18 11:04:30,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.700875540285936) internal successors, (24370), 9023 states have internal predecessors, (24370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:30,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24370 transitions. [2022-01-18 11:04:30,645 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24370 transitions. Word has length 109 [2022-01-18 11:04:30,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:30,646 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24370 transitions. [2022-01-18 11:04:30,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:30,646 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24370 transitions. [2022-01-18 11:04:30,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:30,655 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:30,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:30,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-18 11:04:30,656 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:30,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:30,656 INFO L85 PathProgramCache]: Analyzing trace with hash 599006722, now seen corresponding path program 25 times [2022-01-18 11:04:30,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:30,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959584109] [2022-01-18 11:04:30,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:30,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:30,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:30,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:30,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959584109] [2022-01-18 11:04:30,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959584109] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:30,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:30,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:30,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938224318] [2022-01-18 11:04:30,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:30,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:30,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:30,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:30,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:30,798 INFO L87 Difference]: Start difference. First operand 9024 states and 24370 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:31,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:31,515 INFO L93 Difference]: Finished difference Result 11158 states and 30040 transitions. [2022-01-18 11:04:31,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:04:31,515 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:31,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:31,528 INFO L225 Difference]: With dead ends: 11158 [2022-01-18 11:04:31,528 INFO L226 Difference]: Without dead ends: 10592 [2022-01-18 11:04:31,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=681, Invalid=1869, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:04:31,529 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 350 mSDsluCounter, 2944 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 3242 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:31,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 3242 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:31,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10592 states. [2022-01-18 11:04:31,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10592 to 9020. [2022-01-18 11:04:31,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9020 states, 9019 states have (on average 2.700853753187715) internal successors, (24359), 9019 states have internal predecessors, (24359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:31,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24359 transitions. [2022-01-18 11:04:31,641 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24359 transitions. Word has length 109 [2022-01-18 11:04:31,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:31,641 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24359 transitions. [2022-01-18 11:04:31,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:31,641 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24359 transitions. [2022-01-18 11:04:31,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:31,651 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:31,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:31,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-18 11:04:31,651 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:31,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:31,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1903548090, now seen corresponding path program 26 times [2022-01-18 11:04:31,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:31,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075126904] [2022-01-18 11:04:31,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:31,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:31,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:31,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:31,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:31,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075126904] [2022-01-18 11:04:31,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075126904] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:31,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:31,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:31,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008153822] [2022-01-18 11:04:31,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:31,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:31,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:31,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:31,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:31,782 INFO L87 Difference]: Start difference. First operand 9020 states and 24359 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:32,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:32,251 INFO L93 Difference]: Finished difference Result 11132 states and 29992 transitions. [2022-01-18 11:04:32,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:04:32,251 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:32,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:32,265 INFO L225 Difference]: With dead ends: 11132 [2022-01-18 11:04:32,265 INFO L226 Difference]: Without dead ends: 10647 [2022-01-18 11:04:32,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:04:32,266 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 251 mSDsluCounter, 3583 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:32,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 3864 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:32,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10647 states. [2022-01-18 11:04:32,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10647 to 9032. [2022-01-18 11:04:32,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.7004761377477577) internal successors, (24388), 9031 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:32,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24388 transitions. [2022-01-18 11:04:32,383 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24388 transitions. Word has length 109 [2022-01-18 11:04:32,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:32,384 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24388 transitions. [2022-01-18 11:04:32,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:32,384 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24388 transitions. [2022-01-18 11:04:32,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:32,393 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:32,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:32,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-18 11:04:32,394 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:32,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:32,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1221927436, now seen corresponding path program 27 times [2022-01-18 11:04:32,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:32,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230797297] [2022-01-18 11:04:32,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:32,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:32,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:32,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:32,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230797297] [2022-01-18 11:04:32,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230797297] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:32,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:32,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:32,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932234493] [2022-01-18 11:04:32,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:32,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:32,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:32,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:32,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:32,520 INFO L87 Difference]: Start difference. First operand 9032 states and 24388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:33,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:33,001 INFO L93 Difference]: Finished difference Result 11090 states and 29881 transitions. [2022-01-18 11:04:33,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:04:33,001 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:33,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:33,015 INFO L225 Difference]: With dead ends: 11090 [2022-01-18 11:04:33,015 INFO L226 Difference]: Without dead ends: 10604 [2022-01-18 11:04:33,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=373, Invalid=1187, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 11:04:33,016 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 240 mSDsluCounter, 2895 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 3195 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:33,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 3195 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:33,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10604 states. [2022-01-18 11:04:33,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10604 to 9028. [2022-01-18 11:04:33,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7004541929766255) internal successors, (24377), 9027 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:33,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24377 transitions. [2022-01-18 11:04:33,133 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24377 transitions. Word has length 109 [2022-01-18 11:04:33,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:33,134 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24377 transitions. [2022-01-18 11:04:33,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:33,134 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24377 transitions. [2022-01-18 11:04:33,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:33,143 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:33,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:33,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-18 11:04:33,144 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:33,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:33,144 INFO L85 PathProgramCache]: Analyzing trace with hash -521239880, now seen corresponding path program 28 times [2022-01-18 11:04:33,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:33,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116104167] [2022-01-18 11:04:33,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:33,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:33,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:33,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:33,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116104167] [2022-01-18 11:04:33,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116104167] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:33,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:33,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:33,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039500357] [2022-01-18 11:04:33,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:33,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:33,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:33,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:33,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:33,286 INFO L87 Difference]: Start difference. First operand 9028 states and 24377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:33,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:33,976 INFO L93 Difference]: Finished difference Result 11218 states and 30213 transitions. [2022-01-18 11:04:33,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:04:33,977 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:33,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:33,990 INFO L225 Difference]: With dead ends: 11218 [2022-01-18 11:04:33,991 INFO L226 Difference]: Without dead ends: 10692 [2022-01-18 11:04:33,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=528, Invalid=1542, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:04:33,991 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 309 mSDsluCounter, 2540 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 2847 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:33,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 2847 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:34,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10692 states. [2022-01-18 11:04:34,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10692 to 9024. [2022-01-18 11:04:34,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.700432228748753) internal successors, (24366), 9023 states have internal predecessors, (24366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:34,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24366 transitions. [2022-01-18 11:04:34,107 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24366 transitions. Word has length 109 [2022-01-18 11:04:34,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:34,108 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24366 transitions. [2022-01-18 11:04:34,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:34,108 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24366 transitions. [2022-01-18 11:04:34,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:34,118 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:34,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:34,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-18 11:04:34,118 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:34,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:34,118 INFO L85 PathProgramCache]: Analyzing trace with hash 556448148, now seen corresponding path program 29 times [2022-01-18 11:04:34,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:34,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194442481] [2022-01-18 11:04:34,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:34,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:34,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:34,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:34,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194442481] [2022-01-18 11:04:34,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194442481] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:34,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:34,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:34,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381812350] [2022-01-18 11:04:34,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:34,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:34,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:34,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:34,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:34,255 INFO L87 Difference]: Start difference. First operand 9024 states and 24366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:34,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:34,907 INFO L93 Difference]: Finished difference Result 11220 states and 30205 transitions. [2022-01-18 11:04:34,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:04:34,907 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:34,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:34,929 INFO L225 Difference]: With dead ends: 11220 [2022-01-18 11:04:34,929 INFO L226 Difference]: Without dead ends: 10692 [2022-01-18 11:04:34,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=461, Invalid=1519, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:04:34,930 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 302 mSDsluCounter, 3454 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 3739 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:34,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 3739 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:34,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10692 states. [2022-01-18 11:04:35,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10692 to 9028. [2022-01-18 11:04:35,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7000110778774786) internal successors, (24373), 9027 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:35,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24373 transitions. [2022-01-18 11:04:35,057 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24373 transitions. Word has length 109 [2022-01-18 11:04:35,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:35,057 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24373 transitions. [2022-01-18 11:04:35,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:35,057 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24373 transitions. [2022-01-18 11:04:35,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:35,067 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:35,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:35,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-18 11:04:35,067 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:35,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:35,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1951584194, now seen corresponding path program 30 times [2022-01-18 11:04:35,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:35,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520073669] [2022-01-18 11:04:35,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:35,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:35,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:35,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:35,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520073669] [2022-01-18 11:04:35,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520073669] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:35,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:35,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:35,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722369083] [2022-01-18 11:04:35,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:35,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:35,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:35,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:35,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:35,198 INFO L87 Difference]: Start difference. First operand 9028 states and 24373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:35,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:35,726 INFO L93 Difference]: Finished difference Result 11072 states and 29819 transitions. [2022-01-18 11:04:35,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:04:35,726 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:35,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:35,740 INFO L225 Difference]: With dead ends: 11072 [2022-01-18 11:04:35,741 INFO L226 Difference]: Without dead ends: 10587 [2022-01-18 11:04:35,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=348, Invalid=1134, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:04:35,741 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 244 mSDsluCounter, 2905 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 3201 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:35,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 3201 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:35,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10587 states. [2022-01-18 11:04:35,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 9032. [2022-01-18 11:04:35,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.699590300077511) internal successors, (24380), 9031 states have internal predecessors, (24380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:35,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24380 transitions. [2022-01-18 11:04:35,857 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24380 transitions. Word has length 109 [2022-01-18 11:04:35,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:35,857 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24380 transitions. [2022-01-18 11:04:35,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:35,857 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24380 transitions. [2022-01-18 11:04:35,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:35,867 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:35,867 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:35,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-18 11:04:35,867 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:35,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:35,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1269963540, now seen corresponding path program 31 times [2022-01-18 11:04:35,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:35,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477723673] [2022-01-18 11:04:35,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:35,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:36,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:36,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:36,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477723673] [2022-01-18 11:04:36,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477723673] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:36,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:36,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:36,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036094169] [2022-01-18 11:04:36,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:36,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:36,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:36,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:36,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:36,011 INFO L87 Difference]: Start difference. First operand 9032 states and 24380 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:36,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:36,465 INFO L93 Difference]: Finished difference Result 10990 states and 29598 transitions. [2022-01-18 11:04:36,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:04:36,465 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:36,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:36,479 INFO L225 Difference]: With dead ends: 10990 [2022-01-18 11:04:36,479 INFO L226 Difference]: Without dead ends: 10492 [2022-01-18 11:04:36,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=354, Invalid=1128, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:04:36,480 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 225 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 3384 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:36,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 3384 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:36,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10492 states. [2022-01-18 11:04:36,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10492 to 9016. [2022-01-18 11:04:36,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9016 states, 9015 states have (on average 2.700831946755408) internal successors, (24348), 9015 states have internal predecessors, (24348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:36,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9016 states to 9016 states and 24348 transitions. [2022-01-18 11:04:36,595 INFO L78 Accepts]: Start accepts. Automaton has 9016 states and 24348 transitions. Word has length 109 [2022-01-18 11:04:36,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:36,596 INFO L470 AbstractCegarLoop]: Abstraction has 9016 states and 24348 transitions. [2022-01-18 11:04:36,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:36,596 INFO L276 IsEmpty]: Start isEmpty. Operand 9016 states and 24348 transitions. [2022-01-18 11:04:36,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:36,605 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:36,605 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:36,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-18 11:04:36,606 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:36,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:36,606 INFO L85 PathProgramCache]: Analyzing trace with hash -821603778, now seen corresponding path program 32 times [2022-01-18 11:04:36,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:36,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441351150] [2022-01-18 11:04:36,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:36,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:36,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:36,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:36,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441351150] [2022-01-18 11:04:36,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441351150] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:36,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:36,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:36,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473427007] [2022-01-18 11:04:36,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:36,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:36,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:36,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:36,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:36,723 INFO L87 Difference]: Start difference. First operand 9016 states and 24348 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:37,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:37,165 INFO L93 Difference]: Finished difference Result 11168 states and 30091 transitions. [2022-01-18 11:04:37,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:04:37,166 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:37,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:37,180 INFO L225 Difference]: With dead ends: 11168 [2022-01-18 11:04:37,180 INFO L226 Difference]: Without dead ends: 10683 [2022-01-18 11:04:37,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:04:37,181 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 252 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 3408 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:37,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [252 Valid, 3408 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:37,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2022-01-18 11:04:37,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 9032. [2022-01-18 11:04:37,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.7004761377477577) internal successors, (24388), 9031 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:37,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24388 transitions. [2022-01-18 11:04:37,301 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24388 transitions. Word has length 109 [2022-01-18 11:04:37,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:37,302 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24388 transitions. [2022-01-18 11:04:37,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:37,302 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24388 transitions. [2022-01-18 11:04:37,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:37,313 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:37,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:37,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-18 11:04:37,313 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:37,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:37,314 INFO L85 PathProgramCache]: Analyzing trace with hash -139983124, now seen corresponding path program 33 times [2022-01-18 11:04:37,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:37,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829282324] [2022-01-18 11:04:37,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:37,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:37,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:37,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:37,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829282324] [2022-01-18 11:04:37,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829282324] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:37,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:37,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:37,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187666637] [2022-01-18 11:04:37,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:37,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:37,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:37,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:37,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:37,432 INFO L87 Difference]: Start difference. First operand 9032 states and 24388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:37,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:37,938 INFO L93 Difference]: Finished difference Result 11126 states and 29980 transitions. [2022-01-18 11:04:37,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:04:37,938 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:37,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:37,953 INFO L225 Difference]: With dead ends: 11126 [2022-01-18 11:04:37,953 INFO L226 Difference]: Without dead ends: 10640 [2022-01-18 11:04:37,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 11:04:37,954 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 237 mSDsluCounter, 3316 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 3609 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:37,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 3609 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:37,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10640 states. [2022-01-18 11:04:38,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10640 to 9028. [2022-01-18 11:04:38,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7004541929766255) internal successors, (24377), 9027 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:38,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24377 transitions. [2022-01-18 11:04:38,082 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24377 transitions. Word has length 109 [2022-01-18 11:04:38,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:38,082 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24377 transitions. [2022-01-18 11:04:38,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:38,082 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24377 transitions. [2022-01-18 11:04:38,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:38,094 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:38,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:38,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-18 11:04:38,095 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:38,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:38,095 INFO L85 PathProgramCache]: Analyzing trace with hash 560704432, now seen corresponding path program 34 times [2022-01-18 11:04:38,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:38,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57799647] [2022-01-18 11:04:38,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:38,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:38,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:38,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:38,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57799647] [2022-01-18 11:04:38,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57799647] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:38,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:38,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:38,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394476135] [2022-01-18 11:04:38,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:38,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:38,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:38,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:38,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:38,227 INFO L87 Difference]: Start difference. First operand 9028 states and 24377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:38,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:38,845 INFO L93 Difference]: Finished difference Result 11234 states and 30257 transitions. [2022-01-18 11:04:38,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:04:38,846 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:38,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:38,860 INFO L225 Difference]: With dead ends: 11234 [2022-01-18 11:04:38,860 INFO L226 Difference]: Without dead ends: 10708 [2022-01-18 11:04:38,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=515, Invalid=1465, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:04:38,861 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 305 mSDsluCounter, 3271 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 3566 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:38,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 3566 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:38,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10708 states. [2022-01-18 11:04:38,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10708 to 9024. [2022-01-18 11:04:38,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.700432228748753) internal successors, (24366), 9023 states have internal predecessors, (24366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:38,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24366 transitions. [2022-01-18 11:04:38,978 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24366 transitions. Word has length 109 [2022-01-18 11:04:38,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:38,978 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24366 transitions. [2022-01-18 11:04:38,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:38,978 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24366 transitions. [2022-01-18 11:04:38,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:38,988 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:38,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:38,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-18 11:04:38,989 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:38,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:38,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1638392460, now seen corresponding path program 35 times [2022-01-18 11:04:38,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:38,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895671981] [2022-01-18 11:04:38,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:38,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:38,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:39,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:39,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:39,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895671981] [2022-01-18 11:04:39,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895671981] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:39,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:39,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:39,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888021868] [2022-01-18 11:04:39,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:39,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:39,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:39,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:39,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:39,102 INFO L87 Difference]: Start difference. First operand 9024 states and 24366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:39,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:39,651 INFO L93 Difference]: Finished difference Result 11332 states and 30513 transitions. [2022-01-18 11:04:39,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:04:39,651 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:39,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:39,666 INFO L225 Difference]: With dead ends: 11332 [2022-01-18 11:04:39,666 INFO L226 Difference]: Without dead ends: 10804 [2022-01-18 11:04:39,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:04:39,667 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 310 mSDsluCounter, 3465 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 3752 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:39,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 3752 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:39,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10804 states. [2022-01-18 11:04:39,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10804 to 9028. [2022-01-18 11:04:39,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7000110778774786) internal successors, (24373), 9027 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:39,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24373 transitions. [2022-01-18 11:04:39,818 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24373 transitions. Word has length 109 [2022-01-18 11:04:39,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:39,819 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24373 transitions. [2022-01-18 11:04:39,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:39,819 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24373 transitions. [2022-01-18 11:04:39,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:39,828 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:39,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:39,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-18 11:04:39,829 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:39,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:39,829 INFO L85 PathProgramCache]: Analyzing trace with hash -869639882, now seen corresponding path program 36 times [2022-01-18 11:04:39,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:39,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661114428] [2022-01-18 11:04:39,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:39,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:39,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:39,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:39,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661114428] [2022-01-18 11:04:39,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661114428] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:39,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:39,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:39,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49286605] [2022-01-18 11:04:39,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:39,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:39,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:39,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:39,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:39,961 INFO L87 Difference]: Start difference. First operand 9028 states and 24373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:40,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:40,481 INFO L93 Difference]: Finished difference Result 11168 states and 30083 transitions. [2022-01-18 11:04:40,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:04:40,481 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:40,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:40,495 INFO L225 Difference]: With dead ends: 11168 [2022-01-18 11:04:40,495 INFO L226 Difference]: Without dead ends: 10683 [2022-01-18 11:04:40,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:04:40,496 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 249 mSDsluCounter, 3139 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3432 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:40,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 3432 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:40,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2022-01-18 11:04:40,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 9032. [2022-01-18 11:04:40,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.699590300077511) internal successors, (24380), 9031 states have internal predecessors, (24380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:40,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24380 transitions. [2022-01-18 11:04:40,614 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24380 transitions. Word has length 109 [2022-01-18 11:04:40,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:40,614 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24380 transitions. [2022-01-18 11:04:40,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:40,615 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24380 transitions. [2022-01-18 11:04:40,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:40,625 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:40,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:40,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-01-18 11:04:40,625 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:40,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:40,626 INFO L85 PathProgramCache]: Analyzing trace with hash -188019228, now seen corresponding path program 37 times [2022-01-18 11:04:40,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:40,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038372713] [2022-01-18 11:04:40,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:40,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:40,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:40,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:40,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038372713] [2022-01-18 11:04:40,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038372713] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:40,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:40,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:40,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343159707] [2022-01-18 11:04:40,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:40,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:40,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:40,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:40,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:40,763 INFO L87 Difference]: Start difference. First operand 9032 states and 24380 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:41,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:41,330 INFO L93 Difference]: Finished difference Result 11102 states and 29906 transitions. [2022-01-18 11:04:41,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:04:41,331 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:41,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:41,345 INFO L225 Difference]: With dead ends: 11102 [2022-01-18 11:04:41,345 INFO L226 Difference]: Without dead ends: 10608 [2022-01-18 11:04:41,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:04:41,346 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 234 mSDsluCounter, 3307 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 3598 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:41,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 3598 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:41,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10608 states. [2022-01-18 11:04:41,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10608 to 9020. [2022-01-18 11:04:41,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9020 states, 9019 states have (on average 2.7004102450382526) internal successors, (24355), 9019 states have internal predecessors, (24355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:41,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24355 transitions. [2022-01-18 11:04:41,463 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24355 transitions. Word has length 109 [2022-01-18 11:04:41,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:41,463 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24355 transitions. [2022-01-18 11:04:41,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:41,463 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24355 transitions. [2022-01-18 11:04:41,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:41,473 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:41,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:41,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-01-18 11:04:41,473 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:41,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:41,474 INFO L85 PathProgramCache]: Analyzing trace with hash 134914624, now seen corresponding path program 38 times [2022-01-18 11:04:41,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:41,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385300873] [2022-01-18 11:04:41,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:41,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:41,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:41,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:41,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385300873] [2022-01-18 11:04:41,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385300873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:41,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:41,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:41,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732563268] [2022-01-18 11:04:41,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:41,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:41,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:41,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:41,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:41,588 INFO L87 Difference]: Start difference. First operand 9020 states and 24355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:42,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:42,234 INFO L93 Difference]: Finished difference Result 11353 states and 30552 transitions. [2022-01-18 11:04:42,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:04:42,235 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:42,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:42,248 INFO L225 Difference]: With dead ends: 11353 [2022-01-18 11:04:42,249 INFO L226 Difference]: Without dead ends: 10782 [2022-01-18 11:04:42,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=639, Invalid=2117, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:04:42,250 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 368 mSDsluCounter, 3789 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 4068 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:42,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 4068 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:42,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10782 states. [2022-01-18 11:04:42,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10782 to 9024. [2022-01-18 11:04:42,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.6999889172115705) internal successors, (24362), 9023 states have internal predecessors, (24362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:42,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24362 transitions. [2022-01-18 11:04:42,366 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24362 transitions. Word has length 109 [2022-01-18 11:04:42,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:42,366 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24362 transitions. [2022-01-18 11:04:42,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:42,366 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24362 transitions. [2022-01-18 11:04:42,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:42,376 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:42,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:42,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-01-18 11:04:42,376 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:42,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:42,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1924477078, now seen corresponding path program 39 times [2022-01-18 11:04:42,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:42,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915221311] [2022-01-18 11:04:42,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:42,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:42,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:42,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:42,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915221311] [2022-01-18 11:04:42,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915221311] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:42,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:42,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:42,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713997790] [2022-01-18 11:04:42,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:42,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:42,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:42,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:42,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:42,493 INFO L87 Difference]: Start difference. First operand 9024 states and 24362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:43,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:43,047 INFO L93 Difference]: Finished difference Result 11236 states and 30245 transitions. [2022-01-18 11:04:43,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:04:43,047 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:43,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:43,061 INFO L225 Difference]: With dead ends: 11236 [2022-01-18 11:04:43,061 INFO L226 Difference]: Without dead ends: 10708 [2022-01-18 11:04:43,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=485, Invalid=1677, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:04:43,062 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 308 mSDsluCounter, 3220 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:43,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 3512 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:43,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10708 states. [2022-01-18 11:04:43,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10708 to 9028. [2022-01-18 11:04:43,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.6995679627783318) internal successors, (24369), 9027 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:43,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24369 transitions. [2022-01-18 11:04:43,176 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24369 transitions. Word has length 109 [2022-01-18 11:04:43,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:43,177 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24369 transitions. [2022-01-18 11:04:43,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:43,177 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24369 transitions. [2022-01-18 11:04:43,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:43,186 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:43,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:43,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-01-18 11:04:43,187 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:43,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:43,187 INFO L85 PathProgramCache]: Analyzing trace with hash -583555264, now seen corresponding path program 40 times [2022-01-18 11:04:43,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:43,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999441083] [2022-01-18 11:04:43,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:43,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:43,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:43,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:43,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999441083] [2022-01-18 11:04:43,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999441083] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:43,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:43,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:43,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928866965] [2022-01-18 11:04:43,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:43,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:43,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:43,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:43,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:43,320 INFO L87 Difference]: Start difference. First operand 9028 states and 24369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:43,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:43,794 INFO L93 Difference]: Finished difference Result 11088 states and 29859 transitions. [2022-01-18 11:04:43,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:04:43,794 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:43,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:43,808 INFO L225 Difference]: With dead ends: 11088 [2022-01-18 11:04:43,809 INFO L226 Difference]: Without dead ends: 10603 [2022-01-18 11:04:43,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:04:43,809 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 247 mSDsluCounter, 2966 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 3259 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:43,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 3259 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:43,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10603 states. [2022-01-18 11:04:43,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10603 to 9032. [2022-01-18 11:04:43,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.6991473812423874) internal successors, (24376), 9031 states have internal predecessors, (24376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:43,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24376 transitions. [2022-01-18 11:04:43,926 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24376 transitions. Word has length 109 [2022-01-18 11:04:43,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:43,926 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24376 transitions. [2022-01-18 11:04:43,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:43,926 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24376 transitions. [2022-01-18 11:04:43,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:43,936 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:43,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:43,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-01-18 11:04:43,936 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:43,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:43,937 INFO L85 PathProgramCache]: Analyzing trace with hash 98065390, now seen corresponding path program 41 times [2022-01-18 11:04:43,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:43,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039392859] [2022-01-18 11:04:43,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:43,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:44,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:44,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:44,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039392859] [2022-01-18 11:04:44,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039392859] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:44,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:44,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:44,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214810022] [2022-01-18 11:04:44,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:44,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:44,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:44,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:44,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:44,061 INFO L87 Difference]: Start difference. First operand 9032 states and 24376 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:44,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:44,502 INFO L93 Difference]: Finished difference Result 10990 states and 29594 transitions. [2022-01-18 11:04:44,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:04:44,502 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:44,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:44,518 INFO L225 Difference]: With dead ends: 10990 [2022-01-18 11:04:44,518 INFO L226 Difference]: Without dead ends: 10488 [2022-01-18 11:04:44,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:04:44,519 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 225 mSDsluCounter, 3289 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 3576 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:44,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 3576 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:44,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10488 states. [2022-01-18 11:04:44,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10488 to 9012. [2022-01-18 11:04:44,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9012 states, 9011 states have (on average 2.700810120963267) internal successors, (24337), 9011 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:44,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9012 states to 9012 states and 24337 transitions. [2022-01-18 11:04:44,632 INFO L78 Accepts]: Start accepts. Automaton has 9012 states and 24337 transitions. Word has length 109 [2022-01-18 11:04:44,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:44,632 INFO L470 AbstractCegarLoop]: Abstraction has 9012 states and 24337 transitions. [2022-01-18 11:04:44,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:44,633 INFO L276 IsEmpty]: Start isEmpty. Operand 9012 states and 24337 transitions. [2022-01-18 11:04:44,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:44,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:44,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:44,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-01-18 11:04:44,643 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:44,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:44,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1814843604, now seen corresponding path program 42 times [2022-01-18 11:04:44,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:44,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080012177] [2022-01-18 11:04:44,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:44,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:44,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:44,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:44,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080012177] [2022-01-18 11:04:44,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080012177] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:44,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:44,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:44,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717365210] [2022-01-18 11:04:44,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:44,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:44,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:44,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:44,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:44,769 INFO L87 Difference]: Start difference. First operand 9012 states and 24337 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:45,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:45,224 INFO L93 Difference]: Finished difference Result 11024 states and 29695 transitions. [2022-01-18 11:04:45,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:04:45,225 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:45,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:45,238 INFO L225 Difference]: With dead ends: 11024 [2022-01-18 11:04:45,239 INFO L226 Difference]: Without dead ends: 10539 [2022-01-18 11:04:45,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:04:45,239 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 249 mSDsluCounter, 3556 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3835 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:45,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 3835 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:45,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10539 states. [2022-01-18 11:04:45,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10539 to 9032. [2022-01-18 11:04:45,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.7004761377477577) internal successors, (24388), 9031 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:45,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24388 transitions. [2022-01-18 11:04:45,355 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24388 transitions. Word has length 109 [2022-01-18 11:04:45,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:45,355 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24388 transitions. [2022-01-18 11:04:45,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:45,355 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24388 transitions. [2022-01-18 11:04:45,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:45,365 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:45,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:45,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-01-18 11:04:45,365 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:45,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:45,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1133222950, now seen corresponding path program 43 times [2022-01-18 11:04:45,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:45,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856638502] [2022-01-18 11:04:45,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:45,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:45,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:45,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:45,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856638502] [2022-01-18 11:04:45,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856638502] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:45,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:45,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:45,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481913346] [2022-01-18 11:04:45,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:45,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:45,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:45,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:45,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:45,500 INFO L87 Difference]: Start difference. First operand 9032 states and 24388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:46,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:46,004 INFO L93 Difference]: Finished difference Result 10982 states and 29584 transitions. [2022-01-18 11:04:46,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:04:46,004 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:46,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:46,019 INFO L225 Difference]: With dead ends: 10982 [2022-01-18 11:04:46,019 INFO L226 Difference]: Without dead ends: 10496 [2022-01-18 11:04:46,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=381, Invalid=1179, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 11:04:46,020 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 232 mSDsluCounter, 3299 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 3591 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:46,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 3591 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:46,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10496 states. [2022-01-18 11:04:46,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10496 to 9028. [2022-01-18 11:04:46,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7004541929766255) internal successors, (24377), 9027 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:46,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24377 transitions. [2022-01-18 11:04:46,142 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24377 transitions. Word has length 109 [2022-01-18 11:04:46,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:46,142 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24377 transitions. [2022-01-18 11:04:46,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:46,142 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24377 transitions. [2022-01-18 11:04:46,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:46,152 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:46,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:46,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-01-18 11:04:46,152 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:46,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:46,153 INFO L85 PathProgramCache]: Analyzing trace with hash -432535394, now seen corresponding path program 44 times [2022-01-18 11:04:46,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:46,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688648915] [2022-01-18 11:04:46,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:46,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:46,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:46,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:46,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688648915] [2022-01-18 11:04:46,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688648915] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:46,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:46,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:46,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183742111] [2022-01-18 11:04:46,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:46,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:46,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:46,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:46,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:46,293 INFO L87 Difference]: Start difference. First operand 9028 states and 24377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:46,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:46,896 INFO L93 Difference]: Finished difference Result 11050 states and 29751 transitions. [2022-01-18 11:04:46,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:04:46,896 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:46,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:46,910 INFO L225 Difference]: With dead ends: 11050 [2022-01-18 11:04:46,910 INFO L226 Difference]: Without dead ends: 10524 [2022-01-18 11:04:46,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=503, Invalid=1389, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:04:46,911 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 300 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 3543 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:46,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 3543 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:46,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10524 states. [2022-01-18 11:04:47,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10524 to 9024. [2022-01-18 11:04:47,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.700432228748753) internal successors, (24366), 9023 states have internal predecessors, (24366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:47,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24366 transitions. [2022-01-18 11:04:47,028 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24366 transitions. Word has length 109 [2022-01-18 11:04:47,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:47,028 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24366 transitions. [2022-01-18 11:04:47,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:47,028 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24366 transitions. [2022-01-18 11:04:47,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:47,038 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:47,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:47,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-01-18 11:04:47,038 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:47,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:47,038 INFO L85 PathProgramCache]: Analyzing trace with hash 645152634, now seen corresponding path program 45 times [2022-01-18 11:04:47,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:47,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874714520] [2022-01-18 11:04:47,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:47,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:47,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:47,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:47,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874714520] [2022-01-18 11:04:47,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874714520] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:47,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:47,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:47,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009820212] [2022-01-18 11:04:47,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:47,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:47,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:47,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:47,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:47,159 INFO L87 Difference]: Start difference. First operand 9024 states and 24366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:47,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:47,738 INFO L93 Difference]: Finished difference Result 11180 states and 30095 transitions. [2022-01-18 11:04:47,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:04:47,739 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:47,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:47,752 INFO L225 Difference]: With dead ends: 11180 [2022-01-18 11:04:47,753 INFO L226 Difference]: Without dead ends: 10652 [2022-01-18 11:04:47,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=458, Invalid=1522, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:04:47,753 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 335 mSDsluCounter, 3341 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 3623 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:47,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 3623 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:47,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10652 states. [2022-01-18 11:04:47,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10652 to 9028. [2022-01-18 11:04:47,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7000110778774786) internal successors, (24373), 9027 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:47,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24373 transitions. [2022-01-18 11:04:47,904 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24373 transitions. Word has length 109 [2022-01-18 11:04:47,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:47,904 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24373 transitions. [2022-01-18 11:04:47,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:47,904 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24373 transitions. [2022-01-18 11:04:47,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:47,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:47,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:47,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-01-18 11:04:47,914 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:47,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:47,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1862879708, now seen corresponding path program 46 times [2022-01-18 11:04:47,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:47,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956549789] [2022-01-18 11:04:47,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:47,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:48,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:48,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:48,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956549789] [2022-01-18 11:04:48,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956549789] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:48,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:48,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:48,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949038479] [2022-01-18 11:04:48,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:48,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:48,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:48,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:48,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:48,049 INFO L87 Difference]: Start difference. First operand 9028 states and 24373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:48,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:48,512 INFO L93 Difference]: Finished difference Result 11016 states and 29665 transitions. [2022-01-18 11:04:48,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:04:48,513 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:48,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:48,526 INFO L225 Difference]: With dead ends: 11016 [2022-01-18 11:04:48,527 INFO L226 Difference]: Without dead ends: 10531 [2022-01-18 11:04:48,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:04:48,527 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 266 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 3533 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:48,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 3533 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:48,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10531 states. [2022-01-18 11:04:48,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10531 to 9032. [2022-01-18 11:04:48,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.699590300077511) internal successors, (24380), 9031 states have internal predecessors, (24380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:48,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24380 transitions. [2022-01-18 11:04:48,644 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24380 transitions. Word has length 109 [2022-01-18 11:04:48,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:48,644 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24380 transitions. [2022-01-18 11:04:48,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:48,644 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24380 transitions. [2022-01-18 11:04:48,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:48,654 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:48,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:48,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-01-18 11:04:48,654 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:48,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:48,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1181259054, now seen corresponding path program 47 times [2022-01-18 11:04:48,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:48,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662127671] [2022-01-18 11:04:48,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:48,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:48,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:48,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:48,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662127671] [2022-01-18 11:04:48,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662127671] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:48,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:48,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:48,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819110013] [2022-01-18 11:04:48,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:48,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:48,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:48,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:48,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:48,794 INFO L87 Difference]: Start difference. First operand 9032 states and 24380 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:49,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:49,265 INFO L93 Difference]: Finished difference Result 10950 states and 29488 transitions. [2022-01-18 11:04:49,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:04:49,266 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:49,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:49,280 INFO L225 Difference]: With dead ends: 10950 [2022-01-18 11:04:49,280 INFO L226 Difference]: Without dead ends: 10456 [2022-01-18 11:04:49,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:04:49,280 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 254 mSDsluCounter, 3466 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 3745 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:49,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 3745 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:49,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10456 states. [2022-01-18 11:04:49,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10456 to 9020. [2022-01-18 11:04:49,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9020 states, 9019 states have (on average 2.7004102450382526) internal successors, (24355), 9019 states have internal predecessors, (24355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:49,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24355 transitions. [2022-01-18 11:04:49,408 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24355 transitions. Word has length 109 [2022-01-18 11:04:49,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:49,408 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24355 transitions. [2022-01-18 11:04:49,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:49,408 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24355 transitions. [2022-01-18 11:04:49,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:49,419 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:49,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:49,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-01-18 11:04:49,420 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:49,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:49,420 INFO L85 PathProgramCache]: Analyzing trace with hash -858325202, now seen corresponding path program 48 times [2022-01-18 11:04:49,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:49,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419902333] [2022-01-18 11:04:49,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:49,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:49,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:49,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:49,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419902333] [2022-01-18 11:04:49,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419902333] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:49,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:49,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:49,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87177637] [2022-01-18 11:04:49,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:49,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:49,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:49,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:49,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:49,550 INFO L87 Difference]: Start difference. First operand 9020 states and 24355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:50,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:50,203 INFO L93 Difference]: Finished difference Result 11313 states and 30442 transitions. [2022-01-18 11:04:50,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:04:50,203 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:50,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:50,217 INFO L225 Difference]: With dead ends: 11313 [2022-01-18 11:04:50,217 INFO L226 Difference]: Without dead ends: 10742 [2022-01-18 11:04:50,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=645, Invalid=2217, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:04:50,218 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 400 mSDsluCounter, 3746 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 4019 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:50,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 4019 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:50,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10742 states. [2022-01-18 11:04:50,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10742 to 9024. [2022-01-18 11:04:50,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.6999889172115705) internal successors, (24362), 9023 states have internal predecessors, (24362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:50,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24362 transitions. [2022-01-18 11:04:50,334 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24362 transitions. Word has length 109 [2022-01-18 11:04:50,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:50,334 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24362 transitions. [2022-01-18 11:04:50,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:50,334 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24362 transitions. [2022-01-18 11:04:50,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:50,343 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:50,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:50,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-01-18 11:04:50,343 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:50,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:50,344 INFO L85 PathProgramCache]: Analyzing trace with hash 931237252, now seen corresponding path program 49 times [2022-01-18 11:04:50,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:50,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659413143] [2022-01-18 11:04:50,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:50,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:50,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:50,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:50,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659413143] [2022-01-18 11:04:50,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659413143] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:50,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:50,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:50,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377985000] [2022-01-18 11:04:50,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:50,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:50,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:50,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:50,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:50,461 INFO L87 Difference]: Start difference. First operand 9024 states and 24362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:51,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:51,026 INFO L93 Difference]: Finished difference Result 11188 states and 30113 transitions. [2022-01-18 11:04:51,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:04:51,027 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:51,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:51,040 INFO L225 Difference]: With dead ends: 11188 [2022-01-18 11:04:51,041 INFO L226 Difference]: Without dead ends: 10660 [2022-01-18 11:04:51,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=474, Invalid=1688, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:04:51,041 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 334 mSDsluCounter, 3655 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 3930 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:51,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 3930 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:51,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10660 states. [2022-01-18 11:04:51,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10660 to 9028. [2022-01-18 11:04:51,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.6995679627783318) internal successors, (24369), 9027 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:51,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24369 transitions. [2022-01-18 11:04:51,158 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24369 transitions. Word has length 109 [2022-01-18 11:04:51,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:51,158 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24369 transitions. [2022-01-18 11:04:51,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:51,158 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24369 transitions. [2022-01-18 11:04:51,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:51,168 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:51,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:51,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-01-18 11:04:51,168 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:51,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:51,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1576795090, now seen corresponding path program 50 times [2022-01-18 11:04:51,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:51,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964968363] [2022-01-18 11:04:51,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:51,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:51,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:51,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:51,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:51,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964968363] [2022-01-18 11:04:51,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964968363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:51,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:51,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:51,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698326771] [2022-01-18 11:04:51,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:51,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:51,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:51,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:51,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:51,305 INFO L87 Difference]: Start difference. First operand 9028 states and 24369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:51,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:51,755 INFO L93 Difference]: Finished difference Result 11024 states and 29683 transitions. [2022-01-18 11:04:51,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:04:51,755 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:51,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:51,770 INFO L225 Difference]: With dead ends: 11024 [2022-01-18 11:04:51,770 INFO L226 Difference]: Without dead ends: 10539 [2022-01-18 11:04:51,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:04:51,770 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 267 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 3584 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:51,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 3584 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:51,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10539 states. [2022-01-18 11:04:51,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10539 to 9032. [2022-01-18 11:04:51,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.6991473812423874) internal successors, (24376), 9031 states have internal predecessors, (24376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:51,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24376 transitions. [2022-01-18 11:04:51,886 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24376 transitions. Word has length 109 [2022-01-18 11:04:51,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:51,886 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24376 transitions. [2022-01-18 11:04:51,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:51,887 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24376 transitions. [2022-01-18 11:04:51,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:51,896 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:51,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:51,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-01-18 11:04:51,897 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:51,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:51,897 INFO L85 PathProgramCache]: Analyzing trace with hash -895174436, now seen corresponding path program 51 times [2022-01-18 11:04:51,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:51,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680028274] [2022-01-18 11:04:51,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:51,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:52,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:52,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:52,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680028274] [2022-01-18 11:04:52,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680028274] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:52,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:52,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:52,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224009664] [2022-01-18 11:04:52,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:52,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:52,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:52,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:52,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:52,019 INFO L87 Difference]: Start difference. First operand 9032 states and 24376 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:52,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:52,468 INFO L93 Difference]: Finished difference Result 10950 states and 29484 transitions. [2022-01-18 11:04:52,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:04:52,468 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:52,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:52,482 INFO L225 Difference]: With dead ends: 10950 [2022-01-18 11:04:52,483 INFO L226 Difference]: Without dead ends: 10452 [2022-01-18 11:04:52,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:04:52,483 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 253 mSDsluCounter, 3453 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 3728 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:52,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 3728 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:52,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10452 states. [2022-01-18 11:04:52,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10452 to 9016. [2022-01-18 11:04:52,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9016 states, 9015 states have (on average 2.7003882418191902) internal successors, (24344), 9015 states have internal predecessors, (24344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:52,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9016 states to 9016 states and 24344 transitions. [2022-01-18 11:04:52,603 INFO L78 Accepts]: Start accepts. Automaton has 9016 states and 24344 transitions. Word has length 109 [2022-01-18 11:04:52,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:52,603 INFO L470 AbstractCegarLoop]: Abstraction has 9016 states and 24344 transitions. [2022-01-18 11:04:52,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:52,603 INFO L276 IsEmpty]: Start isEmpty. Operand 9016 states and 24344 transitions. [2022-01-18 11:04:52,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:52,613 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:52,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:52,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-01-18 11:04:52,613 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:52,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:52,613 INFO L85 PathProgramCache]: Analyzing trace with hash -220682792, now seen corresponding path program 52 times [2022-01-18 11:04:52,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:52,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752895135] [2022-01-18 11:04:52,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:52,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:52,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:52,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:52,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752895135] [2022-01-18 11:04:52,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752895135] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:52,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:52,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:52,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898226694] [2022-01-18 11:04:52,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:52,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:52,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:52,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:52,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:52,734 INFO L87 Difference]: Start difference. First operand 9016 states and 24344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:53,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:53,481 INFO L93 Difference]: Finished difference Result 11293 states and 30362 transitions. [2022-01-18 11:04:53,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 11:04:53,481 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:53,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:53,496 INFO L225 Difference]: With dead ends: 11293 [2022-01-18 11:04:53,496 INFO L226 Difference]: Without dead ends: 10679 [2022-01-18 11:04:53,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1020 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=847, Invalid=2813, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:04:53,497 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 485 mSDsluCounter, 3544 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 3822 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:53,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 3822 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:53,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10679 states. [2022-01-18 11:04:53,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10679 to 9020. [2022-01-18 11:04:53,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9020 states, 9019 states have (on average 2.6999667368887903) internal successors, (24351), 9019 states have internal predecessors, (24351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:53,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24351 transitions. [2022-01-18 11:04:53,625 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24351 transitions. Word has length 109 [2022-01-18 11:04:53,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:53,625 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24351 transitions. [2022-01-18 11:04:53,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:53,625 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24351 transitions. [2022-01-18 11:04:53,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:53,635 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:53,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:53,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-01-18 11:04:53,636 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:53,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:53,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1277978946, now seen corresponding path program 53 times [2022-01-18 11:04:53,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:53,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276061821] [2022-01-18 11:04:53,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:53,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:53,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:53,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:53,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276061821] [2022-01-18 11:04:53,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276061821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:53,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:53,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:53,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277463779] [2022-01-18 11:04:53,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:53,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:53,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:53,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:53,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:53,764 INFO L87 Difference]: Start difference. First operand 9020 states and 24351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:54,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:54,501 INFO L93 Difference]: Finished difference Result 11153 states and 29998 transitions. [2022-01-18 11:04:54,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:04:54,502 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:54,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:54,518 INFO L225 Difference]: With dead ends: 11153 [2022-01-18 11:04:54,518 INFO L226 Difference]: Without dead ends: 10582 [2022-01-18 11:04:54,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 760 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=649, Invalid=2213, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:04:54,519 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 413 mSDsluCounter, 2822 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 3112 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:54,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 3112 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:54,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10582 states. [2022-01-18 11:04:54,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10582 to 9024. [2022-01-18 11:04:54,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.6995456056743876) internal successors, (24358), 9023 states have internal predecessors, (24358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:54,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24358 transitions. [2022-01-18 11:04:54,667 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24358 transitions. Word has length 109 [2022-01-18 11:04:54,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:54,667 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24358 transitions. [2022-01-18 11:04:54,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:54,667 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24358 transitions. [2022-01-18 11:04:54,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:54,678 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:54,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:54,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-01-18 11:04:54,678 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:54,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:54,678 INFO L85 PathProgramCache]: Analyzing trace with hash 511583508, now seen corresponding path program 54 times [2022-01-18 11:04:54,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:54,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105299003] [2022-01-18 11:04:54,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:54,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:54,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:54,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:54,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105299003] [2022-01-18 11:04:54,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105299003] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:54,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:54,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:54,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769471382] [2022-01-18 11:04:54,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:54,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:54,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:54,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:54,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:54,824 INFO L87 Difference]: Start difference. First operand 9024 states and 24358 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:55,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:55,379 INFO L93 Difference]: Finished difference Result 11040 states and 29702 transitions. [2022-01-18 11:04:55,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:04:55,379 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:55,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:55,396 INFO L225 Difference]: With dead ends: 11040 [2022-01-18 11:04:55,396 INFO L226 Difference]: Without dead ends: 10512 [2022-01-18 11:04:55,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1698, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:04:55,396 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 351 mSDsluCounter, 3595 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 3861 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:55,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 3861 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:55,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10512 states. [2022-01-18 11:04:55,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10512 to 9028. [2022-01-18 11:04:55,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.6991248476791845) internal successors, (24365), 9027 states have internal predecessors, (24365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:55,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24365 transitions. [2022-01-18 11:04:55,536 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24365 transitions. Word has length 109 [2022-01-18 11:04:55,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:55,536 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24365 transitions. [2022-01-18 11:04:55,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:55,536 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24365 transitions. [2022-01-18 11:04:55,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:55,546 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:55,546 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:55,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-01-18 11:04:55,546 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:55,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:55,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1996448834, now seen corresponding path program 55 times [2022-01-18 11:04:55,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:55,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490197620] [2022-01-18 11:04:55,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:55,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:55,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:55,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:55,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490197620] [2022-01-18 11:04:55,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490197620] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:55,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:55,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:55,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098564662] [2022-01-18 11:04:55,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:55,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:55,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:55,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:55,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:55,674 INFO L87 Difference]: Start difference. First operand 9028 states and 24365 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:56,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:56,126 INFO L93 Difference]: Finished difference Result 10900 states and 29338 transitions. [2022-01-18 11:04:56,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:04:56,126 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:56,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:56,182 INFO L225 Difference]: With dead ends: 10900 [2022-01-18 11:04:56,183 INFO L226 Difference]: Without dead ends: 10415 [2022-01-18 11:04:56,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:04:56,183 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 289 mSDsluCounter, 3473 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 3738 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:56,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 3738 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:56,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10415 states. [2022-01-18 11:04:56,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10415 to 9032. [2022-01-18 11:04:56,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.698704462407264) internal successors, (24372), 9031 states have internal predecessors, (24372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:56,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24372 transitions. [2022-01-18 11:04:56,285 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24372 transitions. Word has length 109 [2022-01-18 11:04:56,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:56,286 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24372 transitions. [2022-01-18 11:04:56,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:56,286 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24372 transitions. [2022-01-18 11:04:56,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:56,295 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:56,295 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:56,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-01-18 11:04:56,296 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:56,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:56,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1314828180, now seen corresponding path program 56 times [2022-01-18 11:04:56,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:56,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387453334] [2022-01-18 11:04:56,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:56,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:56,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:56,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:56,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387453334] [2022-01-18 11:04:56,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387453334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:56,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:56,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:56,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431052682] [2022-01-18 11:04:56,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:56,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:56,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:56,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:56,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:56,408 INFO L87 Difference]: Start difference. First operand 9032 states and 24372 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:56,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:56,817 INFO L93 Difference]: Finished difference Result 10750 states and 28930 transitions. [2022-01-18 11:04:56,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:04:56,817 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:56,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:56,830 INFO L225 Difference]: With dead ends: 10750 [2022-01-18 11:04:56,831 INFO L226 Difference]: Without dead ends: 10218 [2022-01-18 11:04:56,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:04:56,831 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 247 mSDsluCounter, 3383 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 3649 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:56,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 3649 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:04:56,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10218 states. [2022-01-18 11:04:56,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10218 to 8982. [2022-01-18 11:04:56,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8982 states, 8981 states have (on average 2.701592250306202) internal successors, (24263), 8981 states have internal predecessors, (24263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:56,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8982 states to 8982 states and 24263 transitions. [2022-01-18 11:04:56,944 INFO L78 Accepts]: Start accepts. Automaton has 8982 states and 24263 transitions. Word has length 109 [2022-01-18 11:04:56,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:56,944 INFO L470 AbstractCegarLoop]: Abstraction has 8982 states and 24263 transitions. [2022-01-18 11:04:56,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:56,944 INFO L276 IsEmpty]: Start isEmpty. Operand 8982 states and 24263 transitions. [2022-01-18 11:04:56,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:56,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:56,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:56,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-01-18 11:04:56,954 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:56,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:56,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1562377566, now seen corresponding path program 57 times [2022-01-18 11:04:56,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:56,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735139958] [2022-01-18 11:04:56,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:56,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:57,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:57,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:57,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735139958] [2022-01-18 11:04:57,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735139958] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:57,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:57,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:57,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562963327] [2022-01-18 11:04:57,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:57,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:57,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:57,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:57,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:57,079 INFO L87 Difference]: Start difference. First operand 8982 states and 24263 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:57,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:57,523 INFO L93 Difference]: Finished difference Result 11458 states and 30897 transitions. [2022-01-18 11:04:57,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:04:57,523 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:57,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:57,538 INFO L225 Difference]: With dead ends: 11458 [2022-01-18 11:04:57,539 INFO L226 Difference]: Without dead ends: 10973 [2022-01-18 11:04:57,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=961, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:04:57,539 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 207 mSDsluCounter, 3189 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 3434 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:57,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 3434 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:57,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10973 states. [2022-01-18 11:04:57,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10973 to 9010. [2022-01-18 11:04:57,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7012987012987013) internal successors, (24336), 9009 states have internal predecessors, (24336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:57,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24336 transitions. [2022-01-18 11:04:57,661 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24336 transitions. Word has length 109 [2022-01-18 11:04:57,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:57,661 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24336 transitions. [2022-01-18 11:04:57,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:57,661 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24336 transitions. [2022-01-18 11:04:57,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:57,671 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:57,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:57,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-01-18 11:04:57,671 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:57,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:57,671 INFO L85 PathProgramCache]: Analyzing trace with hash -880756912, now seen corresponding path program 58 times [2022-01-18 11:04:57,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:57,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407748121] [2022-01-18 11:04:57,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:57,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:57,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:57,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:57,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407748121] [2022-01-18 11:04:57,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407748121] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:57,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:57,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:57,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267843894] [2022-01-18 11:04:57,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:57,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:57,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:57,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:57,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:57,792 INFO L87 Difference]: Start difference. First operand 9010 states and 24336 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:58,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:58,260 INFO L93 Difference]: Finished difference Result 11424 states and 30808 transitions. [2022-01-18 11:04:58,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:04:58,260 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:58,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:58,274 INFO L225 Difference]: With dead ends: 11424 [2022-01-18 11:04:58,274 INFO L226 Difference]: Without dead ends: 10938 [2022-01-18 11:04:58,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:04:58,275 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 207 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:58,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 3090 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:58,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10938 states. [2022-01-18 11:04:58,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10938 to 9006. [2022-01-18 11:04:58,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7012770682953913) internal successors, (24325), 9005 states have internal predecessors, (24325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:58,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24325 transitions. [2022-01-18 11:04:58,393 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24325 transitions. Word has length 109 [2022-01-18 11:04:58,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:58,394 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24325 transitions. [2022-01-18 11:04:58,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:58,394 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24325 transitions. [2022-01-18 11:04:58,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:58,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:58,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:58,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-01-18 11:04:58,403 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:58,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:58,404 INFO L85 PathProgramCache]: Analyzing trace with hash -180069356, now seen corresponding path program 59 times [2022-01-18 11:04:58,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:58,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130033103] [2022-01-18 11:04:58,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:58,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:58,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:58,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:58,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130033103] [2022-01-18 11:04:58,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130033103] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:58,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:58,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:58,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612040433] [2022-01-18 11:04:58,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:58,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:58,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:58,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:58,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:58,524 INFO L87 Difference]: Start difference. First operand 9006 states and 24325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:59,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:04:59,145 INFO L93 Difference]: Finished difference Result 11460 states and 30903 transitions. [2022-01-18 11:04:59,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:04:59,145 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:04:59,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:04:59,159 INFO L225 Difference]: With dead ends: 11460 [2022-01-18 11:04:59,160 INFO L226 Difference]: Without dead ends: 10934 [2022-01-18 11:04:59,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:04:59,160 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 253 mSDsluCounter, 3248 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:04:59,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 3512 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:04:59,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10934 states. [2022-01-18 11:04:59,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10934 to 9002. [2022-01-18 11:04:59,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.701255416064882) internal successors, (24314), 9001 states have internal predecessors, (24314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:59,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24314 transitions. [2022-01-18 11:04:59,277 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24314 transitions. Word has length 109 [2022-01-18 11:04:59,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:04:59,277 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24314 transitions. [2022-01-18 11:04:59,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:04:59,277 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24314 transitions. [2022-01-18 11:04:59,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:04:59,287 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:04:59,287 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:04:59,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-01-18 11:04:59,287 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:04:59,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:04:59,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1970821476, now seen corresponding path program 60 times [2022-01-18 11:04:59,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:04:59,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957426074] [2022-01-18 11:04:59,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:04:59,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:04:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:04:59,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:04:59,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:04:59,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957426074] [2022-01-18 11:04:59,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957426074] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:04:59,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:04:59,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:04:59,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177344926] [2022-01-18 11:04:59,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:04:59,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:04:59,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:04:59,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:04:59,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:04:59,406 INFO L87 Difference]: Start difference. First operand 9002 states and 24314 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:00,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:00,107 INFO L93 Difference]: Finished difference Result 11632 states and 31348 transitions. [2022-01-18 11:05:00,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:05:00,108 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:00,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:00,122 INFO L225 Difference]: With dead ends: 11632 [2022-01-18 11:05:00,122 INFO L226 Difference]: Without dead ends: 11066 [2022-01-18 11:05:00,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=658, Invalid=1994, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:05:00,123 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 330 mSDsluCounter, 2676 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:00,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 2953 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:00,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11066 states. [2022-01-18 11:05:00,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11066 to 8998. [2022-01-18 11:05:00,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7012337445815273) internal successors, (24303), 8997 states have internal predecessors, (24303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:00,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24303 transitions. [2022-01-18 11:05:00,242 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24303 transitions. Word has length 109 [2022-01-18 11:05:00,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:00,242 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24303 transitions. [2022-01-18 11:05:00,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:00,242 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24303 transitions. [2022-01-18 11:05:00,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:00,252 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:00,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:00,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-01-18 11:05:00,252 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:00,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:00,252 INFO L85 PathProgramCache]: Analyzing trace with hash -531733336, now seen corresponding path program 61 times [2022-01-18 11:05:00,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:00,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999004104] [2022-01-18 11:05:00,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:00,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:00,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:00,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:00,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999004104] [2022-01-18 11:05:00,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999004104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:00,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:00,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:00,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153690958] [2022-01-18 11:05:00,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:00,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:00,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:00,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:00,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:00,365 INFO L87 Difference]: Start difference. First operand 8998 states and 24303 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:00,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:00,822 INFO L93 Difference]: Finished difference Result 11534 states and 31102 transitions. [2022-01-18 11:05:00,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:05:00,822 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:00,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:00,838 INFO L225 Difference]: With dead ends: 11534 [2022-01-18 11:05:00,838 INFO L226 Difference]: Without dead ends: 11049 [2022-01-18 11:05:00,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=1017, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:05:00,838 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 214 mSDsluCounter, 3015 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 3267 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:00,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 3267 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:00,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11049 states. [2022-01-18 11:05:00,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11049 to 9010. [2022-01-18 11:05:00,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.700854700854701) internal successors, (24332), 9009 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:00,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-01-18 11:05:00,959 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-01-18 11:05:00,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:00,960 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-01-18 11:05:00,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:00,960 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-01-18 11:05:00,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:00,969 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:00,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:00,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-01-18 11:05:00,970 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:00,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:00,970 INFO L85 PathProgramCache]: Analyzing trace with hash 149887318, now seen corresponding path program 62 times [2022-01-18 11:05:00,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:00,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756493232] [2022-01-18 11:05:00,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:00,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:01,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:01,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:01,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756493232] [2022-01-18 11:05:01,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756493232] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:01,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:01,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:01,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205624747] [2022-01-18 11:05:01,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:01,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:01,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:01,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:01,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:01,091 INFO L87 Difference]: Start difference. First operand 9010 states and 24332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:01,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:01,595 INFO L93 Difference]: Finished difference Result 11492 states and 30991 transitions. [2022-01-18 11:05:01,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:01,595 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:01,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:01,610 INFO L225 Difference]: With dead ends: 11492 [2022-01-18 11:05:01,611 INFO L226 Difference]: Without dead ends: 11006 [2022-01-18 11:05:01,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=338, Invalid=1144, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:05:01,611 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 200 mSDsluCounter, 3166 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 3425 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:01,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 3425 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:01,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11006 states. [2022-01-18 11:05:01,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11006 to 9006. [2022-01-18 11:05:01,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7008328706274294) internal successors, (24321), 9005 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:01,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-01-18 11:05:01,751 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-01-18 11:05:01,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:01,751 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-01-18 11:05:01,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:01,751 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-01-18 11:05:01,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:01,763 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:01,763 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:01,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-01-18 11:05:01,763 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:01,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:01,763 INFO L85 PathProgramCache]: Analyzing trace with hash 850574874, now seen corresponding path program 63 times [2022-01-18 11:05:01,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:01,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202163700] [2022-01-18 11:05:01,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:01,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:01,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:01,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:01,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202163700] [2022-01-18 11:05:01,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202163700] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:01,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:01,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:01,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596860092] [2022-01-18 11:05:01,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:01,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:01,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:01,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:01,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:01,887 INFO L87 Difference]: Start difference. First operand 9006 states and 24321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:02,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:02,582 INFO L93 Difference]: Finished difference Result 11620 states and 31323 transitions. [2022-01-18 11:05:02,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:05:02,583 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:02,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:02,602 INFO L225 Difference]: With dead ends: 11620 [2022-01-18 11:05:02,602 INFO L226 Difference]: Without dead ends: 11094 [2022-01-18 11:05:02,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=478, Invalid=1502, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:05:02,603 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 269 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:02,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 2964 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:02,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11094 states. [2022-01-18 11:05:02,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11094 to 9002. [2022-01-18 11:05:02,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700811020997667) internal successors, (24310), 9001 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:02,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-01-18 11:05:02,743 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-01-18 11:05:02,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:02,743 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-01-18 11:05:02,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:02,743 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-01-18 11:05:02,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:02,754 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:02,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:02,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-01-18 11:05:02,754 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:02,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:02,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1928262902, now seen corresponding path program 64 times [2022-01-18 11:05:02,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:02,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058372627] [2022-01-18 11:05:02,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:02,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:02,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:02,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:02,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058372627] [2022-01-18 11:05:02,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058372627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:02,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:02,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:02,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987527736] [2022-01-18 11:05:02,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:02,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:02,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:02,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:02,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:02,869 INFO L87 Difference]: Start difference. First operand 9002 states and 24310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:03,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:03,426 INFO L93 Difference]: Finished difference Result 11622 states and 31315 transitions. [2022-01-18 11:05:03,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:05:03,427 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:03,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:03,442 INFO L225 Difference]: With dead ends: 11622 [2022-01-18 11:05:03,442 INFO L226 Difference]: Without dead ends: 11094 [2022-01-18 11:05:03,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1440, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:05:03,442 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 271 mSDsluCounter, 3308 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:03,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 3555 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:03,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11094 states. [2022-01-18 11:05:03,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11094 to 9006. [2022-01-18 11:05:03,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:03,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-01-18 11:05:03,560 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-01-18 11:05:03,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:03,561 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-01-18 11:05:03,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:03,561 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-01-18 11:05:03,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:03,570 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:03,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:03,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-01-18 11:05:03,570 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:03,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:03,571 INFO L85 PathProgramCache]: Analyzing trace with hash -579769440, now seen corresponding path program 65 times [2022-01-18 11:05:03,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:03,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710782919] [2022-01-18 11:05:03,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:03,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:03,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:03,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:03,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710782919] [2022-01-18 11:05:03,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710782919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:03,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:03,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:03,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795258116] [2022-01-18 11:05:03,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:03,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:03,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:03,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:03,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:03,713 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:04,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:04,244 INFO L93 Difference]: Finished difference Result 11474 states and 30929 transitions. [2022-01-18 11:05:04,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:04,244 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:04,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:04,258 INFO L225 Difference]: With dead ends: 11474 [2022-01-18 11:05:04,258 INFO L226 Difference]: Without dead ends: 10989 [2022-01-18 11:05:04,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:05:04,259 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 220 mSDsluCounter, 2846 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 3105 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:04,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 3105 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:04,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10989 states. [2022-01-18 11:05:04,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10989 to 9010. [2022-01-18 11:05:04,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6999666999667) internal successors, (24324), 9009 states have internal predecessors, (24324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:04,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24324 transitions. [2022-01-18 11:05:04,409 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24324 transitions. Word has length 109 [2022-01-18 11:05:04,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:04,409 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24324 transitions. [2022-01-18 11:05:04,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:04,409 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24324 transitions. [2022-01-18 11:05:04,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:04,419 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:04,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:04,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-01-18 11:05:04,420 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:04,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:04,420 INFO L85 PathProgramCache]: Analyzing trace with hash 101851214, now seen corresponding path program 66 times [2022-01-18 11:05:04,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:04,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151460139] [2022-01-18 11:05:04,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:04,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:04,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:04,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:04,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151460139] [2022-01-18 11:05:04,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151460139] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:04,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:04,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:04,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850978284] [2022-01-18 11:05:04,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:04,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:04,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:04,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:04,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:04,533 INFO L87 Difference]: Start difference. First operand 9010 states and 24324 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:04,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:04,993 INFO L93 Difference]: Finished difference Result 11392 states and 30708 transitions. [2022-01-18 11:05:04,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:05:04,994 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:04,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:05,009 INFO L225 Difference]: With dead ends: 11392 [2022-01-18 11:05:05,009 INFO L226 Difference]: Without dead ends: 10894 [2022-01-18 11:05:05,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1086, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:05:05,010 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 198 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 3238 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:05,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 3238 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:05,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10894 states. [2022-01-18 11:05:05,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10894 to 8994. [2022-01-18 11:05:05,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8993 states have (on average 2.7012120538196376) internal successors, (24292), 8993 states have internal predecessors, (24292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:05,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24292 transitions. [2022-01-18 11:05:05,134 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24292 transitions. Word has length 109 [2022-01-18 11:05:05,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:05,134 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24292 transitions. [2022-01-18 11:05:05,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:05,134 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24292 transitions. [2022-01-18 11:05:05,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:05,144 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:05,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:05,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-01-18 11:05:05,145 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:05,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:05,145 INFO L85 PathProgramCache]: Analyzing trace with hash 550210976, now seen corresponding path program 67 times [2022-01-18 11:05:05,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:05,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969063093] [2022-01-18 11:05:05,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:05,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:05,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:05,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:05,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969063093] [2022-01-18 11:05:05,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969063093] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:05,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:05,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:05,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297970120] [2022-01-18 11:05:05,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:05,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:05,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:05,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:05,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:05,260 INFO L87 Difference]: Start difference. First operand 8994 states and 24292 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:05,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:05,731 INFO L93 Difference]: Finished difference Result 11410 states and 30761 transitions. [2022-01-18 11:05:05,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:05:05,731 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:05,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:05,748 INFO L225 Difference]: With dead ends: 11410 [2022-01-18 11:05:05,748 INFO L226 Difference]: Without dead ends: 10925 [2022-01-18 11:05:05,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=1022, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:05:05,749 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 209 mSDsluCounter, 3010 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:05,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 3261 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:05,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10925 states. [2022-01-18 11:05:05,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10925 to 9010. [2022-01-18 11:05:05,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.700854700854701) internal successors, (24332), 9009 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:05,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-01-18 11:05:05,886 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-01-18 11:05:05,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:05,886 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-01-18 11:05:05,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:05,886 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-01-18 11:05:05,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:05,896 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:05,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:05,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-01-18 11:05:05,896 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:05,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:05,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1231831630, now seen corresponding path program 68 times [2022-01-18 11:05:05,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:05,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369026437] [2022-01-18 11:05:05,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:05,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:06,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:06,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:06,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369026437] [2022-01-18 11:05:06,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369026437] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:06,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:06,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:06,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194367154] [2022-01-18 11:05:06,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:06,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:06,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:06,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:06,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:06,045 INFO L87 Difference]: Start difference. First operand 9010 states and 24332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:06,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:06,510 INFO L93 Difference]: Finished difference Result 11368 states and 30650 transitions. [2022-01-18 11:05:06,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:06,511 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:06,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:06,525 INFO L225 Difference]: With dead ends: 11368 [2022-01-18 11:05:06,525 INFO L226 Difference]: Without dead ends: 10882 [2022-01-18 11:05:06,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=343, Invalid=1139, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:05:06,525 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 205 mSDsluCounter, 2821 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 3085 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:06,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 3085 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:06,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10882 states. [2022-01-18 11:05:06,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10882 to 9006. [2022-01-18 11:05:06,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7008328706274294) internal successors, (24321), 9005 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:06,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-01-18 11:05:06,641 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-01-18 11:05:06,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:06,642 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-01-18 11:05:06,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:06,642 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-01-18 11:05:06,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:06,651 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:06,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:06,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-01-18 11:05:06,652 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:06,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:06,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1932519186, now seen corresponding path program 69 times [2022-01-18 11:05:06,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:06,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727738903] [2022-01-18 11:05:06,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:06,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:06,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:06,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:06,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727738903] [2022-01-18 11:05:06,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727738903] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:06,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:06,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:06,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737590248] [2022-01-18 11:05:06,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:06,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:06,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:06,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:06,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:06,784 INFO L87 Difference]: Start difference. First operand 9006 states and 24321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:07,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:07,366 INFO L93 Difference]: Finished difference Result 11496 states and 30982 transitions. [2022-01-18 11:05:07,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:05:07,367 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:07,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:07,381 INFO L225 Difference]: With dead ends: 11496 [2022-01-18 11:05:07,381 INFO L226 Difference]: Without dead ends: 10970 [2022-01-18 11:05:07,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=467, Invalid=1425, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:05:07,382 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 267 mSDsluCounter, 3049 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 3313 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:07,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 3313 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:07,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10970 states. [2022-01-18 11:05:07,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10970 to 9002. [2022-01-18 11:05:07,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700811020997667) internal successors, (24310), 9001 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:07,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-01-18 11:05:07,500 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-01-18 11:05:07,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:07,501 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-01-18 11:05:07,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:07,501 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-01-18 11:05:07,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:07,511 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:07,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:07,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-01-18 11:05:07,511 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:07,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:07,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1284760082, now seen corresponding path program 70 times [2022-01-18 11:05:07,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:07,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601140228] [2022-01-18 11:05:07,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:07,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:07,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:07,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:07,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601140228] [2022-01-18 11:05:07,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601140228] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:07,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:07,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:07,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182196968] [2022-01-18 11:05:07,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:07,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:07,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:07,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:07,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:07,642 INFO L87 Difference]: Start difference. First operand 9002 states and 24310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:08,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:08,250 INFO L93 Difference]: Finished difference Result 11578 states and 31194 transitions. [2022-01-18 11:05:08,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:05:08,250 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:08,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:08,265 INFO L225 Difference]: With dead ends: 11578 [2022-01-18 11:05:08,265 INFO L226 Difference]: Without dead ends: 11050 [2022-01-18 11:05:08,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=460, Invalid=1432, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:05:08,266 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 268 mSDsluCounter, 2845 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:08,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 3104 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:08,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11050 states. [2022-01-18 11:05:08,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11050 to 9006. [2022-01-18 11:05:08,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:08,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-01-18 11:05:08,383 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-01-18 11:05:08,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:08,383 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-01-18 11:05:08,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:08,383 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-01-18 11:05:08,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:08,393 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:08,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:08,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-01-18 11:05:08,393 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:08,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:08,393 INFO L85 PathProgramCache]: Analyzing trace with hash 502174872, now seen corresponding path program 71 times [2022-01-18 11:05:08,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:08,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990545841] [2022-01-18 11:05:08,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:08,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:08,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:08,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:08,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990545841] [2022-01-18 11:05:08,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990545841] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:08,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:08,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:08,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424243761] [2022-01-18 11:05:08,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:08,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:08,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:08,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:08,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:08,527 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:08,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:08,992 INFO L93 Difference]: Finished difference Result 11414 states and 30764 transitions. [2022-01-18 11:05:08,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:08,992 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:08,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:09,007 INFO L225 Difference]: With dead ends: 11414 [2022-01-18 11:05:09,007 INFO L226 Difference]: Without dead ends: 10929 [2022-01-18 11:05:09,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:05:09,008 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 216 mSDsluCounter, 2845 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:09,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 3104 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:09,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10929 states. [2022-01-18 11:05:09,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10929 to 9010. [2022-01-18 11:05:09,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6999666999667) internal successors, (24324), 9009 states have internal predecessors, (24324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:09,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24324 transitions. [2022-01-18 11:05:09,126 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24324 transitions. Word has length 109 [2022-01-18 11:05:09,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:09,126 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24324 transitions. [2022-01-18 11:05:09,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:09,127 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24324 transitions. [2022-01-18 11:05:09,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:09,136 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:09,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:09,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-01-18 11:05:09,136 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:09,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:09,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1183795526, now seen corresponding path program 72 times [2022-01-18 11:05:09,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:09,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665927077] [2022-01-18 11:05:09,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:09,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:09,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:09,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:09,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665927077] [2022-01-18 11:05:09,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665927077] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:09,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:09,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:09,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226030807] [2022-01-18 11:05:09,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:09,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:09,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:09,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:09,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:09,254 INFO L87 Difference]: Start difference. First operand 9010 states and 24324 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:09,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:09,714 INFO L93 Difference]: Finished difference Result 11348 states and 30587 transitions. [2022-01-18 11:05:09,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:05:09,714 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:09,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:09,728 INFO L225 Difference]: With dead ends: 11348 [2022-01-18 11:05:09,728 INFO L226 Difference]: Without dead ends: 10854 [2022-01-18 11:05:09,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1081, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:05:09,729 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 194 mSDsluCounter, 3152 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 3408 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:09,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 3408 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:09,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10854 states. [2022-01-18 11:05:09,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10854 to 8998. [2022-01-18 11:05:09,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7007891519395355) internal successors, (24299), 8997 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:09,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24299 transitions. [2022-01-18 11:05:09,861 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24299 transitions. Word has length 109 [2022-01-18 11:05:09,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:09,861 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24299 transitions. [2022-01-18 11:05:09,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:09,861 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24299 transitions. [2022-01-18 11:05:09,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:09,871 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:09,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:09,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-01-18 11:05:09,871 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:09,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:09,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1506729378, now seen corresponding path program 73 times [2022-01-18 11:05:09,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:09,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319099438] [2022-01-18 11:05:09,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:09,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:09,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:09,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:10,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319099438] [2022-01-18 11:05:10,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319099438] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:10,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:10,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:10,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274226827] [2022-01-18 11:05:10,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:10,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:10,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:10,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:10,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:10,001 INFO L87 Difference]: Start difference. First operand 8998 states and 24299 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:10,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:10,721 INFO L93 Difference]: Finished difference Result 11491 states and 30936 transitions. [2022-01-18 11:05:10,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:05:10,721 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:10,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:10,735 INFO L225 Difference]: With dead ends: 11491 [2022-01-18 11:05:10,735 INFO L226 Difference]: Without dead ends: 10920 [2022-01-18 11:05:10,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=611, Invalid=1839, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 11:05:10,736 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 322 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 3644 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:10,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 3644 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:10,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10920 states. [2022-01-18 11:05:10,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10920 to 9002. [2022-01-18 11:05:10,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:10,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-01-18 11:05:10,862 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-01-18 11:05:10,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:10,862 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-01-18 11:05:10,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:10,862 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-01-18 11:05:10,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:10,872 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:10,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:10,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-01-18 11:05:10,872 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:10,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:10,872 INFO L85 PathProgramCache]: Analyzing trace with hash -998675464, now seen corresponding path program 74 times [2022-01-18 11:05:10,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:10,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305522906] [2022-01-18 11:05:10,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:10,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:10,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:10,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:10,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305522906] [2022-01-18 11:05:10,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305522906] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:10,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:10,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:10,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044335221] [2022-01-18 11:05:10,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:10,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:10,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:10,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:10,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:10,989 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:11,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:11,557 INFO L93 Difference]: Finished difference Result 11478 states and 30915 transitions. [2022-01-18 11:05:11,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:05:11,557 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:11,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:11,572 INFO L225 Difference]: With dead ends: 11478 [2022-01-18 11:05:11,573 INFO L226 Difference]: Without dead ends: 10950 [2022-01-18 11:05:11,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=475, Invalid=1595, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:05:11,573 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 271 mSDsluCounter, 3134 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 3388 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:11,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 3388 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:11,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10950 states. [2022-01-18 11:05:11,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10950 to 9006. [2022-01-18 11:05:11,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:11,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-01-18 11:05:11,690 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-01-18 11:05:11,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:11,690 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-01-18 11:05:11,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:11,690 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-01-18 11:05:11,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:11,700 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:11,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:11,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-01-18 11:05:11,700 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:11,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:11,700 INFO L85 PathProgramCache]: Analyzing trace with hash 788259490, now seen corresponding path program 75 times [2022-01-18 11:05:11,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:11,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86957727] [2022-01-18 11:05:11,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:11,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:11,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:11,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:11,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86957727] [2022-01-18 11:05:11,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86957727] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:11,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:11,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:11,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750996440] [2022-01-18 11:05:11,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:11,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:11,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:11,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:11,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:11,813 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:12,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:12,273 INFO L93 Difference]: Finished difference Result 11314 states and 30485 transitions. [2022-01-18 11:05:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:12,273 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:12,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:12,331 INFO L225 Difference]: With dead ends: 11314 [2022-01-18 11:05:12,331 INFO L226 Difference]: Without dead ends: 10829 [2022-01-18 11:05:12,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:05:12,332 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 208 mSDsluCounter, 2864 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 3124 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:12,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 3124 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:12,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10829 states. [2022-01-18 11:05:12,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10829 to 9010. [2022-01-18 11:05:12,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:12,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-01-18 11:05:12,431 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-01-18 11:05:12,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:12,431 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-01-18 11:05:12,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:12,431 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-01-18 11:05:12,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:12,441 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:12,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:12,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-01-18 11:05:12,441 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:12,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:12,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1469880144, now seen corresponding path program 76 times [2022-01-18 11:05:12,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:12,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704811578] [2022-01-18 11:05:12,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:12,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:12,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:12,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:12,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704811578] [2022-01-18 11:05:12,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704811578] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:12,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:12,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:12,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107781039] [2022-01-18 11:05:12,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:12,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:12,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:12,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:12,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:12,562 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:13,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:13,018 INFO L93 Difference]: Finished difference Result 11248 states and 30308 transitions. [2022-01-18 11:05:13,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:05:13,019 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:13,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:13,034 INFO L225 Difference]: With dead ends: 11248 [2022-01-18 11:05:13,034 INFO L226 Difference]: Without dead ends: 10746 [2022-01-18 11:05:13,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:05:13,034 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 196 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 3091 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:13,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 3091 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:13,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10746 states. [2022-01-18 11:05:13,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10746 to 8990. [2022-01-18 11:05:13,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8990 states, 8989 states have (on average 2.7011903437534763) internal successors, (24281), 8989 states have internal predecessors, (24281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:13,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8990 states to 8990 states and 24281 transitions. [2022-01-18 11:05:13,162 INFO L78 Accepts]: Start accepts. Automaton has 8990 states and 24281 transitions. Word has length 109 [2022-01-18 11:05:13,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:13,162 INFO L470 AbstractCegarLoop]: Abstraction has 8990 states and 24281 transitions. [2022-01-18 11:05:13,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:13,162 INFO L276 IsEmpty]: Start isEmpty. Operand 8990 states and 24281 transitions. [2022-01-18 11:05:13,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:13,172 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:13,172 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:13,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-01-18 11:05:13,172 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:13,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:13,173 INFO L85 PathProgramCache]: Analyzing trace with hash 457042722, now seen corresponding path program 77 times [2022-01-18 11:05:13,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:13,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993640055] [2022-01-18 11:05:13,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:13,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:13,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:13,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:13,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993640055] [2022-01-18 11:05:13,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993640055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:13,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:13,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:13,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868536745] [2022-01-18 11:05:13,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:13,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:13,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:13,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:13,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:13,304 INFO L87 Difference]: Start difference. First operand 8990 states and 24281 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:13,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:13,738 INFO L93 Difference]: Finished difference Result 11318 states and 30508 transitions. [2022-01-18 11:05:13,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:05:13,738 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:13,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:13,754 INFO L225 Difference]: With dead ends: 11318 [2022-01-18 11:05:13,754 INFO L226 Difference]: Without dead ends: 10833 [2022-01-18 11:05:13,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:05:13,754 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 213 mSDsluCounter, 2659 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:13,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2916 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:13,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10833 states. [2022-01-18 11:05:13,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10833 to 9010. [2022-01-18 11:05:13,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.700854700854701) internal successors, (24332), 9009 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:13,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-01-18 11:05:13,884 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-01-18 11:05:13,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:13,884 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-01-18 11:05:13,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:13,885 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-01-18 11:05:13,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:13,895 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:13,895 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:13,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-01-18 11:05:13,895 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:13,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:13,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1138663376, now seen corresponding path program 78 times [2022-01-18 11:05:13,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:13,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749372498] [2022-01-18 11:05:13,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:13,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:14,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:14,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:14,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749372498] [2022-01-18 11:05:14,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749372498] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:14,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:14,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:14,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767370493] [2022-01-18 11:05:14,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:14,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:14,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:14,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:14,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:14,014 INFO L87 Difference]: Start difference. First operand 9010 states and 24332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:14,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:14,481 INFO L93 Difference]: Finished difference Result 11284 states and 30419 transitions. [2022-01-18 11:05:14,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:14,482 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:14,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:14,496 INFO L225 Difference]: With dead ends: 11284 [2022-01-18 11:05:14,496 INFO L226 Difference]: Without dead ends: 10798 [2022-01-18 11:05:14,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1153, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:05:14,497 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 198 mSDsluCounter, 3000 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 3260 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:14,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 3260 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:14,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10798 states. [2022-01-18 11:05:14,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10798 to 9006. [2022-01-18 11:05:14,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7008328706274294) internal successors, (24321), 9005 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:14,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-01-18 11:05:14,615 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-01-18 11:05:14,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:14,615 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-01-18 11:05:14,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:14,616 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-01-18 11:05:14,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:14,626 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:14,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:14,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-01-18 11:05:14,626 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:14,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:14,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1839350932, now seen corresponding path program 79 times [2022-01-18 11:05:14,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:14,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826395344] [2022-01-18 11:05:14,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:14,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:14,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:14,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:14,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826395344] [2022-01-18 11:05:14,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826395344] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:14,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:14,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:14,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722247020] [2022-01-18 11:05:14,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:14,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:14,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:14,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:14,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:14,740 INFO L87 Difference]: Start difference. First operand 9006 states and 24321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:15,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:15,318 INFO L93 Difference]: Finished difference Result 11320 states and 30514 transitions. [2022-01-18 11:05:15,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:05:15,319 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:15,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:15,334 INFO L225 Difference]: With dead ends: 11320 [2022-01-18 11:05:15,334 INFO L226 Difference]: Without dead ends: 10794 [2022-01-18 11:05:15,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=481, Invalid=1589, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:05:15,335 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 251 mSDsluCounter, 2542 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 2817 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:15,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 2817 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:15,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10794 states. [2022-01-18 11:05:15,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10794 to 9002. [2022-01-18 11:05:15,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700811020997667) internal successors, (24310), 9001 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:15,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-01-18 11:05:15,456 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-01-18 11:05:15,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:15,456 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-01-18 11:05:15,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:15,456 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-01-18 11:05:15,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:15,466 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:15,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:15,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-01-18 11:05:15,467 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:15,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:15,467 INFO L85 PathProgramCache]: Analyzing trace with hash -304725532, now seen corresponding path program 80 times [2022-01-18 11:05:15,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:15,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561717621] [2022-01-18 11:05:15,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:15,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:15,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:15,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:15,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561717621] [2022-01-18 11:05:15,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561717621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:15,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:15,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:15,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471555712] [2022-01-18 11:05:15,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:15,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:15,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:15,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:15,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:15,588 INFO L87 Difference]: Start difference. First operand 9002 states and 24310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:16,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:16,313 INFO L93 Difference]: Finished difference Result 11548 states and 31113 transitions. [2022-01-18 11:05:16,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:05:16,313 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:16,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:16,327 INFO L225 Difference]: With dead ends: 11548 [2022-01-18 11:05:16,328 INFO L226 Difference]: Without dead ends: 10982 [2022-01-18 11:05:16,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=665, Invalid=2091, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:05:16,328 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 328 mSDsluCounter, 2803 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 3080 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:16,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 3080 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:16,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10982 states. [2022-01-18 11:05:16,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10982 to 8998. [2022-01-18 11:05:16,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7007891519395355) internal successors, (24299), 8997 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:16,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24299 transitions. [2022-01-18 11:05:16,447 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24299 transitions. Word has length 109 [2022-01-18 11:05:16,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:16,448 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24299 transitions. [2022-01-18 11:05:16,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:16,448 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24299 transitions. [2022-01-18 11:05:16,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:16,457 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:16,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:16,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-01-18 11:05:16,458 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:16,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:16,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1487686952, now seen corresponding path program 81 times [2022-01-18 11:05:16,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:16,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100602964] [2022-01-18 11:05:16,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:16,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:16,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:16,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:16,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100602964] [2022-01-18 11:05:16,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100602964] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:16,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:16,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:16,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658353438] [2022-01-18 11:05:16,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:16,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:16,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:16,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:16,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:16,579 INFO L87 Difference]: Start difference. First operand 8998 states and 24299 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:17,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:17,023 INFO L93 Difference]: Finished difference Result 11294 states and 30438 transitions. [2022-01-18 11:05:17,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:05:17,024 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:17,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:17,038 INFO L225 Difference]: With dead ends: 11294 [2022-01-18 11:05:17,038 INFO L226 Difference]: Without dead ends: 10809 [2022-01-18 11:05:17,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:05:17,039 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 205 mSDsluCounter, 2841 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 3096 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:17,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 3096 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:17,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10809 states. [2022-01-18 11:05:17,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10809 to 9010. [2022-01-18 11:05:17,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:17,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-01-18 11:05:17,162 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-01-18 11:05:17,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:17,162 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-01-18 11:05:17,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:17,162 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-01-18 11:05:17,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:17,173 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:17,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:17,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-01-18 11:05:17,174 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:17,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:17,174 INFO L85 PathProgramCache]: Analyzing trace with hash -2125659690, now seen corresponding path program 82 times [2022-01-18 11:05:17,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:17,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390322604] [2022-01-18 11:05:17,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:17,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:17,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:17,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:17,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390322604] [2022-01-18 11:05:17,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390322604] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:17,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:17,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:17,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412777928] [2022-01-18 11:05:17,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:17,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:17,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:17,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:17,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:17,283 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:17,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:17,752 INFO L93 Difference]: Finished difference Result 11252 states and 30327 transitions. [2022-01-18 11:05:17,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:17,752 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:17,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:17,767 INFO L225 Difference]: With dead ends: 11252 [2022-01-18 11:05:17,767 INFO L226 Difference]: Without dead ends: 10766 [2022-01-18 11:05:17,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1148, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:05:17,768 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 203 mSDsluCounter, 2663 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 2930 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:17,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 2930 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:17,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2022-01-18 11:05:17,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 9006. [2022-01-18 11:05:17,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:17,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-01-18 11:05:17,886 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-01-18 11:05:17,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:17,886 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-01-18 11:05:17,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:17,886 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-01-18 11:05:17,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:17,896 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:17,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:17,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-01-18 11:05:17,896 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:17,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:17,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1424972134, now seen corresponding path program 83 times [2022-01-18 11:05:17,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:17,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859504717] [2022-01-18 11:05:17,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:17,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:18,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:18,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:18,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859504717] [2022-01-18 11:05:18,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859504717] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:18,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:18,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:18,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864464762] [2022-01-18 11:05:18,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:18,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:18,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:18,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:18,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:18,006 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:18,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:18,557 INFO L93 Difference]: Finished difference Result 11420 states and 30769 transitions. [2022-01-18 11:05:18,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:05:18,557 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:18,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:18,572 INFO L225 Difference]: With dead ends: 11420 [2022-01-18 11:05:18,572 INFO L226 Difference]: Without dead ends: 10894 [2022-01-18 11:05:18,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:05:18,573 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 267 mSDsluCounter, 3062 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 3327 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:18,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 3327 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:18,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10894 states. [2022-01-18 11:05:18,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10894 to 9002. [2022-01-18 11:05:18,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:18,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-01-18 11:05:18,693 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-01-18 11:05:18,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:18,693 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-01-18 11:05:18,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:18,693 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-01-18 11:05:18,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:18,703 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:18,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:18,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-01-18 11:05:18,703 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:18,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:18,704 INFO L85 PathProgramCache]: Analyzing trace with hash -347284106, now seen corresponding path program 84 times [2022-01-18 11:05:18,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:18,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354179911] [2022-01-18 11:05:18,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:18,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:18,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:18,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:18,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354179911] [2022-01-18 11:05:18,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354179911] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:18,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:18,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:18,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055168905] [2022-01-18 11:05:18,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:18,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:18,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:18,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:18,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:18,817 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:19,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:19,335 INFO L93 Difference]: Finished difference Result 11338 states and 30530 transitions. [2022-01-18 11:05:19,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:05:19,335 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:19,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:19,349 INFO L225 Difference]: With dead ends: 11338 [2022-01-18 11:05:19,350 INFO L226 Difference]: Without dead ends: 10810 [2022-01-18 11:05:19,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=443, Invalid=1363, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 11:05:19,350 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 265 mSDsluCounter, 2924 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 3179 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:19,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 3179 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:19,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10810 states. [2022-01-18 11:05:19,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10810 to 9006. [2022-01-18 11:05:19,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:19,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-01-18 11:05:19,469 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-01-18 11:05:19,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:19,469 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-01-18 11:05:19,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:19,470 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-01-18 11:05:19,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:19,479 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:19,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:19,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-01-18 11:05:19,480 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:19,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:19,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1439650848, now seen corresponding path program 85 times [2022-01-18 11:05:19,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:19,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278908424] [2022-01-18 11:05:19,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:19,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:19,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:19,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:19,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278908424] [2022-01-18 11:05:19,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278908424] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:19,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:19,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:19,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069795636] [2022-01-18 11:05:19,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:19,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:19,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:19,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:19,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:19,593 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:20,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:20,052 INFO L93 Difference]: Finished difference Result 11238 states and 30276 transitions. [2022-01-18 11:05:20,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:20,053 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:20,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:20,067 INFO L225 Difference]: With dead ends: 11238 [2022-01-18 11:05:20,067 INFO L226 Difference]: Without dead ends: 10753 [2022-01-18 11:05:20,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:05:20,068 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 214 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2937 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:20,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2937 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:20,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10753 states. [2022-01-18 11:05:20,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10753 to 9010. [2022-01-18 11:05:20,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:20,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-01-18 11:05:20,214 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-01-18 11:05:20,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:20,214 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-01-18 11:05:20,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:20,215 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-01-18 11:05:20,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:20,224 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:20,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:20,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-01-18 11:05:20,224 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:20,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:20,225 INFO L85 PathProgramCache]: Analyzing trace with hash 2121271502, now seen corresponding path program 86 times [2022-01-18 11:05:20,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:20,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711488168] [2022-01-18 11:05:20,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:20,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:20,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:20,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:20,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711488168] [2022-01-18 11:05:20,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711488168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:20,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:20,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:20,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322957438] [2022-01-18 11:05:20,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:20,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:20,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:20,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:20,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:20,335 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:20,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:20,773 INFO L93 Difference]: Finished difference Result 11188 states and 30143 transitions. [2022-01-18 11:05:20,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:05:20,773 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:20,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:20,788 INFO L225 Difference]: With dead ends: 11188 [2022-01-18 11:05:20,788 INFO L226 Difference]: Without dead ends: 10690 [2022-01-18 11:05:20,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:05:20,789 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 192 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:20,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 3104 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:20,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10690 states. [2022-01-18 11:05:20,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10690 to 8994. [2022-01-18 11:05:20,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8993 states have (on average 2.70076726342711) internal successors, (24288), 8993 states have internal predecessors, (24288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:20,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24288 transitions. [2022-01-18 11:05:20,911 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24288 transitions. Word has length 109 [2022-01-18 11:05:20,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:20,911 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24288 transitions. [2022-01-18 11:05:20,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:20,912 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24288 transitions. [2022-01-18 11:05:20,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:20,921 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:20,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:20,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-01-18 11:05:20,921 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:20,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:20,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1935686880, now seen corresponding path program 87 times [2022-01-18 11:05:20,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:20,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423223948] [2022-01-18 11:05:20,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:20,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:21,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:21,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:21,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423223948] [2022-01-18 11:05:21,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423223948] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:21,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:21,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:21,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170950767] [2022-01-18 11:05:21,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:21,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:21,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:21,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:21,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:21,033 INFO L87 Difference]: Start difference. First operand 8994 states and 24288 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:21,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:21,465 INFO L93 Difference]: Finished difference Result 11130 states and 29987 transitions. [2022-01-18 11:05:21,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:05:21,465 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:21,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:21,480 INFO L225 Difference]: With dead ends: 11130 [2022-01-18 11:05:21,480 INFO L226 Difference]: Without dead ends: 10645 [2022-01-18 11:05:21,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=292, Invalid=898, Unknown=0, NotChecked=0, Total=1190 [2022-01-18 11:05:21,481 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 198 mSDsluCounter, 3197 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 3440 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:21,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 3440 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:21,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10645 states. [2022-01-18 11:05:21,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10645 to 9010. [2022-01-18 11:05:21,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:21,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-01-18 11:05:21,605 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-01-18 11:05:21,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:21,605 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-01-18 11:05:21,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:21,605 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-01-18 11:05:21,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:21,615 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:21,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:21,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-01-18 11:05:21,615 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:21,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:21,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1677659762, now seen corresponding path program 88 times [2022-01-18 11:05:21,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:21,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599466253] [2022-01-18 11:05:21,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:21,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:21,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:21,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:21,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599466253] [2022-01-18 11:05:21,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599466253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:21,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:21,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:21,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341286965] [2022-01-18 11:05:21,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:21,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:21,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:21,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:21,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:21,729 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:22,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:22,190 INFO L93 Difference]: Finished difference Result 11100 states and 29909 transitions. [2022-01-18 11:05:22,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:22,190 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:22,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:22,204 INFO L225 Difference]: With dead ends: 11100 [2022-01-18 11:05:22,205 INFO L226 Difference]: Without dead ends: 10614 [2022-01-18 11:05:22,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:05:22,205 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 192 mSDsluCounter, 2684 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 2949 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:22,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 2949 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:22,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10614 states. [2022-01-18 11:05:22,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10614 to 9006. [2022-01-18 11:05:22,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:22,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-01-18 11:05:22,328 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-01-18 11:05:22,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:22,328 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-01-18 11:05:22,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:22,328 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-01-18 11:05:22,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:22,338 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:22,338 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:22,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-01-18 11:05:22,338 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:22,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:22,339 INFO L85 PathProgramCache]: Analyzing trace with hash -976972206, now seen corresponding path program 89 times [2022-01-18 11:05:22,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:22,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032068101] [2022-01-18 11:05:22,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:22,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:22,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:22,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:22,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032068101] [2022-01-18 11:05:22,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032068101] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:22,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:22,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:22,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030040906] [2022-01-18 11:05:22,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:22,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:22,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:22,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:22,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:22,458 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:23,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:23,048 INFO L93 Difference]: Finished difference Result 11136 states and 30004 transitions. [2022-01-18 11:05:23,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:05:23,049 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:23,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:23,063 INFO L225 Difference]: With dead ends: 11136 [2022-01-18 11:05:23,063 INFO L226 Difference]: Without dead ends: 10610 [2022-01-18 11:05:23,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:05:23,063 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 246 mSDsluCounter, 2718 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2989 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:23,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2989 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:23,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10610 states. [2022-01-18 11:05:23,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10610 to 9002. [2022-01-18 11:05:23,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:23,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-01-18 11:05:23,180 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-01-18 11:05:23,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:23,180 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-01-18 11:05:23,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:23,180 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-01-18 11:05:23,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:23,190 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:23,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:23,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-01-18 11:05:23,190 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:23,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:23,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1173918626, now seen corresponding path program 90 times [2022-01-18 11:05:23,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:23,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070379774] [2022-01-18 11:05:23,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:23,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:23,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:23,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:23,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070379774] [2022-01-18 11:05:23,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070379774] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:23,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:23,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:23,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653358312] [2022-01-18 11:05:23,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:23,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:23,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:23,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:23,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:23,322 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:24,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:24,113 INFO L93 Difference]: Finished difference Result 11172 states and 30099 transitions. [2022-01-18 11:05:24,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:05:24,113 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:24,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:24,129 INFO L225 Difference]: With dead ends: 11172 [2022-01-18 11:05:24,130 INFO L226 Difference]: Without dead ends: 10606 [2022-01-18 11:05:24,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=672, Invalid=2190, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:05:24,130 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 293 mSDsluCounter, 2888 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 3165 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:24,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 3165 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:24,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10606 states. [2022-01-18 11:05:24,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10606 to 8998. [2022-01-18 11:05:24,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7003445592975437) internal successors, (24295), 8997 states have internal predecessors, (24295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:24,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24295 transitions. [2022-01-18 11:05:24,264 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24295 transitions. Word has length 109 [2022-01-18 11:05:24,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:24,264 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24295 transitions. [2022-01-18 11:05:24,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:24,264 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24295 transitions. [2022-01-18 11:05:24,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:24,274 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:24,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:24,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-01-18 11:05:24,274 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:24,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:24,274 INFO L85 PathProgramCache]: Analyzing trace with hash 2138109974, now seen corresponding path program 91 times [2022-01-18 11:05:24,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:24,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564034345] [2022-01-18 11:05:24,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:24,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:24,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:24,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:24,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564034345] [2022-01-18 11:05:24,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564034345] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:24,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:24,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:24,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142671629] [2022-01-18 11:05:24,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:24,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:24,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:24,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:24,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:24,413 INFO L87 Difference]: Start difference. First operand 8998 states and 24295 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:25,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:25,247 INFO L93 Difference]: Finished difference Result 11284 states and 30371 transitions. [2022-01-18 11:05:25,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:05:25,248 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:25,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:25,262 INFO L225 Difference]: With dead ends: 11284 [2022-01-18 11:05:25,262 INFO L226 Difference]: Without dead ends: 10670 [2022-01-18 11:05:25,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 913 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=793, Invalid=2399, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 11:05:25,263 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 374 mSDsluCounter, 3153 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 3424 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:25,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 3424 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:25,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2022-01-18 11:05:25,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 8986. [2022-01-18 11:05:25,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8986 states, 8985 states have (on average 2.701168614357262) internal successors, (24270), 8985 states have internal predecessors, (24270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:25,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8986 states to 8986 states and 24270 transitions. [2022-01-18 11:05:25,378 INFO L78 Accepts]: Start accepts. Automaton has 8986 states and 24270 transitions. Word has length 109 [2022-01-18 11:05:25,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:25,378 INFO L470 AbstractCegarLoop]: Abstraction has 8986 states and 24270 transitions. [2022-01-18 11:05:25,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:25,378 INFO L276 IsEmpty]: Start isEmpty. Operand 8986 states and 24270 transitions. [2022-01-18 11:05:25,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:25,388 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:25,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:25,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-01-18 11:05:25,388 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:25,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:25,388 INFO L85 PathProgramCache]: Analyzing trace with hash -831958788, now seen corresponding path program 92 times [2022-01-18 11:05:25,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:25,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420921340] [2022-01-18 11:05:25,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:25,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:25,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:25,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:25,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420921340] [2022-01-18 11:05:25,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420921340] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:25,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:25,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:25,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780963961] [2022-01-18 11:05:25,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:25,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:25,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:25,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:25,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:25,510 INFO L87 Difference]: Start difference. First operand 8986 states and 24270 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:25,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:25,951 INFO L93 Difference]: Finished difference Result 11086 states and 29870 transitions. [2022-01-18 11:05:25,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:05:25,952 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:25,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:25,966 INFO L225 Difference]: With dead ends: 11086 [2022-01-18 11:05:25,966 INFO L226 Difference]: Without dead ends: 10601 [2022-01-18 11:05:25,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:05:25,966 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 212 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3443 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:25,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3443 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:25,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10601 states. [2022-01-18 11:05:26,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10601 to 9010. [2022-01-18 11:05:26,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.700854700854701) internal successors, (24332), 9009 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:26,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-01-18 11:05:26,083 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-01-18 11:05:26,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:26,083 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-01-18 11:05:26,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:26,083 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-01-18 11:05:26,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:26,093 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:26,093 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:26,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-01-18 11:05:26,093 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:26,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:26,094 INFO L85 PathProgramCache]: Analyzing trace with hash -150338134, now seen corresponding path program 93 times [2022-01-18 11:05:26,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:26,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945725508] [2022-01-18 11:05:26,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:26,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:26,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:26,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:26,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945725508] [2022-01-18 11:05:26,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945725508] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:26,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:26,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:26,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991067333] [2022-01-18 11:05:26,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:26,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:26,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:26,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:26,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:26,209 INFO L87 Difference]: Start difference. First operand 9010 states and 24332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:26,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:26,691 INFO L93 Difference]: Finished difference Result 11052 states and 29781 transitions. [2022-01-18 11:05:26,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:26,692 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:26,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:26,706 INFO L225 Difference]: With dead ends: 11052 [2022-01-18 11:05:26,706 INFO L226 Difference]: Without dead ends: 10566 [2022-01-18 11:05:26,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:05:26,706 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 199 mSDsluCounter, 3171 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 3430 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:26,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 3430 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:26,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10566 states. [2022-01-18 11:05:26,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10566 to 9006. [2022-01-18 11:05:26,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7008328706274294) internal successors, (24321), 9005 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:26,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-01-18 11:05:26,821 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-01-18 11:05:26,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:26,821 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-01-18 11:05:26,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:26,821 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-01-18 11:05:26,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:26,833 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:26,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:26,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-01-18 11:05:26,834 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:26,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:26,834 INFO L85 PathProgramCache]: Analyzing trace with hash 550349422, now seen corresponding path program 94 times [2022-01-18 11:05:26,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:26,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517566024] [2022-01-18 11:05:26,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:26,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:26,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:26,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:26,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517566024] [2022-01-18 11:05:26,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517566024] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:26,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:26,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:26,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937126611] [2022-01-18 11:05:26,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:26,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:26,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:26,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:26,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:26,952 INFO L87 Difference]: Start difference. First operand 9006 states and 24321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:27,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:27,557 INFO L93 Difference]: Finished difference Result 11088 states and 29876 transitions. [2022-01-18 11:05:27,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:05:27,561 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:27,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:27,575 INFO L225 Difference]: With dead ends: 11088 [2022-01-18 11:05:27,576 INFO L226 Difference]: Without dead ends: 10562 [2022-01-18 11:05:27,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=499, Invalid=1571, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:05:27,576 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 255 mSDsluCounter, 2704 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 2978 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:27,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 2978 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:27,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10562 states. [2022-01-18 11:05:27,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10562 to 9002. [2022-01-18 11:05:27,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700811020997667) internal successors, (24310), 9001 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:27,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-01-18 11:05:27,693 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-01-18 11:05:27,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:27,693 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-01-18 11:05:27,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:27,694 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-01-18 11:05:27,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:27,703 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:27,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:27,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-01-18 11:05:27,703 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:27,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:27,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1593727042, now seen corresponding path program 95 times [2022-01-18 11:05:27,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:27,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88612664] [2022-01-18 11:05:27,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:27,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:27,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:27,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:27,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88612664] [2022-01-18 11:05:27,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88612664] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:27,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:27,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:27,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640726470] [2022-01-18 11:05:27,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:27,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:27,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:27,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:27,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:27,824 INFO L87 Difference]: Start difference. First operand 9002 states and 24310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:28,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:28,575 INFO L93 Difference]: Finished difference Result 11176 states and 30090 transitions. [2022-01-18 11:05:28,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:05:28,575 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:28,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:28,586 INFO L225 Difference]: With dead ends: 11176 [2022-01-18 11:05:28,587 INFO L226 Difference]: Without dead ends: 10610 [2022-01-18 11:05:28,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=651, Invalid=1899, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:05:28,587 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 321 mSDsluCounter, 3275 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:28,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 3542 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:28,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10610 states. [2022-01-18 11:05:28,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10610 to 8998. [2022-01-18 11:05:28,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7007891519395355) internal successors, (24299), 8997 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:28,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24299 transitions. [2022-01-18 11:05:28,690 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24299 transitions. Word has length 109 [2022-01-18 11:05:28,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:28,690 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24299 transitions. [2022-01-18 11:05:28,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:28,690 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24299 transitions. [2022-01-18 11:05:28,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:28,700 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:28,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:28,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-01-18 11:05:28,700 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:28,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:28,701 INFO L85 PathProgramCache]: Analyzing trace with hash 198685442, now seen corresponding path program 96 times [2022-01-18 11:05:28,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:28,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665343770] [2022-01-18 11:05:28,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:28,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:28,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:28,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:28,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665343770] [2022-01-18 11:05:28,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665343770] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:28,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:28,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:28,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368283486] [2022-01-18 11:05:28,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:28,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:28,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:28,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:28,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:28,813 INFO L87 Difference]: Start difference. First operand 8998 states and 24299 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:29,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:29,257 INFO L93 Difference]: Finished difference Result 11150 states and 30042 transitions. [2022-01-18 11:05:29,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:05:29,257 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:29,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:29,271 INFO L225 Difference]: With dead ends: 11150 [2022-01-18 11:05:29,271 INFO L226 Difference]: Without dead ends: 10665 [2022-01-18 11:05:29,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:05:29,272 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 236 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 3426 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:29,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 3426 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:29,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10665 states. [2022-01-18 11:05:29,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10665 to 9010. [2022-01-18 11:05:29,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:29,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-01-18 11:05:29,400 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-01-18 11:05:29,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:29,400 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-01-18 11:05:29,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:29,401 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-01-18 11:05:29,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:29,410 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:29,410 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:29,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-01-18 11:05:29,410 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:29,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:29,411 INFO L85 PathProgramCache]: Analyzing trace with hash 880306096, now seen corresponding path program 97 times [2022-01-18 11:05:29,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:29,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199940000] [2022-01-18 11:05:29,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:29,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:29,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:29,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:29,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:29,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199940000] [2022-01-18 11:05:29,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199940000] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:29,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:29,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:29,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227165412] [2022-01-18 11:05:29,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:29,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:29,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:29,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:29,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:29,556 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:30,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:30,027 INFO L93 Difference]: Finished difference Result 11108 states and 29931 transitions. [2022-01-18 11:05:30,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:30,027 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:30,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:30,041 INFO L225 Difference]: With dead ends: 11108 [2022-01-18 11:05:30,041 INFO L226 Difference]: Without dead ends: 10622 [2022-01-18 11:05:30,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:05:30,042 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 221 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3237 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:30,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3237 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:30,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10622 states. [2022-01-18 11:05:30,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10622 to 9006. [2022-01-18 11:05:30,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:30,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-01-18 11:05:30,156 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-01-18 11:05:30,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:30,156 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-01-18 11:05:30,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:30,156 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-01-18 11:05:30,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:30,165 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:30,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:30,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-01-18 11:05:30,166 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:30,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:30,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1580993652, now seen corresponding path program 98 times [2022-01-18 11:05:30,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:30,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294138460] [2022-01-18 11:05:30,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:30,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:30,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:30,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:30,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294138460] [2022-01-18 11:05:30,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294138460] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:30,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:30,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:30,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936580042] [2022-01-18 11:05:30,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:30,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:30,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:30,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:30,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:30,277 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:30,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:30,819 INFO L93 Difference]: Finished difference Result 11236 states and 30263 transitions. [2022-01-18 11:05:30,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:05:30,819 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:30,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:30,834 INFO L225 Difference]: With dead ends: 11236 [2022-01-18 11:05:30,834 INFO L226 Difference]: Without dead ends: 10710 [2022-01-18 11:05:30,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:05:30,834 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 294 mSDsluCounter, 3021 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 3281 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:30,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 3281 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:30,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10710 states. [2022-01-18 11:05:30,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10710 to 9002. [2022-01-18 11:05:30,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:30,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-01-18 11:05:30,951 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-01-18 11:05:30,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:30,951 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-01-18 11:05:30,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:30,952 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-01-18 11:05:30,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:30,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:30,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:30,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-01-18 11:05:30,961 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:30,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:30,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1636285616, now seen corresponding path program 99 times [2022-01-18 11:05:30,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:30,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809713116] [2022-01-18 11:05:30,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:30,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:31,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:31,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:31,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809713116] [2022-01-18 11:05:31,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809713116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:31,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:31,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:31,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819916257] [2022-01-18 11:05:31,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:31,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:31,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:31,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:31,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:31,082 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:31,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:31,659 INFO L93 Difference]: Finished difference Result 11238 states and 30255 transitions. [2022-01-18 11:05:31,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:05:31,659 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:31,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:31,673 INFO L225 Difference]: With dead ends: 11238 [2022-01-18 11:05:31,673 INFO L226 Difference]: Without dead ends: 10710 [2022-01-18 11:05:31,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=438, Invalid=1368, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 11:05:31,674 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 284 mSDsluCounter, 3287 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 3531 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:31,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 3531 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:31,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10710 states. [2022-01-18 11:05:31,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10710 to 9006. [2022-01-18 11:05:31,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:31,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-01-18 11:05:31,790 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-01-18 11:05:31,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:31,790 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-01-18 11:05:31,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:31,791 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-01-18 11:05:31,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:31,800 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:31,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:31,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-01-18 11:05:31,801 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:31,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:31,801 INFO L85 PathProgramCache]: Analyzing trace with hash 150649338, now seen corresponding path program 100 times [2022-01-18 11:05:31,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:31,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120064565] [2022-01-18 11:05:31,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:31,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:31,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:31,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:31,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120064565] [2022-01-18 11:05:31,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120064565] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:31,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:31,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:31,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190527967] [2022-01-18 11:05:31,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:31,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:31,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:31,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:31,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:31,915 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:32,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:32,373 INFO L93 Difference]: Finished difference Result 11090 states and 29869 transitions. [2022-01-18 11:05:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:32,373 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:32,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:32,387 INFO L225 Difference]: With dead ends: 11090 [2022-01-18 11:05:32,387 INFO L226 Difference]: Without dead ends: 10605 [2022-01-18 11:05:32,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=1079, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:05:32,388 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 222 mSDsluCounter, 3007 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 3259 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:32,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 3259 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:32,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10605 states. [2022-01-18 11:05:32,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10605 to 9010. [2022-01-18 11:05:32,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:32,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-01-18 11:05:32,503 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-01-18 11:05:32,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:32,503 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-01-18 11:05:32,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:32,503 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-01-18 11:05:32,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:32,513 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:32,513 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:32,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-01-18 11:05:32,513 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:32,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:32,513 INFO L85 PathProgramCache]: Analyzing trace with hash 832269992, now seen corresponding path program 101 times [2022-01-18 11:05:32,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:32,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010906849] [2022-01-18 11:05:32,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:32,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:32,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:32,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:32,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010906849] [2022-01-18 11:05:32,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010906849] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:32,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:32,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:32,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747013427] [2022-01-18 11:05:32,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:32,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:32,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:32,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:32,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:32,628 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:33,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:33,076 INFO L93 Difference]: Finished difference Result 11008 states and 29648 transitions. [2022-01-18 11:05:33,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:05:33,076 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:33,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:33,090 INFO L225 Difference]: With dead ends: 11008 [2022-01-18 11:05:33,090 INFO L226 Difference]: Without dead ends: 10510 [2022-01-18 11:05:33,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:05:33,090 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 201 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 3215 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:33,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 3215 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:33,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10510 states. [2022-01-18 11:05:33,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10510 to 8994. [2022-01-18 11:05:33,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8993 states have (on average 2.70076726342711) internal successors, (24288), 8993 states have internal predecessors, (24288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:33,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24288 transitions. [2022-01-18 11:05:33,204 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24288 transitions. Word has length 109 [2022-01-18 11:05:33,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:33,204 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24288 transitions. [2022-01-18 11:05:33,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:33,204 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24288 transitions. [2022-01-18 11:05:33,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:33,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:33,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:33,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-01-18 11:05:33,214 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:33,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:33,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1280629754, now seen corresponding path program 102 times [2022-01-18 11:05:33,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:33,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831539645] [2022-01-18 11:05:33,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:33,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:33,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:33,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:33,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831539645] [2022-01-18 11:05:33,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831539645] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:33,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:33,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:33,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921909790] [2022-01-18 11:05:33,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:33,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:33,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:33,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:33,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:33,334 INFO L87 Difference]: Start difference. First operand 8994 states and 24288 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:33,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:33,775 INFO L93 Difference]: Finished difference Result 11186 states and 30141 transitions. [2022-01-18 11:05:33,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:05:33,775 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:33,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:33,789 INFO L225 Difference]: With dead ends: 11186 [2022-01-18 11:05:33,790 INFO L226 Difference]: Without dead ends: 10701 [2022-01-18 11:05:33,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=301, Invalid=959, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:05:33,790 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 237 mSDsluCounter, 2728 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:33,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 2980 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:33,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2022-01-18 11:05:33,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 9010. [2022-01-18 11:05:33,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:33,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-01-18 11:05:33,908 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-01-18 11:05:33,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:33,908 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-01-18 11:05:33,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:33,908 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-01-18 11:05:33,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:33,917 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:33,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:33,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-01-18 11:05:33,918 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:33,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:33,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1962250408, now seen corresponding path program 103 times [2022-01-18 11:05:33,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:33,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103513249] [2022-01-18 11:05:33,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:33,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:34,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:34,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:34,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103513249] [2022-01-18 11:05:34,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103513249] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:34,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:34,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:34,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687231335] [2022-01-18 11:05:34,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:34,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:34,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:34,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:34,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:34,031 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:34,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:34,504 INFO L93 Difference]: Finished difference Result 11144 states and 30030 transitions. [2022-01-18 11:05:34,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:34,504 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:34,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:34,519 INFO L225 Difference]: With dead ends: 11144 [2022-01-18 11:05:34,520 INFO L226 Difference]: Without dead ends: 10658 [2022-01-18 11:05:34,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:05:34,520 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 221 mSDsluCounter, 2964 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3221 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:34,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3221 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:34,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10658 states. [2022-01-18 11:05:34,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10658 to 9006. [2022-01-18 11:05:34,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:34,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-01-18 11:05:34,643 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-01-18 11:05:34,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:34,643 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-01-18 11:05:34,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:34,644 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-01-18 11:05:34,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:34,653 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:34,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:34,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-01-18 11:05:34,654 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:34,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:34,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1632029332, now seen corresponding path program 104 times [2022-01-18 11:05:34,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:34,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380421236] [2022-01-18 11:05:34,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:34,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:34,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:34,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:34,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380421236] [2022-01-18 11:05:34,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380421236] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:34,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:34,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:34,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012831122] [2022-01-18 11:05:34,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:34,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:34,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:34,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:34,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:34,771 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:35,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:35,387 INFO L93 Difference]: Finished difference Result 11252 states and 30307 transitions. [2022-01-18 11:05:35,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:05:35,388 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:35,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:35,404 INFO L225 Difference]: With dead ends: 11252 [2022-01-18 11:05:35,404 INFO L226 Difference]: Without dead ends: 10726 [2022-01-18 11:05:35,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=476, Invalid=1416, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:05:35,405 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 291 mSDsluCounter, 3007 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 3265 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:35,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 3265 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:35,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10726 states. [2022-01-18 11:05:35,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10726 to 9002. [2022-01-18 11:05:35,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:35,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-01-18 11:05:35,532 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-01-18 11:05:35,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:35,532 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-01-18 11:05:35,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:35,532 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-01-18 11:05:35,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:35,546 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:35,546 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:35,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-01-18 11:05:35,546 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:35,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:35,546 INFO L85 PathProgramCache]: Analyzing trace with hash -554341304, now seen corresponding path program 105 times [2022-01-18 11:05:35,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:35,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23750902] [2022-01-18 11:05:35,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:35,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:35,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:35,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:35,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23750902] [2022-01-18 11:05:35,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23750902] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:35,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:35,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:35,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880015518] [2022-01-18 11:05:35,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:35,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:35,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:35,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:35,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:35,673 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:36,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:36,249 INFO L93 Difference]: Finished difference Result 11350 states and 30563 transitions. [2022-01-18 11:05:36,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:05:36,249 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:36,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:36,263 INFO L225 Difference]: With dead ends: 11350 [2022-01-18 11:05:36,263 INFO L226 Difference]: Without dead ends: 10822 [2022-01-18 11:05:36,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1528, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:05:36,264 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 294 mSDsluCounter, 3294 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 3539 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:36,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 3539 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:36,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10822 states. [2022-01-18 11:05:36,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10822 to 9006. [2022-01-18 11:05:36,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:36,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-01-18 11:05:36,415 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-01-18 11:05:36,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:36,416 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-01-18 11:05:36,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:36,416 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-01-18 11:05:36,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:36,428 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:36,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:36,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-01-18 11:05:36,428 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:36,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:36,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1232593650, now seen corresponding path program 106 times [2022-01-18 11:05:36,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:36,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190953598] [2022-01-18 11:05:36,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:36,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:36,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:36,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:36,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190953598] [2022-01-18 11:05:36,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190953598] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:36,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:36,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:36,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024135967] [2022-01-18 11:05:36,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:36,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:36,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:36,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:36,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:36,568 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:37,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:37,062 INFO L93 Difference]: Finished difference Result 11186 states and 30133 transitions. [2022-01-18 11:05:37,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:37,062 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:37,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:37,076 INFO L225 Difference]: With dead ends: 11186 [2022-01-18 11:05:37,076 INFO L226 Difference]: Without dead ends: 10701 [2022-01-18 11:05:37,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=322, Invalid=1084, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:05:37,077 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 229 mSDsluCounter, 3008 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 3260 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:37,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 3260 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:37,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2022-01-18 11:05:37,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 9010. [2022-01-18 11:05:37,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:37,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-01-18 11:05:37,193 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-01-18 11:05:37,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:37,193 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-01-18 11:05:37,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:37,193 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-01-18 11:05:37,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:37,203 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:37,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:37,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-01-18 11:05:37,203 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:37,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:37,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1914214304, now seen corresponding path program 107 times [2022-01-18 11:05:37,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:37,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970529370] [2022-01-18 11:05:37,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:37,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:37,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:37,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:37,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970529370] [2022-01-18 11:05:37,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970529370] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:37,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:37,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:37,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140276270] [2022-01-18 11:05:37,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:37,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:37,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:37,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:37,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:37,315 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:37,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:37,764 INFO L93 Difference]: Finished difference Result 11120 states and 29956 transitions. [2022-01-18 11:05:37,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:05:37,765 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:37,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:37,779 INFO L225 Difference]: With dead ends: 11120 [2022-01-18 11:05:37,779 INFO L226 Difference]: Without dead ends: 10626 [2022-01-18 11:05:37,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:05:37,780 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 212 mSDsluCounter, 3127 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3379 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:37,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3379 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:37,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10626 states. [2022-01-18 11:05:37,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10626 to 8998. [2022-01-18 11:05:37,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7003445592975437) internal successors, (24295), 8997 states have internal predecessors, (24295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:37,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24295 transitions. [2022-01-18 11:05:37,893 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24295 transitions. Word has length 109 [2022-01-18 11:05:37,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:37,894 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24295 transitions. [2022-01-18 11:05:37,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:37,894 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24295 transitions. [2022-01-18 11:05:37,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:37,903 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:37,903 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:37,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-01-18 11:05:37,904 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:37,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:37,904 INFO L85 PathProgramCache]: Analyzing trace with hash -2057819140, now seen corresponding path program 108 times [2022-01-18 11:05:37,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:37,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485344527] [2022-01-18 11:05:37,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:37,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:38,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:38,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:38,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485344527] [2022-01-18 11:05:38,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485344527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:38,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:38,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:38,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126432699] [2022-01-18 11:05:38,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:38,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:38,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:38,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:38,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:38,022 INFO L87 Difference]: Start difference. First operand 8998 states and 24295 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:38,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:38,717 INFO L93 Difference]: Finished difference Result 11371 states and 30602 transitions. [2022-01-18 11:05:38,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:05:38,717 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:38,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:38,731 INFO L225 Difference]: With dead ends: 11371 [2022-01-18 11:05:38,731 INFO L226 Difference]: Without dead ends: 10800 [2022-01-18 11:05:38,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=616, Invalid=1934, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:05:38,732 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 353 mSDsluCounter, 2889 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 3144 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:38,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 3144 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:38,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10800 states. [2022-01-18 11:05:38,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10800 to 9002. [2022-01-18 11:05:38,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.6999222308632373) internal successors, (24302), 9001 states have internal predecessors, (24302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:38,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24302 transitions. [2022-01-18 11:05:38,846 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24302 transitions. Word has length 109 [2022-01-18 11:05:38,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:38,846 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24302 transitions. [2022-01-18 11:05:38,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:38,847 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24302 transitions. [2022-01-18 11:05:38,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:38,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:38,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:38,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-01-18 11:05:38,856 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:38,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:38,856 INFO L85 PathProgramCache]: Analyzing trace with hash -268256686, now seen corresponding path program 109 times [2022-01-18 11:05:38,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:38,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558713994] [2022-01-18 11:05:38,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:38,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:38,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:38,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:38,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558713994] [2022-01-18 11:05:38,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558713994] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:38,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:38,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:38,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485187755] [2022-01-18 11:05:38,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:38,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:38,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:38,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:38,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:38,974 INFO L87 Difference]: Start difference. First operand 9002 states and 24302 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:39,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:39,585 INFO L93 Difference]: Finished difference Result 11254 states and 30295 transitions. [2022-01-18 11:05:39,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:05:39,586 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:39,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:39,599 INFO L225 Difference]: With dead ends: 11254 [2022-01-18 11:05:39,599 INFO L226 Difference]: Without dead ends: 10726 [2022-01-18 11:05:39,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=461, Invalid=1519, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:05:39,600 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 289 mSDsluCounter, 3289 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 3534 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:39,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 3534 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:39,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10726 states. [2022-01-18 11:05:39,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10726 to 9006. [2022-01-18 11:05:39,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6995002776235424) internal successors, (24309), 9005 states have internal predecessors, (24309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:39,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24309 transitions. [2022-01-18 11:05:39,714 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24309 transitions. Word has length 109 [2022-01-18 11:05:39,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:39,714 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24309 transitions. [2022-01-18 11:05:39,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:39,714 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24309 transitions. [2022-01-18 11:05:39,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:39,724 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:39,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:39,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-01-18 11:05:39,724 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:39,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:39,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1518678268, now seen corresponding path program 110 times [2022-01-18 11:05:39,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:39,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847900633] [2022-01-18 11:05:39,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:39,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:39,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:39,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:39,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847900633] [2022-01-18 11:05:39,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847900633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:39,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:39,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:39,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093181052] [2022-01-18 11:05:39,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:39,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:39,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:39,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:39,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:39,852 INFO L87 Difference]: Start difference. First operand 9006 states and 24309 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:40,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:40,293 INFO L93 Difference]: Finished difference Result 11106 states and 29909 transitions. [2022-01-18 11:05:40,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:40,293 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:40,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:40,306 INFO L225 Difference]: With dead ends: 11106 [2022-01-18 11:05:40,306 INFO L226 Difference]: Without dead ends: 10621 [2022-01-18 11:05:40,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:05:40,307 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 227 mSDsluCounter, 2643 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2897 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:40,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 2897 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:40,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10621 states. [2022-01-18 11:05:40,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10621 to 9010. [2022-01-18 11:05:40,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.699078699078699) internal successors, (24316), 9009 states have internal predecessors, (24316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:40,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24316 transitions. [2022-01-18 11:05:40,419 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24316 transitions. Word has length 109 [2022-01-18 11:05:40,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:40,419 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24316 transitions. [2022-01-18 11:05:40,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:40,420 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24316 transitions. [2022-01-18 11:05:40,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:40,429 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:40,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:40,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-01-18 11:05:40,429 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:40,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:40,430 INFO L85 PathProgramCache]: Analyzing trace with hash -2094668374, now seen corresponding path program 111 times [2022-01-18 11:05:40,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:40,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538940201] [2022-01-18 11:05:40,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:40,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:40,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:40,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:40,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538940201] [2022-01-18 11:05:40,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538940201] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:40,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:40,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:40,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724326766] [2022-01-18 11:05:40,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:40,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:40,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:40,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:40,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:40,540 INFO L87 Difference]: Start difference. First operand 9010 states and 24316 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:40,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:40,957 INFO L93 Difference]: Finished difference Result 11008 states and 29644 transitions. [2022-01-18 11:05:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:05:40,957 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:40,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:40,971 INFO L225 Difference]: With dead ends: 11008 [2022-01-18 11:05:40,971 INFO L226 Difference]: Without dead ends: 10506 [2022-01-18 11:05:40,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:05:40,972 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 203 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 3185 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:40,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 3185 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:40,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10506 states. [2022-01-18 11:05:41,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10506 to 8990. [2022-01-18 11:05:41,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8990 states, 8989 states have (on average 2.7007453554344196) internal successors, (24277), 8989 states have internal predecessors, (24277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:41,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8990 states to 8990 states and 24277 transitions. [2022-01-18 11:05:41,085 INFO L78 Accepts]: Start accepts. Automaton has 8990 states and 24277 transitions. Word has length 109 [2022-01-18 11:05:41,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:41,085 INFO L470 AbstractCegarLoop]: Abstraction has 8990 states and 24277 transitions. [2022-01-18 11:05:41,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:41,085 INFO L276 IsEmpty]: Start isEmpty. Operand 8990 states and 24277 transitions. [2022-01-18 11:05:41,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:41,095 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:41,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:41,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-01-18 11:05:41,095 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:41,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:41,095 INFO L85 PathProgramCache]: Analyzing trace with hash 287389928, now seen corresponding path program 112 times [2022-01-18 11:05:41,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:41,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613780477] [2022-01-18 11:05:41,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:41,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:41,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:41,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:41,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613780477] [2022-01-18 11:05:41,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613780477] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:41,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:41,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:41,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234562130] [2022-01-18 11:05:41,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:41,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:41,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:41,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:41,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:41,228 INFO L87 Difference]: Start difference. First operand 8990 states and 24277 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:41,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:41,719 INFO L93 Difference]: Finished difference Result 11042 states and 29745 transitions. [2022-01-18 11:05:41,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:05:41,719 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:41,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:41,733 INFO L225 Difference]: With dead ends: 11042 [2022-01-18 11:05:41,733 INFO L226 Difference]: Without dead ends: 10557 [2022-01-18 11:05:41,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:05:41,734 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 245 mSDsluCounter, 3142 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 3383 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:41,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 3383 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:41,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2022-01-18 11:05:41,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 9010. [2022-01-18 11:05:41,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:41,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-01-18 11:05:41,849 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-01-18 11:05:41,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:41,849 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-01-18 11:05:41,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:41,849 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-01-18 11:05:41,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:41,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:41,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:41,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-01-18 11:05:41,859 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:41,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:41,859 INFO L85 PathProgramCache]: Analyzing trace with hash 969010582, now seen corresponding path program 113 times [2022-01-18 11:05:41,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:41,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613070275] [2022-01-18 11:05:41,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:41,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:41,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:41,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:41,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613070275] [2022-01-18 11:05:41,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613070275] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:41,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:41,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:41,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774368573] [2022-01-18 11:05:41,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:41,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:41,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:41,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:41,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:41,992 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:42,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:42,549 INFO L93 Difference]: Finished difference Result 11000 states and 29634 transitions. [2022-01-18 11:05:42,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:42,550 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:42,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:42,563 INFO L225 Difference]: With dead ends: 11000 [2022-01-18 11:05:42,564 INFO L226 Difference]: Without dead ends: 10514 [2022-01-18 11:05:42,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=352, Invalid=1130, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:05:42,564 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 224 mSDsluCounter, 2940 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 3195 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:42,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 3195 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:42,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10514 states. [2022-01-18 11:05:42,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10514 to 9006. [2022-01-18 11:05:42,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:42,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-01-18 11:05:42,677 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-01-18 11:05:42,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:42,677 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-01-18 11:05:42,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:42,677 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-01-18 11:05:42,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:42,687 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:42,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:42,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-01-18 11:05:42,687 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:42,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:42,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1669698138, now seen corresponding path program 114 times [2022-01-18 11:05:42,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:42,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703405995] [2022-01-18 11:05:42,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:42,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:42,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:42,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:42,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703405995] [2022-01-18 11:05:42,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703405995] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:42,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:42,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:42,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561660263] [2022-01-18 11:05:42,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:42,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:42,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:42,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:42,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:42,797 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:43,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:43,317 INFO L93 Difference]: Finished difference Result 11068 states and 29801 transitions. [2022-01-18 11:05:43,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:05:43,317 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:43,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:43,331 INFO L225 Difference]: With dead ends: 11068 [2022-01-18 11:05:43,331 INFO L226 Difference]: Without dead ends: 10542 [2022-01-18 11:05:43,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=469, Invalid=1423, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:05:43,332 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 293 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 3401 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:43,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 3401 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:43,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10542 states. [2022-01-18 11:05:43,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10542 to 9002. [2022-01-18 11:05:43,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:43,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-01-18 11:05:43,448 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-01-18 11:05:43,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:43,448 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-01-18 11:05:43,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:43,448 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-01-18 11:05:43,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:43,458 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:43,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:43,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-01-18 11:05:43,458 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:43,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:43,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1547581130, now seen corresponding path program 115 times [2022-01-18 11:05:43,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:43,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931811850] [2022-01-18 11:05:43,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:43,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:43,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:43,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:43,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931811850] [2022-01-18 11:05:43,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931811850] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:43,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:43,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:43,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61225014] [2022-01-18 11:05:43,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:43,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:43,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:43,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:43,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:43,586 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:44,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:44,166 INFO L93 Difference]: Finished difference Result 11198 states and 30145 transitions. [2022-01-18 11:05:44,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:05:44,167 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:44,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:44,181 INFO L225 Difference]: With dead ends: 11198 [2022-01-18 11:05:44,181 INFO L226 Difference]: Without dead ends: 10670 [2022-01-18 11:05:44,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=439, Invalid=1453, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:05:44,182 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 343 mSDsluCounter, 2512 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 2766 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:44,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 2766 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:44,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2022-01-18 11:05:44,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 9006. [2022-01-18 11:05:44,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:44,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-01-18 11:05:44,337 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-01-18 11:05:44,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:44,337 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-01-18 11:05:44,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:44,337 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-01-18 11:05:44,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:44,347 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:44,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:44,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-01-18 11:05:44,347 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:44,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:44,347 INFO L85 PathProgramCache]: Analyzing trace with hash 239353824, now seen corresponding path program 116 times [2022-01-18 11:05:44,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:44,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743718632] [2022-01-18 11:05:44,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:44,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:44,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:44,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:44,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743718632] [2022-01-18 11:05:44,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743718632] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:44,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:44,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:44,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910074919] [2022-01-18 11:05:44,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:44,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:44,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:44,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:44,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:44,476 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:44,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:44,938 INFO L93 Difference]: Finished difference Result 11034 states and 29715 transitions. [2022-01-18 11:05:44,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:44,938 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:44,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:44,953 INFO L225 Difference]: With dead ends: 11034 [2022-01-18 11:05:44,953 INFO L226 Difference]: Without dead ends: 10549 [2022-01-18 11:05:44,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:05:44,953 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 268 mSDsluCounter, 2955 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 3199 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:44,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 3199 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:44,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10549 states. [2022-01-18 11:05:45,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10549 to 9010. [2022-01-18 11:05:45,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:45,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-01-18 11:05:45,078 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-01-18 11:05:45,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:45,078 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-01-18 11:05:45,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:45,078 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-01-18 11:05:45,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:45,088 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:45,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:45,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-01-18 11:05:45,088 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:45,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:45,088 INFO L85 PathProgramCache]: Analyzing trace with hash 920974478, now seen corresponding path program 117 times [2022-01-18 11:05:45,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:45,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116240192] [2022-01-18 11:05:45,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:45,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:45,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:45,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:45,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116240192] [2022-01-18 11:05:45,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116240192] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:45,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:45,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:45,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871322280] [2022-01-18 11:05:45,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:45,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:45,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:45,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:45,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:45,200 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:45,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:45,636 INFO L93 Difference]: Finished difference Result 10968 states and 29538 transitions. [2022-01-18 11:05:45,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:05:45,636 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:45,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:45,650 INFO L225 Difference]: With dead ends: 10968 [2022-01-18 11:05:45,650 INFO L226 Difference]: Without dead ends: 10474 [2022-01-18 11:05:45,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:05:45,651 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 253 mSDsluCounter, 3061 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:45,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 3303 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:45,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10474 states. [2022-01-18 11:05:45,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10474 to 8998. [2022-01-18 11:05:45,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7003445592975437) internal successors, (24295), 8997 states have internal predecessors, (24295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:45,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24295 transitions. [2022-01-18 11:05:45,767 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24295 transitions. Word has length 109 [2022-01-18 11:05:45,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:45,767 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24295 transitions. [2022-01-18 11:05:45,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:45,767 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24295 transitions. [2022-01-18 11:05:45,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:45,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:45,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:45,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-01-18 11:05:45,777 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:45,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:45,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1243908330, now seen corresponding path program 118 times [2022-01-18 11:05:45,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:45,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861010774] [2022-01-18 11:05:45,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:45,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:45,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:45,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:45,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861010774] [2022-01-18 11:05:45,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861010774] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:45,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:45,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:45,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120208877] [2022-01-18 11:05:45,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:45,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:45,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:45,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:45,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:45,889 INFO L87 Difference]: Start difference. First operand 8998 states and 24295 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:46,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:46,517 INFO L93 Difference]: Finished difference Result 11331 states and 30492 transitions. [2022-01-18 11:05:46,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:05:46,517 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:46,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:46,532 INFO L225 Difference]: With dead ends: 11331 [2022-01-18 11:05:46,532 INFO L226 Difference]: Without dead ends: 10760 [2022-01-18 11:05:46,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=625, Invalid=2131, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:05:46,532 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 415 mSDsluCounter, 3129 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 3370 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:46,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 3370 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:46,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10760 states. [2022-01-18 11:05:46,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10760 to 9002. [2022-01-18 11:05:46,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.6999222308632373) internal successors, (24302), 9001 states have internal predecessors, (24302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:46,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24302 transitions. [2022-01-18 11:05:46,648 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24302 transitions. Word has length 109 [2022-01-18 11:05:46,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:46,648 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24302 transitions. [2022-01-18 11:05:46,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:46,648 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24302 transitions. [2022-01-18 11:05:46,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:46,658 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:46,658 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:46,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-01-18 11:05:46,658 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:46,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:46,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1261496512, now seen corresponding path program 119 times [2022-01-18 11:05:46,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:46,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141305873] [2022-01-18 11:05:46,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:46,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:46,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:46,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:46,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141305873] [2022-01-18 11:05:46,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141305873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:46,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:46,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:46,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667212841] [2022-01-18 11:05:46,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:46,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:46,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:46,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:46,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:46,791 INFO L87 Difference]: Start difference. First operand 9002 states and 24302 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:47,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:47,346 INFO L93 Difference]: Finished difference Result 11206 states and 30163 transitions. [2022-01-18 11:05:47,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:05:47,346 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:47,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:47,360 INFO L225 Difference]: With dead ends: 11206 [2022-01-18 11:05:47,360 INFO L226 Difference]: Without dead ends: 10678 [2022-01-18 11:05:47,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1616, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:05:47,361 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 344 mSDsluCounter, 3241 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:47,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 3478 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:47,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10678 states. [2022-01-18 11:05:47,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10678 to 9006. [2022-01-18 11:05:47,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6995002776235424) internal successors, (24309), 9005 states have internal predecessors, (24309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:47,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24309 transitions. [2022-01-18 11:05:47,475 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24309 transitions. Word has length 109 [2022-01-18 11:05:47,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:47,475 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24309 transitions. [2022-01-18 11:05:47,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:47,475 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24309 transitions. [2022-01-18 11:05:47,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:47,484 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:47,485 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:47,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-01-18 11:05:47,485 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:47,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:47,485 INFO L85 PathProgramCache]: Analyzing trace with hash 525438442, now seen corresponding path program 120 times [2022-01-18 11:05:47,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:47,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276749710] [2022-01-18 11:05:47,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:47,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:47,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:47,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:47,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276749710] [2022-01-18 11:05:47,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276749710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:47,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:47,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:47,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243661925] [2022-01-18 11:05:47,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:47,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:47,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:47,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:47,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:47,599 INFO L87 Difference]: Start difference. First operand 9006 states and 24309 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:48,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:48,036 INFO L93 Difference]: Finished difference Result 11042 states and 29733 transitions. [2022-01-18 11:05:48,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:48,036 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:48,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:48,050 INFO L225 Difference]: With dead ends: 11042 [2022-01-18 11:05:48,050 INFO L226 Difference]: Without dead ends: 10557 [2022-01-18 11:05:48,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:05:48,051 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 270 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2857 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:48,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2857 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:48,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2022-01-18 11:05:48,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 9010. [2022-01-18 11:05:48,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.699078699078699) internal successors, (24316), 9009 states have internal predecessors, (24316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:48,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24316 transitions. [2022-01-18 11:05:48,165 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24316 transitions. Word has length 109 [2022-01-18 11:05:48,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:48,165 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24316 transitions. [2022-01-18 11:05:48,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:48,165 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24316 transitions. [2022-01-18 11:05:48,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:48,175 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:48,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:48,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-01-18 11:05:48,175 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:48,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:48,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1207059096, now seen corresponding path program 121 times [2022-01-18 11:05:48,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:48,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727445302] [2022-01-18 11:05:48,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:48,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:48,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:48,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:48,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727445302] [2022-01-18 11:05:48,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727445302] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:48,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:48,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:48,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751772747] [2022-01-18 11:05:48,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:48,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:48,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:48,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:48,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:48,309 INFO L87 Difference]: Start difference. First operand 9010 states and 24316 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:48,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:48,832 INFO L93 Difference]: Finished difference Result 10968 states and 29534 transitions. [2022-01-18 11:05:48,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:05:48,832 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:48,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:48,850 INFO L225 Difference]: With dead ends: 10968 [2022-01-18 11:05:48,850 INFO L226 Difference]: Without dead ends: 10470 [2022-01-18 11:05:48,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=318, Invalid=1014, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:05:48,851 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 253 mSDsluCounter, 3049 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 3287 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:48,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 3287 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:48,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10470 states. [2022-01-18 11:05:48,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10470 to 8994. [2022-01-18 11:05:48,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8993 states have (on average 2.7003224730345825) internal successors, (24284), 8993 states have internal predecessors, (24284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:49,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24284 transitions. [2022-01-18 11:05:49,011 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24284 transitions. Word has length 109 [2022-01-18 11:05:49,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:49,011 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24284 transitions. [2022-01-18 11:05:49,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:49,011 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24284 transitions. [2022-01-18 11:05:49,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:49,021 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:49,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:49,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-01-18 11:05:49,021 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:49,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:49,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1881550740, now seen corresponding path program 122 times [2022-01-18 11:05:49,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:49,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692185588] [2022-01-18 11:05:49,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:49,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:49,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:49,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:49,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692185588] [2022-01-18 11:05:49,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692185588] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:49,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:49,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:49,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256740445] [2022-01-18 11:05:49,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:49,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:49,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:49,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:49,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:49,157 INFO L87 Difference]: Start difference. First operand 8994 states and 24284 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:49,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:49,870 INFO L93 Difference]: Finished difference Result 11271 states and 30302 transitions. [2022-01-18 11:05:49,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 11:05:49,870 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:49,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:49,884 INFO L225 Difference]: With dead ends: 11271 [2022-01-18 11:05:49,885 INFO L226 Difference]: Without dead ends: 10657 [2022-01-18 11:05:49,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 946 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:05:49,885 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 497 mSDsluCounter, 3171 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:49,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [497 Valid, 3410 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:49,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10657 states. [2022-01-18 11:05:49,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10657 to 8998. [2022-01-18 11:05:49,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.699899966655552) internal successors, (24291), 8997 states have internal predecessors, (24291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:50,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24291 transitions. [2022-01-18 11:05:50,001 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24291 transitions. Word has length 109 [2022-01-18 11:05:50,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:50,001 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24291 transitions. [2022-01-18 11:05:50,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:50,002 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24291 transitions. [2022-01-18 11:05:50,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:50,011 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:50,011 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:50,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-01-18 11:05:50,012 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:50,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:50,012 INFO L85 PathProgramCache]: Analyzing trace with hash 824254586, now seen corresponding path program 123 times [2022-01-18 11:05:50,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:50,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577059531] [2022-01-18 11:05:50,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:50,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:50,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:50,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:50,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577059531] [2022-01-18 11:05:50,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577059531] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:50,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:50,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:50,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956196638] [2022-01-18 11:05:50,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:50,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:50,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:50,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:50,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:50,130 INFO L87 Difference]: Start difference. First operand 8998 states and 24291 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:50,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:50,842 INFO L93 Difference]: Finished difference Result 11139 states and 29960 transitions. [2022-01-18 11:05:50,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:05:50,843 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:50,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:50,856 INFO L225 Difference]: With dead ends: 11139 [2022-01-18 11:05:50,856 INFO L226 Difference]: Without dead ends: 10568 [2022-01-18 11:05:50,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 736 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=628, Invalid=2128, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:05:50,857 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 429 mSDsluCounter, 2536 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 2785 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:50,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 2785 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:50,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10568 states. [2022-01-18 11:05:50,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10568 to 9002. [2022-01-18 11:05:50,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.6994778357960225) internal successors, (24298), 9001 states have internal predecessors, (24298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:50,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24298 transitions. [2022-01-18 11:05:50,971 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24298 transitions. Word has length 109 [2022-01-18 11:05:50,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:50,971 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24298 transitions. [2022-01-18 11:05:50,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:50,972 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24298 transitions. [2022-01-18 11:05:50,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:50,981 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:50,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:50,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-01-18 11:05:50,982 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:50,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:50,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1681150256, now seen corresponding path program 124 times [2022-01-18 11:05:50,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:50,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205514192] [2022-01-18 11:05:50,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:50,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:51,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:51,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:51,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205514192] [2022-01-18 11:05:51,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205514192] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:51,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:51,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:51,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54229652] [2022-01-18 11:05:51,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:51,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:51,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:51,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:51,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:51,097 INFO L87 Difference]: Start difference. First operand 9002 states and 24298 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:51,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:51,621 INFO L93 Difference]: Finished difference Result 11030 states and 29675 transitions. [2022-01-18 11:05:51,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:05:51,621 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:51,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:51,636 INFO L225 Difference]: With dead ends: 11030 [2022-01-18 11:05:51,636 INFO L226 Difference]: Without dead ends: 10502 [2022-01-18 11:05:51,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=444, Invalid=1626, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:05:51,636 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 365 mSDsluCounter, 2981 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 3213 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:51,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 3213 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:51,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10502 states. [2022-01-18 11:05:51,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10502 to 9006. [2022-01-18 11:05:51,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.69905607995558) internal successors, (24305), 9005 states have internal predecessors, (24305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:51,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24305 transitions. [2022-01-18 11:05:51,751 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24305 transitions. Word has length 109 [2022-01-18 11:05:51,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:51,751 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24305 transitions. [2022-01-18 11:05:51,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:51,751 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24305 transitions. [2022-01-18 11:05:51,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:51,761 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:51,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:51,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-01-18 11:05:51,761 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:51,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:51,761 INFO L85 PathProgramCache]: Analyzing trace with hash 105784698, now seen corresponding path program 125 times [2022-01-18 11:05:51,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:51,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240678144] [2022-01-18 11:05:51,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:51,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:51,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:51,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:51,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240678144] [2022-01-18 11:05:51,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240678144] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:51,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:51,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:51,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664421933] [2022-01-18 11:05:51,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:51,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:51,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:51,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:51,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:51,875 INFO L87 Difference]: Start difference. First operand 9006 states and 24305 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:52,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:52,302 INFO L93 Difference]: Finished difference Result 10898 states and 29333 transitions. [2022-01-18 11:05:52,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:52,303 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:52,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:52,316 INFO L225 Difference]: With dead ends: 10898 [2022-01-18 11:05:52,316 INFO L226 Difference]: Without dead ends: 10413 [2022-01-18 11:05:52,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:05:52,317 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 302 mSDsluCounter, 2870 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:52,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 3100 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:52,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10413 states. [2022-01-18 11:05:52,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10413 to 9010. [2022-01-18 11:05:52,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6986346986346987) internal successors, (24312), 9009 states have internal predecessors, (24312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:52,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24312 transitions. [2022-01-18 11:05:52,472 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24312 transitions. Word has length 109 [2022-01-18 11:05:52,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:52,472 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24312 transitions. [2022-01-18 11:05:52,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:52,472 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24312 transitions. [2022-01-18 11:05:52,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:52,482 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:52,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:52,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-01-18 11:05:52,482 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:52,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:52,483 INFO L85 PathProgramCache]: Analyzing trace with hash 787405352, now seen corresponding path program 126 times [2022-01-18 11:05:52,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:52,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529069248] [2022-01-18 11:05:52,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:52,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:52,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:52,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:52,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529069248] [2022-01-18 11:05:52,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529069248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:52,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:52,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:52,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728528988] [2022-01-18 11:05:52,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:52,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:52,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:52,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:52,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:52,617 INFO L87 Difference]: Start difference. First operand 9010 states and 24312 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:53,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:53,009 INFO L93 Difference]: Finished difference Result 10728 states and 28870 transitions. [2022-01-18 11:05:53,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:05:53,010 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:53,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:53,024 INFO L225 Difference]: With dead ends: 10728 [2022-01-18 11:05:53,024 INFO L226 Difference]: Without dead ends: 10192 [2022-01-18 11:05:53,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:05:53,025 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 232 mSDsluCounter, 2797 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 3028 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:53,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 3028 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:05:53,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10192 states. [2022-01-18 11:05:53,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10192 to 8956. [2022-01-18 11:05:53,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8956 states, 8955 states have (on average 2.7019542155220546) internal successors, (24196), 8955 states have internal predecessors, (24196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:53,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8956 states to 8956 states and 24196 transitions. [2022-01-18 11:05:53,147 INFO L78 Accepts]: Start accepts. Automaton has 8956 states and 24196 transitions. Word has length 109 [2022-01-18 11:05:53,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:53,147 INFO L470 AbstractCegarLoop]: Abstraction has 8956 states and 24196 transitions. [2022-01-18 11:05:53,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:53,147 INFO L276 IsEmpty]: Start isEmpty. Operand 8956 states and 24196 transitions. [2022-01-18 11:05:53,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:53,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:53,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:53,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-01-18 11:05:53,158 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:53,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:53,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1754725222, now seen corresponding path program 127 times [2022-01-18 11:05:53,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:53,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487041239] [2022-01-18 11:05:53,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:53,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:53,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:53,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:53,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487041239] [2022-01-18 11:05:53,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487041239] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:53,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:53,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:53,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513210295] [2022-01-18 11:05:53,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:53,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:53,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:53,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:53,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:53,273 INFO L87 Difference]: Start difference. First operand 8956 states and 24196 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:53,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:53,739 INFO L93 Difference]: Finished difference Result 12078 states and 32580 transitions. [2022-01-18 11:05:53,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:05:53,739 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:53,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:53,755 INFO L225 Difference]: With dead ends: 12078 [2022-01-18 11:05:53,755 INFO L226 Difference]: Without dead ends: 11593 [2022-01-18 11:05:53,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:05:53,756 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 223 mSDsluCounter, 3177 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 3415 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:53,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 3415 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:53,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11593 states. [2022-01-18 11:05:53,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11593 to 8992. [2022-01-18 11:05:53,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7017017017017015) internal successors, (24291), 8991 states have internal predecessors, (24291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:53,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24291 transitions. [2022-01-18 11:05:53,901 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24291 transitions. Word has length 109 [2022-01-18 11:05:53,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:53,901 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24291 transitions. [2022-01-18 11:05:53,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:53,902 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24291 transitions. [2022-01-18 11:05:53,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:53,912 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:53,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:53,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-01-18 11:05:53,912 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:53,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:53,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1858621420, now seen corresponding path program 128 times [2022-01-18 11:05:53,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:53,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343080557] [2022-01-18 11:05:53,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:53,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:54,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:54,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:54,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343080557] [2022-01-18 11:05:54,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343080557] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:54,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:54,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:54,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984820263] [2022-01-18 11:05:54,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:54,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:54,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:54,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:54,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:54,023 INFO L87 Difference]: Start difference. First operand 8992 states and 24291 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:54,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:54,502 INFO L93 Difference]: Finished difference Result 12044 states and 32491 transitions. [2022-01-18 11:05:54,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:54,502 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:54,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:54,518 INFO L225 Difference]: With dead ends: 12044 [2022-01-18 11:05:54,518 INFO L226 Difference]: Without dead ends: 11558 [2022-01-18 11:05:54,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:05:54,519 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 223 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 3254 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:54,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 3254 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:54,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11558 states. [2022-01-18 11:05:54,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11558 to 8988. [2022-01-18 11:05:54,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7016802047401804) internal successors, (24280), 8987 states have internal predecessors, (24280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:54,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24280 transitions. [2022-01-18 11:05:54,643 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24280 transitions. Word has length 109 [2022-01-18 11:05:54,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:54,644 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24280 transitions. [2022-01-18 11:05:54,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:54,644 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24280 transitions. [2022-01-18 11:05:54,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:54,653 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:54,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:54,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-01-18 11:05:54,654 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:54,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:54,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1157933864, now seen corresponding path program 129 times [2022-01-18 11:05:54,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:54,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067208881] [2022-01-18 11:05:54,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:54,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:54,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:54,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:54,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067208881] [2022-01-18 11:05:54,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067208881] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:54,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:54,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:54,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900838337] [2022-01-18 11:05:54,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:54,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:54,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:54,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:54,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:54,783 INFO L87 Difference]: Start difference. First operand 8988 states and 24280 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:55,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:55,390 INFO L93 Difference]: Finished difference Result 12080 states and 32586 transitions. [2022-01-18 11:05:55,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:05:55,390 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:55,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:55,405 INFO L225 Difference]: With dead ends: 12080 [2022-01-18 11:05:55,406 INFO L226 Difference]: Without dead ends: 11554 [2022-01-18 11:05:55,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1606, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:05:55,406 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 272 mSDsluCounter, 3265 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 3523 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:55,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 3523 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:55,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11554 states. [2022-01-18 11:05:55,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11554 to 8984. [2022-01-18 11:05:55,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7016586886340868) internal successors, (24269), 8983 states have internal predecessors, (24269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:55,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24269 transitions. [2022-01-18 11:05:55,527 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24269 transitions. Word has length 109 [2022-01-18 11:05:55,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:55,527 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24269 transitions. [2022-01-18 11:05:55,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:55,528 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24269 transitions. [2022-01-18 11:05:55,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:55,537 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:55,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:55,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-01-18 11:05:55,537 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:55,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:55,538 INFO L85 PathProgramCache]: Analyzing trace with hash 992956968, now seen corresponding path program 130 times [2022-01-18 11:05:55,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:55,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491414730] [2022-01-18 11:05:55,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:55,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:55,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:55,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:55,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491414730] [2022-01-18 11:05:55,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491414730] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:55,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:55,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:55,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439384112] [2022-01-18 11:05:55,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:55,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:55,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:55,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:55,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:55,654 INFO L87 Difference]: Start difference. First operand 8984 states and 24269 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:56,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:56,355 INFO L93 Difference]: Finished difference Result 12252 states and 33031 transitions. [2022-01-18 11:05:56,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:05:56,356 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:56,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:56,371 INFO L225 Difference]: With dead ends: 12252 [2022-01-18 11:05:56,371 INFO L226 Difference]: Without dead ends: 11686 [2022-01-18 11:05:56,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=616, Invalid=1934, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:05:56,372 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 347 mSDsluCounter, 3131 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 3395 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:56,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 3395 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:56,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11686 states. [2022-01-18 11:05:56,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11686 to 8980. [2022-01-18 11:05:56,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701637153357835) internal successors, (24258), 8979 states have internal predecessors, (24258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:56,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24258 transitions. [2022-01-18 11:05:56,492 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24258 transitions. Word has length 109 [2022-01-18 11:05:56,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:56,492 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24258 transitions. [2022-01-18 11:05:56,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:56,492 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24258 transitions. [2022-01-18 11:05:56,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:56,503 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:56,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:56,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-01-18 11:05:56,503 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:56,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:56,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1509597844, now seen corresponding path program 131 times [2022-01-18 11:05:56,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:56,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701666882] [2022-01-18 11:05:56,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:56,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:56,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:56,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:56,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701666882] [2022-01-18 11:05:56,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701666882] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:56,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:56,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:56,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333555482] [2022-01-18 11:05:56,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:56,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:56,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:56,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:56,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:56,623 INFO L87 Difference]: Start difference. First operand 8980 states and 24258 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:57,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:57,104 INFO L93 Difference]: Finished difference Result 12154 states and 32785 transitions. [2022-01-18 11:05:57,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:05:57,104 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:57,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:57,123 INFO L225 Difference]: With dead ends: 12154 [2022-01-18 11:05:57,123 INFO L226 Difference]: Without dead ends: 11669 [2022-01-18 11:05:57,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:05:57,123 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 227 mSDsluCounter, 3186 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 3427 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:57,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 3427 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:57,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11669 states. [2022-01-18 11:05:57,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11669 to 8992. [2022-01-18 11:05:57,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:57,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-01-18 11:05:57,260 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-01-18 11:05:57,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:57,260 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-01-18 11:05:57,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:57,261 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-01-18 11:05:57,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:57,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:57,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:57,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-01-18 11:05:57,270 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:57,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:57,270 INFO L85 PathProgramCache]: Analyzing trace with hash -827977190, now seen corresponding path program 132 times [2022-01-18 11:05:57,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:57,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037947127] [2022-01-18 11:05:57,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:57,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:57,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:57,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:57,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037947127] [2022-01-18 11:05:57,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037947127] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:57,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:57,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:57,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085436835] [2022-01-18 11:05:57,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:57,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:57,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:57,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:57,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:57,385 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:57,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:57,851 INFO L93 Difference]: Finished difference Result 12112 states and 32674 transitions. [2022-01-18 11:05:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:05:57,851 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:57,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:57,867 INFO L225 Difference]: With dead ends: 12112 [2022-01-18 11:05:57,867 INFO L226 Difference]: Without dead ends: 11626 [2022-01-18 11:05:57,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=322, Invalid=1084, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:05:57,868 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 225 mSDsluCounter, 3006 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 3260 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:57,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 3260 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:57,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11626 states. [2022-01-18 11:05:57,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11626 to 8988. [2022-01-18 11:05:57,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:57,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-01-18 11:05:57,986 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-01-18 11:05:57,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:57,986 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-01-18 11:05:57,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:57,986 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-01-18 11:05:57,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:57,995 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:57,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:57,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-01-18 11:05:57,996 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:57,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:57,996 INFO L85 PathProgramCache]: Analyzing trace with hash -127289634, now seen corresponding path program 133 times [2022-01-18 11:05:57,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:57,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098005181] [2022-01-18 11:05:57,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:57,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:58,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:58,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:58,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098005181] [2022-01-18 11:05:58,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098005181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:58,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:58,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:58,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139650073] [2022-01-18 11:05:58,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:58,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:58,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:58,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:58,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:58,112 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:58,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:58,661 INFO L93 Difference]: Finished difference Result 12240 states and 33006 transitions. [2022-01-18 11:05:58,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:05:58,661 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:58,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:58,677 INFO L225 Difference]: With dead ends: 12240 [2022-01-18 11:05:58,677 INFO L226 Difference]: Without dead ends: 11714 [2022-01-18 11:05:58,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1528, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:05:58,677 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 295 mSDsluCounter, 3076 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 3335 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:58,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 3335 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:58,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11714 states. [2022-01-18 11:05:58,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11714 to 8984. [2022-01-18 11:05:58,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:58,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-01-18 11:05:58,798 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-01-18 11:05:58,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:58,798 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-01-18 11:05:58,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:58,798 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-01-18 11:05:58,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:58,807 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:58,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:58,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-01-18 11:05:58,807 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:58,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:58,808 INFO L85 PathProgramCache]: Analyzing trace with hash 950398394, now seen corresponding path program 134 times [2022-01-18 11:05:58,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:58,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472789541] [2022-01-18 11:05:58,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:58,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:58,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:58,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:58,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472789541] [2022-01-18 11:05:58,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472789541] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:58,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:58,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:58,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758669881] [2022-01-18 11:05:58,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:58,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:58,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:58,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:58,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:58,925 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:59,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:05:59,497 INFO L93 Difference]: Finished difference Result 12242 states and 32998 transitions. [2022-01-18 11:05:59,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:05:59,497 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:05:59,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:05:59,513 INFO L225 Difference]: With dead ends: 12242 [2022-01-18 11:05:59,513 INFO L226 Difference]: Without dead ends: 11714 [2022-01-18 11:05:59,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=479, Invalid=1501, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:05:59,514 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 285 mSDsluCounter, 3286 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 3527 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:05:59,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 3527 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:05:59,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11714 states. [2022-01-18 11:05:59,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11714 to 8988. [2022-01-18 11:05:59,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:59,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-01-18 11:05:59,694 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-01-18 11:05:59,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:05:59,694 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-01-18 11:05:59,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:05:59,695 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-01-18 11:05:59,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:05:59,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:05:59,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:05:59,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-01-18 11:05:59,709 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:05:59,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:05:59,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1557633948, now seen corresponding path program 135 times [2022-01-18 11:05:59,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:05:59,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348196635] [2022-01-18 11:05:59,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:05:59,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:05:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:05:59,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:05:59,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:05:59,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348196635] [2022-01-18 11:05:59,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348196635] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:05:59,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:05:59,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:05:59,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760757566] [2022-01-18 11:05:59,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:05:59,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:05:59,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:05:59,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:05:59,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:05:59,854 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:00,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:00,372 INFO L93 Difference]: Finished difference Result 12094 states and 32612 transitions. [2022-01-18 11:06:00,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:00,372 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:00,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:00,389 INFO L225 Difference]: With dead ends: 12094 [2022-01-18 11:06:00,389 INFO L226 Difference]: Without dead ends: 11609 [2022-01-18 11:06:00,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:06:00,390 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 228 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 3440 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:00,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 3440 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:00,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11609 states. [2022-01-18 11:06:00,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11609 to 8992. [2022-01-18 11:06:00,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:00,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-01-18 11:06:00,565 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-01-18 11:06:00,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:00,565 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-01-18 11:06:00,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:00,565 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-01-18 11:06:00,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:00,576 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:00,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:00,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-01-18 11:06:00,576 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:00,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:00,577 INFO L85 PathProgramCache]: Analyzing trace with hash -876013294, now seen corresponding path program 136 times [2022-01-18 11:06:00,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:00,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94978145] [2022-01-18 11:06:00,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:00,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:00,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:00,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:00,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94978145] [2022-01-18 11:06:00,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94978145] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:00,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:00,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:00,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618018101] [2022-01-18 11:06:00,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:00,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:00,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:00,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:00,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:00,691 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:01,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:01,150 INFO L93 Difference]: Finished difference Result 12012 states and 32391 transitions. [2022-01-18 11:06:01,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:06:01,150 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:01,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:01,166 INFO L225 Difference]: With dead ends: 12012 [2022-01-18 11:06:01,166 INFO L226 Difference]: Without dead ends: 11514 [2022-01-18 11:06:01,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=1028, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:06:01,167 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 212 mSDsluCounter, 3162 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3411 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:01,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3411 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:01,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11514 states. [2022-01-18 11:06:01,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11514 to 8976. [2022-01-18 11:06:01,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.7016155988857937) internal successors, (24247), 8975 states have internal predecessors, (24247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:01,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24247 transitions. [2022-01-18 11:06:01,296 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24247 transitions. Word has length 109 [2022-01-18 11:06:01,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:01,297 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24247 transitions. [2022-01-18 11:06:01,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:01,297 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24247 transitions. [2022-01-18 11:06:01,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:01,307 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:01,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:01,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-01-18 11:06:01,307 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:01,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:01,307 INFO L85 PathProgramCache]: Analyzing trace with hash -427653532, now seen corresponding path program 137 times [2022-01-18 11:06:01,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:01,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550106167] [2022-01-18 11:06:01,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:01,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:01,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:01,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:01,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550106167] [2022-01-18 11:06:01,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550106167] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:01,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:01,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:01,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751625113] [2022-01-18 11:06:01,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:01,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:01,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:01,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:01,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:01,421 INFO L87 Difference]: Start difference. First operand 8976 states and 24247 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:01,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:01,898 INFO L93 Difference]: Finished difference Result 12030 states and 32444 transitions. [2022-01-18 11:06:01,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:06:01,898 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:01,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:01,914 INFO L225 Difference]: With dead ends: 12030 [2022-01-18 11:06:01,914 INFO L226 Difference]: Without dead ends: 11545 [2022-01-18 11:06:01,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:06:01,915 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 233 mSDsluCounter, 3020 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 3262 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:01,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 3262 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:01,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11545 states. [2022-01-18 11:06:02,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11545 to 8992. [2022-01-18 11:06:02,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:02,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-01-18 11:06:02,038 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-01-18 11:06:02,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:02,039 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-01-18 11:06:02,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:02,039 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-01-18 11:06:02,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:02,048 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:02,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:02,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-01-18 11:06:02,049 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:02,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:02,049 INFO L85 PathProgramCache]: Analyzing trace with hash 253967122, now seen corresponding path program 138 times [2022-01-18 11:06:02,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:02,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974654690] [2022-01-18 11:06:02,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:02,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:02,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:02,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:02,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974654690] [2022-01-18 11:06:02,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974654690] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:02,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:02,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:02,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642624920] [2022-01-18 11:06:02,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:02,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:02,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:02,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:02,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:02,160 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:02,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:02,630 INFO L93 Difference]: Finished difference Result 11988 states and 32333 transitions. [2022-01-18 11:06:02,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:02,631 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:02,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:02,646 INFO L225 Difference]: With dead ends: 11988 [2022-01-18 11:06:02,646 INFO L226 Difference]: Without dead ends: 11502 [2022-01-18 11:06:02,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=1079, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:06:02,647 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 213 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 3425 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:02,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 3425 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:02,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11502 states. [2022-01-18 11:06:02,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11502 to 8988. [2022-01-18 11:06:02,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:02,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-01-18 11:06:02,768 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-01-18 11:06:02,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:02,768 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-01-18 11:06:02,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:02,769 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-01-18 11:06:02,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:02,778 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:02,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:02,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-01-18 11:06:02,778 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:02,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:02,779 INFO L85 PathProgramCache]: Analyzing trace with hash 954654678, now seen corresponding path program 139 times [2022-01-18 11:06:02,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:02,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804659817] [2022-01-18 11:06:02,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:02,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:02,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:02,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:02,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804659817] [2022-01-18 11:06:02,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804659817] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:02,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:02,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:02,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678491598] [2022-01-18 11:06:02,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:02,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:02,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:02,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:02,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:02,894 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:03,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:03,441 INFO L93 Difference]: Finished difference Result 12116 states and 32665 transitions. [2022-01-18 11:06:03,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:06:03,442 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:03,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:03,457 INFO L225 Difference]: With dead ends: 12116 [2022-01-18 11:06:03,457 INFO L226 Difference]: Without dead ends: 11590 [2022-01-18 11:06:03,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=438, Invalid=1368, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 11:06:03,458 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 291 mSDsluCounter, 2527 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2792 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:03,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 2792 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:06:03,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11590 states. [2022-01-18 11:06:03,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11590 to 8984. [2022-01-18 11:06:03,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:03,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-01-18 11:06:03,578 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-01-18 11:06:03,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:03,578 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-01-18 11:06:03,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:03,578 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-01-18 11:06:03,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:03,588 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:03,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:03,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-01-18 11:06:03,588 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:03,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:03,588 INFO L85 PathProgramCache]: Analyzing trace with hash 2032342706, now seen corresponding path program 140 times [2022-01-18 11:06:03,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:03,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258713917] [2022-01-18 11:06:03,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:03,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:03,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:03,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:03,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258713917] [2022-01-18 11:06:03,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258713917] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:03,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:03,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:03,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809345558] [2022-01-18 11:06:03,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:03,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:03,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:03,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:03,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:03,715 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:04,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:04,297 INFO L93 Difference]: Finished difference Result 12198 states and 32877 transitions. [2022-01-18 11:06:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:06:04,297 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:04,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:04,313 INFO L225 Difference]: With dead ends: 12198 [2022-01-18 11:06:04,313 INFO L226 Difference]: Without dead ends: 11670 [2022-01-18 11:06:04,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:06:04,313 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 282 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3537 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:04,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3537 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:04,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11670 states. [2022-01-18 11:06:04,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11670 to 8988. [2022-01-18 11:06:04,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:04,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-01-18 11:06:04,433 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-01-18 11:06:04,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:04,433 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-01-18 11:06:04,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:04,433 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-01-18 11:06:04,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:04,443 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:04,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:04,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-01-18 11:06:04,443 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:04,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:04,443 INFO L85 PathProgramCache]: Analyzing trace with hash -475689636, now seen corresponding path program 141 times [2022-01-18 11:06:04,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:04,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906237395] [2022-01-18 11:06:04,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:04,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:04,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:04,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:04,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906237395] [2022-01-18 11:06:04,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906237395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:04,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:04,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:04,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315010687] [2022-01-18 11:06:04,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:04,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:04,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:04,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:04,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:04,556 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:05,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:05,036 INFO L93 Difference]: Finished difference Result 12034 states and 32447 transitions. [2022-01-18 11:06:05,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:05,036 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:05,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:05,052 INFO L225 Difference]: With dead ends: 12034 [2022-01-18 11:06:05,052 INFO L226 Difference]: Without dead ends: 11549 [2022-01-18 11:06:05,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:06:05,053 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 231 mSDsluCounter, 3036 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 3282 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:05,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 3282 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:05,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11549 states. [2022-01-18 11:06:05,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11549 to 8992. [2022-01-18 11:06:05,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:05,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-01-18 11:06:05,174 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-01-18 11:06:05,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:05,174 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-01-18 11:06:05,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:05,174 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-01-18 11:06:05,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:05,184 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:05,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:05,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-01-18 11:06:05,184 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:05,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:05,184 INFO L85 PathProgramCache]: Analyzing trace with hash 205931018, now seen corresponding path program 142 times [2022-01-18 11:06:05,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:05,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475482298] [2022-01-18 11:06:05,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:05,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:05,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:05,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:05,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475482298] [2022-01-18 11:06:05,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475482298] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:05,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:05,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:05,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50953889] [2022-01-18 11:06:05,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:05,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:05,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:05,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:05,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:05,298 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:05,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:05,746 INFO L93 Difference]: Finished difference Result 11968 states and 32270 transitions. [2022-01-18 11:06:05,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:06:05,746 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:05,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:05,762 INFO L225 Difference]: With dead ends: 11968 [2022-01-18 11:06:05,762 INFO L226 Difference]: Without dead ends: 11474 [2022-01-18 11:06:05,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:06:05,763 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 219 mSDsluCounter, 2996 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 3247 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:05,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 3247 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:05,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11474 states. [2022-01-18 11:06:05,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11474 to 8980. [2022-01-18 11:06:05,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701191669450941) internal successors, (24254), 8979 states have internal predecessors, (24254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:05,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-01-18 11:06:05,887 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-01-18 11:06:05,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:05,888 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-01-18 11:06:05,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:05,888 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-01-18 11:06:05,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:05,900 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:05,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:05,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-01-18 11:06:05,901 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:05,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:05,901 INFO L85 PathProgramCache]: Analyzing trace with hash 528864870, now seen corresponding path program 143 times [2022-01-18 11:06:05,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:05,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982007900] [2022-01-18 11:06:05,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:05,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:06,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:06,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:06,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982007900] [2022-01-18 11:06:06,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982007900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:06,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:06,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:06,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450842383] [2022-01-18 11:06:06,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:06,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:06,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:06,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:06,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:06,025 INFO L87 Difference]: Start difference. First operand 8980 states and 24254 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:06,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:06,682 INFO L93 Difference]: Finished difference Result 12111 states and 32619 transitions. [2022-01-18 11:06:06,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:06:06,682 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:06,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:06,699 INFO L225 Difference]: With dead ends: 12111 [2022-01-18 11:06:06,699 INFO L226 Difference]: Without dead ends: 11540 [2022-01-18 11:06:06,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=1998, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:06:06,700 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 344 mSDsluCounter, 3210 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:06,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 3452 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:06,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11540 states. [2022-01-18 11:06:06,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11540 to 8984. [2022-01-18 11:06:06,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:06,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-01-18 11:06:06,830 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-01-18 11:06:06,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:06,830 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-01-18 11:06:06,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:06,830 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-01-18 11:06:06,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:06,841 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:06,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:06,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-01-18 11:06:06,841 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:06,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:06,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1976539972, now seen corresponding path program 144 times [2022-01-18 11:06:06,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:06,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371093175] [2022-01-18 11:06:06,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:06,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:06,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:06,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:06,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371093175] [2022-01-18 11:06:06,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371093175] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:06,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:06,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:06,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998734127] [2022-01-18 11:06:06,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:06,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:06,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:06,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:06,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:06,957 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:07,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:07,581 INFO L93 Difference]: Finished difference Result 12098 states and 32598 transitions. [2022-01-18 11:06:07,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:06:07,582 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:07,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:07,599 INFO L225 Difference]: With dead ends: 12098 [2022-01-18 11:06:07,599 INFO L226 Difference]: Without dead ends: 11570 [2022-01-18 11:06:07,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=502, Invalid=1660, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:06:07,600 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 282 mSDsluCounter, 3309 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3552 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:07,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3552 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:07,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11570 states. [2022-01-18 11:06:07,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11570 to 8988. [2022-01-18 11:06:07,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:07,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-01-18 11:06:07,723 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-01-18 11:06:07,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:07,723 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-01-18 11:06:07,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:07,723 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-01-18 11:06:07,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:07,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:07,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:07,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-01-18 11:06:07,733 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:07,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:07,733 INFO L85 PathProgramCache]: Analyzing trace with hash -189605018, now seen corresponding path program 145 times [2022-01-18 11:06:07,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:07,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186026793] [2022-01-18 11:06:07,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:07,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:07,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:07,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:07,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186026793] [2022-01-18 11:06:07,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186026793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:07,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:07,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:07,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195044483] [2022-01-18 11:06:07,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:07,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:07,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:07,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:07,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:07,876 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:08,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:08,532 INFO L93 Difference]: Finished difference Result 11934 states and 32168 transitions. [2022-01-18 11:06:08,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:08,532 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:08,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:08,551 INFO L225 Difference]: With dead ends: 11934 [2022-01-18 11:06:08,551 INFO L226 Difference]: Without dead ends: 11449 [2022-01-18 11:06:08,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:06:08,551 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 223 mSDsluCounter, 3057 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 3304 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:08,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 3304 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:08,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11449 states. [2022-01-18 11:06:08,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11449 to 8992. [2022-01-18 11:06:08,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:08,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-01-18 11:06:08,721 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-01-18 11:06:08,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:08,722 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-01-18 11:06:08,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:08,722 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-01-18 11:06:08,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:08,735 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:08,735 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:08,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-01-18 11:06:08,735 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:08,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:08,736 INFO L85 PathProgramCache]: Analyzing trace with hash 492015636, now seen corresponding path program 146 times [2022-01-18 11:06:08,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:08,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111097931] [2022-01-18 11:06:08,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:08,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:08,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:08,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:08,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111097931] [2022-01-18 11:06:08,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111097931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:08,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:08,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:08,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027562708] [2022-01-18 11:06:08,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:08,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:08,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:08,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:08,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:08,878 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:09,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:09,334 INFO L93 Difference]: Finished difference Result 11868 states and 31991 transitions. [2022-01-18 11:06:09,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:06:09,334 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:09,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:09,350 INFO L225 Difference]: With dead ends: 11868 [2022-01-18 11:06:09,350 INFO L226 Difference]: Without dead ends: 11366 [2022-01-18 11:06:09,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:06:09,351 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 204 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 3433 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:09,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 3433 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:09,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11366 states. [2022-01-18 11:06:09,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11366 to 8972. [2022-01-18 11:06:09,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8972 states, 8971 states have (on average 2.701594025192286) internal successors, (24236), 8971 states have internal predecessors, (24236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:09,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 24236 transitions. [2022-01-18 11:06:09,476 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 24236 transitions. Word has length 109 [2022-01-18 11:06:09,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:09,476 INFO L470 AbstractCegarLoop]: Abstraction has 8972 states and 24236 transitions. [2022-01-18 11:06:09,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:09,476 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 24236 transitions. [2022-01-18 11:06:09,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:09,486 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:09,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:09,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-01-18 11:06:09,486 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:09,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:09,486 INFO L85 PathProgramCache]: Analyzing trace with hash -520821786, now seen corresponding path program 147 times [2022-01-18 11:06:09,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:09,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620489269] [2022-01-18 11:06:09,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:09,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:09,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:09,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:09,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620489269] [2022-01-18 11:06:09,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620489269] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:09,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:09,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:09,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477955490] [2022-01-18 11:06:09,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:09,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:09,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:09,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:09,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:09,601 INFO L87 Difference]: Start difference. First operand 8972 states and 24236 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:10,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:10,063 INFO L93 Difference]: Finished difference Result 11938 states and 32191 transitions. [2022-01-18 11:06:10,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:06:10,064 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:10,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:10,080 INFO L225 Difference]: With dead ends: 11938 [2022-01-18 11:06:10,080 INFO L226 Difference]: Without dead ends: 11453 [2022-01-18 11:06:10,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=1014, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:06:10,080 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 228 mSDsluCounter, 3020 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 3260 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:10,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 3260 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:10,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11453 states. [2022-01-18 11:06:10,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11453 to 8992. [2022-01-18 11:06:10,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:10,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-01-18 11:06:10,205 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-01-18 11:06:10,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:10,205 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-01-18 11:06:10,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:10,205 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-01-18 11:06:10,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:10,215 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:10,215 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:10,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-01-18 11:06:10,215 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:10,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:10,215 INFO L85 PathProgramCache]: Analyzing trace with hash 160798868, now seen corresponding path program 148 times [2022-01-18 11:06:10,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:10,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377543459] [2022-01-18 11:06:10,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:10,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:10,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:10,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:10,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377543459] [2022-01-18 11:06:10,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377543459] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:10,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:10,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:10,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495909819] [2022-01-18 11:06:10,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:10,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:10,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:10,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:10,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:10,331 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:10,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:10,805 INFO L93 Difference]: Finished difference Result 11904 states and 32102 transitions. [2022-01-18 11:06:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:10,805 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:10,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:10,820 INFO L225 Difference]: With dead ends: 11904 [2022-01-18 11:06:10,821 INFO L226 Difference]: Without dead ends: 11418 [2022-01-18 11:06:10,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=1094, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:06:10,821 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 212 mSDsluCounter, 3178 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:10,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3428 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:10,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11418 states. [2022-01-18 11:06:10,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11418 to 8988. [2022-01-18 11:06:10,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:10,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-01-18 11:06:10,944 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-01-18 11:06:10,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:10,944 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-01-18 11:06:10,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:10,944 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-01-18 11:06:10,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:10,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:10,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:10,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-01-18 11:06:10,954 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:10,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:10,954 INFO L85 PathProgramCache]: Analyzing trace with hash 861486424, now seen corresponding path program 149 times [2022-01-18 11:06:10,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:10,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048929900] [2022-01-18 11:06:10,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:10,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:11,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:11,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:11,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048929900] [2022-01-18 11:06:11,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048929900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:11,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:11,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:11,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127940210] [2022-01-18 11:06:11,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:11,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:11,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:11,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:11,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:11,073 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:11,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:11,660 INFO L93 Difference]: Finished difference Result 11940 states and 32197 transitions. [2022-01-18 11:06:11,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:06:11,660 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:11,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:11,676 INFO L225 Difference]: With dead ends: 11940 [2022-01-18 11:06:11,677 INFO L226 Difference]: Without dead ends: 11414 [2022-01-18 11:06:11,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=451, Invalid=1529, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:06:11,677 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 276 mSDsluCounter, 2819 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 3083 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:11,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 3083 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:06:11,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11414 states. [2022-01-18 11:06:11,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11414 to 8984. [2022-01-18 11:06:11,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:11,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-01-18 11:06:11,801 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-01-18 11:06:11,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:11,801 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-01-18 11:06:11,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:11,801 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-01-18 11:06:11,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:11,811 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:11,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:11,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-01-18 11:06:11,811 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:11,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:11,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1282590040, now seen corresponding path program 150 times [2022-01-18 11:06:11,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:11,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496807668] [2022-01-18 11:06:11,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:11,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:11,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:11,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:11,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496807668] [2022-01-18 11:06:11,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496807668] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:11,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:11,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:11,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313060583] [2022-01-18 11:06:11,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:11,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:11,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:11,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:11,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:11,941 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:12,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:12,655 INFO L93 Difference]: Finished difference Result 12168 states and 32796 transitions. [2022-01-18 11:06:12,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:06:12,655 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:12,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:12,671 INFO L225 Difference]: With dead ends: 12168 [2022-01-18 11:06:12,671 INFO L226 Difference]: Without dead ends: 11602 [2022-01-18 11:06:12,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=622, Invalid=2030, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:06:12,672 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 347 mSDsluCounter, 2860 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 3129 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:12,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 3129 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:06:12,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11602 states. [2022-01-18 11:06:12,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11602 to 8980. [2022-01-18 11:06:12,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701191669450941) internal successors, (24254), 8979 states have internal predecessors, (24254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:12,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-01-18 11:06:12,794 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-01-18 11:06:12,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:12,794 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-01-18 11:06:12,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:12,794 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-01-18 11:06:12,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:12,803 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:12,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:12,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-01-18 11:06:12,804 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:12,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:12,804 INFO L85 PathProgramCache]: Analyzing trace with hash 509822444, now seen corresponding path program 151 times [2022-01-18 11:06:12,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:12,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783594305] [2022-01-18 11:06:12,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:12,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:12,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:12,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:12,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783594305] [2022-01-18 11:06:12,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783594305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:12,937 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:12,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:12,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712213315] [2022-01-18 11:06:12,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:12,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:12,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:12,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:12,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:12,938 INFO L87 Difference]: Start difference. First operand 8980 states and 24254 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:13,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:13,416 INFO L93 Difference]: Finished difference Result 11914 states and 32121 transitions. [2022-01-18 11:06:13,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:06:13,423 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:13,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:13,444 INFO L225 Difference]: With dead ends: 11914 [2022-01-18 11:06:13,444 INFO L226 Difference]: Without dead ends: 11429 [2022-01-18 11:06:13,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:06:13,444 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 229 mSDsluCounter, 3023 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 3265 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:13,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 3265 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:13,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11429 states. [2022-01-18 11:06:13,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11429 to 8992. [2022-01-18 11:06:13,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:13,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-01-18 11:06:13,603 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-01-18 11:06:13,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:13,603 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-01-18 11:06:13,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:13,603 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-01-18 11:06:13,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:13,613 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:13,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:13,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-01-18 11:06:13,613 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:13,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:13,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1191443098, now seen corresponding path program 152 times [2022-01-18 11:06:13,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:13,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171585998] [2022-01-18 11:06:13,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:13,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:13,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:13,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:13,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171585998] [2022-01-18 11:06:13,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171585998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:13,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:13,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:13,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201693000] [2022-01-18 11:06:13,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:13,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:13,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:13,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:13,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:13,745 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:14,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:14,218 INFO L93 Difference]: Finished difference Result 11872 states and 32010 transitions. [2022-01-18 11:06:14,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:14,218 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:14,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:14,234 INFO L225 Difference]: With dead ends: 11872 [2022-01-18 11:06:14,235 INFO L226 Difference]: Without dead ends: 11386 [2022-01-18 11:06:14,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:06:14,235 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 211 mSDsluCounter, 3175 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 3426 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:14,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 3426 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:14,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11386 states. [2022-01-18 11:06:14,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11386 to 8988. [2022-01-18 11:06:14,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:14,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-01-18 11:06:14,356 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-01-18 11:06:14,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:14,356 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-01-18 11:06:14,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:14,356 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-01-18 11:06:14,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:14,366 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:14,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:14,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-01-18 11:06:14,366 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:14,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:14,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1892130654, now seen corresponding path program 153 times [2022-01-18 11:06:14,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:14,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638870113] [2022-01-18 11:06:14,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:14,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:14,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:14,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:14,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638870113] [2022-01-18 11:06:14,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638870113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:14,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:14,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:14,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914364285] [2022-01-18 11:06:14,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:14,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:14,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:14,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:14,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:14,482 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:15,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:15,066 INFO L93 Difference]: Finished difference Result 12040 states and 32452 transitions. [2022-01-18 11:06:15,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:06:15,066 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:15,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:15,082 INFO L225 Difference]: With dead ends: 12040 [2022-01-18 11:06:15,082 INFO L226 Difference]: Without dead ends: 11514 [2022-01-18 11:06:15,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=439, Invalid=1453, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:06:15,082 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 282 mSDsluCounter, 2977 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3237 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:15,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3237 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:15,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11514 states. [2022-01-18 11:06:15,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11514 to 8984. [2022-01-18 11:06:15,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:15,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-01-18 11:06:15,205 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-01-18 11:06:15,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:15,205 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-01-18 11:06:15,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:15,205 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-01-18 11:06:15,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:15,215 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:15,215 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:15,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-01-18 11:06:15,216 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:15,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:15,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1325148614, now seen corresponding path program 154 times [2022-01-18 11:06:15,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:15,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761476962] [2022-01-18 11:06:15,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:15,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:15,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:15,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:15,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761476962] [2022-01-18 11:06:15,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761476962] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:15,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:15,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:15,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312679652] [2022-01-18 11:06:15,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:15,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:15,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:15,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:15,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:15,332 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:15,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:15,893 INFO L93 Difference]: Finished difference Result 11958 states and 32213 transitions. [2022-01-18 11:06:15,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:06:15,893 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:15,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:15,909 INFO L225 Difference]: With dead ends: 11958 [2022-01-18 11:06:15,909 INFO L226 Difference]: Without dead ends: 11430 [2022-01-18 11:06:15,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=469, Invalid=1423, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:06:15,910 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 276 mSDsluCounter, 3279 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 3518 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:15,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 3518 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:15,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11430 states. [2022-01-18 11:06:16,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11430 to 8988. [2022-01-18 11:06:16,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:16,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-01-18 11:06:16,033 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-01-18 11:06:16,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:16,033 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-01-18 11:06:16,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:16,034 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-01-18 11:06:16,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:16,043 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:16,043 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:16,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-01-18 11:06:16,043 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:16,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:16,044 INFO L85 PathProgramCache]: Analyzing trace with hash 461786340, now seen corresponding path program 155 times [2022-01-18 11:06:16,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:16,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026144088] [2022-01-18 11:06:16,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:16,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:16,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:16,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:16,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026144088] [2022-01-18 11:06:16,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026144088] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:16,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:16,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:16,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023271987] [2022-01-18 11:06:16,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:16,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:16,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:16,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:16,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:16,159 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:16,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:16,683 INFO L93 Difference]: Finished difference Result 11858 states and 31959 transitions. [2022-01-18 11:06:16,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:16,684 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:16,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:16,699 INFO L225 Difference]: With dead ends: 11858 [2022-01-18 11:06:16,700 INFO L226 Difference]: Without dead ends: 11373 [2022-01-18 11:06:16,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=352, Invalid=1130, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:06:16,700 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 229 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 3283 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:16,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 3283 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:16,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11373 states. [2022-01-18 11:06:16,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11373 to 8992. [2022-01-18 11:06:16,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:16,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-01-18 11:06:16,826 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-01-18 11:06:16,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:16,826 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-01-18 11:06:16,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:16,827 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-01-18 11:06:16,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:16,837 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:16,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:16,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-01-18 11:06:16,837 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:16,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:16,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1143406994, now seen corresponding path program 156 times [2022-01-18 11:06:16,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:16,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354708221] [2022-01-18 11:06:16,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:16,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:16,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:16,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:16,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:16,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354708221] [2022-01-18 11:06:16,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354708221] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:16,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:16,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:16,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510467221] [2022-01-18 11:06:16,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:16,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:16,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:16,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:16,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:16,973 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:17,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:17,472 INFO L93 Difference]: Finished difference Result 11808 states and 31826 transitions. [2022-01-18 11:06:17,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:06:17,472 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:17,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:17,487 INFO L225 Difference]: With dead ends: 11808 [2022-01-18 11:06:17,488 INFO L226 Difference]: Without dead ends: 11310 [2022-01-18 11:06:17,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:06:17,488 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 204 mSDsluCounter, 3185 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 3437 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:17,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 3437 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:17,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11310 states. [2022-01-18 11:06:17,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11310 to 8976. [2022-01-18 11:06:17,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.7011699164345404) internal successors, (24243), 8975 states have internal predecessors, (24243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:17,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24243 transitions. [2022-01-18 11:06:17,610 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24243 transitions. Word has length 109 [2022-01-18 11:06:17,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:17,610 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24243 transitions. [2022-01-18 11:06:17,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:17,610 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24243 transitions. [2022-01-18 11:06:17,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:17,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:17,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:17,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-01-18 11:06:17,620 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:17,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:17,620 INFO L85 PathProgramCache]: Analyzing trace with hash 957822372, now seen corresponding path program 157 times [2022-01-18 11:06:17,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:17,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914364733] [2022-01-18 11:06:17,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:17,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:17,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:17,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:17,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914364733] [2022-01-18 11:06:17,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914364733] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:17,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:17,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:17,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716367711] [2022-01-18 11:06:17,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:17,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:17,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:17,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:17,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:17,733 INFO L87 Difference]: Start difference. First operand 8976 states and 24243 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:18,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:18,169 INFO L93 Difference]: Finished difference Result 11750 states and 31670 transitions. [2022-01-18 11:06:18,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:06:18,169 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:18,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:18,184 INFO L225 Difference]: With dead ends: 11750 [2022-01-18 11:06:18,184 INFO L226 Difference]: Without dead ends: 11265 [2022-01-18 11:06:18,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:06:18,185 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 222 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 3256 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:18,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 3256 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:18,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11265 states. [2022-01-18 11:06:18,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11265 to 8992. [2022-01-18 11:06:18,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:18,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-01-18 11:06:18,303 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-01-18 11:06:18,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:18,303 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-01-18 11:06:18,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:18,304 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-01-18 11:06:18,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:18,316 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:18,316 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:18,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-01-18 11:06:18,316 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:18,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:18,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1639443026, now seen corresponding path program 158 times [2022-01-18 11:06:18,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:18,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414853380] [2022-01-18 11:06:18,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:18,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:18,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:18,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:18,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414853380] [2022-01-18 11:06:18,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414853380] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:18,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:18,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:18,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579645908] [2022-01-18 11:06:18,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:18,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:18,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:18,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:18,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:18,429 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:18,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:18,882 INFO L93 Difference]: Finished difference Result 11720 states and 31592 transitions. [2022-01-18 11:06:18,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:18,883 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:18,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:18,898 INFO L225 Difference]: With dead ends: 11720 [2022-01-18 11:06:18,898 INFO L226 Difference]: Without dead ends: 11234 [2022-01-18 11:06:18,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:06:18,899 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 209 mSDsluCounter, 3186 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 3435 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:18,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 3435 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:18,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2022-01-18 11:06:19,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 8988. [2022-01-18 11:06:19,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:19,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-01-18 11:06:19,024 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-01-18 11:06:19,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:19,024 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-01-18 11:06:19,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:19,024 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-01-18 11:06:19,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:19,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:19,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:19,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-01-18 11:06:19,034 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:19,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:19,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1954836714, now seen corresponding path program 159 times [2022-01-18 11:06:19,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:19,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755032955] [2022-01-18 11:06:19,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:19,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:19,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:19,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:19,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755032955] [2022-01-18 11:06:19,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755032955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:19,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:19,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:19,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222244552] [2022-01-18 11:06:19,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:19,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:19,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:19,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:19,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:19,176 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:19,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:19,803 INFO L93 Difference]: Finished difference Result 11756 states and 31687 transitions. [2022-01-18 11:06:19,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:06:19,803 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:19,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:19,818 INFO L225 Difference]: With dead ends: 11756 [2022-01-18 11:06:19,819 INFO L226 Difference]: Without dead ends: 11230 [2022-01-18 11:06:19,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=441, Invalid=1539, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:06:19,819 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 264 mSDsluCounter, 2731 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:19,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 2996 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:19,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11230 states. [2022-01-18 11:06:19,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11230 to 8984. [2022-01-18 11:06:19,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:19,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-01-18 11:06:19,939 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-01-18 11:06:19,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:19,939 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-01-18 11:06:19,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:19,939 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-01-18 11:06:19,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:19,949 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:19,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:19,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-01-18 11:06:19,949 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:19,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:19,949 INFO L85 PathProgramCache]: Analyzing trace with hash 196054118, now seen corresponding path program 160 times [2022-01-18 11:06:19,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:19,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283542747] [2022-01-18 11:06:19,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:19,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:20,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:20,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:20,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283542747] [2022-01-18 11:06:20,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283542747] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:20,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:20,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:20,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518434642] [2022-01-18 11:06:20,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:20,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:20,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:20,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:20,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:20,068 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:20,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:20,810 INFO L93 Difference]: Finished difference Result 11792 states and 31782 transitions. [2022-01-18 11:06:20,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:06:20,810 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:20,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:20,838 INFO L225 Difference]: With dead ends: 11792 [2022-01-18 11:06:20,838 INFO L226 Difference]: Without dead ends: 11226 [2022-01-18 11:06:20,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 729 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=628, Invalid=2128, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:06:20,839 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 311 mSDsluCounter, 3076 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 3345 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:20,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 3345 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:20,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11226 states. [2022-01-18 11:06:20,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11226 to 8980. [2022-01-18 11:06:20,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:20,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-01-18 11:06:20,971 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-01-18 11:06:20,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:20,972 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-01-18 11:06:20,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:20,972 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-01-18 11:06:20,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:20,981 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:20,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:20,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-01-18 11:06:20,981 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:20,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:20,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1160245466, now seen corresponding path program 161 times [2022-01-18 11:06:20,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:20,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945212241] [2022-01-18 11:06:20,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:20,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:21,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:21,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:21,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945212241] [2022-01-18 11:06:21,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945212241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:21,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:21,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:21,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548354589] [2022-01-18 11:06:21,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:21,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:21,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:21,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:21,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:21,096 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:21,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:21,798 INFO L93 Difference]: Finished difference Result 11976 states and 32252 transitions. [2022-01-18 11:06:21,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 11:06:21,798 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:21,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:21,814 INFO L225 Difference]: With dead ends: 11976 [2022-01-18 11:06:21,814 INFO L226 Difference]: Without dead ends: 11362 [2022-01-18 11:06:21,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 935 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:06:21,815 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 405 mSDsluCounter, 3183 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:21,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 3452 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:06:21,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11362 states. [2022-01-18 11:06:21,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11362 to 8968. [2022-01-18 11:06:21,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8968 states, 8967 states have (on average 2.7015724322515893) internal successors, (24225), 8967 states have internal predecessors, (24225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:21,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8968 states to 8968 states and 24225 transitions. [2022-01-18 11:06:21,935 INFO L78 Accepts]: Start accepts. Automaton has 8968 states and 24225 transitions. Word has length 109 [2022-01-18 11:06:21,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:21,935 INFO L470 AbstractCegarLoop]: Abstraction has 8968 states and 24225 transitions. [2022-01-18 11:06:21,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:21,935 INFO L276 IsEmpty]: Start isEmpty. Operand 8968 states and 24225 transitions. [2022-01-18 11:06:21,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:21,945 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:21,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:21,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-01-18 11:06:21,945 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:21,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:21,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1809823296, now seen corresponding path program 162 times [2022-01-18 11:06:21,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:21,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448303088] [2022-01-18 11:06:21,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:21,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:22,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:22,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:22,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448303088] [2022-01-18 11:06:22,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448303088] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:22,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:22,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:22,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417503236] [2022-01-18 11:06:22,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:22,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:22,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:22,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:22,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:22,066 INFO L87 Difference]: Start difference. First operand 8968 states and 24225 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:22,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:22,540 INFO L93 Difference]: Finished difference Result 11686 states and 31498 transitions. [2022-01-18 11:06:22,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:06:22,540 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:22,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:22,555 INFO L225 Difference]: With dead ends: 11686 [2022-01-18 11:06:22,555 INFO L226 Difference]: Without dead ends: 11201 [2022-01-18 11:06:22,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:06:22,556 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 213 mSDsluCounter, 3028 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 3269 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:22,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 3269 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:22,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11201 states. [2022-01-18 11:06:22,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11201 to 8992. [2022-01-18 11:06:22,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:22,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-01-18 11:06:22,675 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-01-18 11:06:22,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:22,675 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-01-18 11:06:22,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:22,676 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-01-18 11:06:22,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:22,685 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:22,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:22,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-01-18 11:06:22,685 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:22,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:22,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1128202642, now seen corresponding path program 163 times [2022-01-18 11:06:22,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:22,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663277353] [2022-01-18 11:06:22,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:22,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:22,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:22,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:22,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663277353] [2022-01-18 11:06:22,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663277353] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:22,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:22,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:22,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702153045] [2022-01-18 11:06:22,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:22,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:22,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:22,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:22,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:22,796 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:23,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:23,261 INFO L93 Difference]: Finished difference Result 11652 states and 31409 transitions. [2022-01-18 11:06:23,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:23,262 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:23,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:23,277 INFO L225 Difference]: With dead ends: 11652 [2022-01-18 11:06:23,277 INFO L226 Difference]: Without dead ends: 11166 [2022-01-18 11:06:23,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:06:23,278 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 204 mSDsluCounter, 3013 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:23,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 3266 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:23,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11166 states. [2022-01-18 11:06:23,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11166 to 8988. [2022-01-18 11:06:23,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:23,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-01-18 11:06:23,416 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-01-18 11:06:23,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:23,416 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-01-18 11:06:23,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:23,416 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-01-18 11:06:23,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:23,426 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:23,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:23,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-01-18 11:06:23,427 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:23,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:23,427 INFO L85 PathProgramCache]: Analyzing trace with hash -427515086, now seen corresponding path program 164 times [2022-01-18 11:06:23,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:23,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333659779] [2022-01-18 11:06:23,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:23,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:23,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:23,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:23,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333659779] [2022-01-18 11:06:23,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333659779] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:23,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:23,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:23,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83995771] [2022-01-18 11:06:23,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:23,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:23,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:23,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:23,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:23,588 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:24,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:24,275 INFO L93 Difference]: Finished difference Result 11688 states and 31504 transitions. [2022-01-18 11:06:24,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:06:24,275 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:24,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:24,292 INFO L225 Difference]: With dead ends: 11688 [2022-01-18 11:06:24,292 INFO L226 Difference]: Without dead ends: 11162 [2022-01-18 11:06:24,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=475, Invalid=1595, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:06:24,293 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 269 mSDsluCounter, 2919 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 3182 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:24,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 3182 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:24,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11162 states. [2022-01-18 11:06:24,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11162 to 8984. [2022-01-18 11:06:24,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:24,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-01-18 11:06:24,432 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-01-18 11:06:24,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:24,432 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-01-18 11:06:24,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:24,433 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-01-18 11:06:24,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:24,446 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:24,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:24,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-01-18 11:06:24,446 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:24,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:24,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1723375746, now seen corresponding path program 165 times [2022-01-18 11:06:24,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:24,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561500020] [2022-01-18 11:06:24,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:24,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:24,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:24,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561500020] [2022-01-18 11:06:24,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561500020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:24,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:24,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:24,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805697189] [2022-01-18 11:06:24,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:24,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:24,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:24,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:24,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:24,645 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:25,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:25,368 INFO L93 Difference]: Finished difference Result 11832 states and 31872 transitions. [2022-01-18 11:06:25,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:06:25,368 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:25,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:25,384 INFO L225 Difference]: With dead ends: 11832 [2022-01-18 11:06:25,384 INFO L226 Difference]: Without dead ends: 11266 [2022-01-18 11:06:25,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=611, Invalid=1839, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 11:06:25,385 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 330 mSDsluCounter, 2569 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 2840 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:25,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 2840 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:25,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11266 states. [2022-01-18 11:06:25,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11266 to 8980. [2022-01-18 11:06:25,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701191669450941) internal successors, (24254), 8979 states have internal predecessors, (24254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:25,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-01-18 11:06:25,509 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-01-18 11:06:25,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:25,509 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-01-18 11:06:25,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:25,510 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-01-18 11:06:25,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:25,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:25,520 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:25,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-01-18 11:06:25,520 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:25,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:25,520 INFO L85 PathProgramCache]: Analyzing trace with hash -779179066, now seen corresponding path program 166 times [2022-01-18 11:06:25,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:25,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230848398] [2022-01-18 11:06:25,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:25,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:25,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:25,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:25,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230848398] [2022-01-18 11:06:25,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230848398] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:25,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:25,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:25,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345406825] [2022-01-18 11:06:25,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:25,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:25,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:25,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:25,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:25,644 INFO L87 Difference]: Start difference. First operand 8980 states and 24254 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:26,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:26,159 INFO L93 Difference]: Finished difference Result 11758 states and 31692 transitions. [2022-01-18 11:06:26,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:06:26,159 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:26,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:26,176 INFO L225 Difference]: With dead ends: 11758 [2022-01-18 11:06:26,176 INFO L226 Difference]: Without dead ends: 11273 [2022-01-18 11:06:26,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:06:26,177 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 221 mSDsluCounter, 3206 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3449 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:26,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3449 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:26,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11273 states. [2022-01-18 11:06:26,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11273 to 8992. [2022-01-18 11:06:26,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:26,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-01-18 11:06:26,312 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-01-18 11:06:26,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:26,312 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-01-18 11:06:26,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:26,312 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-01-18 11:06:26,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:26,322 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:26,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:26,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-01-18 11:06:26,323 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:26,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:26,323 INFO L85 PathProgramCache]: Analyzing trace with hash -97558412, now seen corresponding path program 167 times [2022-01-18 11:06:26,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:26,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618130753] [2022-01-18 11:06:26,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:26,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:26,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:26,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:26,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618130753] [2022-01-18 11:06:26,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618130753] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:26,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:26,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:26,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957020170] [2022-01-18 11:06:26,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:26,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:26,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:26,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:26,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:26,433 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:26,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:26,913 INFO L93 Difference]: Finished difference Result 11716 states and 31581 transitions. [2022-01-18 11:06:26,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:26,913 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:26,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:26,932 INFO L225 Difference]: With dead ends: 11716 [2022-01-18 11:06:26,932 INFO L226 Difference]: Without dead ends: 11230 [2022-01-18 11:06:26,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:06:26,932 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 210 mSDsluCounter, 3024 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 3280 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:26,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 3280 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:26,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11230 states. [2022-01-18 11:06:27,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11230 to 8988. [2022-01-18 11:06:27,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:27,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-01-18 11:06:27,099 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-01-18 11:06:27,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:27,099 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-01-18 11:06:27,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:27,099 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-01-18 11:06:27,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:27,117 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:27,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:27,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-01-18 11:06:27,117 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:27,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:27,118 INFO L85 PathProgramCache]: Analyzing trace with hash 603129144, now seen corresponding path program 168 times [2022-01-18 11:06:27,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:27,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919158998] [2022-01-18 11:06:27,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:27,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:27,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:27,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:27,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919158998] [2022-01-18 11:06:27,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919158998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:27,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:27,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:27,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133986160] [2022-01-18 11:06:27,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:27,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:27,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:27,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:27,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:27,288 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:27,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:27,887 INFO L93 Difference]: Finished difference Result 11844 states and 31913 transitions. [2022-01-18 11:06:27,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:06:27,887 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:27,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:27,903 INFO L225 Difference]: With dead ends: 11844 [2022-01-18 11:06:27,903 INFO L226 Difference]: Without dead ends: 11318 [2022-01-18 11:06:27,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=460, Invalid=1432, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:06:27,904 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 282 mSDsluCounter, 2541 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 2809 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:27,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 2809 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:06:27,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11318 states. [2022-01-18 11:06:28,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11318 to 8984. [2022-01-18 11:06:28,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:28,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-01-18 11:06:28,033 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-01-18 11:06:28,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:28,033 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-01-18 11:06:28,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:28,033 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-01-18 11:06:28,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:28,044 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:28,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:28,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-01-18 11:06:28,044 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:28,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:28,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1680817172, now seen corresponding path program 169 times [2022-01-18 11:06:28,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:28,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269378045] [2022-01-18 11:06:28,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:28,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:28,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:28,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:28,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269378045] [2022-01-18 11:06:28,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269378045] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:28,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:28,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:28,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793096460] [2022-01-18 11:06:28,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:28,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:28,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:28,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:28,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:28,202 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:29,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:29,026 INFO L93 Difference]: Finished difference Result 11846 states and 31905 transitions. [2022-01-18 11:06:29,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:06:29,027 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:29,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:29,046 INFO L225 Difference]: With dead ends: 11846 [2022-01-18 11:06:29,046 INFO L226 Difference]: Without dead ends: 11318 [2022-01-18 11:06:29,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=467, Invalid=1425, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:06:29,047 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 274 mSDsluCounter, 2866 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 3117 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:29,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 3117 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:06:29,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11318 states. [2022-01-18 11:06:29,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11318 to 8988. [2022-01-18 11:06:29,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:29,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-01-18 11:06:29,222 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-01-18 11:06:29,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:29,222 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-01-18 11:06:29,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:29,222 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-01-18 11:06:29,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:29,235 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:29,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:29,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-01-18 11:06:29,235 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:29,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:29,236 INFO L85 PathProgramCache]: Analyzing trace with hash -827215170, now seen corresponding path program 170 times [2022-01-18 11:06:29,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:29,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680708475] [2022-01-18 11:06:29,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:29,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:29,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:29,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:29,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680708475] [2022-01-18 11:06:29,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680708475] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:29,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:29,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:29,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861611784] [2022-01-18 11:06:29,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:29,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:29,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:29,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:29,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:29,390 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:29,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:29,999 INFO L93 Difference]: Finished difference Result 11698 states and 31519 transitions. [2022-01-18 11:06:29,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:29,999 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:30,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:30,019 INFO L225 Difference]: With dead ends: 11698 [2022-01-18 11:06:30,019 INFO L226 Difference]: Without dead ends: 11213 [2022-01-18 11:06:30,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=343, Invalid=1139, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:06:30,020 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 218 mSDsluCounter, 3214 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 3460 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:30,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 3460 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:30,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11213 states. [2022-01-18 11:06:30,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11213 to 8992. [2022-01-18 11:06:30,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:30,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-01-18 11:06:30,185 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-01-18 11:06:30,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:30,185 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-01-18 11:06:30,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:30,185 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-01-18 11:06:30,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:30,198 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:30,198 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:30,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-01-18 11:06:30,198 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:30,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:30,199 INFO L85 PathProgramCache]: Analyzing trace with hash -145594516, now seen corresponding path program 171 times [2022-01-18 11:06:30,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:30,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040604283] [2022-01-18 11:06:30,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:30,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:30,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:30,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:30,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040604283] [2022-01-18 11:06:30,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040604283] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:30,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:30,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:30,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462944897] [2022-01-18 11:06:30,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:30,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:30,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:30,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:30,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:30,331 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:30,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:30,858 INFO L93 Difference]: Finished difference Result 11616 states and 31298 transitions. [2022-01-18 11:06:30,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:06:30,858 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:30,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:30,877 INFO L225 Difference]: With dead ends: 11616 [2022-01-18 11:06:30,878 INFO L226 Difference]: Without dead ends: 11118 [2022-01-18 11:06:30,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=310, Invalid=1022, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:06:30,878 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 208 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:30,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 3089 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:30,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11118 states. [2022-01-18 11:06:31,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11118 to 8976. [2022-01-18 11:06:31,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.7011699164345404) internal successors, (24243), 8975 states have internal predecessors, (24243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:31,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24243 transitions. [2022-01-18 11:06:31,042 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24243 transitions. Word has length 109 [2022-01-18 11:06:31,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:31,042 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24243 transitions. [2022-01-18 11:06:31,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:31,042 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24243 transitions. [2022-01-18 11:06:31,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:31,057 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:31,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:31,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-01-18 11:06:31,057 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:31,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:31,058 INFO L85 PathProgramCache]: Analyzing trace with hash 302765246, now seen corresponding path program 172 times [2022-01-18 11:06:31,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:31,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096519901] [2022-01-18 11:06:31,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:31,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:31,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:31,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:31,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096519901] [2022-01-18 11:06:31,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096519901] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:31,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:31,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:31,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775071979] [2022-01-18 11:06:31,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:31,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:31,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:31,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:31,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:31,290 INFO L87 Difference]: Start difference. First operand 8976 states and 24243 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:31,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:31,774 INFO L93 Difference]: Finished difference Result 11794 states and 31791 transitions. [2022-01-18 11:06:31,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:06:31,774 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:31,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:31,790 INFO L225 Difference]: With dead ends: 11794 [2022-01-18 11:06:31,790 INFO L226 Difference]: Without dead ends: 11309 [2022-01-18 11:06:31,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=320, Invalid=1086, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:06:31,791 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 227 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 3127 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:31,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 3127 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:31,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11309 states. [2022-01-18 11:06:31,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11309 to 8992. [2022-01-18 11:06:31,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:31,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-01-18 11:06:31,923 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-01-18 11:06:31,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:31,924 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-01-18 11:06:31,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:31,924 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-01-18 11:06:31,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:31,938 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:31,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:31,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-01-18 11:06:31,938 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:31,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:31,939 INFO L85 PathProgramCache]: Analyzing trace with hash 984385900, now seen corresponding path program 173 times [2022-01-18 11:06:31,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:31,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506859838] [2022-01-18 11:06:31,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:31,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:32,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:32,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:32,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506859838] [2022-01-18 11:06:32,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506859838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:32,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:32,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:32,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90962159] [2022-01-18 11:06:32,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:32,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:32,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:32,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:32,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:32,080 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:32,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:32,743 INFO L93 Difference]: Finished difference Result 11752 states and 31680 transitions. [2022-01-18 11:06:32,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:32,744 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:32,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:32,761 INFO L225 Difference]: With dead ends: 11752 [2022-01-18 11:06:32,761 INFO L226 Difference]: Without dead ends: 11266 [2022-01-18 11:06:32,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:06:32,762 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 213 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:32,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 3108 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:32,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11266 states. [2022-01-18 11:06:32,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11266 to 8988. [2022-01-18 11:06:32,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:32,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-01-18 11:06:32,917 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-01-18 11:06:32,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:32,917 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-01-18 11:06:32,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:32,917 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-01-18 11:06:32,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:32,931 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:32,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:32,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-01-18 11:06:32,931 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:32,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:32,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1685073456, now seen corresponding path program 174 times [2022-01-18 11:06:32,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:32,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328549821] [2022-01-18 11:06:32,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:32,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:33,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:33,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:33,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328549821] [2022-01-18 11:06:33,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328549821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:33,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:33,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:33,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799395934] [2022-01-18 11:06:33,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:33,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:33,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:33,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:33,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:33,118 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:33,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:33,849 INFO L93 Difference]: Finished difference Result 11860 states and 31957 transitions. [2022-01-18 11:06:33,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:06:33,849 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:33,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:33,866 INFO L225 Difference]: With dead ends: 11860 [2022-01-18 11:06:33,866 INFO L226 Difference]: Without dead ends: 11334 [2022-01-18 11:06:33,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=452, Invalid=1440, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:06:33,867 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 275 mSDsluCounter, 3262 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 3519 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:33,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 3519 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:33,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2022-01-18 11:06:34,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 8984. [2022-01-18 11:06:34,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:34,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-01-18 11:06:34,111 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-01-18 11:06:34,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:34,111 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-01-18 11:06:34,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:34,112 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-01-18 11:06:34,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:34,126 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:34,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:34,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-01-18 11:06:34,127 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:34,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:34,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1532205812, now seen corresponding path program 175 times [2022-01-18 11:06:34,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:34,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389273916] [2022-01-18 11:06:34,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:34,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:34,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:34,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:34,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389273916] [2022-01-18 11:06:34,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389273916] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:34,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:34,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:34,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024212533] [2022-01-18 11:06:34,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:34,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:34,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:34,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:34,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:34,275 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:34,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:34,862 INFO L93 Difference]: Finished difference Result 11958 states and 32213 transitions. [2022-01-18 11:06:34,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:06:34,862 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:34,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:34,878 INFO L225 Difference]: With dead ends: 11958 [2022-01-18 11:06:34,878 INFO L226 Difference]: Without dead ends: 11430 [2022-01-18 11:06:34,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=481, Invalid=1589, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:06:34,878 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 281 mSDsluCounter, 3159 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 3406 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:34,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 3406 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:34,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11430 states. [2022-01-18 11:06:34,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11430 to 8988. [2022-01-18 11:06:34,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:34,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-01-18 11:06:34,998 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-01-18 11:06:34,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:34,998 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-01-18 11:06:34,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:34,998 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-01-18 11:06:35,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:35,008 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:35,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:35,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-01-18 11:06:35,008 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:35,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:35,008 INFO L85 PathProgramCache]: Analyzing trace with hash 254729142, now seen corresponding path program 176 times [2022-01-18 11:06:35,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:35,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852947925] [2022-01-18 11:06:35,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:35,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:35,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:35,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:35,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852947925] [2022-01-18 11:06:35,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852947925] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:35,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:35,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:35,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773371979] [2022-01-18 11:06:35,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:35,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:35,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:35,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:35,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:35,121 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:35,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:35,607 INFO L93 Difference]: Finished difference Result 11794 states and 31783 transitions. [2022-01-18 11:06:35,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:35,607 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:35,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:35,623 INFO L225 Difference]: With dead ends: 11794 [2022-01-18 11:06:35,623 INFO L226 Difference]: Without dead ends: 11309 [2022-01-18 11:06:35,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=338, Invalid=1144, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:06:35,623 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 222 mSDsluCounter, 3226 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 3473 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:35,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 3473 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:35,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11309 states. [2022-01-18 11:06:35,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11309 to 8992. [2022-01-18 11:06:35,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:35,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-01-18 11:06:35,754 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-01-18 11:06:35,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:35,754 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-01-18 11:06:35,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:35,755 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-01-18 11:06:35,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:35,766 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:35,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:35,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-01-18 11:06:35,766 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:35,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:35,766 INFO L85 PathProgramCache]: Analyzing trace with hash 936349796, now seen corresponding path program 177 times [2022-01-18 11:06:35,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:35,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662753828] [2022-01-18 11:06:35,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:35,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:35,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:35,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:35,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662753828] [2022-01-18 11:06:35,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662753828] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:35,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:35,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:35,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190881671] [2022-01-18 11:06:35,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:35,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:35,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:35,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:35,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:35,877 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:36,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:36,337 INFO L93 Difference]: Finished difference Result 11728 states and 31606 transitions. [2022-01-18 11:06:36,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:06:36,337 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:36,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:36,356 INFO L225 Difference]: With dead ends: 11728 [2022-01-18 11:06:36,356 INFO L226 Difference]: Without dead ends: 11234 [2022-01-18 11:06:36,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=1017, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:06:36,356 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 210 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 3267 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:36,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 3267 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:36,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2022-01-18 11:06:36,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 8980. [2022-01-18 11:06:36,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:36,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-01-18 11:06:36,502 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-01-18 11:06:36,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:36,503 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-01-18 11:06:36,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:36,503 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-01-18 11:06:36,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:36,516 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:36,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:36,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-01-18 11:06:36,516 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:36,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:36,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1259283648, now seen corresponding path program 178 times [2022-01-18 11:06:36,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:36,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769282491] [2022-01-18 11:06:36,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:36,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:36,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:36,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:36,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769282491] [2022-01-18 11:06:36,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769282491] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:36,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:36,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:36,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836956571] [2022-01-18 11:06:36,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:36,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:36,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:36,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:36,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:36,634 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:37,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:37,305 INFO L93 Difference]: Finished difference Result 11979 states and 32252 transitions. [2022-01-18 11:06:37,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:06:37,305 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:37,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:37,320 INFO L225 Difference]: With dead ends: 11979 [2022-01-18 11:06:37,320 INFO L226 Difference]: Without dead ends: 11408 [2022-01-18 11:06:37,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=661, Invalid=2095, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:06:37,321 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 346 mSDsluCounter, 3075 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 3322 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:37,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 3322 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:37,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11408 states. [2022-01-18 11:06:37,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11408 to 8984. [2022-01-18 11:06:37,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.70032283201603) internal successors, (24257), 8983 states have internal predecessors, (24257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:37,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24257 transitions. [2022-01-18 11:06:37,441 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24257 transitions. Word has length 109 [2022-01-18 11:06:37,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:37,442 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24257 transitions. [2022-01-18 11:06:37,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:37,442 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24257 transitions. [2022-01-18 11:06:37,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:37,451 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:37,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:37,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-01-18 11:06:37,451 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:37,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:37,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1246121194, now seen corresponding path program 179 times [2022-01-18 11:06:37,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:37,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245544403] [2022-01-18 11:06:37,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:37,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:37,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:37,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:37,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245544403] [2022-01-18 11:06:37,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245544403] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:37,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:37,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:37,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331489895] [2022-01-18 11:06:37,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:37,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:37,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:37,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:37,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:37,561 INFO L87 Difference]: Start difference. First operand 8984 states and 24257 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:38,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:38,143 INFO L93 Difference]: Finished difference Result 11862 states and 31945 transitions. [2022-01-18 11:06:38,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:06:38,144 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:38,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:38,159 INFO L225 Difference]: With dead ends: 11862 [2022-01-18 11:06:38,160 INFO L226 Difference]: Without dead ends: 11334 [2022-01-18 11:06:38,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=493, Invalid=1669, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:06:38,160 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 279 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 3565 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:38,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 3565 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:38,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2022-01-18 11:06:38,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 8988. [2022-01-18 11:06:38,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.6998998553466116) internal successors, (24264), 8987 states have internal predecessors, (24264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:38,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24264 transitions. [2022-01-18 11:06:38,294 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24264 transitions. Word has length 109 [2022-01-18 11:06:38,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:38,295 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24264 transitions. [2022-01-18 11:06:38,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:38,295 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24264 transitions. [2022-01-18 11:06:38,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:38,308 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:38,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:38,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-01-18 11:06:38,309 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:38,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:38,309 INFO L85 PathProgramCache]: Analyzing trace with hash 540813760, now seen corresponding path program 180 times [2022-01-18 11:06:38,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:38,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662762908] [2022-01-18 11:06:38,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:38,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:38,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:38,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:38,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662762908] [2022-01-18 11:06:38,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662762908] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:38,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:38,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:38,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365177070] [2022-01-18 11:06:38,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:38,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:38,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:38,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:38,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:38,448 INFO L87 Difference]: Start difference. First operand 8988 states and 24264 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:38,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:38,925 INFO L93 Difference]: Finished difference Result 11714 states and 31559 transitions. [2022-01-18 11:06:38,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:38,925 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:38,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:38,940 INFO L225 Difference]: With dead ends: 11714 [2022-01-18 11:06:38,940 INFO L226 Difference]: Without dead ends: 11229 [2022-01-18 11:06:38,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:06:38,940 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 230 mSDsluCounter, 2885 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 3132 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:38,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 3132 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:38,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11229 states. [2022-01-18 11:06:39,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11229 to 8992. [2022-01-18 11:06:39,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.6994772550328108) internal successors, (24271), 8991 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:39,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24271 transitions. [2022-01-18 11:06:39,081 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24271 transitions. Word has length 109 [2022-01-18 11:06:39,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:39,081 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24271 transitions. [2022-01-18 11:06:39,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:39,081 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24271 transitions. [2022-01-18 11:06:39,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:39,095 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:39,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:39,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-01-18 11:06:39,095 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:39,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:39,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1222434414, now seen corresponding path program 181 times [2022-01-18 11:06:39,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:39,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202125441] [2022-01-18 11:06:39,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:39,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:39,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:39,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:39,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202125441] [2022-01-18 11:06:39,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202125441] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:39,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:39,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:39,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818684007] [2022-01-18 11:06:39,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:39,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:39,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:39,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:39,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:39,213 INFO L87 Difference]: Start difference. First operand 8992 states and 24271 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:39,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:39,631 INFO L93 Difference]: Finished difference Result 11616 states and 31294 transitions. [2022-01-18 11:06:39,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:06:39,632 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:39,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:39,646 INFO L225 Difference]: With dead ends: 11616 [2022-01-18 11:06:39,646 INFO L226 Difference]: Without dead ends: 11114 [2022-01-18 11:06:39,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=961, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:06:39,647 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 209 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:39,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 3076 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:06:39,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11114 states. [2022-01-18 11:06:39,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11114 to 8972. [2022-01-18 11:06:39,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8972 states, 8971 states have (on average 2.701148144019619) internal successors, (24232), 8971 states have internal predecessors, (24232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:39,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 24232 transitions. [2022-01-18 11:06:39,765 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 24232 transitions. Word has length 109 [2022-01-18 11:06:39,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:39,765 INFO L470 AbstractCegarLoop]: Abstraction has 8972 states and 24232 transitions. [2022-01-18 11:06:39,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:39,765 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 24232 transitions. [2022-01-18 11:06:39,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:39,775 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:39,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:39,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-01-18 11:06:39,775 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:39,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:39,775 INFO L85 PathProgramCache]: Analyzing trace with hash -690474580, now seen corresponding path program 182 times [2022-01-18 11:06:39,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:39,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330141946] [2022-01-18 11:06:39,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:39,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:39,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:39,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:39,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330141946] [2022-01-18 11:06:39,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330141946] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:39,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:39,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:39,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943185259] [2022-01-18 11:06:39,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:39,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:39,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:39,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:39,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:39,882 INFO L87 Difference]: Start difference. First operand 8972 states and 24232 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:40,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:40,416 INFO L93 Difference]: Finished difference Result 11622 states and 31318 transitions. [2022-01-18 11:06:40,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:06:40,417 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:40,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:40,432 INFO L225 Difference]: With dead ends: 11622 [2022-01-18 11:06:40,432 INFO L226 Difference]: Without dead ends: 11137 [2022-01-18 11:06:40,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:06:40,433 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 217 mSDsluCounter, 3050 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 3294 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:40,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 3294 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:40,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11137 states. [2022-01-18 11:06:40,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11137 to 8992. [2022-01-18 11:06:40,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:40,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-01-18 11:06:40,551 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-01-18 11:06:40,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:40,551 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-01-18 11:06:40,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:40,551 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-01-18 11:06:40,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:40,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:40,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:40,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-01-18 11:06:40,561 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:40,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:40,561 INFO L85 PathProgramCache]: Analyzing trace with hash -8853926, now seen corresponding path program 183 times [2022-01-18 11:06:40,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:40,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136532105] [2022-01-18 11:06:40,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:40,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:40,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:40,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:40,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136532105] [2022-01-18 11:06:40,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136532105] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:40,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:40,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:40,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193033320] [2022-01-18 11:06:40,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:40,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:40,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:40,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:40,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:40,843 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:41,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:41,348 INFO L93 Difference]: Finished difference Result 11580 states and 31207 transitions. [2022-01-18 11:06:41,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:41,349 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:41,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:41,363 INFO L225 Difference]: With dead ends: 11580 [2022-01-18 11:06:41,364 INFO L226 Difference]: Without dead ends: 11094 [2022-01-18 11:06:41,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:06:41,364 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 207 mSDsluCounter, 2858 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:41,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 3115 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:41,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11094 states. [2022-01-18 11:06:41,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11094 to 8988. [2022-01-18 11:06:41,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:41,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-01-18 11:06:41,485 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-01-18 11:06:41,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:41,485 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-01-18 11:06:41,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:41,485 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-01-18 11:06:41,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:41,495 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:41,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:41,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-01-18 11:06:41,495 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:41,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:41,495 INFO L85 PathProgramCache]: Analyzing trace with hash 691833630, now seen corresponding path program 184 times [2022-01-18 11:06:41,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:41,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319418239] [2022-01-18 11:06:41,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:41,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:41,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:41,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:41,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319418239] [2022-01-18 11:06:41,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319418239] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:41,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:41,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:41,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567087759] [2022-01-18 11:06:41,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:41,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:41,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:41,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:41,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:41,640 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:42,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:42,200 INFO L93 Difference]: Finished difference Result 11688 states and 31484 transitions. [2022-01-18 11:06:42,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:06:42,200 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:42,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:42,215 INFO L225 Difference]: With dead ends: 11688 [2022-01-18 11:06:42,215 INFO L226 Difference]: Without dead ends: 11162 [2022-01-18 11:06:42,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=440, Invalid=1282, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 11:06:42,216 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 275 mSDsluCounter, 3075 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 3332 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:42,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 3332 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:06:42,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11162 states. [2022-01-18 11:06:42,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11162 to 8984. [2022-01-18 11:06:42,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:42,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-01-18 11:06:42,399 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-01-18 11:06:42,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:42,399 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-01-18 11:06:42,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:42,400 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-01-18 11:06:42,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:42,412 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:42,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:42,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-01-18 11:06:42,412 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:42,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:42,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1769521658, now seen corresponding path program 185 times [2022-01-18 11:06:42,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:42,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237703107] [2022-01-18 11:06:42,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:42,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:42,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:42,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:42,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237703107] [2022-01-18 11:06:42,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237703107] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:42,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:42,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:42,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406717561] [2022-01-18 11:06:42,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:42,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:42,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:42,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:42,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:42,522 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:43,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:43,091 INFO L93 Difference]: Finished difference Result 11786 states and 31740 transitions. [2022-01-18 11:06:43,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:06:43,091 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:43,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:43,107 INFO L225 Difference]: With dead ends: 11786 [2022-01-18 11:06:43,107 INFO L226 Difference]: Without dead ends: 11258 [2022-01-18 11:06:43,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:06:43,107 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 282 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3251 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:43,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3251 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:43,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11258 states. [2022-01-18 11:06:43,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11258 to 8988. [2022-01-18 11:06:43,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:43,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-01-18 11:06:43,257 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-01-18 11:06:43,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:43,257 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-01-18 11:06:43,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:43,257 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-01-18 11:06:43,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:43,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:43,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:43,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-01-18 11:06:43,271 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:43,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:43,271 INFO L85 PathProgramCache]: Analyzing trace with hash -738510684, now seen corresponding path program 186 times [2022-01-18 11:06:43,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:43,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871799343] [2022-01-18 11:06:43,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:43,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:43,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:43,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:43,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871799343] [2022-01-18 11:06:43,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871799343] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:43,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:43,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:43,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165160275] [2022-01-18 11:06:43,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:43,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:43,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:43,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:43,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:43,417 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:44,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:44,037 INFO L93 Difference]: Finished difference Result 11622 states and 31310 transitions. [2022-01-18 11:06:44,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:44,037 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:44,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:44,057 INFO L225 Difference]: With dead ends: 11622 [2022-01-18 11:06:44,057 INFO L226 Difference]: Without dead ends: 11137 [2022-01-18 11:06:44,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1148, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:06:44,058 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 219 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 3319 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:44,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 3319 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:44,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11137 states. [2022-01-18 11:06:44,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11137 to 8992. [2022-01-18 11:06:44,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:44,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-01-18 11:06:44,205 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-01-18 11:06:44,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:44,205 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-01-18 11:06:44,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:44,205 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-01-18 11:06:44,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:44,217 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:44,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:44,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-01-18 11:06:44,217 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:44,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:44,218 INFO L85 PathProgramCache]: Analyzing trace with hash -56890030, now seen corresponding path program 187 times [2022-01-18 11:06:44,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:44,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386065727] [2022-01-18 11:06:44,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:44,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:44,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:44,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:44,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386065727] [2022-01-18 11:06:44,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386065727] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:44,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:44,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:44,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6428896] [2022-01-18 11:06:44,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:44,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:44,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:44,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:44,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:44,348 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:44,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:44,842 INFO L93 Difference]: Finished difference Result 11556 states and 31133 transitions. [2022-01-18 11:06:44,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:06:44,842 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:44,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:44,858 INFO L225 Difference]: With dead ends: 11556 [2022-01-18 11:06:44,858 INFO L226 Difference]: Without dead ends: 11062 [2022-01-18 11:06:44,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:06:44,859 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 213 mSDsluCounter, 2679 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:44,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2936 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:44,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11062 states. [2022-01-18 11:06:44,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11062 to 8980. [2022-01-18 11:06:45,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:45,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-01-18 11:06:45,027 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-01-18 11:06:45,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:45,027 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-01-18 11:06:45,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:45,027 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-01-18 11:06:45,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:45,039 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:45,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:45,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-01-18 11:06:45,039 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:45,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:45,040 INFO L85 PathProgramCache]: Analyzing trace with hash 266043822, now seen corresponding path program 188 times [2022-01-18 11:06:45,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:45,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644309034] [2022-01-18 11:06:45,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:45,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:45,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:45,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:45,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644309034] [2022-01-18 11:06:45,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644309034] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:45,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:45,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:45,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762049803] [2022-01-18 11:06:45,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:45,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:45,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:45,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:45,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:45,165 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:45,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:45,942 INFO L93 Difference]: Finished difference Result 11919 states and 32087 transitions. [2022-01-18 11:06:45,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:06:45,942 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:45,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:45,962 INFO L225 Difference]: With dead ends: 11919 [2022-01-18 11:06:45,963 INFO L226 Difference]: Without dead ends: 11348 [2022-01-18 11:06:45,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=665, Invalid=2091, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:06:45,963 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 342 mSDsluCounter, 2646 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 2904 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:45,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 2904 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:45,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11348 states. [2022-01-18 11:06:46,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11348 to 8984. [2022-01-18 11:06:46,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.70032283201603) internal successors, (24257), 8983 states have internal predecessors, (24257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:46,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24257 transitions. [2022-01-18 11:06:46,128 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24257 transitions. Word has length 109 [2022-01-18 11:06:46,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:46,128 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24257 transitions. [2022-01-18 11:06:46,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:46,129 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24257 transitions. [2022-01-18 11:06:46,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:46,143 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:46,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:46,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-01-18 11:06:46,143 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:46,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:46,143 INFO L85 PathProgramCache]: Analyzing trace with hash 2055606276, now seen corresponding path program 189 times [2022-01-18 11:06:46,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:46,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161549103] [2022-01-18 11:06:46,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:46,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:46,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:46,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:46,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161549103] [2022-01-18 11:06:46,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161549103] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:46,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:46,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:46,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896365762] [2022-01-18 11:06:46,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:46,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:46,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:46,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:46,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:46,260 INFO L87 Difference]: Start difference. First operand 8984 states and 24257 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:46,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:46,936 INFO L93 Difference]: Finished difference Result 11794 states and 31758 transitions. [2022-01-18 11:06:46,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:06:46,937 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:46,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:46,953 INFO L225 Difference]: With dead ends: 11794 [2022-01-18 11:06:46,953 INFO L226 Difference]: Without dead ends: 11266 [2022-01-18 11:06:46,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=484, Invalid=1678, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:06:46,954 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 274 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 3264 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:46,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 3264 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:46,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11266 states. [2022-01-18 11:06:47,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11266 to 8988. [2022-01-18 11:06:47,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.6998998553466116) internal successors, (24264), 8987 states have internal predecessors, (24264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:47,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24264 transitions. [2022-01-18 11:06:47,090 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24264 transitions. Word has length 109 [2022-01-18 11:06:47,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:47,090 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24264 transitions. [2022-01-18 11:06:47,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:47,091 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24264 transitions. [2022-01-18 11:06:47,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:47,103 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:47,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:47,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-01-18 11:06:47,103 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:47,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:47,103 INFO L85 PathProgramCache]: Analyzing trace with hash -452426066, now seen corresponding path program 190 times [2022-01-18 11:06:47,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:47,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21157300] [2022-01-18 11:06:47,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:47,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:47,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:47,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:47,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21157300] [2022-01-18 11:06:47,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21157300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:47,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:47,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:47,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452058405] [2022-01-18 11:06:47,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:47,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:47,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:47,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:47,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:47,234 INFO L87 Difference]: Start difference. First operand 8988 states and 24264 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:47,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:47,815 INFO L93 Difference]: Finished difference Result 11630 states and 31328 transitions. [2022-01-18 11:06:47,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:47,816 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:47,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:47,832 INFO L225 Difference]: With dead ends: 11630 [2022-01-18 11:06:47,832 INFO L226 Difference]: Without dead ends: 11145 [2022-01-18 11:06:47,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=326, Invalid=1080, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:06:47,832 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 214 mSDsluCounter, 2634 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2887 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:47,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2887 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:47,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11145 states. [2022-01-18 11:06:47,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11145 to 8992. [2022-01-18 11:06:47,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.6994772550328108) internal successors, (24271), 8991 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:47,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24271 transitions. [2022-01-18 11:06:47,978 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24271 transitions. Word has length 109 [2022-01-18 11:06:47,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:47,978 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24271 transitions. [2022-01-18 11:06:47,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:47,978 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24271 transitions. [2022-01-18 11:06:47,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:47,991 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:47,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:47,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-01-18 11:06:47,991 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:47,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:47,992 INFO L85 PathProgramCache]: Analyzing trace with hash 229194588, now seen corresponding path program 191 times [2022-01-18 11:06:47,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:47,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618510038] [2022-01-18 11:06:47,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:47,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:48,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:48,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:48,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618510038] [2022-01-18 11:06:48,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618510038] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:48,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:48,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:48,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997238566] [2022-01-18 11:06:48,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:48,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:48,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:48,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:48,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:48,118 INFO L87 Difference]: Start difference. First operand 8992 states and 24271 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:48,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:48,554 INFO L93 Difference]: Finished difference Result 11556 states and 31129 transitions. [2022-01-18 11:06:48,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:06:48,554 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:48,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:48,570 INFO L225 Difference]: With dead ends: 11556 [2022-01-18 11:06:48,570 INFO L226 Difference]: Without dead ends: 11058 [2022-01-18 11:06:48,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:06:48,570 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 203 mSDsluCounter, 2849 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:48,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 3101 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:06:48,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11058 states. [2022-01-18 11:06:48,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11058 to 8976. [2022-01-18 11:06:48,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.700724233983287) internal successors, (24239), 8975 states have internal predecessors, (24239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:48,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24239 transitions. [2022-01-18 11:06:48,714 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24239 transitions. Word has length 109 [2022-01-18 11:06:48,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:48,715 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24239 transitions. [2022-01-18 11:06:48,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:48,715 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24239 transitions. [2022-01-18 11:06:48,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:48,727 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:48,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:48,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-01-18 11:06:48,727 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:48,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:48,728 INFO L85 PathProgramCache]: Analyzing trace with hash 903686232, now seen corresponding path program 192 times [2022-01-18 11:06:48,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:48,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724281139] [2022-01-18 11:06:48,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:48,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:48,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:48,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:48,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724281139] [2022-01-18 11:06:48,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724281139] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:48,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:48,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:48,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361677362] [2022-01-18 11:06:48,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:48,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:48,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:48,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:48,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:48,844 INFO L87 Difference]: Start difference. First operand 8976 states and 24239 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:49,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:49,673 INFO L93 Difference]: Finished difference Result 11747 states and 31589 transitions. [2022-01-18 11:06:49,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:06:49,673 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:49,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:49,694 INFO L225 Difference]: With dead ends: 11747 [2022-01-18 11:06:49,694 INFO L226 Difference]: Without dead ends: 11133 [2022-01-18 11:06:49,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 926 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=796, Invalid=2510, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:06:49,695 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 416 mSDsluCounter, 3084 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:49,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 3339 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:49,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11133 states. [2022-01-18 11:06:49,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11133 to 8980. [2022-01-18 11:06:49,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.700300701637153) internal successors, (24246), 8979 states have internal predecessors, (24246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:49,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24246 transitions. [2022-01-18 11:06:49,871 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24246 transitions. Word has length 109 [2022-01-18 11:06:49,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:49,871 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24246 transitions. [2022-01-18 11:06:49,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:49,872 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24246 transitions. [2022-01-18 11:06:49,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:49,886 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:49,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:49,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-01-18 11:06:49,887 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:49,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:49,887 INFO L85 PathProgramCache]: Analyzing trace with hash -153609922, now seen corresponding path program 193 times [2022-01-18 11:06:49,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:49,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065314524] [2022-01-18 11:06:49,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:49,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:49,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:50,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:50,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:50,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065314524] [2022-01-18 11:06:50,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065314524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:50,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:50,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:50,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799278029] [2022-01-18 11:06:50,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:50,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:50,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:50,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:50,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:50,027 INFO L87 Difference]: Start difference. First operand 8980 states and 24246 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:50,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:50,737 INFO L93 Difference]: Finished difference Result 11783 states and 31709 transitions. [2022-01-18 11:06:50,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:06:50,738 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:50,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:50,753 INFO L225 Difference]: With dead ends: 11783 [2022-01-18 11:06:50,753 INFO L226 Difference]: Without dead ends: 11212 [2022-01-18 11:06:50,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 807 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=675, Invalid=2295, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:06:50,754 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 365 mSDsluCounter, 2689 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 2942 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:50,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 2942 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:50,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11212 states. [2022-01-18 11:06:50,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11212 to 8984. [2022-01-18 11:06:50,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.699877546476678) internal successors, (24253), 8983 states have internal predecessors, (24253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:50,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24253 transitions. [2022-01-18 11:06:50,890 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24253 transitions. Word has length 109 [2022-01-18 11:06:50,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:50,891 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24253 transitions. [2022-01-18 11:06:50,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:50,891 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24253 transitions. [2022-01-18 11:06:50,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:50,900 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:50,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:50,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-01-18 11:06:50,901 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:50,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:50,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1635952532, now seen corresponding path program 194 times [2022-01-18 11:06:50,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:50,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762988388] [2022-01-18 11:06:50,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:50,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:51,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:51,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:51,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762988388] [2022-01-18 11:06:51,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762988388] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:51,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:51,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:51,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470476352] [2022-01-18 11:06:51,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:51,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:51,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:51,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:51,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:51,040 INFO L87 Difference]: Start difference. First operand 8984 states and 24253 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:51,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:51,722 INFO L93 Difference]: Finished difference Result 11658 states and 31380 transitions. [2022-01-18 11:06:51,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:06:51,722 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:51,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:51,736 INFO L225 Difference]: With dead ends: 11658 [2022-01-18 11:06:51,736 INFO L226 Difference]: Without dead ends: 11130 [2022-01-18 11:06:51,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:06:51,737 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 272 mSDsluCounter, 2457 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 2716 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:51,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 2716 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:06:51,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11130 states. [2022-01-18 11:06:51,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11130 to 8988. [2022-01-18 11:06:51,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.6994547679982195) internal successors, (24260), 8987 states have internal predecessors, (24260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:51,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24260 transitions. [2022-01-18 11:06:51,881 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24260 transitions. Word has length 109 [2022-01-18 11:06:51,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:51,881 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24260 transitions. [2022-01-18 11:06:51,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:51,881 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24260 transitions. [2022-01-18 11:06:51,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:51,892 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:51,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:51,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-01-18 11:06:51,892 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:51,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:51,892 INFO L85 PathProgramCache]: Analyzing trace with hash -872079810, now seen corresponding path program 195 times [2022-01-18 11:06:51,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:51,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775256197] [2022-01-18 11:06:51,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:51,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:52,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:52,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:52,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775256197] [2022-01-18 11:06:52,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775256197] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:52,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:52,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:52,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244053349] [2022-01-18 11:06:52,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:52,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:52,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:52,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:52,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:52,013 INFO L87 Difference]: Start difference. First operand 8988 states and 24260 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:52,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:52,560 INFO L93 Difference]: Finished difference Result 11494 states and 30950 transitions. [2022-01-18 11:06:52,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:52,560 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:52,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:52,578 INFO L225 Difference]: With dead ends: 11494 [2022-01-18 11:06:52,578 INFO L226 Difference]: Without dead ends: 11009 [2022-01-18 11:06:52,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:06:52,579 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 211 mSDsluCounter, 2746 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2993 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:52,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 2993 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:52,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11009 states. [2022-01-18 11:06:52,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11009 to 8992. [2022-01-18 11:06:52,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.6990323656990323) internal successors, (24267), 8991 states have internal predecessors, (24267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:52,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24267 transitions. [2022-01-18 11:06:52,742 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24267 transitions. Word has length 109 [2022-01-18 11:06:52,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:52,742 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24267 transitions. [2022-01-18 11:06:52,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:52,743 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24267 transitions. [2022-01-18 11:06:52,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:52,754 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:52,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:52,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-01-18 11:06:52,754 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:52,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:52,754 INFO L85 PathProgramCache]: Analyzing trace with hash -190459156, now seen corresponding path program 196 times [2022-01-18 11:06:52,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:52,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568740467] [2022-01-18 11:06:52,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:52,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:52,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:52,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:52,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568740467] [2022-01-18 11:06:52,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568740467] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:52,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:52,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:52,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699035432] [2022-01-18 11:06:52,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:52,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:52,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:52,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:52,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:52,877 INFO L87 Difference]: Start difference. First operand 8992 states and 24267 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:53,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:53,285 INFO L93 Difference]: Finished difference Result 11420 states and 30751 transitions. [2022-01-18 11:06:53,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:06:53,285 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:53,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:53,300 INFO L225 Difference]: With dead ends: 11420 [2022-01-18 11:06:53,300 INFO L226 Difference]: Without dead ends: 10910 [2022-01-18 11:06:53,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=292, Invalid=898, Unknown=0, NotChecked=0, Total=1190 [2022-01-18 11:06:53,301 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 208 mSDsluCounter, 2495 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:53,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 2746 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:06:53,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10910 states. [2022-01-18 11:06:53,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10910 to 8964. [2022-01-18 11:06:53,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8964 states, 8963 states have (on average 2.7015508200379337) internal successors, (24214), 8963 states have internal predecessors, (24214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:53,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8964 states to 8964 states and 24214 transitions. [2022-01-18 11:06:53,431 INFO L78 Accepts]: Start accepts. Automaton has 8964 states and 24214 transitions. Word has length 109 [2022-01-18 11:06:53,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:53,432 INFO L470 AbstractCegarLoop]: Abstraction has 8964 states and 24214 transitions. [2022-01-18 11:06:53,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:53,432 INFO L276 IsEmpty]: Start isEmpty. Operand 8964 states and 24214 transitions. [2022-01-18 11:06:53,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:53,445 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:53,445 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:53,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-01-18 11:06:53,445 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:53,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:53,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1602299128, now seen corresponding path program 197 times [2022-01-18 11:06:53,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:53,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357578894] [2022-01-18 11:06:53,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:53,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:53,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:53,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:53,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357578894] [2022-01-18 11:06:53,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357578894] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:53,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:53,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:53,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001145417] [2022-01-18 11:06:53,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:53,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:53,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:53,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:53,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:53,569 INFO L87 Difference]: Start difference. First operand 8964 states and 24214 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:54,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:54,138 INFO L93 Difference]: Finished difference Result 11530 states and 31069 transitions. [2022-01-18 11:06:54,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:06:54,139 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:54,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:54,158 INFO L225 Difference]: With dead ends: 11530 [2022-01-18 11:06:54,158 INFO L226 Difference]: Without dead ends: 11045 [2022-01-18 11:06:54,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:06:54,158 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 271 mSDsluCounter, 3160 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 3419 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:54,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 3419 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:54,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11045 states. [2022-01-18 11:06:54,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11045 to 8996. [2022-01-18 11:06:54,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.7012784880489162) internal successors, (24298), 8995 states have internal predecessors, (24298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:54,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24298 transitions. [2022-01-18 11:06:54,318 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24298 transitions. Word has length 109 [2022-01-18 11:06:54,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:54,318 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24298 transitions. [2022-01-18 11:06:54,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:54,318 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24298 transitions. [2022-01-18 11:06:54,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:54,331 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:54,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:54,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-01-18 11:06:54,332 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:54,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:54,332 INFO L85 PathProgramCache]: Analyzing trace with hash -920678474, now seen corresponding path program 198 times [2022-01-18 11:06:54,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:54,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352860072] [2022-01-18 11:06:54,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:54,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:54,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:54,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:54,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352860072] [2022-01-18 11:06:54,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352860072] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:54,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:54,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:54,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466770670] [2022-01-18 11:06:54,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:54,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:54,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:54,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:54,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:54,464 INFO L87 Difference]: Start difference. First operand 8996 states and 24298 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:54,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:54,984 INFO L93 Difference]: Finished difference Result 11496 states and 30980 transitions. [2022-01-18 11:06:54,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:54,984 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:54,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:54,999 INFO L225 Difference]: With dead ends: 11496 [2022-01-18 11:06:55,000 INFO L226 Difference]: Without dead ends: 11010 [2022-01-18 11:06:55,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:06:55,000 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 265 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 3635 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:55,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 3635 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:55,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2022-01-18 11:06:55,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 8992. [2022-01-18 11:06:55,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:55,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-01-18 11:06:55,158 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-01-18 11:06:55,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:55,158 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-01-18 11:06:55,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:55,158 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-01-18 11:06:55,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:55,170 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:55,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:55,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-01-18 11:06:55,170 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:55,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:55,170 INFO L85 PathProgramCache]: Analyzing trace with hash -219990918, now seen corresponding path program 199 times [2022-01-18 11:06:55,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:55,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731305992] [2022-01-18 11:06:55,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:55,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:55,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:55,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:55,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731305992] [2022-01-18 11:06:55,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731305992] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:55,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:55,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:55,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445117392] [2022-01-18 11:06:55,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:55,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:55,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:55,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:55,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:55,283 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:55,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:55,936 INFO L93 Difference]: Finished difference Result 11532 states and 31075 transitions. [2022-01-18 11:06:55,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:06:55,937 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:55,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:55,952 INFO L225 Difference]: With dead ends: 11532 [2022-01-18 11:06:55,953 INFO L226 Difference]: Without dead ends: 11006 [2022-01-18 11:06:55,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=482, Invalid=1588, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:06:55,953 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 324 mSDsluCounter, 3457 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 3733 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:55,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 3733 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:55,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11006 states. [2022-01-18 11:06:56,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11006 to 8988. [2022-01-18 11:06:56,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:56,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-01-18 11:06:56,086 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-01-18 11:06:56,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:56,086 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-01-18 11:06:56,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:56,086 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-01-18 11:06:56,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:56,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:56,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:56,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-01-18 11:06:56,098 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:56,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:56,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1930899914, now seen corresponding path program 200 times [2022-01-18 11:06:56,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:56,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124371024] [2022-01-18 11:06:56,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:56,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:56,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:56,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:56,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124371024] [2022-01-18 11:06:56,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124371024] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:56,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:56,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:56,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466779910] [2022-01-18 11:06:56,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:56,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:56,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:56,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:56,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:56,231 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:57,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:57,061 INFO L93 Difference]: Finished difference Result 11704 states and 31520 transitions. [2022-01-18 11:06:57,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:06:57,061 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:57,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:57,077 INFO L225 Difference]: With dead ends: 11704 [2022-01-18 11:06:57,078 INFO L226 Difference]: Without dead ends: 11138 [2022-01-18 11:06:57,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=636, Invalid=2016, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:06:57,078 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 409 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 2753 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:57,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 2753 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:06:57,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11138 states. [2022-01-18 11:06:57,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11138 to 8984. [2022-01-18 11:06:57,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:57,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-01-18 11:06:57,236 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-01-18 11:06:57,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:57,236 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-01-18 11:06:57,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:57,236 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-01-18 11:06:57,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:57,249 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:57,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:57,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-01-18 11:06:57,250 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:57,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:57,250 INFO L85 PathProgramCache]: Analyzing trace with hash -571654898, now seen corresponding path program 201 times [2022-01-18 11:06:57,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:57,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967901740] [2022-01-18 11:06:57,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:57,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:57,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:57,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:57,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967901740] [2022-01-18 11:06:57,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967901740] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:57,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:57,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:57,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493112231] [2022-01-18 11:06:57,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:57,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:57,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:57,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:57,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:57,464 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:58,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:58,126 INFO L93 Difference]: Finished difference Result 11606 states and 31274 transitions. [2022-01-18 11:06:58,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:06:58,126 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:58,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:58,144 INFO L225 Difference]: With dead ends: 11606 [2022-01-18 11:06:58,144 INFO L226 Difference]: Without dead ends: 11121 [2022-01-18 11:06:58,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:06:58,144 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 277 mSDsluCounter, 3166 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:58,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 3428 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:58,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11121 states. [2022-01-18 11:06:58,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11121 to 8996. [2022-01-18 11:06:58,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700833796553641) internal successors, (24294), 8995 states have internal predecessors, (24294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:58,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-01-18 11:06:58,296 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-01-18 11:06:58,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:58,296 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-01-18 11:06:58,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:58,296 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-01-18 11:06:58,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:58,309 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:58,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:58,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-01-18 11:06:58,309 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:58,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:58,309 INFO L85 PathProgramCache]: Analyzing trace with hash 109965756, now seen corresponding path program 202 times [2022-01-18 11:06:58,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:58,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429655378] [2022-01-18 11:06:58,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:58,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:58,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:58,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:58,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429655378] [2022-01-18 11:06:58,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429655378] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:58,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:58,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:58,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876452815] [2022-01-18 11:06:58,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:58,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:58,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:58,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:58,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:58,469 INFO L87 Difference]: Start difference. First operand 8996 states and 24294 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:59,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:59,053 INFO L93 Difference]: Finished difference Result 11564 states and 31163 transitions. [2022-01-18 11:06:59,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:06:59,053 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:59,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:59,070 INFO L225 Difference]: With dead ends: 11564 [2022-01-18 11:06:59,070 INFO L226 Difference]: Without dead ends: 11078 [2022-01-18 11:06:59,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:06:59,070 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 275 mSDsluCounter, 2953 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 3227 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:59,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 3227 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:06:59,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11078 states. [2022-01-18 11:06:59,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11078 to 8992. [2022-01-18 11:06:59,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:59,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-01-18 11:06:59,195 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-01-18 11:06:59,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:06:59,195 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-01-18 11:06:59,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:59,195 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-01-18 11:06:59,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:06:59,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:06:59,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:06:59,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-01-18 11:06:59,205 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:06:59,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:06:59,205 INFO L85 PathProgramCache]: Analyzing trace with hash 810653312, now seen corresponding path program 203 times [2022-01-18 11:06:59,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:06:59,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128455021] [2022-01-18 11:06:59,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:06:59,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:06:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:06:59,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:06:59,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:06:59,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128455021] [2022-01-18 11:06:59,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128455021] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:06:59,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:06:59,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:06:59,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777908522] [2022-01-18 11:06:59,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:06:59,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:06:59,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:06:59,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:06:59,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:06:59,318 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:06:59,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:06:59,914 INFO L93 Difference]: Finished difference Result 11692 states and 31495 transitions. [2022-01-18 11:06:59,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:06:59,914 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:06:59,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:06:59,929 INFO L225 Difference]: With dead ends: 11692 [2022-01-18 11:06:59,929 INFO L226 Difference]: Without dead ends: 11166 [2022-01-18 11:06:59,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=469, Invalid=1511, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:06:59,930 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 344 mSDsluCounter, 3157 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 3436 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:06:59,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 3436 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:06:59,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11166 states. [2022-01-18 11:07:00,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11166 to 8988. [2022-01-18 11:07:00,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:00,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-01-18 11:07:00,052 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-01-18 11:07:00,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:00,052 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-01-18 11:07:00,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:00,052 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-01-18 11:07:00,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:00,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:00,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:00,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-01-18 11:07:00,062 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:00,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:00,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1888341340, now seen corresponding path program 204 times [2022-01-18 11:07:00,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:00,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221650237] [2022-01-18 11:07:00,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:00,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:00,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:00,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:00,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221650237] [2022-01-18 11:07:00,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221650237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:00,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:00,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:00,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458291614] [2022-01-18 11:07:00,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:00,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:00,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:00,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:00,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:00,174 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:00,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:00,812 INFO L93 Difference]: Finished difference Result 11694 states and 31487 transitions. [2022-01-18 11:07:00,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:07:00,812 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:00,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:00,826 INFO L225 Difference]: With dead ends: 11694 [2022-01-18 11:07:00,826 INFO L226 Difference]: Without dead ends: 11166 [2022-01-18 11:07:00,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=515, Invalid=1465, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:07:00,827 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 333 mSDsluCounter, 2965 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 3234 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:00,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 3234 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:00,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11166 states. [2022-01-18 11:07:00,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11166 to 8992. [2022-01-18 11:07:00,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:00,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-01-18 11:07:00,949 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-01-18 11:07:00,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:00,949 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-01-18 11:07:00,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:00,949 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-01-18 11:07:00,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:00,959 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:00,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:00,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-01-18 11:07:00,960 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:00,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:00,960 INFO L85 PathProgramCache]: Analyzing trace with hash -619691002, now seen corresponding path program 205 times [2022-01-18 11:07:00,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:00,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994527119] [2022-01-18 11:07:00,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:00,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:01,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:01,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:01,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994527119] [2022-01-18 11:07:01,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994527119] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:01,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:01,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:01,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221048547] [2022-01-18 11:07:01,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:01,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:01,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:01,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:01,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:01,068 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:01,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:01,557 INFO L93 Difference]: Finished difference Result 11546 states and 31101 transitions. [2022-01-18 11:07:01,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:01,557 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:01,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:01,573 INFO L225 Difference]: With dead ends: 11546 [2022-01-18 11:07:01,574 INFO L226 Difference]: Without dead ends: 11061 [2022-01-18 11:07:01,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 11:07:01,574 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 276 mSDsluCounter, 3183 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 3448 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:01,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 3448 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:01,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11061 states. [2022-01-18 11:07:01,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11061 to 8996. [2022-01-18 11:07:01,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.699944413563091) internal successors, (24286), 8995 states have internal predecessors, (24286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:01,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24286 transitions. [2022-01-18 11:07:01,717 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24286 transitions. Word has length 109 [2022-01-18 11:07:01,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:01,717 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24286 transitions. [2022-01-18 11:07:01,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:01,717 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24286 transitions. [2022-01-18 11:07:01,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:01,731 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:01,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:01,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-01-18 11:07:01,732 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:01,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:01,733 INFO L85 PathProgramCache]: Analyzing trace with hash 61929652, now seen corresponding path program 206 times [2022-01-18 11:07:01,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:01,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597516627] [2022-01-18 11:07:01,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:01,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:01,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:01,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:01,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:01,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597516627] [2022-01-18 11:07:01,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597516627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:01,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:01,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:01,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704043457] [2022-01-18 11:07:01,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:01,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:01,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:01,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:01,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:01,909 INFO L87 Difference]: Start difference. First operand 8996 states and 24286 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:02,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:02,542 INFO L93 Difference]: Finished difference Result 11464 states and 30880 transitions. [2022-01-18 11:07:02,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:07:02,542 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:02,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:02,558 INFO L225 Difference]: With dead ends: 11464 [2022-01-18 11:07:02,558 INFO L226 Difference]: Without dead ends: 10966 [2022-01-18 11:07:02,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:07:02,558 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 262 mSDsluCounter, 3359 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 3626 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:02,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 3626 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:07:02,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10966 states. [2022-01-18 11:07:02,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10966 to 8980. [2022-01-18 11:07:02,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701191669450941) internal successors, (24254), 8979 states have internal predecessors, (24254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:02,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-01-18 11:07:02,692 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-01-18 11:07:02,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:02,692 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-01-18 11:07:02,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:02,692 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-01-18 11:07:02,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:02,704 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:02,705 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:02,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-01-18 11:07:02,705 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:02,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:02,705 INFO L85 PathProgramCache]: Analyzing trace with hash 510289414, now seen corresponding path program 207 times [2022-01-18 11:07:02,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:02,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358665052] [2022-01-18 11:07:02,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:02,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:02,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:02,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:02,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:02,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358665052] [2022-01-18 11:07:02,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358665052] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:02,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:02,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:02,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840861262] [2022-01-18 11:07:02,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:02,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:02,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:02,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:02,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:02,826 INFO L87 Difference]: Start difference. First operand 8980 states and 24254 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:03,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:03,306 INFO L93 Difference]: Finished difference Result 11482 states and 30933 transitions. [2022-01-18 11:07:03,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:07:03,307 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:03,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:03,323 INFO L225 Difference]: With dead ends: 11482 [2022-01-18 11:07:03,323 INFO L226 Difference]: Without dead ends: 10997 [2022-01-18 11:07:03,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=354, Invalid=1128, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:07:03,324 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 273 mSDsluCounter, 3371 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 3630 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:03,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 3630 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:07:03,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10997 states. [2022-01-18 11:07:03,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10997 to 8996. [2022-01-18 11:07:03,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700833796553641) internal successors, (24294), 8995 states have internal predecessors, (24294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:03,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-01-18 11:07:03,511 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-01-18 11:07:03,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:03,511 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-01-18 11:07:03,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:03,512 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-01-18 11:07:03,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:03,526 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:03,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:03,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-01-18 11:07:03,529 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:03,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:03,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1191910068, now seen corresponding path program 208 times [2022-01-18 11:07:03,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:03,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152931151] [2022-01-18 11:07:03,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:03,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:03,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:03,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:03,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152931151] [2022-01-18 11:07:03,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152931151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:03,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:03,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:03,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524597587] [2022-01-18 11:07:03,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:03,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:03,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:03,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:03,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:03,669 INFO L87 Difference]: Start difference. First operand 8996 states and 24294 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:04,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:04,199 INFO L93 Difference]: Finished difference Result 11440 states and 30822 transitions. [2022-01-18 11:07:04,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:04,200 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:04,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:04,223 INFO L225 Difference]: With dead ends: 11440 [2022-01-18 11:07:04,223 INFO L226 Difference]: Without dead ends: 10954 [2022-01-18 11:07:04,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=348, Invalid=1134, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:07:04,224 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 263 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:04,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 3641 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:07:04,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10954 states. [2022-01-18 11:07:04,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10954 to 8992. [2022-01-18 11:07:04,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:04,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-01-18 11:07:04,371 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-01-18 11:07:04,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:04,371 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-01-18 11:07:04,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:04,371 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-01-18 11:07:04,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:04,381 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:04,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:04,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-01-18 11:07:04,382 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:04,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:04,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1892597624, now seen corresponding path program 209 times [2022-01-18 11:07:04,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:04,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614006848] [2022-01-18 11:07:04,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:04,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:04,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:04,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:04,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614006848] [2022-01-18 11:07:04,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614006848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:04,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:04,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:04,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129392898] [2022-01-18 11:07:04,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:04,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:04,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:04,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:04,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:04,506 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:05,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:05,075 INFO L93 Difference]: Finished difference Result 11568 states and 31154 transitions. [2022-01-18 11:07:05,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:07:05,076 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:05,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:05,091 INFO L225 Difference]: With dead ends: 11568 [2022-01-18 11:07:05,091 INFO L226 Difference]: Without dead ends: 11042 [2022-01-18 11:07:05,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=458, Invalid=1434, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:07:05,092 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 347 mSDsluCounter, 2502 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 2785 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:05,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 2785 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:05,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-01-18 11:07:05,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8988. [2022-01-18 11:07:05,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:05,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-01-18 11:07:05,222 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-01-18 11:07:05,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:05,222 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-01-18 11:07:05,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:05,222 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-01-18 11:07:05,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:05,232 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:05,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:05,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-01-18 11:07:05,232 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:05,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:05,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1324681644, now seen corresponding path program 210 times [2022-01-18 11:07:05,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:05,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810629229] [2022-01-18 11:07:05,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:05,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:05,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:05,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:05,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810629229] [2022-01-18 11:07:05,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810629229] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:05,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:05,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:05,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289142007] [2022-01-18 11:07:05,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:05,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:05,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:05,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:05,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:05,355 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:05,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:05,990 INFO L93 Difference]: Finished difference Result 11650 states and 31366 transitions. [2022-01-18 11:07:05,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:07:05,990 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:05,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:06,006 INFO L225 Difference]: With dead ends: 11650 [2022-01-18 11:07:06,006 INFO L226 Difference]: Without dead ends: 11122 [2022-01-18 11:07:06,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=528, Invalid=1542, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:07:06,006 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 332 mSDsluCounter, 2970 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 3240 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:06,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 3240 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:06,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11122 states. [2022-01-18 11:07:06,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11122 to 8992. [2022-01-18 11:07:06,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:06,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-01-18 11:07:06,127 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-01-18 11:07:06,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:06,127 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-01-18 11:07:06,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:06,128 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-01-18 11:07:06,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:06,138 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:06,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:06,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-01-18 11:07:06,138 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:06,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:06,138 INFO L85 PathProgramCache]: Analyzing trace with hash 462253310, now seen corresponding path program 211 times [2022-01-18 11:07:06,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:06,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047767513] [2022-01-18 11:07:06,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:06,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:06,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:06,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:06,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047767513] [2022-01-18 11:07:06,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047767513] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:06,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:06,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:06,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371080375] [2022-01-18 11:07:06,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:06,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:06,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:06,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:06,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:06,247 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:06,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:06,722 INFO L93 Difference]: Finished difference Result 11486 states and 30936 transitions. [2022-01-18 11:07:06,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:06,723 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:06,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:06,737 INFO L225 Difference]: With dead ends: 11486 [2022-01-18 11:07:06,737 INFO L226 Difference]: Without dead ends: 11001 [2022-01-18 11:07:06,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=373, Invalid=1187, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 11:07:06,738 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 275 mSDsluCounter, 2984 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 3251 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:06,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 3251 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:06,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11001 states. [2022-01-18 11:07:06,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11001 to 8996. [2022-01-18 11:07:06,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.699944413563091) internal successors, (24286), 8995 states have internal predecessors, (24286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:06,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24286 transitions. [2022-01-18 11:07:06,858 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24286 transitions. Word has length 109 [2022-01-18 11:07:06,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:06,858 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24286 transitions. [2022-01-18 11:07:06,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:06,859 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24286 transitions. [2022-01-18 11:07:06,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:06,868 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:06,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:06,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-01-18 11:07:06,869 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:06,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:06,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1143873964, now seen corresponding path program 212 times [2022-01-18 11:07:06,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:06,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247286767] [2022-01-18 11:07:06,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:06,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:06,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:06,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:06,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247286767] [2022-01-18 11:07:06,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247286767] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:06,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:06,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:06,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385963910] [2022-01-18 11:07:06,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:06,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:06,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:06,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:06,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:06,974 INFO L87 Difference]: Start difference. First operand 8996 states and 24286 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:07,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:07,417 INFO L93 Difference]: Finished difference Result 11420 states and 30759 transitions. [2022-01-18 11:07:07,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:07:07,417 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:07,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:07,432 INFO L225 Difference]: With dead ends: 11420 [2022-01-18 11:07:07,433 INFO L226 Difference]: Without dead ends: 10926 [2022-01-18 11:07:07,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:07:07,433 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 261 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 3634 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:07,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 3634 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:07,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10926 states. [2022-01-18 11:07:07,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10926 to 8984. [2022-01-18 11:07:07,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:07,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-01-18 11:07:07,559 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-01-18 11:07:07,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:07,559 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-01-18 11:07:07,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:07,559 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-01-18 11:07:07,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:07,569 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:07,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:07,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-01-18 11:07:07,569 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:07,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:07,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1466807816, now seen corresponding path program 213 times [2022-01-18 11:07:07,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:07,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11040316] [2022-01-18 11:07:07,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:07,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:07,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:07,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:07,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11040316] [2022-01-18 11:07:07,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11040316] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:07,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:07,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:07,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706536840] [2022-01-18 11:07:07,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:07,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:07,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:07,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:07,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:07,678 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:08,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:08,316 INFO L93 Difference]: Finished difference Result 11535 states and 31031 transitions. [2022-01-18 11:07:08,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:07:08,316 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:08,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:08,332 INFO L225 Difference]: With dead ends: 11535 [2022-01-18 11:07:08,332 INFO L226 Difference]: Without dead ends: 10964 [2022-01-18 11:07:08,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=684, Invalid=1968, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:07:08,332 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 383 mSDsluCounter, 3476 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 3740 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:08,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 3740 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:07:08,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10964 states. [2022-01-18 11:07:08,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10964 to 8988. [2022-01-18 11:07:08,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:08,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-01-18 11:07:08,462 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-01-18 11:07:08,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:08,462 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-01-18 11:07:08,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:08,462 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-01-18 11:07:08,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:08,473 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:08,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:08,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-01-18 11:07:08,473 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:08,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:08,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1038597026, now seen corresponding path program 214 times [2022-01-18 11:07:08,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:08,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812648858] [2022-01-18 11:07:08,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:08,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:08,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:08,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:08,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812648858] [2022-01-18 11:07:08,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812648858] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:08,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:08,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:08,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290023371] [2022-01-18 11:07:08,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:08,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:08,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:08,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:08,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:08,581 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:09,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:09,296 INFO L93 Difference]: Finished difference Result 11546 states and 31076 transitions. [2022-01-18 11:07:09,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:07:09,296 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:09,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:09,312 INFO L225 Difference]: With dead ends: 11546 [2022-01-18 11:07:09,312 INFO L226 Difference]: Without dead ends: 11018 [2022-01-18 11:07:09,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=545, Invalid=1711, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 11:07:09,313 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 361 mSDsluCounter, 3389 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 3649 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:09,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 3649 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:07:09,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11018 states. [2022-01-18 11:07:09,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11018 to 8992. [2022-01-18 11:07:09,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:09,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-01-18 11:07:09,447 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-01-18 11:07:09,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:09,448 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-01-18 11:07:09,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:09,448 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-01-18 11:07:09,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:09,459 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:09,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:09,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-01-18 11:07:09,459 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:09,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:09,459 INFO L85 PathProgramCache]: Analyzing trace with hash 748337928, now seen corresponding path program 215 times [2022-01-18 11:07:09,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:09,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882198499] [2022-01-18 11:07:09,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:09,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:09,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:09,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:09,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882198499] [2022-01-18 11:07:09,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882198499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:09,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:09,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:09,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312108875] [2022-01-18 11:07:09,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:09,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:09,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:09,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:09,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:09,584 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:10,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:10,063 INFO L93 Difference]: Finished difference Result 11382 states and 30646 transitions. [2022-01-18 11:07:10,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:10,063 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:10,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:10,080 INFO L225 Difference]: With dead ends: 11382 [2022-01-18 11:07:10,080 INFO L226 Difference]: Without dead ends: 10897 [2022-01-18 11:07:10,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=369, Invalid=1191, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 11:07:10,081 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 272 mSDsluCounter, 2783 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 3048 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:10,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 3048 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:10,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10897 states. [2022-01-18 11:07:10,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10897 to 8996. [2022-01-18 11:07:10,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.6994997220678156) internal successors, (24282), 8995 states have internal predecessors, (24282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:10,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24282 transitions. [2022-01-18 11:07:10,208 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24282 transitions. Word has length 109 [2022-01-18 11:07:10,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:10,208 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24282 transitions. [2022-01-18 11:07:10,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:10,208 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24282 transitions. [2022-01-18 11:07:10,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:10,218 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:10,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:10,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-01-18 11:07:10,218 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:10,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:10,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1429958582, now seen corresponding path program 216 times [2022-01-18 11:07:10,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:10,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471542113] [2022-01-18 11:07:10,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:10,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:10,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:10,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:10,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471542113] [2022-01-18 11:07:10,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471542113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:10,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:10,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:10,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314384432] [2022-01-18 11:07:10,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:10,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:10,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:10,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:10,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:10,326 INFO L87 Difference]: Start difference. First operand 8996 states and 24282 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:10,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:10,709 INFO L93 Difference]: Finished difference Result 11316 states and 30469 transitions. [2022-01-18 11:07:10,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:07:10,709 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:10,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:10,724 INFO L225 Difference]: With dead ends: 11316 [2022-01-18 11:07:10,724 INFO L226 Difference]: Without dead ends: 10814 [2022-01-18 11:07:10,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:07:10,724 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 267 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:10,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 2791 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:10,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10814 states. [2022-01-18 11:07:10,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10814 to 8976. [2022-01-18 11:07:10,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.7011699164345404) internal successors, (24243), 8975 states have internal predecessors, (24243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:10,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24243 transitions. [2022-01-18 11:07:10,843 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24243 transitions. Word has length 109 [2022-01-18 11:07:10,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:10,843 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24243 transitions. [2022-01-18 11:07:10,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:10,843 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24243 transitions. [2022-01-18 11:07:10,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:10,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:10,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:10,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-01-18 11:07:10,853 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:10,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:10,853 INFO L85 PathProgramCache]: Analyzing trace with hash 417121160, now seen corresponding path program 217 times [2022-01-18 11:07:10,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:10,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021646145] [2022-01-18 11:07:10,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:10,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:10,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:10,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:10,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021646145] [2022-01-18 11:07:10,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021646145] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:10,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:10,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:10,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573213493] [2022-01-18 11:07:10,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:10,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:10,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:10,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:10,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:10,962 INFO L87 Difference]: Start difference. First operand 8976 states and 24243 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:11,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:11,409 INFO L93 Difference]: Finished difference Result 11594 states and 31241 transitions. [2022-01-18 11:07:11,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:07:11,410 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:11,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:11,425 INFO L225 Difference]: With dead ends: 11594 [2022-01-18 11:07:11,425 INFO L226 Difference]: Without dead ends: 11109 [2022-01-18 11:07:11,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:07:11,425 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 306 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 3359 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:11,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 3359 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:11,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11109 states. [2022-01-18 11:07:11,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11109 to 8996. [2022-01-18 11:07:11,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700833796553641) internal successors, (24294), 8995 states have internal predecessors, (24294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:11,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-01-18 11:07:11,544 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-01-18 11:07:11,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:11,544 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-01-18 11:07:11,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:11,544 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-01-18 11:07:11,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:11,554 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:11,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:11,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-01-18 11:07:11,554 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:11,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:11,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1098741814, now seen corresponding path program 218 times [2022-01-18 11:07:11,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:11,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297310655] [2022-01-18 11:07:11,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:11,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:11,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:11,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:11,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:11,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297310655] [2022-01-18 11:07:11,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297310655] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:11,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:11,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:11,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94026949] [2022-01-18 11:07:11,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:11,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:11,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:11,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:11,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:11,677 INFO L87 Difference]: Start difference. First operand 8996 states and 24294 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:12,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:12,123 INFO L93 Difference]: Finished difference Result 11560 states and 31152 transitions. [2022-01-18 11:07:12,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:12,123 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:12,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:12,138 INFO L225 Difference]: With dead ends: 11560 [2022-01-18 11:07:12,138 INFO L226 Difference]: Without dead ends: 11074 [2022-01-18 11:07:12,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:07:12,138 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 284 mSDsluCounter, 3322 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 3582 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:12,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 3582 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:12,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11074 states. [2022-01-18 11:07:12,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11074 to 8992. [2022-01-18 11:07:12,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:12,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-01-18 11:07:12,256 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-01-18 11:07:12,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:12,256 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-01-18 11:07:12,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:12,256 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-01-18 11:07:12,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:12,265 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:12,266 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:12,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-01-18 11:07:12,266 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:12,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:12,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1799429370, now seen corresponding path program 219 times [2022-01-18 11:07:12,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:12,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096172369] [2022-01-18 11:07:12,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:12,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:12,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:12,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:12,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096172369] [2022-01-18 11:07:12,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096172369] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:12,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:12,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:12,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177497558] [2022-01-18 11:07:12,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:12,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:12,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:12,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:12,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:12,379 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:12,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:12,949 INFO L93 Difference]: Finished difference Result 11596 states and 31247 transitions. [2022-01-18 11:07:12,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:07:12,949 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:12,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:12,964 INFO L225 Difference]: With dead ends: 11596 [2022-01-18 11:07:12,964 INFO L226 Difference]: Without dead ends: 11070 [2022-01-18 11:07:12,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=471, Invalid=1599, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:07:12,964 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 343 mSDsluCounter, 3129 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 3401 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:12,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 3401 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:12,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11070 states. [2022-01-18 11:07:13,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11070 to 8988. [2022-01-18 11:07:13,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:13,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-01-18 11:07:13,081 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-01-18 11:07:13,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:13,081 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-01-18 11:07:13,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:13,081 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-01-18 11:07:13,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:13,091 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:13,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:13,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-01-18 11:07:13,091 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:13,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:13,091 INFO L85 PathProgramCache]: Analyzing trace with hash -344647094, now seen corresponding path program 220 times [2022-01-18 11:07:13,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:13,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83394232] [2022-01-18 11:07:13,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:13,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:13,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:13,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:13,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83394232] [2022-01-18 11:07:13,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83394232] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:13,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:13,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:13,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16793813] [2022-01-18 11:07:13,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:13,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:13,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:13,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:13,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:13,205 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:13,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:13,890 INFO L93 Difference]: Finished difference Result 11824 states and 31846 transitions. [2022-01-18 11:07:13,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:07:13,890 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:13,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:13,905 INFO L225 Difference]: With dead ends: 11824 [2022-01-18 11:07:13,905 INFO L226 Difference]: Without dead ends: 11258 [2022-01-18 11:07:13,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=642, Invalid=2114, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:07:13,906 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 438 mSDsluCounter, 2947 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 3226 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:13,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 3226 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:13,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11258 states. [2022-01-18 11:07:14,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11258 to 8984. [2022-01-18 11:07:14,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:14,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-01-18 11:07:14,027 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-01-18 11:07:14,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:14,027 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-01-18 11:07:14,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:14,027 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-01-18 11:07:14,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:14,037 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:14,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:14,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-01-18 11:07:14,037 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:14,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:14,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1447765390, now seen corresponding path program 221 times [2022-01-18 11:07:14,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:14,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196142290] [2022-01-18 11:07:14,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:14,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:14,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:14,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:14,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196142290] [2022-01-18 11:07:14,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196142290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:14,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:14,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:14,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609608201] [2022-01-18 11:07:14,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:14,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:14,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:14,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:14,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:14,147 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:14,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:14,604 INFO L93 Difference]: Finished difference Result 11570 states and 31171 transitions. [2022-01-18 11:07:14,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:07:14,605 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:14,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:14,620 INFO L225 Difference]: With dead ends: 11570 [2022-01-18 11:07:14,620 INFO L226 Difference]: Without dead ends: 11085 [2022-01-18 11:07:14,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:07:14,621 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 307 mSDsluCounter, 3115 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 3368 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:14,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 3368 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:14,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11085 states. [2022-01-18 11:07:14,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11085 to 8996. [2022-01-18 11:07:14,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:14,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-01-18 11:07:14,738 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-01-18 11:07:14,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:14,738 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-01-18 11:07:14,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:14,739 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-01-18 11:07:14,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:14,748 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:14,748 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:14,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-01-18 11:07:14,748 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:14,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:14,749 INFO L85 PathProgramCache]: Analyzing trace with hash 2129386044, now seen corresponding path program 222 times [2022-01-18 11:07:14,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:14,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180575164] [2022-01-18 11:07:14,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:14,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:14,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:14,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:14,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180575164] [2022-01-18 11:07:14,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180575164] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:14,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:14,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:14,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806341582] [2022-01-18 11:07:14,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:14,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:14,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:14,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:14,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:14,859 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:15,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:15,321 INFO L93 Difference]: Finished difference Result 11528 states and 31060 transitions. [2022-01-18 11:07:15,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:15,322 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:15,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:15,336 INFO L225 Difference]: With dead ends: 11528 [2022-01-18 11:07:15,337 INFO L226 Difference]: Without dead ends: 11042 [2022-01-18 11:07:15,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=336, Invalid=1146, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:07:15,337 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 283 mSDsluCounter, 3323 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 3584 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:15,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 3584 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:15,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-01-18 11:07:15,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8992. [2022-01-18 11:07:15,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:15,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-01-18 11:07:15,456 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-01-18 11:07:15,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:15,456 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-01-18 11:07:15,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:15,456 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-01-18 11:07:15,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:15,465 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:15,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:15,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-01-18 11:07:15,466 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:15,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:15,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1464893696, now seen corresponding path program 223 times [2022-01-18 11:07:15,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:15,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968963358] [2022-01-18 11:07:15,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:15,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:15,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:15,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:15,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968963358] [2022-01-18 11:07:15,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968963358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:15,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:15,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:15,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124976315] [2022-01-18 11:07:15,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:15,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:15,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:15,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:15,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:15,587 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:16,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:16,140 INFO L93 Difference]: Finished difference Result 11696 states and 31502 transitions. [2022-01-18 11:07:16,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:07:16,140 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:16,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:16,155 INFO L225 Difference]: With dead ends: 11696 [2022-01-18 11:07:16,155 INFO L226 Difference]: Without dead ends: 11170 [2022-01-18 11:07:16,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=458, Invalid=1522, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:07:16,156 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 376 mSDsluCounter, 2898 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 3170 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:16,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 3170 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:16,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11170 states. [2022-01-18 11:07:16,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11170 to 8988. [2022-01-18 11:07:16,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:16,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-01-18 11:07:16,274 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-01-18 11:07:16,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:16,274 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-01-18 11:07:16,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:16,275 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-01-18 11:07:16,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:16,284 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:16,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:16,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-01-18 11:07:16,284 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:16,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:16,284 INFO L85 PathProgramCache]: Analyzing trace with hash -387205668, now seen corresponding path program 224 times [2022-01-18 11:07:16,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:16,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248277822] [2022-01-18 11:07:16,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:16,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:16,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:16,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:16,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248277822] [2022-01-18 11:07:16,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248277822] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:16,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:16,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:16,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898381864] [2022-01-18 11:07:16,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:16,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:16,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:16,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:16,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:16,402 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:17,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:17,012 INFO L93 Difference]: Finished difference Result 11594 states and 31208 transitions. [2022-01-18 11:07:17,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:07:17,012 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:17,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:17,027 INFO L225 Difference]: With dead ends: 11594 [2022-01-18 11:07:17,027 INFO L226 Difference]: Without dead ends: 11066 [2022-01-18 11:07:17,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=503, Invalid=1389, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:07:17,028 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 360 mSDsluCounter, 2780 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:17,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 3044 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:17,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11066 states. [2022-01-18 11:07:17,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11066 to 8992. [2022-01-18 11:07:17,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:17,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-01-18 11:07:17,150 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-01-18 11:07:17,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:17,150 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-01-18 11:07:17,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:17,150 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-01-18 11:07:17,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:17,160 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:17,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:17,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-01-18 11:07:17,160 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:17,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:17,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1399729286, now seen corresponding path program 225 times [2022-01-18 11:07:17,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:17,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092475771] [2022-01-18 11:07:17,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:17,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:17,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:17,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:17,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092475771] [2022-01-18 11:07:17,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092475771] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:17,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:17,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:17,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052048010] [2022-01-18 11:07:17,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:17,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:17,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:17,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:17,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:17,271 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:17,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:17,757 INFO L93 Difference]: Finished difference Result 11510 states and 30998 transitions. [2022-01-18 11:07:17,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:17,757 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:17,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:17,773 INFO L225 Difference]: With dead ends: 11510 [2022-01-18 11:07:17,773 INFO L226 Difference]: Without dead ends: 11025 [2022-01-18 11:07:17,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=381, Invalid=1179, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 11:07:17,774 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 300 mSDsluCounter, 3132 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 3388 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:17,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 3388 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:17,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11025 states. [2022-01-18 11:07:17,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11025 to 8996. [2022-01-18 11:07:17,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.6994997220678156) internal successors, (24282), 8995 states have internal predecessors, (24282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:17,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24282 transitions. [2022-01-18 11:07:17,899 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24282 transitions. Word has length 109 [2022-01-18 11:07:17,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:17,900 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24282 transitions. [2022-01-18 11:07:17,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:17,900 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24282 transitions. [2022-01-18 11:07:17,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:17,909 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:17,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:17,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-01-18 11:07:17,910 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:17,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:17,910 INFO L85 PathProgramCache]: Analyzing trace with hash 2081349940, now seen corresponding path program 226 times [2022-01-18 11:07:17,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:17,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734212112] [2022-01-18 11:07:17,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:17,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:18,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:18,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:18,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734212112] [2022-01-18 11:07:18,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734212112] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:18,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:18,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:18,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403290143] [2022-01-18 11:07:18,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:18,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:18,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:18,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:18,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:18,018 INFO L87 Difference]: Start difference. First operand 8996 states and 24282 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:18,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:18,441 INFO L93 Difference]: Finished difference Result 11460 states and 30865 transitions. [2022-01-18 11:07:18,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:07:18,441 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:18,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:18,458 INFO L225 Difference]: With dead ends: 11460 [2022-01-18 11:07:18,458 INFO L226 Difference]: Without dead ends: 10962 [2022-01-18 11:07:18,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:07:18,458 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 280 mSDsluCounter, 3130 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3395 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:18,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 3395 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:18,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10962 states. [2022-01-18 11:07:18,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10962 to 8980. [2022-01-18 11:07:18,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:18,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-01-18 11:07:18,577 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-01-18 11:07:18,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:18,577 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-01-18 11:07:18,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:18,578 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-01-18 11:07:18,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:18,587 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:18,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:18,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-01-18 11:07:18,587 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:18,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:18,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1895765318, now seen corresponding path program 227 times [2022-01-18 11:07:18,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:18,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091991212] [2022-01-18 11:07:18,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:18,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:18,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:18,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:18,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091991212] [2022-01-18 11:07:18,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091991212] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:18,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:18,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:18,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912041979] [2022-01-18 11:07:18,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:18,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:18,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:18,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:18,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:18,700 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:19,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:19,129 INFO L93 Difference]: Finished difference Result 11450 states and 30841 transitions. [2022-01-18 11:07:19,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:07:19,129 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:19,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:19,144 INFO L225 Difference]: With dead ends: 11450 [2022-01-18 11:07:19,144 INFO L226 Difference]: Without dead ends: 10965 [2022-01-18 11:07:19,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:07:19,145 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 284 mSDsluCounter, 3097 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 3346 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:19,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 3346 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:19,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10965 states. [2022-01-18 11:07:19,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10965 to 8996. [2022-01-18 11:07:19,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:19,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-01-18 11:07:19,268 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-01-18 11:07:19,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:19,269 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-01-18 11:07:19,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:19,269 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-01-18 11:07:19,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:19,279 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:19,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:19,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-01-18 11:07:19,279 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:19,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:19,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1717581324, now seen corresponding path program 228 times [2022-01-18 11:07:19,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:19,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706514247] [2022-01-18 11:07:19,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:19,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:19,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:19,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:19,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706514247] [2022-01-18 11:07:19,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706514247] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:19,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:19,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:19,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56733655] [2022-01-18 11:07:19,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:19,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:19,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:19,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:19,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:19,393 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:19,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:19,848 INFO L93 Difference]: Finished difference Result 11424 states and 30774 transitions. [2022-01-18 11:07:19,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:19,848 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:19,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:19,864 INFO L225 Difference]: With dead ends: 11424 [2022-01-18 11:07:19,864 INFO L226 Difference]: Without dead ends: 10938 [2022-01-18 11:07:19,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1156, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:07:19,865 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 297 mSDsluCounter, 3086 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 3341 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:19,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 3341 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:19,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10938 states. [2022-01-18 11:07:19,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10938 to 8992. [2022-01-18 11:07:19,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:19,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-01-18 11:07:19,995 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-01-18 11:07:19,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:19,995 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-01-18 11:07:19,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:19,995 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-01-18 11:07:20,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:20,007 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:20,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:20,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-01-18 11:07:20,007 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:20,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:20,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1016893768, now seen corresponding path program 229 times [2022-01-18 11:07:20,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:20,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813088116] [2022-01-18 11:07:20,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:20,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:20,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:20,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:20,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813088116] [2022-01-18 11:07:20,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813088116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:20,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:20,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:20,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867310990] [2022-01-18 11:07:20,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:20,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:20,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:20,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:20,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:20,120 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:20,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:20,663 INFO L93 Difference]: Finished difference Result 11460 states and 30869 transitions. [2022-01-18 11:07:20,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:07:20,663 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:20,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:20,678 INFO L225 Difference]: With dead ends: 11460 [2022-01-18 11:07:20,679 INFO L226 Difference]: Without dead ends: 10934 [2022-01-18 11:07:20,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1698, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:07:20,679 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 359 mSDsluCounter, 3164 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 3426 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:20,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 3426 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:20,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10934 states. [2022-01-18 11:07:20,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10934 to 8988. [2022-01-18 11:07:20,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:20,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-01-18 11:07:20,797 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-01-18 11:07:20,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:20,798 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-01-18 11:07:20,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:20,798 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-01-18 11:07:20,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:20,808 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:20,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:20,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-01-18 11:07:20,808 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:20,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:20,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1133997064, now seen corresponding path program 230 times [2022-01-18 11:07:20,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:20,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327413922] [2022-01-18 11:07:20,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:20,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:20,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:20,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:20,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327413922] [2022-01-18 11:07:20,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327413922] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:20,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:20,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:20,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786580849] [2022-01-18 11:07:20,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:20,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:20,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:20,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:20,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:20,926 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:21,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:21,644 INFO L93 Difference]: Finished difference Result 11496 states and 30964 transitions. [2022-01-18 11:07:21,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:07:21,644 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:21,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:21,659 INFO L225 Difference]: With dead ends: 11496 [2022-01-18 11:07:21,659 INFO L226 Difference]: Without dead ends: 10930 [2022-01-18 11:07:21,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 754 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=649, Invalid=2213, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:07:21,660 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 404 mSDsluCounter, 3453 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 3720 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:21,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [404 Valid, 3720 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:21,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10930 states. [2022-01-18 11:07:21,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10930 to 8984. [2022-01-18 11:07:21,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.70032283201603) internal successors, (24257), 8983 states have internal predecessors, (24257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:21,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24257 transitions. [2022-01-18 11:07:21,778 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24257 transitions. Word has length 109 [2022-01-18 11:07:21,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:21,779 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24257 transitions. [2022-01-18 11:07:21,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:21,779 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24257 transitions. [2022-01-18 11:07:21,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:21,788 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:21,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:21,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-01-18 11:07:21,788 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:21,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:21,789 INFO L85 PathProgramCache]: Analyzing trace with hash 2098188412, now seen corresponding path program 231 times [2022-01-18 11:07:21,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:21,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86097305] [2022-01-18 11:07:21,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:21,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:21,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:21,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:21,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86097305] [2022-01-18 11:07:21,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86097305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:21,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:21,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:21,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85021293] [2022-01-18 11:07:21,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:21,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:21,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:21,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:21,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:21,913 INFO L87 Difference]: Start difference. First operand 8984 states and 24257 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:22,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:22,805 INFO L93 Difference]: Finished difference Result 11424 states and 30762 transitions. [2022-01-18 11:07:22,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 11:07:22,805 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:22,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:22,820 INFO L225 Difference]: With dead ends: 11424 [2022-01-18 11:07:22,821 INFO L226 Difference]: Without dead ends: 10810 [2022-01-18 11:07:22,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=844, Invalid=2696, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 11:07:22,821 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 434 mSDsluCounter, 3473 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 3744 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:22,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 3744 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:22,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10810 states. [2022-01-18 11:07:22,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10810 to 8972. [2022-01-18 11:07:22,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8972 states, 8971 states have (on average 2.701148144019619) internal successors, (24232), 8971 states have internal predecessors, (24232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:22,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 24232 transitions. [2022-01-18 11:07:22,945 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 24232 transitions. Word has length 109 [2022-01-18 11:07:22,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:22,945 INFO L470 AbstractCegarLoop]: Abstraction has 8972 states and 24232 transitions. [2022-01-18 11:07:22,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:22,946 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 24232 transitions. [2022-01-18 11:07:22,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:22,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:22,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:22,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-01-18 11:07:22,956 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:22,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:22,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1433525632, now seen corresponding path program 232 times [2022-01-18 11:07:22,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:22,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571729244] [2022-01-18 11:07:22,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:22,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:23,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:23,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:23,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571729244] [2022-01-18 11:07:23,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571729244] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:23,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:23,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:23,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793981314] [2022-01-18 11:07:23,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:23,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:23,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:23,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:23,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:23,064 INFO L87 Difference]: Start difference. First operand 8972 states and 24232 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:23,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:23,523 INFO L93 Difference]: Finished difference Result 11378 states and 30647 transitions. [2022-01-18 11:07:23,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:07:23,523 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:23,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:23,538 INFO L225 Difference]: With dead ends: 11378 [2022-01-18 11:07:23,538 INFO L226 Difference]: Without dead ends: 10893 [2022-01-18 11:07:23,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:07:23,538 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 369 mSDsluCounter, 3063 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 3344 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:23,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 3344 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:23,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10893 states. [2022-01-18 11:07:23,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10893 to 9000. [2022-01-18 11:07:23,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.7008556506278474) internal successors, (24305), 8999 states have internal predecessors, (24305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:23,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24305 transitions. [2022-01-18 11:07:23,654 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24305 transitions. Word has length 109 [2022-01-18 11:07:23,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:23,655 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24305 transitions. [2022-01-18 11:07:23,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:23,655 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24305 transitions. [2022-01-18 11:07:23,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:23,664 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:23,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:23,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-01-18 11:07:23,664 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:23,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:23,665 INFO L85 PathProgramCache]: Analyzing trace with hash 2115146286, now seen corresponding path program 233 times [2022-01-18 11:07:23,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:23,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460762254] [2022-01-18 11:07:23,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:23,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:23,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:23,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:23,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460762254] [2022-01-18 11:07:23,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460762254] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:23,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:23,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:23,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525555990] [2022-01-18 11:07:23,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:23,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:23,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:23,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:23,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:23,769 INFO L87 Difference]: Start difference. First operand 9000 states and 24305 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:24,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:24,212 INFO L93 Difference]: Finished difference Result 11344 states and 30558 transitions. [2022-01-18 11:07:24,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:24,212 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:24,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:24,227 INFO L225 Difference]: With dead ends: 11344 [2022-01-18 11:07:24,227 INFO L226 Difference]: Without dead ends: 10858 [2022-01-18 11:07:24,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=1155, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:07:24,227 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 357 mSDsluCounter, 3557 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 3844 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:24,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 3844 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:24,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10858 states. [2022-01-18 11:07:24,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10858 to 8996. [2022-01-18 11:07:24,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700833796553641) internal successors, (24294), 8995 states have internal predecessors, (24294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:24,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-01-18 11:07:24,344 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-01-18 11:07:24,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:24,344 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-01-18 11:07:24,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:24,344 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-01-18 11:07:24,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:24,354 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:24,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:24,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-01-18 11:07:24,354 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:24,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:24,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1479133454, now seen corresponding path program 234 times [2022-01-18 11:07:24,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:24,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085365855] [2022-01-18 11:07:24,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:24,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:24,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:24,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:24,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085365855] [2022-01-18 11:07:24,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085365855] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:24,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:24,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:24,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166251498] [2022-01-18 11:07:24,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:24,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:24,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:24,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:24,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:24,471 INFO L87 Difference]: Start difference. First operand 8996 states and 24294 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:25,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:25,065 INFO L93 Difference]: Finished difference Result 11380 states and 30653 transitions. [2022-01-18 11:07:25,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:07:25,066 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:25,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:25,080 INFO L225 Difference]: With dead ends: 11380 [2022-01-18 11:07:25,081 INFO L226 Difference]: Without dead ends: 10854 [2022-01-18 11:07:25,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=462, Invalid=1608, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:07:25,081 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 418 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 3691 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:25,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 3691 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:25,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10854 states. [2022-01-18 11:07:25,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10854 to 8992. [2022-01-18 11:07:25,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:25,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-01-18 11:07:25,216 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-01-18 11:07:25,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:25,216 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-01-18 11:07:25,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:25,216 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-01-18 11:07:25,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:25,226 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:25,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:25,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-01-18 11:07:25,226 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:25,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:25,227 INFO L85 PathProgramCache]: Analyzing trace with hash 671757378, now seen corresponding path program 235 times [2022-01-18 11:07:25,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:25,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097593730] [2022-01-18 11:07:25,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:25,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:25,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:25,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:25,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097593730] [2022-01-18 11:07:25,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097593730] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:25,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:25,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:25,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211990623] [2022-01-18 11:07:25,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:25,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:25,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:25,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:25,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:25,336 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:26,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:26,011 INFO L93 Difference]: Finished difference Result 11608 states and 31252 transitions. [2022-01-18 11:07:26,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:07:26,011 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:26,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:26,026 INFO L225 Difference]: With dead ends: 11608 [2022-01-18 11:07:26,027 INFO L226 Difference]: Without dead ends: 11042 [2022-01-18 11:07:26,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=628, Invalid=2128, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:07:26,027 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 520 mSDsluCounter, 2854 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 3162 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:26,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [520 Valid, 3162 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:26,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-01-18 11:07:26,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8988. [2022-01-18 11:07:26,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:26,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-01-18 11:07:26,145 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-01-18 11:07:26,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:26,145 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-01-18 11:07:26,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:26,146 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-01-18 11:07:26,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:26,155 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:26,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:26,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-01-18 11:07:26,155 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:26,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:26,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1830797434, now seen corresponding path program 236 times [2022-01-18 11:07:26,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:26,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674188921] [2022-01-18 11:07:26,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:26,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:26,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:26,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:26,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674188921] [2022-01-18 11:07:26,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674188921] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:26,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:26,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:26,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577790354] [2022-01-18 11:07:26,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:26,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:26,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:26,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:26,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:26,258 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:26,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:26,698 INFO L93 Difference]: Finished difference Result 11354 states and 30577 transitions. [2022-01-18 11:07:26,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:07:26,698 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:26,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:26,712 INFO L225 Difference]: With dead ends: 11354 [2022-01-18 11:07:26,713 INFO L226 Difference]: Without dead ends: 10869 [2022-01-18 11:07:26,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:07:26,713 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 370 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 3124 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:26,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [370 Valid, 3124 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:26,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10869 states. [2022-01-18 11:07:26,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10869 to 9000. [2022-01-18 11:07:26,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.7004111567951994) internal successors, (24301), 8999 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:26,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24301 transitions. [2022-01-18 11:07:26,829 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24301 transitions. Word has length 109 [2022-01-18 11:07:26,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:26,829 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24301 transitions. [2022-01-18 11:07:26,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:26,829 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24301 transitions. [2022-01-18 11:07:26,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:26,839 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:26,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:26,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-01-18 11:07:26,839 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:26,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:26,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1149176780, now seen corresponding path program 237 times [2022-01-18 11:07:26,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:26,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17564000] [2022-01-18 11:07:26,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:26,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:26,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:26,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:26,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17564000] [2022-01-18 11:07:26,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17564000] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:26,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:26,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:26,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934295730] [2022-01-18 11:07:26,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:26,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:26,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:26,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:26,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:26,943 INFO L87 Difference]: Start difference. First operand 9000 states and 24301 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:27,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:27,382 INFO L93 Difference]: Finished difference Result 11312 states and 30466 transitions. [2022-01-18 11:07:27,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:27,382 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:27,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:27,401 INFO L225 Difference]: With dead ends: 11312 [2022-01-18 11:07:27,402 INFO L226 Difference]: Without dead ends: 10826 [2022-01-18 11:07:27,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:07:27,402 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 356 mSDsluCounter, 3315 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 3605 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:27,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 3605 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:27,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10826 states. [2022-01-18 11:07:27,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10826 to 8996. [2022-01-18 11:07:27,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:27,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-01-18 11:07:27,565 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-01-18 11:07:27,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:27,566 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-01-18 11:07:27,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:27,566 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-01-18 11:07:27,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:27,579 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:27,579 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:27,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-01-18 11:07:27,579 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:27,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:27,580 INFO L85 PathProgramCache]: Analyzing trace with hash -448489224, now seen corresponding path program 238 times [2022-01-18 11:07:27,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:27,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520420330] [2022-01-18 11:07:27,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:27,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:27,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:27,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:27,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520420330] [2022-01-18 11:07:27,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520420330] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:27,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:27,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:27,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454756438] [2022-01-18 11:07:27,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:27,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:27,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:27,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:27,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:27,780 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:28,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:28,673 INFO L93 Difference]: Finished difference Result 11480 states and 30908 transitions. [2022-01-18 11:07:28,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:07:28,673 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:28,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:28,696 INFO L225 Difference]: With dead ends: 11480 [2022-01-18 11:07:28,696 INFO L226 Difference]: Without dead ends: 10954 [2022-01-18 11:07:28,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=450, Invalid=1530, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:07:28,697 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 452 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:28,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 2561 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 11:07:28,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10954 states. [2022-01-18 11:07:28,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10954 to 8992. [2022-01-18 11:07:28,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:28,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-01-18 11:07:28,879 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-01-18 11:07:28,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:28,880 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-01-18 11:07:28,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:28,880 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-01-18 11:07:28,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:28,894 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:28,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:28,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-01-18 11:07:28,894 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:28,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:28,895 INFO L85 PathProgramCache]: Analyzing trace with hash 629198804, now seen corresponding path program 239 times [2022-01-18 11:07:28,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:28,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763880351] [2022-01-18 11:07:28,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:28,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:29,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:29,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:29,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763880351] [2022-01-18 11:07:29,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763880351] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:29,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:29,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:29,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297847884] [2022-01-18 11:07:29,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:29,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:29,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:29,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:29,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:29,031 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:30,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:30,048 INFO L93 Difference]: Finished difference Result 11378 states and 30614 transitions. [2022-01-18 11:07:30,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:07:30,049 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:30,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:30,063 INFO L225 Difference]: With dead ends: 11378 [2022-01-18 11:07:30,063 INFO L226 Difference]: Without dead ends: 10850 [2022-01-18 11:07:30,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=500, Invalid=1392, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:07:30,064 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 418 mSDsluCounter, 2857 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 3145 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:30,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 3145 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:07:30,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10850 states. [2022-01-18 11:07:30,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10850 to 8996. [2022-01-18 11:07:30,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.699944413563091) internal successors, (24286), 8995 states have internal predecessors, (24286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:30,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24286 transitions. [2022-01-18 11:07:30,215 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24286 transitions. Word has length 109 [2022-01-18 11:07:30,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:30,215 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24286 transitions. [2022-01-18 11:07:30,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:30,215 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24286 transitions. [2022-01-18 11:07:30,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:30,228 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:30,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:30,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-01-18 11:07:30,229 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:30,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:30,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1878833538, now seen corresponding path program 240 times [2022-01-18 11:07:30,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:30,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810561993] [2022-01-18 11:07:30,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:30,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:30,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:30,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:30,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810561993] [2022-01-18 11:07:30,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810561993] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:30,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:30,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:30,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318933106] [2022-01-18 11:07:30,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:30,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:30,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:30,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:30,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:30,422 INFO L87 Difference]: Start difference. First operand 8996 states and 24286 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:31,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:31,076 INFO L93 Difference]: Finished difference Result 11294 states and 30404 transitions. [2022-01-18 11:07:31,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:31,076 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:31,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:31,109 INFO L225 Difference]: With dead ends: 11294 [2022-01-18 11:07:31,109 INFO L226 Difference]: Without dead ends: 10809 [2022-01-18 11:07:31,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=386, Invalid=1096, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:07:31,110 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 417 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 2473 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:31,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 2473 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:07:31,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10809 states. [2022-01-18 11:07:31,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10809 to 9000. [2022-01-18 11:07:31,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.6995221691299034) internal successors, (24293), 8999 states have internal predecessors, (24293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:31,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24293 transitions. [2022-01-18 11:07:31,260 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24293 transitions. Word has length 109 [2022-01-18 11:07:31,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:31,260 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24293 transitions. [2022-01-18 11:07:31,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:31,260 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24293 transitions. [2022-01-18 11:07:31,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:31,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:31,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:31,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-01-18 11:07:31,270 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:31,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:31,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1197212884, now seen corresponding path program 241 times [2022-01-18 11:07:31,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:31,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7293260] [2022-01-18 11:07:31,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:31,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:31,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:31,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:31,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7293260] [2022-01-18 11:07:31,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7293260] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:31,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:31,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:31,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551289662] [2022-01-18 11:07:31,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:31,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:31,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:31,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:31,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:31,390 INFO L87 Difference]: Start difference. First operand 9000 states and 24293 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:31,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:31,886 INFO L93 Difference]: Finished difference Result 11244 states and 30271 transitions. [2022-01-18 11:07:31,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:07:31,886 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:31,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:31,903 INFO L225 Difference]: With dead ends: 11244 [2022-01-18 11:07:31,903 INFO L226 Difference]: Without dead ends: 10746 [2022-01-18 11:07:31,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=1091, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:07:31,903 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 354 mSDsluCounter, 3548 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 3832 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:31,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 3832 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:07:31,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10746 states. [2022-01-18 11:07:31,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10746 to 8984. [2022-01-18 11:07:32,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:32,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-01-18 11:07:32,022 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-01-18 11:07:32,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:32,022 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-01-18 11:07:32,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:32,022 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-01-18 11:07:32,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:32,036 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:32,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:32,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-01-18 11:07:32,036 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:32,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:32,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1382797506, now seen corresponding path program 242 times [2022-01-18 11:07:32,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:32,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566693044] [2022-01-18 11:07:32,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:32,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:32,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:32,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:32,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566693044] [2022-01-18 11:07:32,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566693044] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:32,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:32,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:32,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334259229] [2022-01-18 11:07:32,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:32,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:32,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:32,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:32,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:32,164 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:32,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:32,749 INFO L93 Difference]: Finished difference Result 11306 states and 30445 transitions. [2022-01-18 11:07:32,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:07:32,749 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:32,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:32,766 INFO L225 Difference]: With dead ends: 11306 [2022-01-18 11:07:32,766 INFO L226 Difference]: Without dead ends: 10821 [2022-01-18 11:07:32,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=335, Invalid=997, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:07:32,767 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 403 mSDsluCounter, 3432 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 3701 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:32,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 3701 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:07:32,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10821 states. [2022-01-18 11:07:32,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10821 to 9000. [2022-01-18 11:07:32,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.7004111567951994) internal successors, (24301), 8999 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:32,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24301 transitions. [2022-01-18 11:07:32,887 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24301 transitions. Word has length 109 [2022-01-18 11:07:32,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:32,887 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24301 transitions. [2022-01-18 11:07:32,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:32,887 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24301 transitions. [2022-01-18 11:07:32,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:32,897 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:32,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:32,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-01-18 11:07:32,897 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:32,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:32,898 INFO L85 PathProgramCache]: Analyzing trace with hash -701176852, now seen corresponding path program 243 times [2022-01-18 11:07:32,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:32,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939822238] [2022-01-18 11:07:32,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:32,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:33,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:33,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:33,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939822238] [2022-01-18 11:07:33,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939822238] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:33,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:33,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:33,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886067109] [2022-01-18 11:07:33,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:33,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:33,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:33,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:33,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:33,006 INFO L87 Difference]: Start difference. First operand 9000 states and 24301 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:33,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:33,482 INFO L93 Difference]: Finished difference Result 11280 states and 30378 transitions. [2022-01-18 11:07:33,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:33,482 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:33,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:33,497 INFO L225 Difference]: With dead ends: 11280 [2022-01-18 11:07:33,497 INFO L226 Difference]: Without dead ends: 10794 [2022-01-18 11:07:33,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=321, Invalid=1161, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:07:33,497 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 384 mSDsluCounter, 3275 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:33,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 3555 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:33,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10794 states. [2022-01-18 11:07:33,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10794 to 8996. [2022-01-18 11:07:33,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:33,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-01-18 11:07:33,621 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-01-18 11:07:33,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:33,621 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-01-18 11:07:33,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:33,622 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-01-18 11:07:33,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:33,632 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:33,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:33,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-01-18 11:07:33,632 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:33,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:33,632 INFO L85 PathProgramCache]: Analyzing trace with hash -489296, now seen corresponding path program 244 times [2022-01-18 11:07:33,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:33,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072557219] [2022-01-18 11:07:33,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:33,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:33,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:33,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:33,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072557219] [2022-01-18 11:07:33,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072557219] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:33,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:33,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:33,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805536714] [2022-01-18 11:07:33,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:33,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:33,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:33,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:33,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:33,756 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:34,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:34,455 INFO L93 Difference]: Finished difference Result 11316 states and 30473 transitions. [2022-01-18 11:07:34,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:07:34,457 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:34,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:34,478 INFO L225 Difference]: With dead ends: 11316 [2022-01-18 11:07:34,479 INFO L226 Difference]: Without dead ends: 10790 [2022-01-18 11:07:34,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=451, Invalid=1619, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:07:34,479 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 431 mSDsluCounter, 3612 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:34,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 3898 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:07:34,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10790 states. [2022-01-18 11:07:34,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10790 to 8992. [2022-01-18 11:07:34,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:34,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-01-18 11:07:34,658 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-01-18 11:07:34,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:34,658 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-01-18 11:07:34,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:34,659 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-01-18 11:07:34,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:34,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:34,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:34,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-01-18 11:07:34,672 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:34,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:34,673 INFO L85 PathProgramCache]: Analyzing trace with hash -2144565760, now seen corresponding path program 245 times [2022-01-18 11:07:34,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:34,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971245262] [2022-01-18 11:07:34,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:34,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:34,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:34,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:34,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971245262] [2022-01-18 11:07:34,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971245262] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:34,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:34,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:34,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446281189] [2022-01-18 11:07:34,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:34,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:34,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:34,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:34,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:34,850 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:35,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:35,597 INFO L93 Difference]: Finished difference Result 11352 states and 30568 transitions. [2022-01-18 11:07:35,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:07:35,597 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:35,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:35,613 INFO L225 Difference]: With dead ends: 11352 [2022-01-18 11:07:35,613 INFO L226 Difference]: Without dead ends: 10786 [2022-01-18 11:07:35,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=634, Invalid=2228, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:07:35,614 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 493 mSDsluCounter, 3106 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 3406 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:35,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [493 Valid, 3406 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:07:35,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10786 states. [2022-01-18 11:07:35,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10786 to 8988. [2022-01-18 11:07:35,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:35,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-01-18 11:07:35,744 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-01-18 11:07:35,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:35,745 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-01-18 11:07:35,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:35,745 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-01-18 11:07:35,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:35,755 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:35,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:35,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-01-18 11:07:35,755 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:35,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:35,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1180374412, now seen corresponding path program 246 times [2022-01-18 11:07:35,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:35,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705826156] [2022-01-18 11:07:35,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:35,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:35,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:35,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:35,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705826156] [2022-01-18 11:07:35,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705826156] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:35,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:35,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:35,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565736185] [2022-01-18 11:07:35,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:35,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:35,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:35,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:35,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:35,865 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:36,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:36,572 INFO L93 Difference]: Finished difference Result 11352 states and 30564 transitions. [2022-01-18 11:07:36,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:07:36,572 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:36,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:36,587 INFO L225 Difference]: With dead ends: 11352 [2022-01-18 11:07:36,587 INFO L226 Difference]: Without dead ends: 10742 [2022-01-18 11:07:36,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1072 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=849, Invalid=2933, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:07:36,588 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 530 mSDsluCounter, 3713 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 4012 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:36,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [530 Valid, 4012 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:36,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10742 states. [2022-01-18 11:07:36,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10742 to 8980. [2022-01-18 11:07:36,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:36,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-01-18 11:07:36,705 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-01-18 11:07:36,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:36,705 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-01-18 11:07:36,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:36,705 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-01-18 11:07:36,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:36,715 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:36,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:36,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-01-18 11:07:36,716 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:36,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:36,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1589513272, now seen corresponding path program 247 times [2022-01-18 11:07:36,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:36,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030514945] [2022-01-18 11:07:36,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:36,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:36,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:36,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:36,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030514945] [2022-01-18 11:07:36,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030514945] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:36,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:36,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:36,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784867665] [2022-01-18 11:07:36,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:36,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:36,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:36,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:36,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:36,819 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:37,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:37,224 INFO L93 Difference]: Finished difference Result 11166 states and 30060 transitions. [2022-01-18 11:07:37,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 11:07:37,224 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:37,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:37,239 INFO L225 Difference]: With dead ends: 11166 [2022-01-18 11:07:37,239 INFO L226 Difference]: Without dead ends: 10681 [2022-01-18 11:07:37,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=934, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:07:37,239 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 474 mSDsluCounter, 3368 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 3665 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:37,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 3665 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:37,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10681 states. [2022-01-18 11:07:37,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10681 to 9004. [2022-01-18 11:07:37,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9004 states, 9003 states have (on average 2.700433188937021) internal successors, (24312), 9003 states have internal predecessors, (24312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:37,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9004 states to 9004 states and 24312 transitions. [2022-01-18 11:07:37,360 INFO L78 Accepts]: Start accepts. Automaton has 9004 states and 24312 transitions. Word has length 109 [2022-01-18 11:07:37,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:37,360 INFO L470 AbstractCegarLoop]: Abstraction has 9004 states and 24312 transitions. [2022-01-18 11:07:37,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:37,360 INFO L276 IsEmpty]: Start isEmpty. Operand 9004 states and 24312 transitions. [2022-01-18 11:07:37,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:37,370 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:37,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:37,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-01-18 11:07:37,370 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:37,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:37,371 INFO L85 PathProgramCache]: Analyzing trace with hash -907892618, now seen corresponding path program 248 times [2022-01-18 11:07:37,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:37,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749724845] [2022-01-18 11:07:37,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:37,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:37,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:37,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:37,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749724845] [2022-01-18 11:07:37,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749724845] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:37,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:37,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:37,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326267336] [2022-01-18 11:07:37,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:37,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:37,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:37,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:37,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:37,471 INFO L87 Difference]: Start difference. First operand 9004 states and 24312 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:37,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:37,872 INFO L93 Difference]: Finished difference Result 11140 states and 29993 transitions. [2022-01-18 11:07:37,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:37,872 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:37,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:37,887 INFO L225 Difference]: With dead ends: 11140 [2022-01-18 11:07:37,888 INFO L226 Difference]: Without dead ends: 10654 [2022-01-18 11:07:37,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=319, Invalid=1163, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:07:37,888 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 534 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 3403 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:37,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 3403 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:37,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10654 states. [2022-01-18 11:07:37,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10654 to 9000. [2022-01-18 11:07:38,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.7004111567951994) internal successors, (24301), 8999 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:38,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24301 transitions. [2022-01-18 11:07:38,030 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24301 transitions. Word has length 109 [2022-01-18 11:07:38,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:38,030 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24301 transitions. [2022-01-18 11:07:38,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:38,030 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24301 transitions. [2022-01-18 11:07:38,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:38,043 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:38,043 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:38,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-01-18 11:07:38,044 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:38,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:38,044 INFO L85 PathProgramCache]: Analyzing trace with hash -207205062, now seen corresponding path program 249 times [2022-01-18 11:07:38,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:38,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407570319] [2022-01-18 11:07:38,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:38,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:38,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:38,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:38,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407570319] [2022-01-18 11:07:38,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407570319] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:38,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:38,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:38,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168771516] [2022-01-18 11:07:38,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:38,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:38,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:38,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:38,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:38,237 INFO L87 Difference]: Start difference. First operand 9000 states and 24301 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:38,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:38,757 INFO L93 Difference]: Finished difference Result 11176 states and 30088 transitions. [2022-01-18 11:07:38,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:07:38,757 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:38,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:38,771 INFO L225 Difference]: With dead ends: 11176 [2022-01-18 11:07:38,771 INFO L226 Difference]: Without dead ends: 10650 [2022-01-18 11:07:38,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=443, Invalid=1627, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:07:38,772 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 599 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 3420 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:38,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [599 Valid, 3420 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:38,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10650 states. [2022-01-18 11:07:38,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10650 to 8996. [2022-01-18 11:07:38,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:38,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-01-18 11:07:38,888 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-01-18 11:07:38,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:38,888 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-01-18 11:07:38,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:38,889 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-01-18 11:07:38,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:38,898 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:38,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:38,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-01-18 11:07:38,898 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:38,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:38,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1943685770, now seen corresponding path program 250 times [2022-01-18 11:07:38,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:38,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951479507] [2022-01-18 11:07:38,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:38,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:39,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:39,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:39,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951479507] [2022-01-18 11:07:39,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951479507] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:39,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:39,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:39,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020773430] [2022-01-18 11:07:39,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:39,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:39,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:39,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:39,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:39,006 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:39,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:39,669 INFO L93 Difference]: Finished difference Result 11212 states and 30183 transitions. [2022-01-18 11:07:39,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:07:39,670 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:39,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:39,690 INFO L225 Difference]: With dead ends: 11212 [2022-01-18 11:07:39,690 INFO L226 Difference]: Without dead ends: 10646 [2022-01-18 11:07:39,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 815 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=620, Invalid=2242, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:07:39,691 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 674 mSDsluCounter, 3205 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 3522 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:39,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [674 Valid, 3522 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:39,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10646 states. [2022-01-18 11:07:39,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10646 to 8992. [2022-01-18 11:07:39,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:39,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-01-18 11:07:39,851 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-01-18 11:07:39,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:39,852 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-01-18 11:07:39,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:39,852 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-01-18 11:07:39,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:39,862 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:39,862 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:39,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-01-18 11:07:39,862 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:39,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:39,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1387090178, now seen corresponding path program 251 times [2022-01-18 11:07:39,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:39,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895084562] [2022-01-18 11:07:39,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:39,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:40,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:40,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:40,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895084562] [2022-01-18 11:07:40,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895084562] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:40,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:40,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:40,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817295690] [2022-01-18 11:07:40,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:40,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:40,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:40,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:40,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:40,009 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:40,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:40,873 INFO L93 Difference]: Finished difference Result 11248 states and 30278 transitions. [2022-01-18 11:07:40,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 11:07:40,873 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:40,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:40,890 INFO L225 Difference]: With dead ends: 11248 [2022-01-18 11:07:40,890 INFO L226 Difference]: Without dead ends: 10642 [2022-01-18 11:07:40,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1132 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=847, Invalid=2935, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:07:40,891 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 725 mSDsluCounter, 3869 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 4189 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:40,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [725 Valid, 4189 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:40,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10642 states. [2022-01-18 11:07:40,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10642 to 8988. [2022-01-18 11:07:40,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:41,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-01-18 11:07:41,013 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-01-18 11:07:41,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:41,013 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-01-18 11:07:41,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:41,013 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-01-18 11:07:41,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:41,023 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:41,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:41,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-01-18 11:07:41,023 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:41,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:41,024 INFO L85 PathProgramCache]: Analyzing trace with hash 848592424, now seen corresponding path program 252 times [2022-01-18 11:07:41,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:41,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772906971] [2022-01-18 11:07:41,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:41,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:41,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:41,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:41,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772906971] [2022-01-18 11:07:41,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772906971] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:41,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:41,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:41,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841766654] [2022-01-18 11:07:41,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:41,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:41,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:41,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:41,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:41,128 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:41,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:41,897 INFO L93 Difference]: Finished difference Result 11861 states and 31739 transitions. [2022-01-18 11:07:41,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 11:07:41,897 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:41,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:41,912 INFO L225 Difference]: With dead ends: 11861 [2022-01-18 11:07:41,912 INFO L226 Difference]: Without dead ends: 10915 [2022-01-18 11:07:41,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1229 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=999, Invalid=3291, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:07:41,913 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 976 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 2739 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:41,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [976 Valid, 2739 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:41,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10915 states. [2022-01-18 11:07:42,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10915 to 8724. [2022-01-18 11:07:42,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8724 states, 8723 states have (on average 2.702166685773243) internal successors, (23571), 8723 states have internal predecessors, (23571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:42,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8724 states to 8724 states and 23571 transitions. [2022-01-18 11:07:42,029 INFO L78 Accepts]: Start accepts. Automaton has 8724 states and 23571 transitions. Word has length 109 [2022-01-18 11:07:42,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:42,030 INFO L470 AbstractCegarLoop]: Abstraction has 8724 states and 23571 transitions. [2022-01-18 11:07:42,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:42,030 INFO L276 IsEmpty]: Start isEmpty. Operand 8724 states and 23571 transitions. [2022-01-18 11:07:42,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:42,039 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:42,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:42,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-01-18 11:07:42,039 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:42,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:42,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2023938288, now seen corresponding path program 1 times [2022-01-18 11:07:42,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:42,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961212994] [2022-01-18 11:07:42,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:42,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:42,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:42,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:42,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961212994] [2022-01-18 11:07:42,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961212994] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:42,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:42,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 11:07:42,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153004332] [2022-01-18 11:07:42,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:42,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 11:07:42,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:42,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 11:07:42,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:07:42,053 INFO L87 Difference]: Start difference. First operand 8724 states and 23571 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:42,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:42,082 INFO L93 Difference]: Finished difference Result 7930 states and 20990 transitions. [2022-01-18 11:07:42,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 11:07:42,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:42,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:42,091 INFO L225 Difference]: With dead ends: 7930 [2022-01-18 11:07:42,091 INFO L226 Difference]: Without dead ends: 7930 [2022-01-18 11:07:42,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 11:07:42,091 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 123 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:42,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 203 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 11:07:42,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7930 states. [2022-01-18 11:07:42,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7930 to 7930. [2022-01-18 11:07:42,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7930 states, 7929 states have (on average 2.6472442931012736) internal successors, (20990), 7929 states have internal predecessors, (20990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:42,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7930 states to 7930 states and 20990 transitions. [2022-01-18 11:07:42,182 INFO L78 Accepts]: Start accepts. Automaton has 7930 states and 20990 transitions. Word has length 109 [2022-01-18 11:07:42,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:42,182 INFO L470 AbstractCegarLoop]: Abstraction has 7930 states and 20990 transitions. [2022-01-18 11:07:42,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:42,182 INFO L276 IsEmpty]: Start isEmpty. Operand 7930 states and 20990 transitions. [2022-01-18 11:07:42,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:42,190 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:42,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:42,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-01-18 11:07:42,190 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:42,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:42,190 INFO L85 PathProgramCache]: Analyzing trace with hash 118742352, now seen corresponding path program 1 times [2022-01-18 11:07:42,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:42,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789424514] [2022-01-18 11:07:42,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:42,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:42,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:42,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:42,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789424514] [2022-01-18 11:07:42,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789424514] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:42,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:42,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:42,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146323545] [2022-01-18 11:07:42,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:42,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:42,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:42,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:42,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:42,292 INFO L87 Difference]: Start difference. First operand 7930 states and 20990 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:43,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:43,204 INFO L93 Difference]: Finished difference Result 9314 states and 24487 transitions. [2022-01-18 11:07:43,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 11:07:43,204 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:43,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:43,216 INFO L225 Difference]: With dead ends: 9314 [2022-01-18 11:07:43,216 INFO L226 Difference]: Without dead ends: 8518 [2022-01-18 11:07:43,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1325 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1028, Invalid=3394, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 11:07:43,217 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 612 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 3052 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:43,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [612 Valid, 3052 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:07:43,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8518 states. [2022-01-18 11:07:43,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8518 to 7730. [2022-01-18 11:07:43,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.644585327985509) internal successors, (20440), 7729 states have internal predecessors, (20440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:43,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20440 transitions. [2022-01-18 11:07:43,334 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20440 transitions. Word has length 109 [2022-01-18 11:07:43,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:43,334 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20440 transitions. [2022-01-18 11:07:43,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:43,335 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20440 transitions. [2022-01-18 11:07:43,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:43,343 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:43,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:43,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-01-18 11:07:43,343 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:43,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:43,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1474585368, now seen corresponding path program 2 times [2022-01-18 11:07:43,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:43,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64244639] [2022-01-18 11:07:43,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:43,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:43,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:43,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:43,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64244639] [2022-01-18 11:07:43,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64244639] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:43,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:43,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:43,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752824957] [2022-01-18 11:07:43,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:43,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:43,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:43,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:43,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:43,449 INFO L87 Difference]: Start difference. First operand 7730 states and 20440 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:43,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:43,847 INFO L93 Difference]: Finished difference Result 8756 states and 23083 transitions. [2022-01-18 11:07:43,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 11:07:43,847 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:43,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:43,858 INFO L225 Difference]: With dead ends: 8756 [2022-01-18 11:07:43,858 INFO L226 Difference]: Without dead ends: 8277 [2022-01-18 11:07:43,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=867, Unknown=0, NotChecked=0, Total=1190 [2022-01-18 11:07:43,859 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 224 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2483 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:43,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2483 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:43,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8277 states. [2022-01-18 11:07:43,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8277 to 7746. [2022-01-18 11:07:43,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7746 states, 7745 states have (on average 2.644286636539703) internal successors, (20480), 7745 states have internal predecessors, (20480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:43,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7746 states to 7746 states and 20480 transitions. [2022-01-18 11:07:43,949 INFO L78 Accepts]: Start accepts. Automaton has 7746 states and 20480 transitions. Word has length 109 [2022-01-18 11:07:43,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:43,949 INFO L470 AbstractCegarLoop]: Abstraction has 7746 states and 20480 transitions. [2022-01-18 11:07:43,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:43,949 INFO L276 IsEmpty]: Start isEmpty. Operand 7746 states and 20480 transitions. [2022-01-18 11:07:43,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:43,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:43,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:43,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-01-18 11:07:43,957 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:43,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:43,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1192858810, now seen corresponding path program 3 times [2022-01-18 11:07:43,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:43,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307599237] [2022-01-18 11:07:43,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:43,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:44,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:44,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:44,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307599237] [2022-01-18 11:07:44,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307599237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:44,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:44,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:44,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963989390] [2022-01-18 11:07:44,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:44,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:44,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:44,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:44,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:44,057 INFO L87 Difference]: Start difference. First operand 7746 states and 20480 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:44,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:44,429 INFO L93 Difference]: Finished difference Result 8734 states and 23027 transitions. [2022-01-18 11:07:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:44,429 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:44,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:44,438 INFO L225 Difference]: With dead ends: 8734 [2022-01-18 11:07:44,439 INFO L226 Difference]: Without dead ends: 8254 [2022-01-18 11:07:44,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=319, Invalid=1163, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:07:44,439 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 237 mSDsluCounter, 2115 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 2338 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:44,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 2338 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:44,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8254 states. [2022-01-18 11:07:44,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8254 to 7742. [2022-01-18 11:07:44,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7742 states, 7741 states have (on average 2.6442320113680404) internal successors, (20469), 7741 states have internal predecessors, (20469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:44,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7742 states to 7742 states and 20469 transitions. [2022-01-18 11:07:44,529 INFO L78 Accepts]: Start accepts. Automaton has 7742 states and 20469 transitions. Word has length 109 [2022-01-18 11:07:44,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:44,529 INFO L470 AbstractCegarLoop]: Abstraction has 7742 states and 20469 transitions. [2022-01-18 11:07:44,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:44,529 INFO L276 IsEmpty]: Start isEmpty. Operand 7742 states and 20469 transitions. [2022-01-18 11:07:44,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:44,536 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:44,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:44,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-01-18 11:07:44,537 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:44,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:44,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1981051146, now seen corresponding path program 4 times [2022-01-18 11:07:44,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:44,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147052884] [2022-01-18 11:07:44,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:44,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:44,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:44,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:44,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147052884] [2022-01-18 11:07:44,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147052884] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:44,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:44,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:44,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605701978] [2022-01-18 11:07:44,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:44,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:44,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:44,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:44,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:44,642 INFO L87 Difference]: Start difference. First operand 7742 states and 20469 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:45,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:45,137 INFO L93 Difference]: Finished difference Result 8770 states and 23122 transitions. [2022-01-18 11:07:45,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:07:45,138 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:45,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:45,150 INFO L225 Difference]: With dead ends: 8770 [2022-01-18 11:07:45,151 INFO L226 Difference]: Without dead ends: 8250 [2022-01-18 11:07:45,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=446, Invalid=1716, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:07:45,151 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 299 mSDsluCounter, 3144 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 3355 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:45,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 3355 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:45,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8250 states. [2022-01-18 11:07:45,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8250 to 7738. [2022-01-18 11:07:45,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7738 states, 7737 states have (on average 2.6441773297143594) internal successors, (20458), 7737 states have internal predecessors, (20458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:45,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7738 states to 7738 states and 20458 transitions. [2022-01-18 11:07:45,263 INFO L78 Accepts]: Start accepts. Automaton has 7738 states and 20458 transitions. Word has length 109 [2022-01-18 11:07:45,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:45,264 INFO L470 AbstractCegarLoop]: Abstraction has 7738 states and 20458 transitions. [2022-01-18 11:07:45,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:45,264 INFO L276 IsEmpty]: Start isEmpty. Operand 7738 states and 20458 transitions. [2022-01-18 11:07:45,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:45,271 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:45,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:45,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-01-18 11:07:45,271 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:45,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:45,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1455915610, now seen corresponding path program 5 times [2022-01-18 11:07:45,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:45,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005399933] [2022-01-18 11:07:45,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:45,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:45,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:45,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:45,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005399933] [2022-01-18 11:07:45,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005399933] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:45,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:45,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:45,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917198861] [2022-01-18 11:07:45,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:45,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:45,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:45,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:45,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:45,376 INFO L87 Difference]: Start difference. First operand 7738 states and 20458 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:45,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:45,984 INFO L93 Difference]: Finished difference Result 8806 states and 23217 transitions. [2022-01-18 11:07:45,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:07:45,985 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:45,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:45,996 INFO L225 Difference]: With dead ends: 8806 [2022-01-18 11:07:45,996 INFO L226 Difference]: Without dead ends: 8246 [2022-01-18 11:07:45,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=623, Invalid=2347, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:07:45,997 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 361 mSDsluCounter, 2966 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:45,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 3190 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:46,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8246 states. [2022-01-18 11:07:46,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8246 to 7734. [2022-01-18 11:07:46,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7734 states, 7733 states have (on average 2.6441225914910125) internal successors, (20447), 7733 states have internal predecessors, (20447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:46,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7734 states to 7734 states and 20447 transitions. [2022-01-18 11:07:46,110 INFO L78 Accepts]: Start accepts. Automaton has 7734 states and 20447 transitions. Word has length 109 [2022-01-18 11:07:46,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:46,110 INFO L470 AbstractCegarLoop]: Abstraction has 7734 states and 20447 transitions. [2022-01-18 11:07:46,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:46,110 INFO L276 IsEmpty]: Start isEmpty. Operand 7734 states and 20447 transitions. [2022-01-18 11:07:46,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:46,118 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:46,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:46,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2022-01-18 11:07:46,118 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:46,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:46,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2108208876, now seen corresponding path program 6 times [2022-01-18 11:07:46,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:46,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737056918] [2022-01-18 11:07:46,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:46,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:46,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:46,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:46,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737056918] [2022-01-18 11:07:46,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737056918] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:46,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:46,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:46,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104555113] [2022-01-18 11:07:46,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:46,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:46,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:46,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:46,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:46,225 INFO L87 Difference]: Start difference. First operand 7734 states and 20447 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:46,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:46,978 INFO L93 Difference]: Finished difference Result 8802 states and 23202 transitions. [2022-01-18 11:07:46,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 11:07:46,978 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:46,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:46,988 INFO L225 Difference]: With dead ends: 8802 [2022-01-18 11:07:46,988 INFO L226 Difference]: Without dead ends: 8182 [2022-01-18 11:07:46,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=850, Invalid=3056, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 11:07:46,988 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 431 mSDsluCounter, 2925 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:46,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 3149 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:46,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8182 states. [2022-01-18 11:07:47,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8182 to 7710. [2022-01-18 11:07:47,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.6443118433000388) internal successors, (20385), 7709 states have internal predecessors, (20385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:47,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20385 transitions. [2022-01-18 11:07:47,077 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20385 transitions. Word has length 109 [2022-01-18 11:07:47,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:47,077 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20385 transitions. [2022-01-18 11:07:47,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:47,078 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20385 transitions. [2022-01-18 11:07:47,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:47,085 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:47,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:47,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-01-18 11:07:47,085 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:47,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:47,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1960844258, now seen corresponding path program 7 times [2022-01-18 11:07:47,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:47,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894753499] [2022-01-18 11:07:47,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:47,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:47,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:47,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:47,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894753499] [2022-01-18 11:07:47,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894753499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:47,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:47,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:47,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178365683] [2022-01-18 11:07:47,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:47,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:47,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:47,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:47,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:47,195 INFO L87 Difference]: Start difference. First operand 7710 states and 20385 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:47,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:47,607 INFO L93 Difference]: Finished difference Result 8976 states and 23688 transitions. [2022-01-18 11:07:47,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:07:47,607 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:47,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:47,617 INFO L225 Difference]: With dead ends: 8976 [2022-01-18 11:07:47,618 INFO L226 Difference]: Without dead ends: 8497 [2022-01-18 11:07:47,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=348, Invalid=984, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:07:47,618 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 234 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:47,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 2233 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:47,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8497 states. [2022-01-18 11:07:47,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8497 to 7730. [2022-01-18 11:07:47,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.6440677966101696) internal successors, (20436), 7729 states have internal predecessors, (20436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:47,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20436 transitions. [2022-01-18 11:07:47,713 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20436 transitions. Word has length 109 [2022-01-18 11:07:47,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:47,713 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20436 transitions. [2022-01-18 11:07:47,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:47,714 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20436 transitions. [2022-01-18 11:07:47,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:47,721 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:47,721 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:47,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-01-18 11:07:47,721 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:47,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:47,722 INFO L85 PathProgramCache]: Analyzing trace with hash -706599920, now seen corresponding path program 8 times [2022-01-18 11:07:47,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:47,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234589773] [2022-01-18 11:07:47,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:47,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:47,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:47,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:47,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234589773] [2022-01-18 11:07:47,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234589773] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:47,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:47,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:47,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510097319] [2022-01-18 11:07:47,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:47,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:47,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:47,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:47,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:47,827 INFO L87 Difference]: Start difference. First operand 7730 states and 20436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:48,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:48,252 INFO L93 Difference]: Finished difference Result 8942 states and 23599 transitions. [2022-01-18 11:07:48,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:48,253 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:48,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:48,263 INFO L225 Difference]: With dead ends: 8942 [2022-01-18 11:07:48,263 INFO L226 Difference]: Without dead ends: 8462 [2022-01-18 11:07:48,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=1155, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:07:48,263 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 229 mSDsluCounter, 2713 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2918 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:48,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2918 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:48,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8462 states. [2022-01-18 11:07:48,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8462 to 7726. [2022-01-18 11:07:48,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7726 states, 7725 states have (on average 2.644012944983819) internal successors, (20425), 7725 states have internal predecessors, (20425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:48,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20425 transitions. [2022-01-18 11:07:48,354 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20425 transitions. Word has length 109 [2022-01-18 11:07:48,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:48,354 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20425 transitions. [2022-01-18 11:07:48,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:48,354 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20425 transitions. [2022-01-18 11:07:48,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:48,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:48,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:48,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2022-01-18 11:07:48,362 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:48,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:48,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1827657260, now seen corresponding path program 9 times [2022-01-18 11:07:48,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:48,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487591535] [2022-01-18 11:07:48,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:48,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:48,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:48,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:48,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487591535] [2022-01-18 11:07:48,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487591535] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:48,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:48,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:48,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856844972] [2022-01-18 11:07:48,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:48,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:48,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:48,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:48,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:48,468 INFO L87 Difference]: Start difference. First operand 7726 states and 20425 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:49,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:49,008 INFO L93 Difference]: Finished difference Result 8978 states and 23694 transitions. [2022-01-18 11:07:49,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:07:49,009 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:49,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:49,020 INFO L225 Difference]: With dead ends: 8978 [2022-01-18 11:07:49,021 INFO L226 Difference]: Without dead ends: 8458 [2022-01-18 11:07:49,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=465, Invalid=1697, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:07:49,021 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 292 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 3220 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:49,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 3220 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:49,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8458 states. [2022-01-18 11:07:49,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8458 to 7722. [2022-01-18 11:07:49,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7722 states, 7721 states have (on average 2.6439580365237663) internal successors, (20414), 7721 states have internal predecessors, (20414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:49,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 20414 transitions. [2022-01-18 11:07:49,135 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 20414 transitions. Word has length 109 [2022-01-18 11:07:49,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:49,135 INFO L470 AbstractCegarLoop]: Abstraction has 7722 states and 20414 transitions. [2022-01-18 11:07:49,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:49,136 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 20414 transitions. [2022-01-18 11:07:49,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:49,145 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:49,145 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:49,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2022-01-18 11:07:49,145 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:49,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:49,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1942174500, now seen corresponding path program 10 times [2022-01-18 11:07:49,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:49,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450936737] [2022-01-18 11:07:49,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:49,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:49,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:49,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:49,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450936737] [2022-01-18 11:07:49,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450936737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:49,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:49,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:49,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704335574] [2022-01-18 11:07:49,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:49,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:49,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:49,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:49,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:49,254 INFO L87 Difference]: Start difference. First operand 7722 states and 20414 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:49,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:49,902 INFO L93 Difference]: Finished difference Result 9206 states and 24293 transitions. [2022-01-18 11:07:49,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:07:49,903 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:49,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:49,914 INFO L225 Difference]: With dead ends: 9206 [2022-01-18 11:07:49,914 INFO L226 Difference]: Without dead ends: 8646 [2022-01-18 11:07:49,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:07:49,915 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 373 mSDsluCounter, 2841 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 3059 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:49,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 3059 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:49,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8646 states. [2022-01-18 11:07:49,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8646 to 7718. [2022-01-18 11:07:50,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7718 states, 7717 states have (on average 2.643903071141635) internal successors, (20403), 7717 states have internal predecessors, (20403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:50,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7718 states to 7718 states and 20403 transitions. [2022-01-18 11:07:50,016 INFO L78 Accepts]: Start accepts. Automaton has 7718 states and 20403 transitions. Word has length 109 [2022-01-18 11:07:50,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:50,017 INFO L470 AbstractCegarLoop]: Abstraction has 7718 states and 20403 transitions. [2022-01-18 11:07:50,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:50,017 INFO L276 IsEmpty]: Start isEmpty. Operand 7718 states and 20403 transitions. [2022-01-18 11:07:50,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:50,025 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:50,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:50,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2022-01-18 11:07:50,026 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:50,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:50,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1751861096, now seen corresponding path program 11 times [2022-01-18 11:07:50,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:50,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886220988] [2022-01-18 11:07:50,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:50,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:50,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:50,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:50,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886220988] [2022-01-18 11:07:50,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886220988] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:50,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:50,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:50,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297050438] [2022-01-18 11:07:50,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:50,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:50,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:50,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:50,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:50,140 INFO L87 Difference]: Start difference. First operand 7718 states and 20403 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:50,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:50,613 INFO L93 Difference]: Finished difference Result 8952 states and 23618 transitions. [2022-01-18 11:07:50,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:07:50,614 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:50,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:50,623 INFO L225 Difference]: With dead ends: 8952 [2022-01-18 11:07:50,624 INFO L226 Difference]: Without dead ends: 8473 [2022-01-18 11:07:50,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=366, Invalid=1040, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:07:50,624 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 224 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:50,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2627 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:50,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8473 states. [2022-01-18 11:07:50,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8473 to 7730. [2022-01-18 11:07:50,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.64355026523483) internal successors, (20432), 7729 states have internal predecessors, (20432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:50,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20432 transitions. [2022-01-18 11:07:50,719 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20432 transitions. Word has length 109 [2022-01-18 11:07:50,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:50,719 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20432 transitions. [2022-01-18 11:07:50,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:50,719 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20432 transitions. [2022-01-18 11:07:50,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:50,727 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:50,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:50,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2022-01-18 11:07:50,727 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:50,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:50,727 INFO L85 PathProgramCache]: Analyzing trace with hash -915583082, now seen corresponding path program 12 times [2022-01-18 11:07:50,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:50,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092107175] [2022-01-18 11:07:50,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:50,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:50,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:50,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:50,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092107175] [2022-01-18 11:07:50,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092107175] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:50,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:50,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:50,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302662566] [2022-01-18 11:07:50,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:50,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:50,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:50,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:50,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:50,865 INFO L87 Difference]: Start difference. First operand 7730 states and 20432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:51,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:51,315 INFO L93 Difference]: Finished difference Result 8910 states and 23507 transitions. [2022-01-18 11:07:51,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:51,315 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:51,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:51,325 INFO L225 Difference]: With dead ends: 8910 [2022-01-18 11:07:51,326 INFO L226 Difference]: Without dead ends: 8430 [2022-01-18 11:07:51,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:07:51,326 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 223 mSDsluCounter, 2919 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 3121 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:51,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 3121 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:51,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8430 states. [2022-01-18 11:07:51,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8430 to 7726. [2022-01-18 11:07:51,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7726 states, 7725 states have (on average 2.643495145631068) internal successors, (20421), 7725 states have internal predecessors, (20421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:51,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20421 transitions. [2022-01-18 11:07:51,442 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20421 transitions. Word has length 109 [2022-01-18 11:07:51,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:51,442 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20421 transitions. [2022-01-18 11:07:51,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:51,442 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20421 transitions. [2022-01-18 11:07:51,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:51,450 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:51,450 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:51,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-01-18 11:07:51,450 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:51,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:51,451 INFO L85 PathProgramCache]: Analyzing trace with hash -2036640422, now seen corresponding path program 13 times [2022-01-18 11:07:51,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:51,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844437956] [2022-01-18 11:07:51,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:51,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:51,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:51,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:51,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844437956] [2022-01-18 11:07:51,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844437956] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:51,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:51,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:51,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046153072] [2022-01-18 11:07:51,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:51,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:51,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:51,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:51,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:51,553 INFO L87 Difference]: Start difference. First operand 7726 states and 20421 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:52,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:52,033 INFO L93 Difference]: Finished difference Result 9078 states and 23949 transitions. [2022-01-18 11:07:52,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:07:52,033 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:52,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:52,043 INFO L225 Difference]: With dead ends: 9078 [2022-01-18 11:07:52,044 INFO L226 Difference]: Without dead ends: 8558 [2022-01-18 11:07:52,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 487 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=453, Invalid=1617, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:07:52,044 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 312 mSDsluCounter, 2557 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 2772 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:52,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 2772 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:52,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8558 states. [2022-01-18 11:07:52,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8558 to 7722. [2022-01-18 11:07:52,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7722 states, 7721 states have (on average 2.6434399689159433) internal successors, (20410), 7721 states have internal predecessors, (20410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:52,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 20410 transitions. [2022-01-18 11:07:52,138 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 20410 transitions. Word has length 109 [2022-01-18 11:07:52,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:52,138 INFO L470 AbstractCegarLoop]: Abstraction has 7722 states and 20410 transitions. [2022-01-18 11:07:52,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:52,138 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 20410 transitions. [2022-01-18 11:07:52,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:52,146 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:52,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:52,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-01-18 11:07:52,146 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:52,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:52,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1964010698, now seen corresponding path program 14 times [2022-01-18 11:07:52,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:52,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097906195] [2022-01-18 11:07:52,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:52,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:52,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:52,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:52,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097906195] [2022-01-18 11:07:52,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097906195] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:52,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:52,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:52,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596604089] [2022-01-18 11:07:52,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:52,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:52,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:52,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:52,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:52,248 INFO L87 Difference]: Start difference. First operand 7722 states and 20410 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:52,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:52,739 INFO L93 Difference]: Finished difference Result 8956 states and 23600 transitions. [2022-01-18 11:07:52,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:07:52,739 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:52,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:52,750 INFO L225 Difference]: With dead ends: 8956 [2022-01-18 11:07:52,750 INFO L226 Difference]: Without dead ends: 8434 [2022-01-18 11:07:52,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=500, Invalid=1392, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:07:52,751 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 286 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 2727 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:52,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 2727 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:52,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8434 states. [2022-01-18 11:07:52,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8434 to 7726. [2022-01-18 11:07:52,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7726 states, 7725 states have (on average 2.6429773462783173) internal successors, (20417), 7725 states have internal predecessors, (20417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:52,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20417 transitions. [2022-01-18 11:07:52,853 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20417 transitions. Word has length 109 [2022-01-18 11:07:52,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:52,853 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20417 transitions. [2022-01-18 11:07:52,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:52,853 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20417 transitions. [2022-01-18 11:07:52,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:52,861 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:52,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:52,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-01-18 11:07:52,861 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:52,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:52,862 INFO L85 PathProgramCache]: Analyzing trace with hash 773041248, now seen corresponding path program 15 times [2022-01-18 11:07:52,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:52,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411922624] [2022-01-18 11:07:52,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:52,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:52,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:52,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:52,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411922624] [2022-01-18 11:07:52,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411922624] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:52,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:52,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:52,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306066331] [2022-01-18 11:07:52,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:52,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:52,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:52,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:52,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:52,969 INFO L87 Difference]: Start difference. First operand 7726 states and 20417 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:53,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:53,445 INFO L93 Difference]: Finished difference Result 8888 states and 23434 transitions. [2022-01-18 11:07:53,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:53,446 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:53,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:53,457 INFO L225 Difference]: With dead ends: 8888 [2022-01-18 11:07:53,458 INFO L226 Difference]: Without dead ends: 8409 [2022-01-18 11:07:53,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=386, Invalid=1096, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:07:53,458 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 235 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2739 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:53,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 2739 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:53,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8409 states. [2022-01-18 11:07:53,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8409 to 7730. [2022-01-18 11:07:53,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.6425152024841507) internal successors, (20424), 7729 states have internal predecessors, (20424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:53,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20424 transitions. [2022-01-18 11:07:53,563 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20424 transitions. Word has length 109 [2022-01-18 11:07:53,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:53,563 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20424 transitions. [2022-01-18 11:07:53,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:53,563 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20424 transitions. [2022-01-18 11:07:53,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:53,571 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:53,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:53,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2022-01-18 11:07:53,571 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:53,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:53,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1894402930, now seen corresponding path program 16 times [2022-01-18 11:07:53,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:53,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425520224] [2022-01-18 11:07:53,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:53,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:53,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:53,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:53,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425520224] [2022-01-18 11:07:53,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425520224] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:53,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:53,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:53,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500930208] [2022-01-18 11:07:53,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:53,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:53,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:53,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:53,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:53,680 INFO L87 Difference]: Start difference. First operand 7730 states and 20424 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:54,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:54,058 INFO L93 Difference]: Finished difference Result 8838 states and 23301 transitions. [2022-01-18 11:07:54,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:07:54,059 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:54,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:54,068 INFO L225 Difference]: With dead ends: 8838 [2022-01-18 11:07:54,068 INFO L226 Difference]: Without dead ends: 8346 [2022-01-18 11:07:54,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=1091, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:07:54,069 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 225 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 2337 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:54,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 2337 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:54,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8346 states. [2022-01-18 11:07:54,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8346 to 7714. [2022-01-18 11:07:54,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6438480487488656) internal successors, (20392), 7713 states have internal predecessors, (20392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:54,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20392 transitions. [2022-01-18 11:07:54,159 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20392 transitions. Word has length 109 [2022-01-18 11:07:54,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:54,159 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20392 transitions. [2022-01-18 11:07:54,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:54,159 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20392 transitions. [2022-01-18 11:07:54,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:54,166 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:54,167 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:54,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-01-18 11:07:54,167 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:54,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:54,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1140279682, now seen corresponding path program 17 times [2022-01-18 11:07:54,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:54,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933045711] [2022-01-18 11:07:54,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:54,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:54,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:54,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:54,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933045711] [2022-01-18 11:07:54,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933045711] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:54,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:54,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:54,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408537678] [2022-01-18 11:07:54,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:54,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:54,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:54,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:54,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:54,277 INFO L87 Difference]: Start difference. First operand 7714 states and 20392 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:54,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:54,694 INFO L93 Difference]: Finished difference Result 8820 states and 23255 transitions. [2022-01-18 11:07:54,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:07:54,695 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:54,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:54,705 INFO L225 Difference]: With dead ends: 8820 [2022-01-18 11:07:54,705 INFO L226 Difference]: Without dead ends: 8341 [2022-01-18 11:07:54,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=928, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:07:54,705 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 227 mSDsluCounter, 2411 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2615 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:54,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 2615 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:54,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8341 states. [2022-01-18 11:07:54,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8341 to 7730. [2022-01-18 11:07:54,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.64355026523483) internal successors, (20432), 7729 states have internal predecessors, (20432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:54,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20432 transitions. [2022-01-18 11:07:54,797 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20432 transitions. Word has length 109 [2022-01-18 11:07:54,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:54,797 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20432 transitions. [2022-01-18 11:07:54,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:54,798 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20432 transitions. [2022-01-18 11:07:54,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:54,805 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:54,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:54,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-01-18 11:07:54,805 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:54,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:54,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1527164496, now seen corresponding path program 18 times [2022-01-18 11:07:54,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:54,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464815885] [2022-01-18 11:07:54,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:54,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:54,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:54,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:54,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464815885] [2022-01-18 11:07:54,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464815885] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:54,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:54,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:54,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389241276] [2022-01-18 11:07:54,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:54,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:54,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:54,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:54,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:54,918 INFO L87 Difference]: Start difference. First operand 7730 states and 20432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:55,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:55,348 INFO L93 Difference]: Finished difference Result 8798 states and 23199 transitions. [2022-01-18 11:07:55,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:55,348 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:55,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:55,358 INFO L225 Difference]: With dead ends: 8798 [2022-01-18 11:07:55,359 INFO L226 Difference]: Without dead ends: 8318 [2022-01-18 11:07:55,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1161, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:07:55,359 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 249 mSDsluCounter, 2903 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3098 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:55,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 3098 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:55,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8318 states. [2022-01-18 11:07:55,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8318 to 7726. [2022-01-18 11:07:55,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7726 states, 7725 states have (on average 2.643495145631068) internal successors, (20421), 7725 states have internal predecessors, (20421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:55,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20421 transitions. [2022-01-18 11:07:55,450 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20421 transitions. Word has length 109 [2022-01-18 11:07:55,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:55,450 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20421 transitions. [2022-01-18 11:07:55,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:55,450 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20421 transitions. [2022-01-18 11:07:55,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:55,458 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:55,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:55,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2022-01-18 11:07:55,458 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:55,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:55,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1646745460, now seen corresponding path program 19 times [2022-01-18 11:07:55,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:55,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438646629] [2022-01-18 11:07:55,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:55,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:55,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:55,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:55,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438646629] [2022-01-18 11:07:55,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438646629] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:55,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:55,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:55,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740132591] [2022-01-18 11:07:55,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:55,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:55,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:55,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:55,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:55,569 INFO L87 Difference]: Start difference. First operand 7726 states and 20421 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:56,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:56,125 INFO L93 Difference]: Finished difference Result 8834 states and 23294 transitions. [2022-01-18 11:07:56,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:07:56,125 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:56,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:56,136 INFO L225 Difference]: With dead ends: 8834 [2022-01-18 11:07:56,136 INFO L226 Difference]: Without dead ends: 8314 [2022-01-18 11:07:56,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1708, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:07:56,137 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 323 mSDsluCounter, 2769 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 2975 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:56,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 2975 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:07:56,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8314 states. [2022-01-18 11:07:56,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8314 to 7722. [2022-01-18 11:07:56,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7722 states, 7721 states have (on average 2.6434399689159433) internal successors, (20410), 7721 states have internal predecessors, (20410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:56,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 20410 transitions. [2022-01-18 11:07:56,245 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 20410 transitions. Word has length 109 [2022-01-18 11:07:56,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:56,245 INFO L470 AbstractCegarLoop]: Abstraction has 7722 states and 20410 transitions. [2022-01-18 11:07:56,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:56,245 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 20410 transitions. [2022-01-18 11:07:56,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:56,254 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:56,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:56,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2022-01-18 11:07:56,254 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:56,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:56,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1121609924, now seen corresponding path program 20 times [2022-01-18 11:07:56,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:56,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933617955] [2022-01-18 11:07:56,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:56,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:56,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:56,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:56,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933617955] [2022-01-18 11:07:56,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933617955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:56,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:56,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:56,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101028030] [2022-01-18 11:07:56,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:56,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:56,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:56,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:56,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:56,409 INFO L87 Difference]: Start difference. First operand 7722 states and 20410 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:57,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:57,057 INFO L93 Difference]: Finished difference Result 8870 states and 23389 transitions. [2022-01-18 11:07:57,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:07:57,057 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:57,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:57,068 INFO L225 Difference]: With dead ends: 8870 [2022-01-18 11:07:57,068 INFO L226 Difference]: Without dead ends: 8310 [2022-01-18 11:07:57,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=637, Invalid=2333, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:07:57,069 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 390 mSDsluCounter, 2831 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:57,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 3044 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:57,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8310 states. [2022-01-18 11:07:57,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8310 to 7718. [2022-01-18 11:07:57,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7718 states, 7717 states have (on average 2.643384735000648) internal successors, (20399), 7717 states have internal predecessors, (20399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:57,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7718 states to 7718 states and 20399 transitions. [2022-01-18 11:07:57,169 INFO L78 Accepts]: Start accepts. Automaton has 7718 states and 20399 transitions. Word has length 109 [2022-01-18 11:07:57,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:57,169 INFO L470 AbstractCegarLoop]: Abstraction has 7718 states and 20399 transitions. [2022-01-18 11:07:57,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:57,169 INFO L276 IsEmpty]: Start isEmpty. Operand 7718 states and 20399 transitions. [2022-01-18 11:07:57,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:57,176 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:57,176 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:57,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2022-01-18 11:07:57,177 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:57,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:57,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1773903190, now seen corresponding path program 21 times [2022-01-18 11:07:57,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:57,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891936381] [2022-01-18 11:07:57,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:57,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:57,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:57,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:57,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891936381] [2022-01-18 11:07:57,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891936381] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:57,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:57,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:57,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313014058] [2022-01-18 11:07:57,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:57,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:57,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:57,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:57,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:57,287 INFO L87 Difference]: Start difference. First operand 7718 states and 20399 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:58,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:58,030 INFO L93 Difference]: Finished difference Result 8786 states and 23154 transitions. [2022-01-18 11:07:58,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:07:58,031 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:58,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:58,041 INFO L225 Difference]: With dead ends: 8786 [2022-01-18 11:07:58,041 INFO L226 Difference]: Without dead ends: 8162 [2022-01-18 11:07:58,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1067 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=849, Invalid=2933, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:07:58,042 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 430 mSDsluCounter, 2786 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 2998 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:58,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 2998 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:58,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8162 states. [2022-01-18 11:07:58,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8162 to 7690. [2022-01-18 11:07:58,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6440369358824296) internal successors, (20330), 7689 states have internal predecessors, (20330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:58,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20330 transitions. [2022-01-18 11:07:58,171 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20330 transitions. Word has length 109 [2022-01-18 11:07:58,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:58,172 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20330 transitions. [2022-01-18 11:07:58,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:58,172 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20330 transitions. [2022-01-18 11:07:58,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:58,183 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:58,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:58,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2022-01-18 11:07:58,183 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:58,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:58,183 INFO L85 PathProgramCache]: Analyzing trace with hash 252922488, now seen corresponding path program 22 times [2022-01-18 11:07:58,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:58,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911394188] [2022-01-18 11:07:58,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:58,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:58,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:58,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:58,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911394188] [2022-01-18 11:07:58,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911394188] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:58,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:58,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:58,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452730326] [2022-01-18 11:07:58,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:58,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:58,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:58,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:58,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:58,335 INFO L87 Difference]: Start difference. First operand 7690 states and 20330 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:58,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:58,794 INFO L93 Difference]: Finished difference Result 9176 states and 24238 transitions. [2022-01-18 11:07:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:07:58,794 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:58,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:58,805 INFO L225 Difference]: With dead ends: 9176 [2022-01-18 11:07:58,805 INFO L226 Difference]: Without dead ends: 8697 [2022-01-18 11:07:58,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=990, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:07:58,806 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 230 mSDsluCounter, 2384 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:58,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2582 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:58,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2022-01-18 11:07:58,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 7714. [2022-01-18 11:07:58,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6438480487488656) internal successors, (20392), 7713 states have internal predecessors, (20392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:58,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20392 transitions. [2022-01-18 11:07:58,906 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20392 transitions. Word has length 109 [2022-01-18 11:07:58,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:58,907 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20392 transitions. [2022-01-18 11:07:58,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:58,907 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20392 transitions. [2022-01-18 11:07:58,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:58,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:58,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:58,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-01-18 11:07:58,915 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:58,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:58,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1880445606, now seen corresponding path program 23 times [2022-01-18 11:07:58,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:58,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035611725] [2022-01-18 11:07:58,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:58,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:59,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:59,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:59,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035611725] [2022-01-18 11:07:59,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035611725] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:59,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:59,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:59,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373187132] [2022-01-18 11:07:59,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:59,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:59,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:59,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:59,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:59,031 INFO L87 Difference]: Start difference. First operand 7714 states and 20392 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:59,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:07:59,516 INFO L93 Difference]: Finished difference Result 9142 states and 24149 transitions. [2022-01-18 11:07:59,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:07:59,517 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:07:59,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:07:59,528 INFO L225 Difference]: With dead ends: 9142 [2022-01-18 11:07:59,528 INFO L226 Difference]: Without dead ends: 8662 [2022-01-18 11:07:59,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:07:59,529 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 216 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2999 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:07:59,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2999 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:07:59,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8662 states. [2022-01-18 11:07:59,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8662 to 7710. [2022-01-18 11:07:59,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.643792969256713) internal successors, (20381), 7709 states have internal predecessors, (20381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:59,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20381 transitions. [2022-01-18 11:07:59,629 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20381 transitions. Word has length 109 [2022-01-18 11:07:59,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:07:59,630 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20381 transitions. [2022-01-18 11:07:59,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:07:59,630 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20381 transitions. [2022-01-18 11:07:59,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:07:59,639 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:07:59,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:07:59,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-01-18 11:07:59,639 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:07:59,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:07:59,639 INFO L85 PathProgramCache]: Analyzing trace with hash 759388266, now seen corresponding path program 24 times [2022-01-18 11:07:59,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:07:59,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231237035] [2022-01-18 11:07:59,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:07:59,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:07:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:07:59,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:07:59,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:07:59,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231237035] [2022-01-18 11:07:59,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231237035] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:07:59,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:07:59,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:07:59,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813151202] [2022-01-18 11:07:59,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:07:59,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:07:59,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:07:59,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:07:59,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:07:59,760 INFO L87 Difference]: Start difference. First operand 7710 states and 20381 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:00,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:00,329 INFO L93 Difference]: Finished difference Result 9178 states and 24244 transitions. [2022-01-18 11:08:00,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:08:00,330 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:00,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:00,341 INFO L225 Difference]: With dead ends: 9178 [2022-01-18 11:08:00,341 INFO L226 Difference]: Without dead ends: 8658 [2022-01-18 11:08:00,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=474, Invalid=1688, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:08:00,341 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 305 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:00,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 2906 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:00,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8658 states. [2022-01-18 11:08:00,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8658 to 7706. [2022-01-18 11:08:00,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.643737832576249) internal successors, (20370), 7705 states have internal predecessors, (20370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:00,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20370 transitions. [2022-01-18 11:08:00,452 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20370 transitions. Word has length 109 [2022-01-18 11:08:00,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:00,452 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20370 transitions. [2022-01-18 11:08:00,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:00,452 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20370 transitions. [2022-01-18 11:08:00,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:00,461 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:00,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:00,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-01-18 11:08:00,461 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:00,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:00,462 INFO L85 PathProgramCache]: Analyzing trace with hash 234252730, now seen corresponding path program 25 times [2022-01-18 11:08:00,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:00,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838367387] [2022-01-18 11:08:00,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:00,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:00,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:00,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:00,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838367387] [2022-01-18 11:08:00,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838367387] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:00,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:00,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:00,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069686223] [2022-01-18 11:08:00,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:00,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:00,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:00,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:00,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:00,574 INFO L87 Difference]: Start difference. First operand 7706 states and 20370 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:01,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:01,191 INFO L93 Difference]: Finished difference Result 9406 states and 24843 transitions. [2022-01-18 11:08:01,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:08:01,191 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:01,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:01,202 INFO L225 Difference]: With dead ends: 9406 [2022-01-18 11:08:01,202 INFO L226 Difference]: Without dead ends: 8846 [2022-01-18 11:08:01,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=645, Invalid=2217, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:08:01,203 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 380 mSDsluCounter, 2743 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 2959 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:01,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 2959 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:01,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8846 states. [2022-01-18 11:08:01,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8846 to 7702. [2022-01-18 11:08:01,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7702 states, 7701 states have (on average 2.6436826386183614) internal successors, (20359), 7701 states have internal predecessors, (20359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:01,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20359 transitions. [2022-01-18 11:08:01,297 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20359 transitions. Word has length 109 [2022-01-18 11:08:01,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:01,298 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20359 transitions. [2022-01-18 11:08:01,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:01,298 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20359 transitions. [2022-01-18 11:08:01,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:01,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:01,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:01,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2022-01-18 11:08:01,305 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:01,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:01,306 INFO L85 PathProgramCache]: Analyzing trace with hash 43939326, now seen corresponding path program 26 times [2022-01-18 11:08:01,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:01,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25562387] [2022-01-18 11:08:01,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:01,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:01,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:01,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:01,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25562387] [2022-01-18 11:08:01,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25562387] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:01,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:01,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:01,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302084810] [2022-01-18 11:08:01,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:01,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:01,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:01,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:01,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:01,418 INFO L87 Difference]: Start difference. First operand 7702 states and 20359 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:01,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:01,859 INFO L93 Difference]: Finished difference Result 9152 states and 24168 transitions. [2022-01-18 11:08:01,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:08:01,860 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:01,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:01,870 INFO L225 Difference]: With dead ends: 9152 [2022-01-18 11:08:01,870 INFO L226 Difference]: Without dead ends: 8673 [2022-01-18 11:08:01,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=359, Invalid=1047, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:08:01,870 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 233 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2363 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:01,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2363 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:01,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8673 states. [2022-01-18 11:08:01,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8673 to 7714. [2022-01-18 11:08:01,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6433294437961883) internal successors, (20388), 7713 states have internal predecessors, (20388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:01,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20388 transitions. [2022-01-18 11:08:01,965 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20388 transitions. Word has length 109 [2022-01-18 11:08:01,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:01,965 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20388 transitions. [2022-01-18 11:08:01,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:01,966 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20388 transitions. [2022-01-18 11:08:01,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:01,973 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:01,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:01,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-01-18 11:08:01,974 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:01,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:01,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1671462444, now seen corresponding path program 27 times [2022-01-18 11:08:01,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:01,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756155105] [2022-01-18 11:08:01,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:01,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:02,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:02,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:02,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756155105] [2022-01-18 11:08:02,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756155105] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:02,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:02,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:02,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424922642] [2022-01-18 11:08:02,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:02,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:02,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:02,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:02,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:02,102 INFO L87 Difference]: Start difference. First operand 7714 states and 20388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:02,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:02,616 INFO L93 Difference]: Finished difference Result 9110 states and 24057 transitions. [2022-01-18 11:08:02,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:02,617 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:02,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:02,630 INFO L225 Difference]: With dead ends: 9110 [2022-01-18 11:08:02,631 INFO L226 Difference]: Without dead ends: 8630 [2022-01-18 11:08:02,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=336, Invalid=1146, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:08:02,631 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 232 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:02,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 2815 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:08:02,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8630 states. [2022-01-18 11:08:02,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8630 to 7710. [2022-01-18 11:08:02,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.643274095213387) internal successors, (20377), 7709 states have internal predecessors, (20377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:02,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20377 transitions. [2022-01-18 11:08:02,748 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20377 transitions. Word has length 109 [2022-01-18 11:08:02,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:02,748 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20377 transitions. [2022-01-18 11:08:02,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:02,748 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20377 transitions. [2022-01-18 11:08:02,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:02,756 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:02,756 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:02,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-01-18 11:08:02,757 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:02,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:02,757 INFO L85 PathProgramCache]: Analyzing trace with hash 550405104, now seen corresponding path program 28 times [2022-01-18 11:08:02,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:02,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964701878] [2022-01-18 11:08:02,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:02,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:02,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:02,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:02,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964701878] [2022-01-18 11:08:02,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964701878] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:02,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:02,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:02,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243065843] [2022-01-18 11:08:02,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:02,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:02,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:02,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:02,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:02,872 INFO L87 Difference]: Start difference. First operand 7710 states and 20377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:03,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:03,408 INFO L93 Difference]: Finished difference Result 9278 states and 24499 transitions. [2022-01-18 11:08:03,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:08:03,409 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:03,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:03,421 INFO L225 Difference]: With dead ends: 9278 [2022-01-18 11:08:03,421 INFO L226 Difference]: Without dead ends: 8758 [2022-01-18 11:08:03,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:08:03,421 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 316 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:03,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 2884 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:03,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8758 states. [2022-01-18 11:08:03,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8758 to 7706. [2022-01-18 11:08:03,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.643218689162881) internal successors, (20366), 7705 states have internal predecessors, (20366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:03,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20366 transitions. [2022-01-18 11:08:03,537 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20366 transitions. Word has length 109 [2022-01-18 11:08:03,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:03,538 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20366 transitions. [2022-01-18 11:08:03,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:03,538 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20366 transitions. [2022-01-18 11:08:03,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:03,546 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:03,546 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:03,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2022-01-18 11:08:03,547 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:03,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:03,547 INFO L85 PathProgramCache]: Analyzing trace with hash 623034828, now seen corresponding path program 29 times [2022-01-18 11:08:03,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:03,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480429265] [2022-01-18 11:08:03,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:03,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:03,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:03,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:03,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480429265] [2022-01-18 11:08:03,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480429265] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:03,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:03,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:03,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431115150] [2022-01-18 11:08:03,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:03,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:03,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:03,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:03,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:03,660 INFO L87 Difference]: Start difference. First operand 7706 states and 20366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:04,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:04,225 INFO L93 Difference]: Finished difference Result 9196 states and 24260 transitions. [2022-01-18 11:08:04,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:08:04,225 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:04,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:04,236 INFO L225 Difference]: With dead ends: 9196 [2022-01-18 11:08:04,237 INFO L226 Difference]: Without dead ends: 8674 [2022-01-18 11:08:04,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=506, Invalid=1474, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:08:04,237 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 291 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:04,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 2885 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:08:04,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8674 states. [2022-01-18 11:08:04,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8674 to 7710. [2022-01-18 11:08:04,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642755221170061) internal successors, (20373), 7709 states have internal predecessors, (20373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:04,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20373 transitions. [2022-01-18 11:08:04,357 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20373 transitions. Word has length 109 [2022-01-18 11:08:04,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:04,358 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20373 transitions. [2022-01-18 11:08:04,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:04,358 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20373 transitions. [2022-01-18 11:08:04,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:04,366 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:04,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:04,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2022-01-18 11:08:04,366 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:04,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:04,367 INFO L85 PathProgramCache]: Analyzing trace with hash -934880522, now seen corresponding path program 30 times [2022-01-18 11:08:04,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:04,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62751245] [2022-01-18 11:08:04,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:04,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:04,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:04,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:04,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62751245] [2022-01-18 11:08:04,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62751245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:04,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:04,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:04,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887909555] [2022-01-18 11:08:04,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:04,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:04,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:04,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:04,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:04,484 INFO L87 Difference]: Start difference. First operand 7710 states and 20373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:04,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:04,969 INFO L93 Difference]: Finished difference Result 9096 states and 24006 transitions. [2022-01-18 11:08:04,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:04,970 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:04,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:04,980 INFO L225 Difference]: With dead ends: 9096 [2022-01-18 11:08:04,980 INFO L226 Difference]: Without dead ends: 8617 [2022-01-18 11:08:04,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=378, Invalid=1104, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:08:04,980 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 219 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 3004 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:04,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 3004 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:04,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8617 states. [2022-01-18 11:08:05,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8617 to 7714. [2022-01-18 11:08:05,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6422922338908337) internal successors, (20380), 7713 states have internal predecessors, (20380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:05,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20380 transitions. [2022-01-18 11:08:05,072 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20380 transitions. Word has length 109 [2022-01-18 11:08:05,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:05,073 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20380 transitions. [2022-01-18 11:08:05,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:05,073 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20380 transitions. [2022-01-18 11:08:05,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:05,080 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:05,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:05,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2022-01-18 11:08:05,080 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:05,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:05,081 INFO L85 PathProgramCache]: Analyzing trace with hash 692642596, now seen corresponding path program 31 times [2022-01-18 11:08:05,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:05,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923993618] [2022-01-18 11:08:05,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:05,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:05,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:05,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:05,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923993618] [2022-01-18 11:08:05,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923993618] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:05,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:05,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:05,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673047697] [2022-01-18 11:08:05,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:05,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:05,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:05,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:05,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:05,191 INFO L87 Difference]: Start difference. First operand 7714 states and 20380 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:05,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:05,623 INFO L93 Difference]: Finished difference Result 9046 states and 23873 transitions. [2022-01-18 11:08:05,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:08:05,624 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:05,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:05,636 INFO L225 Difference]: With dead ends: 9046 [2022-01-18 11:08:05,636 INFO L226 Difference]: Without dead ends: 8554 [2022-01-18 11:08:05,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:08:05,637 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 223 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:05,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 2826 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:05,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2022-01-18 11:08:05,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 7698. [2022-01-18 11:08:05,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643627387293751) internal successors, (20348), 7697 states have internal predecessors, (20348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:05,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20348 transitions. [2022-01-18 11:08:05,749 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20348 transitions. Word has length 109 [2022-01-18 11:08:05,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:05,749 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20348 transitions. [2022-01-18 11:08:05,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:05,749 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20348 transitions. [2022-01-18 11:08:05,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:05,757 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:05,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:05,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2022-01-18 11:08:05,757 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:05,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:05,758 INFO L85 PathProgramCache]: Analyzing trace with hash -567642088, now seen corresponding path program 32 times [2022-01-18 11:08:05,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:05,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501380857] [2022-01-18 11:08:05,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:05,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:05,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:05,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:05,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501380857] [2022-01-18 11:08:05,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501380857] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:05,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:05,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:05,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933158016] [2022-01-18 11:08:05,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:05,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:05,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:05,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:05,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:05,874 INFO L87 Difference]: Start difference. First operand 7698 states and 20348 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:06,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:06,310 INFO L93 Difference]: Finished difference Result 8988 states and 23717 transitions. [2022-01-18 11:08:06,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:08:06,310 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:06,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:06,321 INFO L225 Difference]: With dead ends: 8988 [2022-01-18 11:08:06,321 INFO L226 Difference]: Without dead ends: 8509 [2022-01-18 11:08:06,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:08:06,322 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 210 mSDsluCounter, 2330 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 2529 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:06,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 2529 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:06,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8509 states. [2022-01-18 11:08:06,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8509 to 7714. [2022-01-18 11:08:06,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6433294437961883) internal successors, (20388), 7713 states have internal predecessors, (20388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:06,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20388 transitions. [2022-01-18 11:08:06,424 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20388 transitions. Word has length 109 [2022-01-18 11:08:06,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:06,424 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20388 transitions. [2022-01-18 11:08:06,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:06,424 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20388 transitions. [2022-01-18 11:08:06,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:06,432 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:06,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:06,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-01-18 11:08:06,433 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:06,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:06,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1059881030, now seen corresponding path program 33 times [2022-01-18 11:08:06,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:06,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522490467] [2022-01-18 11:08:06,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:06,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:06,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:06,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:06,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522490467] [2022-01-18 11:08:06,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522490467] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:06,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:06,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:06,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374749341] [2022-01-18 11:08:06,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:06,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:06,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:06,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:06,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:06,550 INFO L87 Difference]: Start difference. First operand 7714 states and 20388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:07,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:07,011 INFO L93 Difference]: Finished difference Result 8958 states and 23639 transitions. [2022-01-18 11:08:07,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:07,011 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:07,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:07,021 INFO L225 Difference]: With dead ends: 8958 [2022-01-18 11:08:07,022 INFO L226 Difference]: Without dead ends: 8478 [2022-01-18 11:08:07,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=326, Invalid=1156, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:08:07,022 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 228 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 2830 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:07,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 2830 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:07,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8478 states. [2022-01-18 11:08:07,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8478 to 7710. [2022-01-18 11:08:07,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.643274095213387) internal successors, (20377), 7709 states have internal predecessors, (20377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:07,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20377 transitions. [2022-01-18 11:08:07,115 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20377 transitions. Word has length 109 [2022-01-18 11:08:07,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:07,115 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20377 transitions. [2022-01-18 11:08:07,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:07,115 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20377 transitions. [2022-01-18 11:08:07,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:07,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:07,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:07,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-01-18 11:08:07,123 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:07,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:07,123 INFO L85 PathProgramCache]: Analyzing trace with hash -61176310, now seen corresponding path program 34 times [2022-01-18 11:08:07,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:07,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044894663] [2022-01-18 11:08:07,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:07,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:07,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:07,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:07,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044894663] [2022-01-18 11:08:07,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044894663] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:07,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:07,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:07,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696640343] [2022-01-18 11:08:07,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:07,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:07,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:07,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:07,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:07,236 INFO L87 Difference]: Start difference. First operand 7710 states and 20377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:07,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:07,770 INFO L93 Difference]: Finished difference Result 8994 states and 23734 transitions. [2022-01-18 11:08:07,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:08:07,771 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:07,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:07,781 INFO L225 Difference]: With dead ends: 8994 [2022-01-18 11:08:07,781 INFO L226 Difference]: Without dead ends: 8474 [2022-01-18 11:08:07,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1698, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:08:07,781 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 283 mSDsluCounter, 2900 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:07,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 3108 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:07,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8474 states. [2022-01-18 11:08:07,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8474 to 7706. [2022-01-18 11:08:07,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.643218689162881) internal successors, (20366), 7705 states have internal predecessors, (20366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:07,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20366 transitions. [2022-01-18 11:08:07,873 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20366 transitions. Word has length 109 [2022-01-18 11:08:07,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:07,873 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20366 transitions. [2022-01-18 11:08:07,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:07,873 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20366 transitions. [2022-01-18 11:08:07,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:07,880 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:07,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:07,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-01-18 11:08:07,881 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:07,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:07,881 INFO L85 PathProgramCache]: Analyzing trace with hash -586311846, now seen corresponding path program 35 times [2022-01-18 11:08:07,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:07,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264906108] [2022-01-18 11:08:07,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:07,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:07,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:07,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:07,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264906108] [2022-01-18 11:08:07,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264906108] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:07,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:07,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:07,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247673095] [2022-01-18 11:08:07,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:07,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:07,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:07,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:07,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:07,997 INFO L87 Difference]: Start difference. First operand 7706 states and 20366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:08,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:08,719 INFO L93 Difference]: Finished difference Result 9030 states and 23829 transitions. [2022-01-18 11:08:08,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:08:08,719 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:08,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:08,729 INFO L225 Difference]: With dead ends: 9030 [2022-01-18 11:08:08,730 INFO L226 Difference]: Without dead ends: 8470 [2022-01-18 11:08:08,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=649, Invalid=2213, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:08:08,730 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 339 mSDsluCounter, 2732 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:08,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [339 Valid, 2953 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:08,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2022-01-18 11:08:08,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 7702. [2022-01-18 11:08:08,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7702 states, 7701 states have (on average 2.6431632255551225) internal successors, (20355), 7701 states have internal predecessors, (20355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:08,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20355 transitions. [2022-01-18 11:08:08,848 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20355 transitions. Word has length 109 [2022-01-18 11:08:08,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:08,848 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20355 transitions. [2022-01-18 11:08:08,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:08,848 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20355 transitions. [2022-01-18 11:08:08,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:08,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:08,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:08,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2022-01-18 11:08:08,856 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:08,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:08,857 INFO L85 PathProgramCache]: Analyzing trace with hash 65981420, now seen corresponding path program 36 times [2022-01-18 11:08:08,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:08,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263335147] [2022-01-18 11:08:08,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:08,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:08,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:08,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263335147] [2022-01-18 11:08:08,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263335147] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:08,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:08,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:08,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532546323] [2022-01-18 11:08:08,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:08,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:08,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:08,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:08,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:08,980 INFO L87 Difference]: Start difference. First operand 7702 states and 20355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:09,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:09,735 INFO L93 Difference]: Finished difference Result 9238 states and 24361 transitions. [2022-01-18 11:08:09,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 11:08:09,735 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:09,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:09,747 INFO L225 Difference]: With dead ends: 9238 [2022-01-18 11:08:09,747 INFO L226 Difference]: Without dead ends: 8634 [2022-01-18 11:08:09,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=847, Invalid=2813, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:08:09,748 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 439 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 3169 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:09,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 3169 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:09,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8634 states. [2022-01-18 11:08:09,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8634 to 7694. [2022-01-18 11:08:09,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6435720785129337) internal successors, (20337), 7693 states have internal predecessors, (20337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:09,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20337 transitions. [2022-01-18 11:08:09,852 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20337 transitions. Word has length 109 [2022-01-18 11:08:09,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:09,852 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20337 transitions. [2022-01-18 11:08:09,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:09,853 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20337 transitions. [2022-01-18 11:08:09,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:09,861 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:09,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:09,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-01-18 11:08:09,861 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:09,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:09,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1695824410, now seen corresponding path program 37 times [2022-01-18 11:08:09,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:09,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278680726] [2022-01-18 11:08:09,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:09,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:09,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:09,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:09,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278680726] [2022-01-18 11:08:09,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278680726] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:09,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:09,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:09,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925835926] [2022-01-18 11:08:09,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:09,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:09,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:09,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:09,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:09,971 INFO L87 Difference]: Start difference. First operand 7694 states and 20337 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:10,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:10,394 INFO L93 Difference]: Finished difference Result 8956 states and 23629 transitions. [2022-01-18 11:08:10,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:08:10,394 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:10,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:10,404 INFO L225 Difference]: With dead ends: 8956 [2022-01-18 11:08:10,405 INFO L226 Difference]: Without dead ends: 8477 [2022-01-18 11:08:10,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=338, Invalid=994, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:08:10,405 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 221 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:10,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2399 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:10,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8477 states. [2022-01-18 11:08:10,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8477 to 7714. [2022-01-18 11:08:10,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6433294437961883) internal successors, (20388), 7713 states have internal predecessors, (20388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:10,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20388 transitions. [2022-01-18 11:08:10,497 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20388 transitions. Word has length 109 [2022-01-18 11:08:10,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:10,497 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20388 transitions. [2022-01-18 11:08:10,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:10,497 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20388 transitions. [2022-01-18 11:08:10,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:10,504 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:10,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:10,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-01-18 11:08:10,504 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:10,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:10,505 INFO L85 PathProgramCache]: Analyzing trace with hash -971619768, now seen corresponding path program 38 times [2022-01-18 11:08:10,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:10,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467204043] [2022-01-18 11:08:10,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:10,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:10,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:10,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:10,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467204043] [2022-01-18 11:08:10,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467204043] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:10,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:10,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:10,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932284557] [2022-01-18 11:08:10,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:10,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:10,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:10,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:10,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:10,609 INFO L87 Difference]: Start difference. First operand 7714 states and 20388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:11,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:11,043 INFO L93 Difference]: Finished difference Result 8922 states and 23540 transitions. [2022-01-18 11:08:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:11,044 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:11,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:11,054 INFO L225 Difference]: With dead ends: 8922 [2022-01-18 11:08:11,054 INFO L226 Difference]: Without dead ends: 8442 [2022-01-18 11:08:11,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:08:11,054 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 220 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:11,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2626 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:11,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8442 states. [2022-01-18 11:08:11,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8442 to 7710. [2022-01-18 11:08:11,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.643274095213387) internal successors, (20377), 7709 states have internal predecessors, (20377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:11,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20377 transitions. [2022-01-18 11:08:11,143 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20377 transitions. Word has length 109 [2022-01-18 11:08:11,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:11,144 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20377 transitions. [2022-01-18 11:08:11,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:11,144 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20377 transitions. [2022-01-18 11:08:11,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:11,152 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:11,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:11,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2022-01-18 11:08:11,153 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:11,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:11,153 INFO L85 PathProgramCache]: Analyzing trace with hash -2092677108, now seen corresponding path program 39 times [2022-01-18 11:08:11,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:11,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108375979] [2022-01-18 11:08:11,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:11,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:11,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:11,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:11,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108375979] [2022-01-18 11:08:11,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108375979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:11,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:11,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:11,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585865811] [2022-01-18 11:08:11,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:11,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:11,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:11,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:11,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:11,282 INFO L87 Difference]: Start difference. First operand 7710 states and 20377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:11,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:11,811 INFO L93 Difference]: Finished difference Result 8958 states and 23635 transitions. [2022-01-18 11:08:11,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:08:11,812 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:11,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:11,822 INFO L225 Difference]: With dead ends: 8958 [2022-01-18 11:08:11,822 INFO L226 Difference]: Without dead ends: 8438 [2022-01-18 11:08:11,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=485, Invalid=1677, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:08:11,823 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 289 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 2707 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:11,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 2707 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:11,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8438 states. [2022-01-18 11:08:11,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8438 to 7706. [2022-01-18 11:08:11,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.643218689162881) internal successors, (20366), 7705 states have internal predecessors, (20366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:11,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20366 transitions. [2022-01-18 11:08:11,916 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20366 transitions. Word has length 109 [2022-01-18 11:08:11,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:11,916 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20366 transitions. [2022-01-18 11:08:11,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:11,916 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20366 transitions. [2022-01-18 11:08:11,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:11,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:11,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:11,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2022-01-18 11:08:11,923 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:11,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:11,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1677154652, now seen corresponding path program 40 times [2022-01-18 11:08:11,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:11,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162667095] [2022-01-18 11:08:11,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:11,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:12,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:12,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162667095] [2022-01-18 11:08:12,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162667095] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:12,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:12,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:12,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959488495] [2022-01-18 11:08:12,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:12,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:12,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:12,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:12,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:12,030 INFO L87 Difference]: Start difference. First operand 7706 states and 20366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:12,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:12,634 INFO L93 Difference]: Finished difference Result 9102 states and 24003 transitions. [2022-01-18 11:08:12,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:08:12,635 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:12,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:12,646 INFO L225 Difference]: With dead ends: 9102 [2022-01-18 11:08:12,647 INFO L226 Difference]: Without dead ends: 8542 [2022-01-18 11:08:12,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=639, Invalid=2117, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:08:12,647 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 362 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:12,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 2740 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:12,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8542 states. [2022-01-18 11:08:12,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8542 to 7702. [2022-01-18 11:08:12,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7702 states, 7701 states have (on average 2.6431632255551225) internal successors, (20355), 7701 states have internal predecessors, (20355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:12,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20355 transitions. [2022-01-18 11:08:12,759 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20355 transitions. Word has length 109 [2022-01-18 11:08:12,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:12,759 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20355 transitions. [2022-01-18 11:08:12,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:12,759 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20355 transitions. [2022-01-18 11:08:12,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:12,767 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:12,767 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:12,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2022-01-18 11:08:12,767 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:12,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:12,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1486841248, now seen corresponding path program 41 times [2022-01-18 11:08:12,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:12,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720423255] [2022-01-18 11:08:12,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:12,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:12,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:12,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:12,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720423255] [2022-01-18 11:08:12,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720423255] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:12,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:12,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:12,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398341551] [2022-01-18 11:08:12,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:12,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:12,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:12,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:12,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:12,881 INFO L87 Difference]: Start difference. First operand 7702 states and 20355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:13,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:13,327 INFO L93 Difference]: Finished difference Result 9028 states and 23823 transitions. [2022-01-18 11:08:13,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:08:13,327 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:13,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:13,337 INFO L225 Difference]: With dead ends: 9028 [2022-01-18 11:08:13,337 INFO L226 Difference]: Without dead ends: 8549 [2022-01-18 11:08:13,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=355, Invalid=1051, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:08:13,337 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 236 mSDsluCounter, 2136 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2337 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:13,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2337 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:13,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8549 states. [2022-01-18 11:08:13,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8549 to 7714. [2022-01-18 11:08:13,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.642810838843511) internal successors, (20384), 7713 states have internal predecessors, (20384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:13,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20384 transitions. [2022-01-18 11:08:13,427 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20384 transitions. Word has length 109 [2022-01-18 11:08:13,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:13,427 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20384 transitions. [2022-01-18 11:08:13,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:13,427 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20384 transitions. [2022-01-18 11:08:13,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:13,435 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:13,435 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:13,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2022-01-18 11:08:13,435 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:13,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:13,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1180602930, now seen corresponding path program 42 times [2022-01-18 11:08:13,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:13,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147451524] [2022-01-18 11:08:13,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:13,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:13,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:13,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:13,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147451524] [2022-01-18 11:08:13,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147451524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:13,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:13,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:13,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247102760] [2022-01-18 11:08:13,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:13,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:13,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:13,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:13,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:13,547 INFO L87 Difference]: Start difference. First operand 7714 states and 20384 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:13,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:13,978 INFO L93 Difference]: Finished difference Result 8986 states and 23712 transitions. [2022-01-18 11:08:13,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:13,979 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:13,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:13,989 INFO L225 Difference]: With dead ends: 8986 [2022-01-18 11:08:13,989 INFO L226 Difference]: Without dead ends: 8506 [2022-01-18 11:08:13,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:08:13,989 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 239 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:13,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 2603 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:13,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8506 states. [2022-01-18 11:08:14,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8506 to 7710. [2022-01-18 11:08:14,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642755221170061) internal successors, (20373), 7709 states have internal predecessors, (20373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:14,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20373 transitions. [2022-01-18 11:08:14,081 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20373 transitions. Word has length 109 [2022-01-18 11:08:14,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:14,081 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20373 transitions. [2022-01-18 11:08:14,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:14,081 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20373 transitions. [2022-01-18 11:08:14,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:14,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:14,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:14,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-01-18 11:08:14,089 INFO L402 AbstractCegarLoop]: === Iteration 345 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:14,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:14,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1993307026, now seen corresponding path program 43 times [2022-01-18 11:08:14,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:14,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131121424] [2022-01-18 11:08:14,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:14,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:14,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:14,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:14,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131121424] [2022-01-18 11:08:14,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131121424] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:14,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:14,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:14,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584281236] [2022-01-18 11:08:14,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:14,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:14,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:14,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:14,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:14,198 INFO L87 Difference]: Start difference. First operand 7710 states and 20373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:14,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:14,701 INFO L93 Difference]: Finished difference Result 9114 states and 24044 transitions. [2022-01-18 11:08:14,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:08:14,701 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:14,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:14,711 INFO L225 Difference]: With dead ends: 9114 [2022-01-18 11:08:14,711 INFO L226 Difference]: Without dead ends: 8594 [2022-01-18 11:08:14,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:08:14,712 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 317 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:14,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 2656 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:14,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8594 states. [2022-01-18 11:08:14,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8594 to 7706. [2022-01-18 11:08:14,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.6426995457495135) internal successors, (20362), 7705 states have internal predecessors, (20362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:14,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20362 transitions. [2022-01-18 11:08:14,807 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20362 transitions. Word has length 109 [2022-01-18 11:08:14,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:14,807 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20362 transitions. [2022-01-18 11:08:14,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:14,807 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20362 transitions. [2022-01-18 11:08:14,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:14,815 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:14,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:14,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2022-01-18 11:08:14,815 INFO L402 AbstractCegarLoop]: === Iteration 346 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:14,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:14,815 INFO L85 PathProgramCache]: Analyzing trace with hash 2065936750, now seen corresponding path program 44 times [2022-01-18 11:08:14,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:14,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138598811] [2022-01-18 11:08:14,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:14,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:14,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:14,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:14,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138598811] [2022-01-18 11:08:14,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138598811] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:14,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:14,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:14,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691065221] [2022-01-18 11:08:14,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:14,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:14,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:14,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:14,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:14,948 INFO L87 Difference]: Start difference. First operand 7706 states and 20362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:15,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:15,555 INFO L93 Difference]: Finished difference Result 9116 states and 24036 transitions. [2022-01-18 11:08:15,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:08:15,555 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:15,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:15,566 INFO L225 Difference]: With dead ends: 9116 [2022-01-18 11:08:15,566 INFO L226 Difference]: Without dead ends: 8594 [2022-01-18 11:08:15,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=515, Invalid=1465, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:08:15,567 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 286 mSDsluCounter, 2445 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:15,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 2642 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:15,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8594 states. [2022-01-18 11:08:15,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8594 to 7710. [2022-01-18 11:08:15,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642236347126735) internal successors, (20369), 7709 states have internal predecessors, (20369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:15,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20369 transitions. [2022-01-18 11:08:15,666 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20369 transitions. Word has length 109 [2022-01-18 11:08:15,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:15,666 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20369 transitions. [2022-01-18 11:08:15,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:15,666 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20369 transitions. [2022-01-18 11:08:15,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:15,675 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:15,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:15,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2022-01-18 11:08:15,675 INFO L402 AbstractCegarLoop]: === Iteration 347 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:15,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:15,676 INFO L85 PathProgramCache]: Analyzing trace with hash 508021400, now seen corresponding path program 45 times [2022-01-18 11:08:15,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:15,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100163812] [2022-01-18 11:08:15,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:15,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:15,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:15,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:15,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100163812] [2022-01-18 11:08:15,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100163812] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:15,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:15,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:15,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170382052] [2022-01-18 11:08:15,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:15,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:15,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:15,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:15,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:15,816 INFO L87 Difference]: Start difference. First operand 7710 states and 20369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:16,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:16,324 INFO L93 Difference]: Finished difference Result 8968 states and 23650 transitions. [2022-01-18 11:08:16,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:16,325 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:16,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:16,336 INFO L225 Difference]: With dead ends: 8968 [2022-01-18 11:08:16,336 INFO L226 Difference]: Without dead ends: 8489 [2022-01-18 11:08:16,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=374, Invalid=1108, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:08:16,336 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 235 mSDsluCounter, 2195 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:16,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 2396 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:16,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8489 states. [2022-01-18 11:08:16,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8489 to 7714. [2022-01-18 11:08:16,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6417736289381564) internal successors, (20376), 7713 states have internal predecessors, (20376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:16,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20376 transitions. [2022-01-18 11:08:16,437 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20376 transitions. Word has length 109 [2022-01-18 11:08:16,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:16,438 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20376 transitions. [2022-01-18 11:08:16,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:16,438 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20376 transitions. [2022-01-18 11:08:16,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:16,446 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:16,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:16,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2022-01-18 11:08:16,446 INFO L402 AbstractCegarLoop]: === Iteration 348 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:16,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:16,446 INFO L85 PathProgramCache]: Analyzing trace with hash 2135544518, now seen corresponding path program 46 times [2022-01-18 11:08:16,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:16,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589095658] [2022-01-18 11:08:16,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:16,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:16,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:16,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:16,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589095658] [2022-01-18 11:08:16,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589095658] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:16,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:16,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:16,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286014108] [2022-01-18 11:08:16,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:16,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:16,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:16,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:16,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:16,557 INFO L87 Difference]: Start difference. First operand 7714 states and 20376 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:17,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:17,009 INFO L93 Difference]: Finished difference Result 8886 states and 23429 transitions. [2022-01-18 11:08:17,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:08:17,010 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:17,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:17,020 INFO L225 Difference]: With dead ends: 8886 [2022-01-18 11:08:17,020 INFO L226 Difference]: Without dead ends: 8394 [2022-01-18 11:08:17,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:08:17,020 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 216 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2763 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:17,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2763 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:17,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8394 states. [2022-01-18 11:08:17,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8394 to 7698. [2022-01-18 11:08:17,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:17,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-01-18 11:08:17,113 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-01-18 11:08:17,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:17,113 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-01-18 11:08:17,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:17,113 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-01-18 11:08:17,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:17,120 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:17,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:17,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2022-01-18 11:08:17,121 INFO L402 AbstractCegarLoop]: === Iteration 349 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:17,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:17,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1438805144, now seen corresponding path program 47 times [2022-01-18 11:08:17,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:17,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246052896] [2022-01-18 11:08:17,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:17,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:17,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:17,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:17,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:17,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246052896] [2022-01-18 11:08:17,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246052896] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:17,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:17,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:17,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928434984] [2022-01-18 11:08:17,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:17,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:17,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:17,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:17,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:17,299 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:17,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:17,770 INFO L93 Difference]: Finished difference Result 8924 states and 23537 transitions. [2022-01-18 11:08:17,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:08:17,770 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:17,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:17,780 INFO L225 Difference]: With dead ends: 8924 [2022-01-18 11:08:17,780 INFO L226 Difference]: Without dead ends: 8445 [2022-01-18 11:08:17,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:08:17,780 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 239 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 2326 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:17,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 2326 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:17,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8445 states. [2022-01-18 11:08:17,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8445 to 7714. [2022-01-18 11:08:17,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.642810838843511) internal successors, (20384), 7713 states have internal predecessors, (20384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:17,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20384 transitions. [2022-01-18 11:08:17,871 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20384 transitions. Word has length 109 [2022-01-18 11:08:17,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:17,871 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20384 transitions. [2022-01-18 11:08:17,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:17,871 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20384 transitions. [2022-01-18 11:08:17,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:17,878 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:17,879 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:17,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2022-01-18 11:08:17,879 INFO L402 AbstractCegarLoop]: === Iteration 350 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:17,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:17,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1228639034, now seen corresponding path program 48 times [2022-01-18 11:08:17,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:17,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803868286] [2022-01-18 11:08:17,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:17,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:17,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:17,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:17,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803868286] [2022-01-18 11:08:17,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803868286] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:17,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:17,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:17,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406338184] [2022-01-18 11:08:17,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:17,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:17,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:17,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:17,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:17,987 INFO L87 Difference]: Start difference. First operand 7714 states and 20384 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:18,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:18,408 INFO L93 Difference]: Finished difference Result 8882 states and 23426 transitions. [2022-01-18 11:08:18,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:18,408 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:18,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:18,418 INFO L225 Difference]: With dead ends: 8882 [2022-01-18 11:08:18,418 INFO L226 Difference]: Without dead ends: 8402 [2022-01-18 11:08:18,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=348, Invalid=1134, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:08:18,419 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 231 mSDsluCounter, 2384 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:18,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 2584 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:18,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8402 states. [2022-01-18 11:08:18,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8402 to 7710. [2022-01-18 11:08:18,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642755221170061) internal successors, (20373), 7709 states have internal predecessors, (20373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:18,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20373 transitions. [2022-01-18 11:08:18,509 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20373 transitions. Word has length 109 [2022-01-18 11:08:18,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:18,509 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20373 transitions. [2022-01-18 11:08:18,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:18,509 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20373 transitions. [2022-01-18 11:08:18,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:18,517 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:18,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:18,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2022-01-18 11:08:18,517 INFO L402 AbstractCegarLoop]: === Iteration 351 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:18,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:18,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1945270922, now seen corresponding path program 49 times [2022-01-18 11:08:18,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:18,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315585005] [2022-01-18 11:08:18,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:18,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:18,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:18,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:18,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315585005] [2022-01-18 11:08:18,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315585005] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:18,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:18,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:18,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334179856] [2022-01-18 11:08:18,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:18,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:18,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:18,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:18,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:18,624 INFO L87 Difference]: Start difference. First operand 7710 states and 20373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:19,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:19,216 INFO L93 Difference]: Finished difference Result 8990 states and 23703 transitions. [2022-01-18 11:08:19,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:08:19,216 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:19,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:19,230 INFO L225 Difference]: With dead ends: 8990 [2022-01-18 11:08:19,231 INFO L226 Difference]: Without dead ends: 8470 [2022-01-18 11:08:19,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=461, Invalid=1519, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:08:19,231 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 304 mSDsluCounter, 2622 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 2823 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:19,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 2823 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:19,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2022-01-18 11:08:19,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 7706. [2022-01-18 11:08:19,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.6426995457495135) internal successors, (20362), 7705 states have internal predecessors, (20362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:19,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20362 transitions. [2022-01-18 11:08:19,347 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20362 transitions. Word has length 109 [2022-01-18 11:08:19,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:19,348 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20362 transitions. [2022-01-18 11:08:19,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:19,348 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20362 transitions. [2022-01-18 11:08:19,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:19,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:19,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:19,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2022-01-18 11:08:19,356 INFO L402 AbstractCegarLoop]: === Iteration 352 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:19,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:19,357 INFO L85 PathProgramCache]: Analyzing trace with hash 2017900646, now seen corresponding path program 50 times [2022-01-18 11:08:19,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:19,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652505410] [2022-01-18 11:08:19,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:19,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:19,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:19,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:19,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652505410] [2022-01-18 11:08:19,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652505410] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:19,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:19,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:19,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073262425] [2022-01-18 11:08:19,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:19,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:19,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:19,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:19,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:19,462 INFO L87 Difference]: Start difference. First operand 7706 states and 20362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:20,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:20,106 INFO L93 Difference]: Finished difference Result 9088 states and 23959 transitions. [2022-01-18 11:08:20,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:08:20,106 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:20,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:20,116 INFO L225 Difference]: With dead ends: 9088 [2022-01-18 11:08:20,116 INFO L226 Difference]: Without dead ends: 8566 [2022-01-18 11:08:20,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=531, Invalid=1631, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:08:20,117 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 330 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 3007 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:20,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 3007 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:20,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8566 states. [2022-01-18 11:08:20,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8566 to 7710. [2022-01-18 11:08:20,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642236347126735) internal successors, (20369), 7709 states have internal predecessors, (20369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:20,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20369 transitions. [2022-01-18 11:08:20,211 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20369 transitions. Word has length 109 [2022-01-18 11:08:20,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:20,211 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20369 transitions. [2022-01-18 11:08:20,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:20,211 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20369 transitions. [2022-01-18 11:08:20,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:20,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:20,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:20,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2022-01-18 11:08:20,219 INFO L402 AbstractCegarLoop]: === Iteration 353 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:20,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:20,219 INFO L85 PathProgramCache]: Analyzing trace with hash 459985296, now seen corresponding path program 51 times [2022-01-18 11:08:20,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:20,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370573212] [2022-01-18 11:08:20,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:20,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:20,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:20,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:20,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370573212] [2022-01-18 11:08:20,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370573212] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:20,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:20,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:20,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719834999] [2022-01-18 11:08:20,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:20,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:20,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:20,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:20,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:20,356 INFO L87 Difference]: Start difference. First operand 7710 states and 20369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:20,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:20,899 INFO L93 Difference]: Finished difference Result 8924 states and 23529 transitions. [2022-01-18 11:08:20,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:20,900 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:20,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:20,910 INFO L225 Difference]: With dead ends: 8924 [2022-01-18 11:08:20,910 INFO L226 Difference]: Without dead ends: 8445 [2022-01-18 11:08:20,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=370, Invalid=1112, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:08:20,911 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 268 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:20,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 1982 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:20,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8445 states. [2022-01-18 11:08:21,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8445 to 7714. [2022-01-18 11:08:21,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6417736289381564) internal successors, (20376), 7713 states have internal predecessors, (20376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:21,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20376 transitions. [2022-01-18 11:08:21,048 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20376 transitions. Word has length 109 [2022-01-18 11:08:21,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:21,049 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20376 transitions. [2022-01-18 11:08:21,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:21,049 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20376 transitions. [2022-01-18 11:08:21,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:21,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:21,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:21,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2022-01-18 11:08:21,061 INFO L402 AbstractCegarLoop]: === Iteration 354 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:21,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:21,062 INFO L85 PathProgramCache]: Analyzing trace with hash 2087508414, now seen corresponding path program 52 times [2022-01-18 11:08:21,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:21,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233995897] [2022-01-18 11:08:21,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:21,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:21,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:21,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:21,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233995897] [2022-01-18 11:08:21,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233995897] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:21,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:21,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:21,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632661756] [2022-01-18 11:08:21,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:21,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:21,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:21,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:21,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:21,202 INFO L87 Difference]: Start difference. First operand 7714 states and 20376 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:21,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:21,695 INFO L93 Difference]: Finished difference Result 8858 states and 23352 transitions. [2022-01-18 11:08:21,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:08:21,696 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:21,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:21,706 INFO L225 Difference]: With dead ends: 8858 [2022-01-18 11:08:21,706 INFO L226 Difference]: Without dead ends: 8370 [2022-01-18 11:08:21,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:08:21,707 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 242 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:21,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 2544 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 11:08:21,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8370 states. [2022-01-18 11:08:21,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8370 to 7702. [2022-01-18 11:08:21,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7702 states, 7701 states have (on average 2.642643812491884) internal successors, (20351), 7701 states have internal predecessors, (20351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:21,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20351 transitions. [2022-01-18 11:08:21,804 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20351 transitions. Word has length 109 [2022-01-18 11:08:21,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:21,804 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20351 transitions. [2022-01-18 11:08:21,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:21,804 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20351 transitions. [2022-01-18 11:08:21,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:21,812 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:21,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:21,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2022-01-18 11:08:21,812 INFO L402 AbstractCegarLoop]: === Iteration 355 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:21,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:21,812 INFO L85 PathProgramCache]: Analyzing trace with hash 805164314, now seen corresponding path program 53 times [2022-01-18 11:08:21,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:21,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727424347] [2022-01-18 11:08:21,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:21,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:21,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:21,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:21,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:21,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727424347] [2022-01-18 11:08:21,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727424347] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:21,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:21,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:21,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840664385] [2022-01-18 11:08:21,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:21,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:21,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:21,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:21,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:21,922 INFO L87 Difference]: Start difference. First operand 7702 states and 20351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:22,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:22,586 INFO L93 Difference]: Finished difference Result 9025 states and 23767 transitions. [2022-01-18 11:08:22,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:08:22,586 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:22,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:22,596 INFO L225 Difference]: With dead ends: 9025 [2022-01-18 11:08:22,596 INFO L226 Difference]: Without dead ends: 8460 [2022-01-18 11:08:22,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=681, Invalid=1869, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:08:22,596 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 389 mSDsluCounter, 2405 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 2598 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:22,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 2598 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:22,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8460 states. [2022-01-18 11:08:22,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8460 to 7706. [2022-01-18 11:08:22,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.6421804023361455) internal successors, (20358), 7705 states have internal predecessors, (20358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:22,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20358 transitions. [2022-01-18 11:08:22,686 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20358 transitions. Word has length 109 [2022-01-18 11:08:22,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:22,686 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20358 transitions. [2022-01-18 11:08:22,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:22,687 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20358 transitions. [2022-01-18 11:08:22,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:22,694 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:22,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:22,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2022-01-18 11:08:22,694 INFO L402 AbstractCegarLoop]: === Iteration 356 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:22,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:22,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1669595376, now seen corresponding path program 54 times [2022-01-18 11:08:22,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:22,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346000423] [2022-01-18 11:08:22,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:22,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:22,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:22,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:22,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346000423] [2022-01-18 11:08:22,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346000423] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:22,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:22,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:22,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249823107] [2022-01-18 11:08:22,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:22,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:22,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:22,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:22,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:22,814 INFO L87 Difference]: Start difference. First operand 7706 states and 20358 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:23,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:23,402 INFO L93 Difference]: Finished difference Result 8920 states and 23493 transitions. [2022-01-18 11:08:23,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:08:23,403 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:23,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:23,413 INFO L225 Difference]: With dead ends: 8920 [2022-01-18 11:08:23,413 INFO L226 Difference]: Without dead ends: 8398 [2022-01-18 11:08:23,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:08:23,413 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 344 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 2327 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:23,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 2327 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:23,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8398 states. [2022-01-18 11:08:23,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8398 to 7710. [2022-01-18 11:08:23,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.641717473083409) internal successors, (20365), 7709 states have internal predecessors, (20365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:23,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20365 transitions. [2022-01-18 11:08:23,507 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20365 transitions. Word has length 109 [2022-01-18 11:08:23,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:23,507 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20365 transitions. [2022-01-18 11:08:23,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:23,507 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20365 transitions. [2022-01-18 11:08:23,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:23,515 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:23,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:23,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2022-01-18 11:08:23,515 INFO L402 AbstractCegarLoop]: === Iteration 357 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:23,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:23,516 INFO L85 PathProgramCache]: Analyzing trace with hash 111680026, now seen corresponding path program 55 times [2022-01-18 11:08:23,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:23,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171273604] [2022-01-18 11:08:23,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:23,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:23,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:23,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:23,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171273604] [2022-01-18 11:08:23,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171273604] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:23,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:23,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:23,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317069384] [2022-01-18 11:08:23,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:23,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:23,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:23,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:23,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:23,625 INFO L87 Difference]: Start difference. First operand 7710 states and 20365 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:24,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:24,071 INFO L93 Difference]: Finished difference Result 8796 states and 23173 transitions. [2022-01-18 11:08:24,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:24,071 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:24,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:24,081 INFO L225 Difference]: With dead ends: 8796 [2022-01-18 11:08:24,081 INFO L226 Difference]: Without dead ends: 8317 [2022-01-18 11:08:24,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=366, Invalid=1116, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:08:24,082 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 279 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 2227 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:24,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 2227 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:24,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8317 states. [2022-01-18 11:08:24,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8317 to 7714. [2022-01-18 11:08:24,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.641255023985479) internal successors, (20372), 7713 states have internal predecessors, (20372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:24,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20372 transitions. [2022-01-18 11:08:24,175 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20372 transitions. Word has length 109 [2022-01-18 11:08:24,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:24,175 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20372 transitions. [2022-01-18 11:08:24,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:24,176 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20372 transitions. [2022-01-18 11:08:24,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:24,183 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:24,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:24,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2022-01-18 11:08:24,184 INFO L402 AbstractCegarLoop]: === Iteration 358 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:24,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:24,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1739203144, now seen corresponding path program 56 times [2022-01-18 11:08:24,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:24,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937637048] [2022-01-18 11:08:24,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:24,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:24,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:24,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:24,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937637048] [2022-01-18 11:08:24,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937637048] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:24,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:24,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:24,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014779032] [2022-01-18 11:08:24,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:24,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:24,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:24,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:24,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:24,296 INFO L87 Difference]: Start difference. First operand 7714 states and 20372 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:24,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:24,707 INFO L93 Difference]: Finished difference Result 8662 states and 22809 transitions. [2022-01-18 11:08:24,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:08:24,708 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:24,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:24,718 INFO L225 Difference]: With dead ends: 8662 [2022-01-18 11:08:24,718 INFO L226 Difference]: Without dead ends: 8142 [2022-01-18 11:08:24,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=950, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:08:24,719 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 222 mSDsluCounter, 2511 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:24,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 2696 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:24,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8142 states. [2022-01-18 11:08:24,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8142 to 7670. [2022-01-18 11:08:24,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7670 states, 7669 states have (on average 2.643760594601643) internal successors, (20275), 7669 states have internal predecessors, (20275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:24,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7670 states to 7670 states and 20275 transitions. [2022-01-18 11:08:24,812 INFO L78 Accepts]: Start accepts. Automaton has 7670 states and 20275 transitions. Word has length 109 [2022-01-18 11:08:24,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:24,812 INFO L470 AbstractCegarLoop]: Abstraction has 7670 states and 20275 transitions. [2022-01-18 11:08:24,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:24,812 INFO L276 IsEmpty]: Start isEmpty. Operand 7670 states and 20275 transitions. [2022-01-18 11:08:24,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:24,819 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:24,820 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:24,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2022-01-18 11:08:24,820 INFO L402 AbstractCegarLoop]: === Iteration 359 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:24,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:24,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1409171550, now seen corresponding path program 57 times [2022-01-18 11:08:24,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:24,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637436801] [2022-01-18 11:08:24,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:24,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:24,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:24,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:24,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637436801] [2022-01-18 11:08:24,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637436801] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:24,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:24,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:24,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46299571] [2022-01-18 11:08:24,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:24,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:24,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:24,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:24,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:24,936 INFO L87 Difference]: Start difference. First operand 7670 states and 20275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:25,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:25,371 INFO L93 Difference]: Finished difference Result 9236 states and 24403 transitions. [2022-01-18 11:08:25,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:08:25,372 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:25,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:25,382 INFO L225 Difference]: With dead ends: 9236 [2022-01-18 11:08:25,382 INFO L226 Difference]: Without dead ends: 8757 [2022-01-18 11:08:25,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=945, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:08:25,383 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 214 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2715 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:25,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2715 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:25,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8757 states. [2022-01-18 11:08:25,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8757 to 7698. [2022-01-18 11:08:25,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643627387293751) internal successors, (20348), 7697 states have internal predecessors, (20348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:25,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20348 transitions. [2022-01-18 11:08:25,475 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20348 transitions. Word has length 109 [2022-01-18 11:08:25,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:25,475 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20348 transitions. [2022-01-18 11:08:25,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:25,475 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20348 transitions. [2022-01-18 11:08:25,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:25,483 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:25,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:25,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2022-01-18 11:08:25,483 INFO L402 AbstractCegarLoop]: === Iteration 360 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:25,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:25,483 INFO L85 PathProgramCache]: Analyzing trace with hash 218351568, now seen corresponding path program 58 times [2022-01-18 11:08:25,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:25,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906109173] [2022-01-18 11:08:25,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:25,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:25,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:25,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:25,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906109173] [2022-01-18 11:08:25,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906109173] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:25,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:25,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:25,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547746065] [2022-01-18 11:08:25,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:25,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:25,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:25,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:25,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:25,597 INFO L87 Difference]: Start difference. First operand 7698 states and 20348 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:26,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:26,029 INFO L93 Difference]: Finished difference Result 9202 states and 24314 transitions. [2022-01-18 11:08:26,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:26,030 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:26,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:26,040 INFO L225 Difference]: With dead ends: 9202 [2022-01-18 11:08:26,040 INFO L226 Difference]: Without dead ends: 8722 [2022-01-18 11:08:26,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=1094, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:08:26,040 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 216 mSDsluCounter, 2511 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2713 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:26,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2713 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:26,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8722 states. [2022-01-18 11:08:26,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8722 to 7694. [2022-01-18 11:08:26,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6435720785129337) internal successors, (20337), 7693 states have internal predecessors, (20337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:26,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20337 transitions. [2022-01-18 11:08:26,162 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20337 transitions. Word has length 109 [2022-01-18 11:08:26,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:26,162 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20337 transitions. [2022-01-18 11:08:26,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:26,162 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20337 transitions. [2022-01-18 11:08:26,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:26,170 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:26,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:26,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2022-01-18 11:08:26,170 INFO L402 AbstractCegarLoop]: === Iteration 361 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:26,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:26,171 INFO L85 PathProgramCache]: Analyzing trace with hash -902705772, now seen corresponding path program 59 times [2022-01-18 11:08:26,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:26,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724232964] [2022-01-18 11:08:26,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:26,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:26,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:26,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:26,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724232964] [2022-01-18 11:08:26,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724232964] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:26,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:26,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:26,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041224461] [2022-01-18 11:08:26,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:26,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:26,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:26,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:26,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:26,287 INFO L87 Difference]: Start difference. First operand 7694 states and 20337 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:26,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:26,823 INFO L93 Difference]: Finished difference Result 9238 states and 24409 transitions. [2022-01-18 11:08:26,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:08:26,824 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:26,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:26,834 INFO L225 Difference]: With dead ends: 9238 [2022-01-18 11:08:26,834 INFO L226 Difference]: Without dead ends: 8718 [2022-01-18 11:08:26,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1616, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:08:26,835 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 287 mSDsluCounter, 2591 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:26,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 2801 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:26,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8718 states. [2022-01-18 11:08:26,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8718 to 7690. [2022-01-18 11:08:26,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.64351671218624) internal successors, (20326), 7689 states have internal predecessors, (20326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:26,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20326 transitions. [2022-01-18 11:08:26,933 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20326 transitions. Word has length 109 [2022-01-18 11:08:26,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:26,933 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20326 transitions. [2022-01-18 11:08:26,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:26,933 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20326 transitions. [2022-01-18 11:08:26,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:26,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:26,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:26,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2022-01-18 11:08:26,941 INFO L402 AbstractCegarLoop]: === Iteration 362 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:26,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:26,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1427841308, now seen corresponding path program 60 times [2022-01-18 11:08:26,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:26,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317492179] [2022-01-18 11:08:26,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:26,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:27,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:27,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:27,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317492179] [2022-01-18 11:08:27,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317492179] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:27,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:27,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:27,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167103060] [2022-01-18 11:08:27,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:27,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:27,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:27,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:27,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:27,053 INFO L87 Difference]: Start difference. First operand 7690 states and 20326 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:27,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:27,681 INFO L93 Difference]: Finished difference Result 9466 states and 25008 transitions. [2022-01-18 11:08:27,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:08:27,682 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:27,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:27,692 INFO L225 Difference]: With dead ends: 9466 [2022-01-18 11:08:27,692 INFO L226 Difference]: Without dead ends: 8906 [2022-01-18 11:08:27,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=625, Invalid=2131, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:08:27,693 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 342 mSDsluCounter, 2814 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:27,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 3027 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:27,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8906 states. [2022-01-18 11:08:27,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8906 to 7686. [2022-01-18 11:08:27,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6434612882238127) internal successors, (20315), 7685 states have internal predecessors, (20315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:27,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20315 transitions. [2022-01-18 11:08:27,785 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20315 transitions. Word has length 109 [2022-01-18 11:08:27,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:27,785 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20315 transitions. [2022-01-18 11:08:27,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:27,785 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20315 transitions. [2022-01-18 11:08:27,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:27,793 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:27,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:27,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2022-01-18 11:08:27,793 INFO L402 AbstractCegarLoop]: === Iteration 363 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:27,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:27,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1618154712, now seen corresponding path program 61 times [2022-01-18 11:08:27,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:27,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019259401] [2022-01-18 11:08:27,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:27,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:27,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:27,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:27,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019259401] [2022-01-18 11:08:27,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019259401] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:27,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:27,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:27,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133328211] [2022-01-18 11:08:27,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:27,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:27,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:27,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:27,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:27,911 INFO L87 Difference]: Start difference. First operand 7686 states and 20315 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:28,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:28,361 INFO L93 Difference]: Finished difference Result 9212 states and 24333 transitions. [2022-01-18 11:08:28,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:08:28,361 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:28,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:28,371 INFO L225 Difference]: With dead ends: 9212 [2022-01-18 11:08:28,371 INFO L226 Difference]: Without dead ends: 8733 [2022-01-18 11:08:28,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=331, Invalid=1001, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:08:28,371 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 217 mSDsluCounter, 2526 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:28,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 2718 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:28,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8733 states. [2022-01-18 11:08:28,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8733 to 7698. [2022-01-18 11:08:28,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:28,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-01-18 11:08:28,463 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-01-18 11:08:28,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:28,463 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-01-18 11:08:28,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:28,463 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-01-18 11:08:28,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:28,470 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:28,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:28,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2022-01-18 11:08:28,471 INFO L402 AbstractCegarLoop]: === Iteration 364 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:28,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:28,471 INFO L85 PathProgramCache]: Analyzing trace with hash 9368406, now seen corresponding path program 62 times [2022-01-18 11:08:28,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:28,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855140534] [2022-01-18 11:08:28,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:28,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:28,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:28,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:28,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:28,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855140534] [2022-01-18 11:08:28,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855140534] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:28,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:28,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:28,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488211648] [2022-01-18 11:08:28,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:28,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:28,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:28,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:28,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:28,583 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:29,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:29,030 INFO L93 Difference]: Finished difference Result 9170 states and 24222 transitions. [2022-01-18 11:08:29,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:29,031 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:29,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:29,042 INFO L225 Difference]: With dead ends: 9170 [2022-01-18 11:08:29,042 INFO L226 Difference]: Without dead ends: 8690 [2022-01-18 11:08:29,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:08:29,042 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 200 mSDsluCounter, 2666 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:29,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2867 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:29,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8690 states. [2022-01-18 11:08:29,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8690 to 7694. [2022-01-18 11:08:29,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.643052125308722) internal successors, (20333), 7693 states have internal predecessors, (20333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:29,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-01-18 11:08:29,139 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-01-18 11:08:29,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:29,139 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-01-18 11:08:29,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:29,139 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-01-18 11:08:29,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:29,148 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:29,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:29,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2022-01-18 11:08:29,148 INFO L402 AbstractCegarLoop]: === Iteration 365 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:29,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:29,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1111688934, now seen corresponding path program 63 times [2022-01-18 11:08:29,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:29,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415839758] [2022-01-18 11:08:29,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:29,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:29,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:29,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:29,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415839758] [2022-01-18 11:08:29,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415839758] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:29,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:29,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:29,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882906746] [2022-01-18 11:08:29,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:29,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:29,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:29,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:29,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:29,266 INFO L87 Difference]: Start difference. First operand 7694 states and 20333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:29,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:29,795 INFO L93 Difference]: Finished difference Result 9338 states and 24664 transitions. [2022-01-18 11:08:29,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:08:29,796 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:29,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:29,807 INFO L225 Difference]: With dead ends: 9338 [2022-01-18 11:08:29,807 INFO L226 Difference]: Without dead ends: 8818 [2022-01-18 11:08:29,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=442, Invalid=1538, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:08:29,807 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 298 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 2778 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:29,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 2778 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:29,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8818 states. [2022-01-18 11:08:29,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8818 to 7690. [2022-01-18 11:08:29,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6429964884900508) internal successors, (20322), 7689 states have internal predecessors, (20322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:29,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-01-18 11:08:29,907 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-01-18 11:08:29,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:29,907 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-01-18 11:08:29,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:29,907 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-01-18 11:08:29,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:29,916 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:29,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:29,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2022-01-18 11:08:29,916 INFO L402 AbstractCegarLoop]: === Iteration 366 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:29,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:29,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1039059210, now seen corresponding path program 64 times [2022-01-18 11:08:29,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:29,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529934503] [2022-01-18 11:08:29,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:29,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:30,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:30,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:30,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529934503] [2022-01-18 11:08:30,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529934503] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:30,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:30,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:30,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214821313] [2022-01-18 11:08:30,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:30,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:30,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:30,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:30,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:30,032 INFO L87 Difference]: Start difference. First operand 7690 states and 20322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:30,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:30,541 INFO L93 Difference]: Finished difference Result 9256 states and 24425 transitions. [2022-01-18 11:08:30,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:08:30,542 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:30,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:30,552 INFO L225 Difference]: With dead ends: 9256 [2022-01-18 11:08:30,552 INFO L226 Difference]: Without dead ends: 8734 [2022-01-18 11:08:30,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=469, Invalid=1423, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:08:30,553 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 276 mSDsluCounter, 2608 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 2798 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:30,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 2798 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:30,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8734 states. [2022-01-18 11:08:30,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8734 to 7694. [2022-01-18 11:08:30,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:30,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-01-18 11:08:30,646 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-01-18 11:08:30,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:30,646 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-01-18 11:08:30,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:30,646 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-01-18 11:08:30,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:30,653 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:30,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:30,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2022-01-18 11:08:30,654 INFO L402 AbstractCegarLoop]: === Iteration 367 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:30,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:30,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1697992736, now seen corresponding path program 65 times [2022-01-18 11:08:30,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:30,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090316863] [2022-01-18 11:08:30,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:30,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:30,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:30,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:30,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090316863] [2022-01-18 11:08:30,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090316863] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:30,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:30,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:30,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109106945] [2022-01-18 11:08:30,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:30,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:30,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:30,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:30,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:30,782 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:31,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:31,231 INFO L93 Difference]: Finished difference Result 9156 states and 24171 transitions. [2022-01-18 11:08:31,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:31,232 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:31,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:31,242 INFO L225 Difference]: With dead ends: 9156 [2022-01-18 11:08:31,243 INFO L226 Difference]: Without dead ends: 8677 [2022-01-18 11:08:31,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=349, Invalid=1057, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:08:31,243 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 203 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 2455 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:31,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 2455 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:31,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8677 states. [2022-01-18 11:08:31,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8677 to 7698. [2022-01-18 11:08:31,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6420683383136288) internal successors, (20336), 7697 states have internal predecessors, (20336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:31,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20336 transitions. [2022-01-18 11:08:31,336 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20336 transitions. Word has length 109 [2022-01-18 11:08:31,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:31,336 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20336 transitions. [2022-01-18 11:08:31,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:31,337 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20336 transitions. [2022-01-18 11:08:31,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:31,344 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:31,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:31,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2022-01-18 11:08:31,344 INFO L402 AbstractCegarLoop]: === Iteration 368 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:31,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:31,345 INFO L85 PathProgramCache]: Analyzing trace with hash -969451442, now seen corresponding path program 66 times [2022-01-18 11:08:31,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:31,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626798565] [2022-01-18 11:08:31,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:31,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:31,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:31,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:31,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626798565] [2022-01-18 11:08:31,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626798565] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:31,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:31,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:31,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935270171] [2022-01-18 11:08:31,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:31,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:31,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:31,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:31,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:31,456 INFO L87 Difference]: Start difference. First operand 7698 states and 20336 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:31,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:31,897 INFO L93 Difference]: Finished difference Result 9106 states and 24038 transitions. [2022-01-18 11:08:31,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:08:31,897 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:31,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:31,908 INFO L225 Difference]: With dead ends: 9106 [2022-01-18 11:08:31,908 INFO L226 Difference]: Without dead ends: 8614 [2022-01-18 11:08:31,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:08:31,909 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 191 mSDsluCounter, 2676 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 2878 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:31,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 2878 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:31,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8614 states. [2022-01-18 11:08:31,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8614 to 7682. [2022-01-18 11:08:31,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7681 states have (on average 2.643405806535607) internal successors, (20304), 7681 states have internal predecessors, (20304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:32,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20304 transitions. [2022-01-18 11:08:32,010 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20304 transitions. Word has length 109 [2022-01-18 11:08:32,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:32,010 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20304 transitions. [2022-01-18 11:08:32,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:32,011 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20304 transitions. [2022-01-18 11:08:32,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:32,018 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:32,018 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:32,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2022-01-18 11:08:32,018 INFO L402 AbstractCegarLoop]: === Iteration 369 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:32,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:32,019 INFO L85 PathProgramCache]: Analyzing trace with hash 2065231170, now seen corresponding path program 67 times [2022-01-18 11:08:32,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:32,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136069001] [2022-01-18 11:08:32,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:32,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:32,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:32,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:32,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136069001] [2022-01-18 11:08:32,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136069001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:32,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:32,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:32,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602438747] [2022-01-18 11:08:32,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:32,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:32,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:32,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:32,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:32,140 INFO L87 Difference]: Start difference. First operand 7682 states and 20304 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:32,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:32,571 INFO L93 Difference]: Finished difference Result 9048 states and 23882 transitions. [2022-01-18 11:08:32,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:08:32,572 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:32,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:32,583 INFO L225 Difference]: With dead ends: 9048 [2022-01-18 11:08:32,583 INFO L226 Difference]: Without dead ends: 8569 [2022-01-18 11:08:32,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=301, Invalid=889, Unknown=0, NotChecked=0, Total=1190 [2022-01-18 11:08:32,583 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 209 mSDsluCounter, 2307 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2500 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:32,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 2500 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:32,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8569 states. [2022-01-18 11:08:32,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8569 to 7698. [2022-01-18 11:08:32,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:32,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-01-18 11:08:32,684 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-01-18 11:08:32,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:32,684 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-01-18 11:08:32,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:32,684 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-01-18 11:08:32,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:32,692 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:32,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:32,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2022-01-18 11:08:32,693 INFO L402 AbstractCegarLoop]: === Iteration 370 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:32,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:32,693 INFO L85 PathProgramCache]: Analyzing trace with hash -602213008, now seen corresponding path program 68 times [2022-01-18 11:08:32,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:32,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430001323] [2022-01-18 11:08:32,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:32,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:32,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:32,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:32,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:32,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430001323] [2022-01-18 11:08:32,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430001323] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:32,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:32,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:32,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882469699] [2022-01-18 11:08:32,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:32,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:32,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:32,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:32,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:32,807 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:33,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:33,230 INFO L93 Difference]: Finished difference Result 9018 states and 23804 transitions. [2022-01-18 11:08:33,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:33,231 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:33,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:33,240 INFO L225 Difference]: With dead ends: 9018 [2022-01-18 11:08:33,241 INFO L226 Difference]: Without dead ends: 8538 [2022-01-18 11:08:33,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:08:33,241 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 213 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2726 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:33,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2726 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:33,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8538 states. [2022-01-18 11:08:33,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8538 to 7694. [2022-01-18 11:08:33,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.643052125308722) internal successors, (20333), 7693 states have internal predecessors, (20333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:33,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-01-18 11:08:33,333 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-01-18 11:08:33,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:33,333 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-01-18 11:08:33,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:33,333 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-01-18 11:08:33,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:33,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:33,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:33,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2022-01-18 11:08:33,341 INFO L402 AbstractCegarLoop]: === Iteration 371 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:33,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:33,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1723270348, now seen corresponding path program 69 times [2022-01-18 11:08:33,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:33,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191150620] [2022-01-18 11:08:33,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:33,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:33,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:33,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:33,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191150620] [2022-01-18 11:08:33,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191150620] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:33,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:33,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:33,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536086161] [2022-01-18 11:08:33,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:33,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:33,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:33,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:33,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:33,456 INFO L87 Difference]: Start difference. First operand 7694 states and 20333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:33,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:33,991 INFO L93 Difference]: Finished difference Result 9054 states and 23899 transitions. [2022-01-18 11:08:33,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:08:33,992 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:33,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:34,004 INFO L225 Difference]: With dead ends: 9054 [2022-01-18 11:08:34,004 INFO L226 Difference]: Without dead ends: 8534 [2022-01-18 11:08:34,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=444, Invalid=1626, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:08:34,004 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 263 mSDsluCounter, 2772 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:34,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 2980 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:34,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8534 states. [2022-01-18 11:08:34,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8534 to 7690. [2022-01-18 11:08:34,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6429964884900508) internal successors, (20322), 7689 states have internal predecessors, (20322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:34,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-01-18 11:08:34,101 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-01-18 11:08:34,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:34,102 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-01-18 11:08:34,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:34,102 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-01-18 11:08:34,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:34,109 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:34,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:34,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2022-01-18 11:08:34,109 INFO L402 AbstractCegarLoop]: === Iteration 372 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:34,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:34,110 INFO L85 PathProgramCache]: Analyzing trace with hash 2046561412, now seen corresponding path program 70 times [2022-01-18 11:08:34,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:34,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563353678] [2022-01-18 11:08:34,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:34,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:34,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:34,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:34,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563353678] [2022-01-18 11:08:34,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563353678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:34,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:34,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:34,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467124830] [2022-01-18 11:08:34,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:34,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:34,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:34,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:34,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:34,227 INFO L87 Difference]: Start difference. First operand 7690 states and 20322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:34,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:34,961 INFO L93 Difference]: Finished difference Result 9090 states and 23994 transitions. [2022-01-18 11:08:34,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:08:34,962 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:34,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:34,974 INFO L225 Difference]: With dead ends: 9090 [2022-01-18 11:08:34,974 INFO L226 Difference]: Without dead ends: 8530 [2022-01-18 11:08:34,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=628, Invalid=2128, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:08:34,974 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 333 mSDsluCounter, 2442 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 2664 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:34,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 2664 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:34,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8530 states. [2022-01-18 11:08:35,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8530 to 7686. [2022-01-18 11:08:35,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6429407937540663) internal successors, (20311), 7685 states have internal predecessors, (20311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:35,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20311 transitions. [2022-01-18 11:08:35,090 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20311 transitions. Word has length 109 [2022-01-18 11:08:35,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:35,090 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20311 transitions. [2022-01-18 11:08:35,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:35,090 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20311 transitions. [2022-01-18 11:08:35,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:35,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:35,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:35,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2022-01-18 11:08:35,098 INFO L402 AbstractCegarLoop]: === Iteration 373 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:35,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:35,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1596112618, now seen corresponding path program 71 times [2022-01-18 11:08:35,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:35,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682126906] [2022-01-18 11:08:35,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:35,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:35,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:35,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:35,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682126906] [2022-01-18 11:08:35,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682126906] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:35,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:35,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:35,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763393184] [2022-01-18 11:08:35,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:35,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:35,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:35,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:35,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:35,210 INFO L87 Difference]: Start difference. First operand 7686 states and 20311 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:35,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:35,887 INFO L93 Difference]: Finished difference Result 9258 states and 24416 transitions. [2022-01-18 11:08:35,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 11:08:35,888 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:35,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:35,898 INFO L225 Difference]: With dead ends: 9258 [2022-01-18 11:08:35,898 INFO L226 Difference]: Without dead ends: 8654 [2022-01-18 11:08:35,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 931 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:08:35,899 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 413 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 3042 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:35,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 3042 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:35,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8654 states. [2022-01-18 11:08:35,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8654 to 7678. [2022-01-18 11:08:35,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7678 states, 7677 states have (on average 2.6433502670313924) internal successors, (20293), 7677 states have internal predecessors, (20293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:35,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7678 states to 7678 states and 20293 transitions. [2022-01-18 11:08:35,990 INFO L78 Accepts]: Start accepts. Automaton has 7678 states and 20293 transitions. Word has length 109 [2022-01-18 11:08:35,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:35,990 INFO L470 AbstractCegarLoop]: Abstraction has 7678 states and 20293 transitions. [2022-01-18 11:08:35,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:35,990 INFO L276 IsEmpty]: Start isEmpty. Operand 7678 states and 20293 transitions. [2022-01-18 11:08:35,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:35,998 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:35,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:35,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2022-01-18 11:08:35,998 INFO L402 AbstractCegarLoop]: === Iteration 374 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:35,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:35,998 INFO L85 PathProgramCache]: Analyzing trace with hash 33730372, now seen corresponding path program 72 times [2022-01-18 11:08:35,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:35,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435114216] [2022-01-18 11:08:35,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:35,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:36,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:36,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:36,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435114216] [2022-01-18 11:08:36,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435114216] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:36,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:36,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:36,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927282571] [2022-01-18 11:08:36,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:36,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:36,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:36,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:36,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:36,113 INFO L87 Difference]: Start difference. First operand 7678 states and 20293 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:36,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:36,534 INFO L93 Difference]: Finished difference Result 9208 states and 24322 transitions. [2022-01-18 11:08:36,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:08:36,534 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:36,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:36,544 INFO L225 Difference]: With dead ends: 9208 [2022-01-18 11:08:36,545 INFO L226 Difference]: Without dead ends: 8729 [2022-01-18 11:08:36,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=950, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:08:36,545 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 211 mSDsluCounter, 2465 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:36,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 2659 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:36,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8729 states. [2022-01-18 11:08:36,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8729 to 7698. [2022-01-18 11:08:36,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:36,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-01-18 11:08:36,637 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-01-18 11:08:36,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:36,637 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-01-18 11:08:36,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:36,637 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-01-18 11:08:36,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:36,645 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:36,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:36,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2022-01-18 11:08:36,645 INFO L402 AbstractCegarLoop]: === Iteration 375 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:36,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:36,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1661253490, now seen corresponding path program 73 times [2022-01-18 11:08:36,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:36,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129420162] [2022-01-18 11:08:36,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:36,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:36,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:36,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:36,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129420162] [2022-01-18 11:08:36,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129420162] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:36,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:36,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:36,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947955140] [2022-01-18 11:08:36,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:36,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:36,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:36,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:36,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:36,756 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:37,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:37,206 INFO L93 Difference]: Finished difference Result 9174 states and 24233 transitions. [2022-01-18 11:08:37,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:37,206 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:37,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:37,218 INFO L225 Difference]: With dead ends: 9174 [2022-01-18 11:08:37,218 INFO L226 Difference]: Without dead ends: 8694 [2022-01-18 11:08:37,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:08:37,218 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 212 mSDsluCounter, 2681 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:37,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 2882 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:37,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8694 states. [2022-01-18 11:08:37,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8694 to 7694. [2022-01-18 11:08:37,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.643052125308722) internal successors, (20333), 7693 states have internal predecessors, (20333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:37,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-01-18 11:08:37,320 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-01-18 11:08:37,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:37,320 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-01-18 11:08:37,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:37,320 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-01-18 11:08:37,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:37,328 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:37,328 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:37,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2022-01-18 11:08:37,328 INFO L402 AbstractCegarLoop]: === Iteration 376 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:37,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:37,328 INFO L85 PathProgramCache]: Analyzing trace with hash 540196150, now seen corresponding path program 74 times [2022-01-18 11:08:37,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:37,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405699662] [2022-01-18 11:08:37,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:37,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:37,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:37,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:37,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405699662] [2022-01-18 11:08:37,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405699662] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:37,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:37,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:37,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549295216] [2022-01-18 11:08:37,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:37,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:37,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:37,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:37,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:37,441 INFO L87 Difference]: Start difference. First operand 7694 states and 20333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:37,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:37,995 INFO L93 Difference]: Finished difference Result 9210 states and 24328 transitions. [2022-01-18 11:08:37,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:08:37,995 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:37,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:38,008 INFO L225 Difference]: With dead ends: 9210 [2022-01-18 11:08:38,008 INFO L226 Difference]: Without dead ends: 8690 [2022-01-18 11:08:38,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1606, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:08:38,008 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 278 mSDsluCounter, 2769 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 2978 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:38,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 2978 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:38,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8690 states. [2022-01-18 11:08:38,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8690 to 7690. [2022-01-18 11:08:38,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6429964884900508) internal successors, (20322), 7689 states have internal predecessors, (20322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:38,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-01-18 11:08:38,124 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-01-18 11:08:38,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:38,124 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-01-18 11:08:38,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:38,125 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-01-18 11:08:38,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:38,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:38,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:38,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2022-01-18 11:08:38,133 INFO L402 AbstractCegarLoop]: === Iteration 377 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:38,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:38,133 INFO L85 PathProgramCache]: Analyzing trace with hash 15060614, now seen corresponding path program 75 times [2022-01-18 11:08:38,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:38,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280551329] [2022-01-18 11:08:38,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:38,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:38,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:38,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:38,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280551329] [2022-01-18 11:08:38,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280551329] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:38,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:38,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:38,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679582029] [2022-01-18 11:08:38,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:38,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:38,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:38,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:38,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:38,276 INFO L87 Difference]: Start difference. First operand 7690 states and 20322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:38,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:38,897 INFO L93 Difference]: Finished difference Result 9354 states and 24696 transitions. [2022-01-18 11:08:38,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:08:38,897 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:38,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:38,908 INFO L225 Difference]: With dead ends: 9354 [2022-01-18 11:08:38,908 INFO L226 Difference]: Without dead ends: 8794 [2022-01-18 11:08:38,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=619, Invalid=2033, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:08:38,909 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 358 mSDsluCounter, 2635 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:38,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 2849 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:38,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8794 states. [2022-01-18 11:08:38,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8794 to 7686. [2022-01-18 11:08:38,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6429407937540663) internal successors, (20311), 7685 states have internal predecessors, (20311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:39,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20311 transitions. [2022-01-18 11:08:39,004 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20311 transitions. Word has length 109 [2022-01-18 11:08:39,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:39,004 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20311 transitions. [2022-01-18 11:08:39,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:39,005 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20311 transitions. [2022-01-18 11:08:39,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:39,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:39,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:39,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2022-01-18 11:08:39,012 INFO L402 AbstractCegarLoop]: === Iteration 378 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:39,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:39,013 INFO L85 PathProgramCache]: Analyzing trace with hash -175252790, now seen corresponding path program 76 times [2022-01-18 11:08:39,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:39,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299684998] [2022-01-18 11:08:39,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:39,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:39,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:39,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299684998] [2022-01-18 11:08:39,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299684998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:39,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:39,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:39,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720953155] [2022-01-18 11:08:39,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:39,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:39,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:39,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:39,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:39,130 INFO L87 Difference]: Start difference. First operand 7686 states and 20311 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:39,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:39,585 INFO L93 Difference]: Finished difference Result 9280 states and 24516 transitions. [2022-01-18 11:08:39,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:08:39,585 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:39,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:39,596 INFO L225 Difference]: With dead ends: 9280 [2022-01-18 11:08:39,596 INFO L226 Difference]: Without dead ends: 8801 [2022-01-18 11:08:39,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:08:39,597 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 215 mSDsluCounter, 2701 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:39,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 2894 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:39,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8801 states. [2022-01-18 11:08:39,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8801 to 7698. [2022-01-18 11:08:39,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:39,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-01-18 11:08:39,693 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-01-18 11:08:39,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:39,693 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-01-18 11:08:39,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:39,693 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-01-18 11:08:39,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:39,701 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:39,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:39,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2022-01-18 11:08:39,701 INFO L402 AbstractCegarLoop]: === Iteration 379 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:39,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:39,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1452270328, now seen corresponding path program 77 times [2022-01-18 11:08:39,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:39,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709424309] [2022-01-18 11:08:39,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:39,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:39,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:39,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:39,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709424309] [2022-01-18 11:08:39,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709424309] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:39,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:39,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:39,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779234581] [2022-01-18 11:08:39,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:39,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:39,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:39,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:39,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:39,818 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:40,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:40,273 INFO L93 Difference]: Finished difference Result 9238 states and 24405 transitions. [2022-01-18 11:08:40,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:40,273 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:40,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:40,286 INFO L225 Difference]: With dead ends: 9238 [2022-01-18 11:08:40,286 INFO L226 Difference]: Without dead ends: 8758 [2022-01-18 11:08:40,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=319, Invalid=1013, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:08:40,287 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 215 mSDsluCounter, 2248 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 2460 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:40,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 2460 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:40,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8758 states. [2022-01-18 11:08:40,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8758 to 7694. [2022-01-18 11:08:40,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:40,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-01-18 11:08:40,395 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-01-18 11:08:40,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:40,395 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-01-18 11:08:40,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:40,395 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-01-18 11:08:40,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:40,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:40,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:40,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2022-01-18 11:08:40,403 INFO L402 AbstractCegarLoop]: === Iteration 380 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:40,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:40,404 INFO L85 PathProgramCache]: Analyzing trace with hash 331212988, now seen corresponding path program 78 times [2022-01-18 11:08:40,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:40,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746327979] [2022-01-18 11:08:40,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:40,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:40,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:40,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:40,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746327979] [2022-01-18 11:08:40,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746327979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:40,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:40,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:40,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65081845] [2022-01-18 11:08:40,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:40,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:40,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:40,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:40,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:40,523 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:41,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:41,068 INFO L93 Difference]: Finished difference Result 9366 states and 24737 transitions. [2022-01-18 11:08:41,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:08:41,068 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:41,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:41,078 INFO L225 Difference]: With dead ends: 9366 [2022-01-18 11:08:41,079 INFO L226 Difference]: Without dead ends: 8846 [2022-01-18 11:08:41,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1528, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:08:41,079 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 290 mSDsluCounter, 2756 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:41,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2964 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:41,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8846 states. [2022-01-18 11:08:41,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8846 to 7690. [2022-01-18 11:08:41,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:41,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-01-18 11:08:41,172 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-01-18 11:08:41,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:41,172 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-01-18 11:08:41,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:41,172 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-01-18 11:08:41,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:41,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:41,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:41,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2022-01-18 11:08:41,180 INFO L402 AbstractCegarLoop]: === Iteration 381 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:41,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:41,180 INFO L85 PathProgramCache]: Analyzing trace with hash 403842712, now seen corresponding path program 79 times [2022-01-18 11:08:41,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:41,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51051419] [2022-01-18 11:08:41,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:41,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:41,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:41,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:41,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51051419] [2022-01-18 11:08:41,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51051419] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:41,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:41,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:41,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590110157] [2022-01-18 11:08:41,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:41,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:41,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:41,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:41,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:41,293 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:41,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:41,831 INFO L93 Difference]: Finished difference Result 9368 states and 24729 transitions. [2022-01-18 11:08:41,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:08:41,831 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:41,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:41,842 INFO L225 Difference]: With dead ends: 9368 [2022-01-18 11:08:41,842 INFO L226 Difference]: Without dead ends: 8846 [2022-01-18 11:08:41,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=479, Invalid=1501, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:08:41,843 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 271 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 2989 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:41,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 2989 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:41,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8846 states. [2022-01-18 11:08:41,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8846 to 7694. [2022-01-18 11:08:41,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:41,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-01-18 11:08:41,938 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-01-18 11:08:41,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:41,938 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-01-18 11:08:41,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:41,938 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-01-18 11:08:41,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:41,946 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:41,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:41,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380 [2022-01-18 11:08:41,946 INFO L402 AbstractCegarLoop]: === Iteration 382 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:41,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:41,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1154072638, now seen corresponding path program 80 times [2022-01-18 11:08:41,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:41,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538103286] [2022-01-18 11:08:41,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:41,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:42,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:42,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:42,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538103286] [2022-01-18 11:08:42,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538103286] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:42,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:42,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:42,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571733447] [2022-01-18 11:08:42,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:42,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:42,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:42,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:42,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:42,064 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:42,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:42,515 INFO L93 Difference]: Finished difference Result 9220 states and 24343 transitions. [2022-01-18 11:08:42,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:42,515 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:42,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:42,526 INFO L225 Difference]: With dead ends: 9220 [2022-01-18 11:08:42,527 INFO L226 Difference]: Without dead ends: 8741 [2022-01-18 11:08:42,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=344, Invalid=1062, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:08:42,527 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 214 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2468 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:42,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2468 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:42,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8741 states. [2022-01-18 11:08:42,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8741 to 7698. [2022-01-18 11:08:42,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:42,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-01-18 11:08:42,624 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-01-18 11:08:42,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:42,624 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-01-18 11:08:42,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:42,624 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-01-18 11:08:42,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:42,632 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:42,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:42,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381 [2022-01-18 11:08:42,632 INFO L402 AbstractCegarLoop]: === Iteration 383 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:42,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:42,633 INFO L85 PathProgramCache]: Analyzing trace with hash 473450480, now seen corresponding path program 81 times [2022-01-18 11:08:42,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:42,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454780138] [2022-01-18 11:08:42,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:42,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:42,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:42,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:42,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454780138] [2022-01-18 11:08:42,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454780138] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:42,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:42,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:42,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32681514] [2022-01-18 11:08:42,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:42,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:42,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:42,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:42,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:42,749 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:43,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:43,217 INFO L93 Difference]: Finished difference Result 9138 states and 24122 transitions. [2022-01-18 11:08:43,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:08:43,218 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:43,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:43,229 INFO L225 Difference]: With dead ends: 9138 [2022-01-18 11:08:43,229 INFO L226 Difference]: Without dead ends: 8646 [2022-01-18 11:08:43,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=1028, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:08:43,230 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 213 mSDsluCounter, 2513 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2716 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:43,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2716 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:43,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8646 states. [2022-01-18 11:08:43,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8646 to 7682. [2022-01-18 11:08:43,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7681 states have (on average 2.642885041010285) internal successors, (20300), 7681 states have internal predecessors, (20300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:43,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20300 transitions. [2022-01-18 11:08:43,327 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20300 transitions. Word has length 109 [2022-01-18 11:08:43,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:43,327 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20300 transitions. [2022-01-18 11:08:43,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:43,328 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20300 transitions. [2022-01-18 11:08:43,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:43,336 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:43,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:43,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2022-01-18 11:08:43,336 INFO L402 AbstractCegarLoop]: === Iteration 384 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:43,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:43,337 INFO L85 PathProgramCache]: Analyzing trace with hash -223288894, now seen corresponding path program 82 times [2022-01-18 11:08:43,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:43,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454754978] [2022-01-18 11:08:43,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:43,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:43,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:43,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:43,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454754978] [2022-01-18 11:08:43,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454754978] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:43,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:43,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:43,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746769255] [2022-01-18 11:08:43,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:43,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:43,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:43,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:43,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:43,473 INFO L87 Difference]: Start difference. First operand 7682 states and 20300 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:43,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:43,903 INFO L93 Difference]: Finished difference Result 9176 states and 24230 transitions. [2022-01-18 11:08:43,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:08:43,903 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:43,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:43,914 INFO L225 Difference]: With dead ends: 9176 [2022-01-18 11:08:43,915 INFO L226 Difference]: Without dead ends: 8697 [2022-01-18 11:08:43,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:08:43,915 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 214 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:43,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2445 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:43,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2022-01-18 11:08:43,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 7698. [2022-01-18 11:08:43,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:44,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-01-18 11:08:44,011 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-01-18 11:08:44,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:44,011 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-01-18 11:08:44,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:44,011 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-01-18 11:08:44,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:44,019 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:44,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:44,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383 [2022-01-18 11:08:44,019 INFO L402 AbstractCegarLoop]: === Iteration 385 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:44,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:44,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1404234224, now seen corresponding path program 83 times [2022-01-18 11:08:44,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:44,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150784512] [2022-01-18 11:08:44,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:44,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:44,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:44,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:44,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150784512] [2022-01-18 11:08:44,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150784512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:44,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:44,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:44,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232557479] [2022-01-18 11:08:44,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:44,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:44,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:44,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:44,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:44,145 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:44,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:44,583 INFO L93 Difference]: Finished difference Result 9134 states and 24119 transitions. [2022-01-18 11:08:44,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:44,583 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:44,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:44,593 INFO L225 Difference]: With dead ends: 9134 [2022-01-18 11:08:44,593 INFO L226 Difference]: Without dead ends: 8654 [2022-01-18 11:08:44,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=1079, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:08:44,594 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 215 mSDsluCounter, 2514 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:44,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 2718 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:44,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8654 states. [2022-01-18 11:08:44,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8654 to 7694. [2022-01-18 11:08:44,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:44,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-01-18 11:08:44,686 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-01-18 11:08:44,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:44,686 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-01-18 11:08:44,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:44,686 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-01-18 11:08:44,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:44,694 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:44,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:44,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384 [2022-01-18 11:08:44,694 INFO L402 AbstractCegarLoop]: === Iteration 386 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:44,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:44,694 INFO L85 PathProgramCache]: Analyzing trace with hash 283176884, now seen corresponding path program 84 times [2022-01-18 11:08:44,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:44,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195990660] [2022-01-18 11:08:44,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:44,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:44,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:44,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:44,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195990660] [2022-01-18 11:08:44,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195990660] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:44,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:44,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:44,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176733141] [2022-01-18 11:08:44,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:44,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:44,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:44,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:44,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:44,806 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:45,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:45,315 INFO L93 Difference]: Finished difference Result 9242 states and 24396 transitions. [2022-01-18 11:08:45,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:08:45,316 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:45,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:45,328 INFO L225 Difference]: With dead ends: 9242 [2022-01-18 11:08:45,328 INFO L226 Difference]: Without dead ends: 8722 [2022-01-18 11:08:45,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=441, Invalid=1451, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:08:45,329 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 290 mSDsluCounter, 2569 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:45,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2777 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:45,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8722 states. [2022-01-18 11:08:45,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8722 to 7690. [2022-01-18 11:08:45,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:45,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-01-18 11:08:45,433 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-01-18 11:08:45,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:45,433 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-01-18 11:08:45,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:45,434 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-01-18 11:08:45,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:45,441 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:45,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:45,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385 [2022-01-18 11:08:45,441 INFO L402 AbstractCegarLoop]: === Iteration 387 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:45,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:45,441 INFO L85 PathProgramCache]: Analyzing trace with hash 355806608, now seen corresponding path program 85 times [2022-01-18 11:08:45,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:45,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867053276] [2022-01-18 11:08:45,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:45,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:45,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:45,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:45,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867053276] [2022-01-18 11:08:45,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867053276] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:45,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:45,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:45,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031987442] [2022-01-18 11:08:45,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:45,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:45,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:45,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:45,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:45,559 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:46,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:46,163 INFO L93 Difference]: Finished difference Result 9340 states and 24652 transitions. [2022-01-18 11:08:46,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:08:46,164 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:46,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:46,175 INFO L225 Difference]: With dead ends: 9340 [2022-01-18 11:08:46,175 INFO L226 Difference]: Without dead ends: 8818 [2022-01-18 11:08:46,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=487, Invalid=1493, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:08:46,176 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 301 mSDsluCounter, 2617 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 2807 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:46,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 2807 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:46,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8818 states. [2022-01-18 11:08:46,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8818 to 7694. [2022-01-18 11:08:46,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:46,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-01-18 11:08:46,275 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-01-18 11:08:46,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:46,275 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-01-18 11:08:46,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:46,275 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-01-18 11:08:46,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:46,283 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:46,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:46,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386 [2022-01-18 11:08:46,283 INFO L402 AbstractCegarLoop]: === Iteration 388 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:46,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:46,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1202108742, now seen corresponding path program 86 times [2022-01-18 11:08:46,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:46,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045179763] [2022-01-18 11:08:46,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:46,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:46,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:46,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:46,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045179763] [2022-01-18 11:08:46,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045179763] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:46,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:46,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:46,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738679525] [2022-01-18 11:08:46,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:46,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:46,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:46,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:46,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:46,406 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:46,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:46,871 INFO L93 Difference]: Finished difference Result 9176 states and 24222 transitions. [2022-01-18 11:08:46,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:46,872 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:46,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:46,882 INFO L225 Difference]: With dead ends: 9176 [2022-01-18 11:08:46,882 INFO L226 Difference]: Without dead ends: 8697 [2022-01-18 11:08:46,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:08:46,883 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 238 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 2508 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:46,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 2508 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:46,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2022-01-18 11:08:46,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 7698. [2022-01-18 11:08:46,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:46,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-01-18 11:08:46,977 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-01-18 11:08:46,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:46,977 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-01-18 11:08:46,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:46,977 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-01-18 11:08:46,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:46,985 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:46,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:46,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387 [2022-01-18 11:08:46,985 INFO L402 AbstractCegarLoop]: === Iteration 389 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:46,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:46,985 INFO L85 PathProgramCache]: Analyzing trace with hash 425414376, now seen corresponding path program 87 times [2022-01-18 11:08:46,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:46,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084842684] [2022-01-18 11:08:46,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:46,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:47,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:47,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:47,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084842684] [2022-01-18 11:08:47,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084842684] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:47,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:47,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:47,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105439641] [2022-01-18 11:08:47,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:47,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:47,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:47,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:47,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:47,098 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:47,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:47,511 INFO L93 Difference]: Finished difference Result 9110 states and 24045 transitions. [2022-01-18 11:08:47,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:08:47,511 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:47,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:47,522 INFO L225 Difference]: With dead ends: 9110 [2022-01-18 11:08:47,522 INFO L226 Difference]: Without dead ends: 8622 [2022-01-18 11:08:47,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:08:47,522 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 226 mSDsluCounter, 2480 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2676 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:47,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2676 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:47,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8622 states. [2022-01-18 11:08:47,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8622 to 7686. [2022-01-18 11:08:47,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.64242029928432) internal successors, (20307), 7685 states have internal predecessors, (20307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:47,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20307 transitions. [2022-01-18 11:08:47,613 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20307 transitions. Word has length 109 [2022-01-18 11:08:47,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:47,613 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20307 transitions. [2022-01-18 11:08:47,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:47,613 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20307 transitions. [2022-01-18 11:08:47,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:47,621 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:47,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:47,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388 [2022-01-18 11:08:47,621 INFO L402 AbstractCegarLoop]: === Iteration 390 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:47,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:47,621 INFO L85 PathProgramCache]: Analyzing trace with hash -856929724, now seen corresponding path program 88 times [2022-01-18 11:08:47,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:47,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822203848] [2022-01-18 11:08:47,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:47,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:47,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:47,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:47,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822203848] [2022-01-18 11:08:47,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822203848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:47,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:47,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:47,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37236306] [2022-01-18 11:08:47,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:47,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:47,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:47,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:47,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:47,737 INFO L87 Difference]: Start difference. First operand 7686 states and 20307 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:48,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:48,417 INFO L93 Difference]: Finished difference Result 9333 states and 24614 transitions. [2022-01-18 11:08:48,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:08:48,418 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:48,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:48,428 INFO L225 Difference]: With dead ends: 9333 [2022-01-18 11:08:48,429 INFO L226 Difference]: Without dead ends: 8768 [2022-01-18 11:08:48,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=651, Invalid=1899, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:08:48,429 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 365 mSDsluCounter, 2433 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:48,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 2626 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:48,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8768 states. [2022-01-18 11:08:48,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8768 to 7690. [2022-01-18 11:08:48,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.641956041097672) internal successors, (20314), 7689 states have internal predecessors, (20314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:48,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20314 transitions. [2022-01-18 11:08:48,531 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20314 transitions. Word has length 109 [2022-01-18 11:08:48,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:48,531 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20314 transitions. [2022-01-18 11:08:48,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:48,531 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20314 transitions. [2022-01-18 11:08:48,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:48,539 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:48,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:48,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389 [2022-01-18 11:08:48,539 INFO L402 AbstractCegarLoop]: === Iteration 391 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:48,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:48,539 INFO L85 PathProgramCache]: Analyzing trace with hash 7501338, now seen corresponding path program 89 times [2022-01-18 11:08:48,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:48,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814836167] [2022-01-18 11:08:48,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:48,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:48,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:48,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:48,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:48,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814836167] [2022-01-18 11:08:48,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814836167] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:48,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:48,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:48,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294042007] [2022-01-18 11:08:48,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:48,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:48,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:48,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:48,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:48,657 INFO L87 Difference]: Start difference. First operand 7690 states and 20314 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:49,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:49,236 INFO L93 Difference]: Finished difference Result 9220 states and 24318 transitions. [2022-01-18 11:08:49,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:08:49,236 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:49,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:49,248 INFO L225 Difference]: With dead ends: 9220 [2022-01-18 11:08:49,248 INFO L226 Difference]: Without dead ends: 8698 [2022-01-18 11:08:49,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=502, Invalid=1660, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:08:49,248 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 307 mSDsluCounter, 2614 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 2804 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:49,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 2804 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:49,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8698 states. [2022-01-18 11:08:49,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8698 to 7694. [2022-01-18 11:08:49,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6414922656960873) internal successors, (20321), 7693 states have internal predecessors, (20321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:49,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20321 transitions. [2022-01-18 11:08:49,356 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20321 transitions. Word has length 109 [2022-01-18 11:08:49,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:49,356 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20321 transitions. [2022-01-18 11:08:49,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:49,356 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20321 transitions. [2022-01-18 11:08:49,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:49,364 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:49,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:49,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390 [2022-01-18 11:08:49,365 INFO L402 AbstractCegarLoop]: === Iteration 392 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:49,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:49,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1550414012, now seen corresponding path program 90 times [2022-01-18 11:08:49,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:49,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33177549] [2022-01-18 11:08:49,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:49,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:49,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:49,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:49,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33177549] [2022-01-18 11:08:49,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33177549] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:49,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:49,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:49,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805933945] [2022-01-18 11:08:49,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:49,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:49,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:49,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:49,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:49,484 INFO L87 Difference]: Start difference. First operand 7694 states and 20321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:49,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:49,934 INFO L93 Difference]: Finished difference Result 9080 states and 23954 transitions. [2022-01-18 11:08:49,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:49,934 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:49,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:49,944 INFO L225 Difference]: With dead ends: 9080 [2022-01-18 11:08:49,944 INFO L226 Difference]: Without dead ends: 8601 [2022-01-18 11:08:49,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:08:49,944 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 235 mSDsluCounter, 2442 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:49,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 2633 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:49,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8601 states. [2022-01-18 11:08:50,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8601 to 7698. [2022-01-18 11:08:50,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6410289723268807) internal successors, (20328), 7697 states have internal predecessors, (20328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:50,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20328 transitions. [2022-01-18 11:08:50,036 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20328 transitions. Word has length 109 [2022-01-18 11:08:50,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:50,036 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20328 transitions. [2022-01-18 11:08:50,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:50,036 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20328 transitions. [2022-01-18 11:08:50,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:50,044 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:50,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:50,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391 [2022-01-18 11:08:50,044 INFO L402 AbstractCegarLoop]: === Iteration 393 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:50,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:50,044 INFO L85 PathProgramCache]: Analyzing trace with hash 77109106, now seen corresponding path program 91 times [2022-01-18 11:08:50,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:50,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707670332] [2022-01-18 11:08:50,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:50,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:50,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:50,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:50,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707670332] [2022-01-18 11:08:50,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707670332] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:50,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:50,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:50,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217446665] [2022-01-18 11:08:50,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:50,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:50,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:50,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:50,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:50,159 INFO L87 Difference]: Start difference. First operand 7698 states and 20328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:50,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:50,555 INFO L93 Difference]: Finished difference Result 8970 states and 23656 transitions. [2022-01-18 11:08:50,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:08:50,555 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:50,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:50,565 INFO L225 Difference]: With dead ends: 8970 [2022-01-18 11:08:50,565 INFO L226 Difference]: Without dead ends: 8470 [2022-01-18 11:08:50,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=900, Unknown=0, NotChecked=0, Total=1190 [2022-01-18 11:08:50,565 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 212 mSDsluCounter, 2457 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 2649 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:50,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 2649 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:50,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2022-01-18 11:08:50,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 7674. [2022-01-18 11:08:50,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7674 states, 7673 states have (on average 2.643294669620748) internal successors, (20282), 7673 states have internal predecessors, (20282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:50,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7674 states to 7674 states and 20282 transitions. [2022-01-18 11:08:50,656 INFO L78 Accepts]: Start accepts. Automaton has 7674 states and 20282 transitions. Word has length 109 [2022-01-18 11:08:50,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:50,656 INFO L470 AbstractCegarLoop]: Abstraction has 7674 states and 20282 transitions. [2022-01-18 11:08:50,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:50,657 INFO L276 IsEmpty]: Start isEmpty. Operand 7674 states and 20282 transitions. [2022-01-18 11:08:50,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:50,664 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:50,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:50,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392 [2022-01-18 11:08:50,664 INFO L402 AbstractCegarLoop]: === Iteration 394 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:50,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:50,665 INFO L85 PathProgramCache]: Analyzing trace with hash 882893914, now seen corresponding path program 92 times [2022-01-18 11:08:50,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:50,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906740590] [2022-01-18 11:08:50,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:50,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:50,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:50,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:50,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906740590] [2022-01-18 11:08:50,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906740590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:50,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:50,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:50,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840220874] [2022-01-18 11:08:50,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:50,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:50,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:50,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:50,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:50,784 INFO L87 Difference]: Start difference. First operand 7674 states and 20282 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:51,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:51,190 INFO L93 Difference]: Finished difference Result 9008 states and 23772 transitions. [2022-01-18 11:08:51,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:08:51,191 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:51,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:51,201 INFO L225 Difference]: With dead ends: 9008 [2022-01-18 11:08:51,201 INFO L226 Difference]: Without dead ends: 8529 [2022-01-18 11:08:51,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:08:51,201 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 207 mSDsluCounter, 2076 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:51,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 2274 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:51,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8529 states. [2022-01-18 11:08:51,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8529 to 7698. [2022-01-18 11:08:51,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:51,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-01-18 11:08:51,301 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-01-18 11:08:51,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:51,301 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-01-18 11:08:51,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:51,301 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-01-18 11:08:51,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:51,336 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:51,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:51,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393 [2022-01-18 11:08:51,336 INFO L402 AbstractCegarLoop]: === Iteration 395 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:51,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:51,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1784550264, now seen corresponding path program 93 times [2022-01-18 11:08:51,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:51,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643514653] [2022-01-18 11:08:51,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:51,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:51,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:51,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:51,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643514653] [2022-01-18 11:08:51,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643514653] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:51,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:51,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:51,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513013923] [2022-01-18 11:08:51,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:51,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:51,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:51,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:51,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:51,447 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:51,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:51,890 INFO L93 Difference]: Finished difference Result 8974 states and 23683 transitions. [2022-01-18 11:08:51,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:51,890 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:51,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:51,901 INFO L225 Difference]: With dead ends: 8974 [2022-01-18 11:08:51,901 INFO L226 Difference]: Without dead ends: 8494 [2022-01-18 11:08:51,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:08:51,902 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 200 mSDsluCounter, 2651 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:51,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2849 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:51,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8494 states. [2022-01-18 11:08:51,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8494 to 7694. [2022-01-18 11:08:51,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.643052125308722) internal successors, (20333), 7693 states have internal predecessors, (20333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:52,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-01-18 11:08:52,005 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-01-18 11:08:52,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:52,005 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-01-18 11:08:52,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:52,005 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-01-18 11:08:52,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:52,013 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:52,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:52,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394 [2022-01-18 11:08:52,013 INFO L402 AbstractCegarLoop]: === Iteration 396 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:52,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:52,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1389359692, now seen corresponding path program 94 times [2022-01-18 11:08:52,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:52,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473551928] [2022-01-18 11:08:52,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:52,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:52,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:52,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:52,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473551928] [2022-01-18 11:08:52,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473551928] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:52,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:52,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:52,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659780374] [2022-01-18 11:08:52,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:52,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:52,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:52,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:52,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:52,125 INFO L87 Difference]: Start difference. First operand 7694 states and 20333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:52,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:52,655 INFO L93 Difference]: Finished difference Result 9010 states and 23778 transitions. [2022-01-18 11:08:52,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:08:52,655 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:52,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:52,665 INFO L225 Difference]: With dead ends: 9010 [2022-01-18 11:08:52,665 INFO L226 Difference]: Without dead ends: 8490 [2022-01-18 11:08:52,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=475, Invalid=1595, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:08:52,666 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 275 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:52,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 2616 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:52,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8490 states. [2022-01-18 11:08:52,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8490 to 7690. [2022-01-18 11:08:52,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6429964884900508) internal successors, (20322), 7689 states have internal predecessors, (20322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:52,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-01-18 11:08:52,755 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-01-18 11:08:52,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:52,756 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-01-18 11:08:52,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:52,756 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-01-18 11:08:52,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:52,763 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:52,763 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:52,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395 [2022-01-18 11:08:52,763 INFO L402 AbstractCegarLoop]: === Iteration 397 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:52,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:52,763 INFO L85 PathProgramCache]: Analyzing trace with hash 864224156, now seen corresponding path program 95 times [2022-01-18 11:08:52,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:52,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569772583] [2022-01-18 11:08:52,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:52,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:52,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:52,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:52,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569772583] [2022-01-18 11:08:52,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569772583] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:52,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:52,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:52,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475201838] [2022-01-18 11:08:52,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:52,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:52,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:52,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:52,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:52,871 INFO L87 Difference]: Start difference. First operand 7690 states and 20322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:53,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:53,453 INFO L93 Difference]: Finished difference Result 9126 states and 24069 transitions. [2022-01-18 11:08:53,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:08:53,453 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:53,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:53,463 INFO L225 Difference]: With dead ends: 9126 [2022-01-18 11:08:53,464 INFO L226 Difference]: Without dead ends: 8566 [2022-01-18 11:08:53,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=614, Invalid=1936, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:08:53,464 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 336 mSDsluCounter, 2774 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:53,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 2983 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:53,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8566 states. [2022-01-18 11:08:53,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8566 to 7686. [2022-01-18 11:08:53,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6429407937540663) internal successors, (20311), 7685 states have internal predecessors, (20311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:53,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20311 transitions. [2022-01-18 11:08:53,557 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20311 transitions. Word has length 109 [2022-01-18 11:08:53,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:53,557 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20311 transitions. [2022-01-18 11:08:53,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:53,557 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20311 transitions. [2022-01-18 11:08:53,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:53,565 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:53,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:53,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396 [2022-01-18 11:08:53,566 INFO L402 AbstractCegarLoop]: === Iteration 398 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:53,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:53,566 INFO L85 PathProgramCache]: Analyzing trace with hash 673910752, now seen corresponding path program 96 times [2022-01-18 11:08:53,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:53,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201373056] [2022-01-18 11:08:53,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:53,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:53,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:53,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:53,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201373056] [2022-01-18 11:08:53,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201373056] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:53,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:53,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:53,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001626590] [2022-01-18 11:08:53,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:53,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:53,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:53,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:53,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:53,679 INFO L87 Difference]: Start difference. First operand 7686 states and 20311 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:54,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:54,129 INFO L93 Difference]: Finished difference Result 9076 states and 23955 transitions. [2022-01-18 11:08:54,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:08:54,129 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:54,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:54,140 INFO L225 Difference]: With dead ends: 9076 [2022-01-18 11:08:54,140 INFO L226 Difference]: Without dead ends: 8597 [2022-01-18 11:08:54,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:08:54,141 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 232 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:54,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 2679 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:54,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8597 states. [2022-01-18 11:08:54,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8597 to 7698. [2022-01-18 11:08:54,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:54,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-01-18 11:08:54,240 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-01-18 11:08:54,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:54,240 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-01-18 11:08:54,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:54,240 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-01-18 11:08:54,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:54,248 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:54,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:54,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397 [2022-01-18 11:08:54,248 INFO L402 AbstractCegarLoop]: === Iteration 399 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:54,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:54,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1993533426, now seen corresponding path program 97 times [2022-01-18 11:08:54,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:54,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885685640] [2022-01-18 11:08:54,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:54,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:54,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:54,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:54,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:54,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885685640] [2022-01-18 11:08:54,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885685640] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:54,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:54,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:54,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991485778] [2022-01-18 11:08:54,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:54,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:54,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:54,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:54,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:54,358 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:54,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:54,803 INFO L93 Difference]: Finished difference Result 9034 states and 23844 transitions. [2022-01-18 11:08:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:54,803 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:54,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:54,815 INFO L225 Difference]: With dead ends: 9034 [2022-01-18 11:08:54,815 INFO L226 Difference]: Without dead ends: 8554 [2022-01-18 11:08:54,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:08:54,816 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 233 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:54,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2509 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:54,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2022-01-18 11:08:54,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 7694. [2022-01-18 11:08:54,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:54,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-01-18 11:08:54,931 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-01-18 11:08:54,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:54,931 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-01-18 11:08:54,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:54,931 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-01-18 11:08:54,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:54,939 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:54,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:54,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398 [2022-01-18 11:08:54,939 INFO L402 AbstractCegarLoop]: === Iteration 400 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:54,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:54,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1180376530, now seen corresponding path program 98 times [2022-01-18 11:08:54,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:54,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800070548] [2022-01-18 11:08:54,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:54,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:55,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:55,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:55,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800070548] [2022-01-18 11:08:55,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800070548] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:55,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:55,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:55,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509467072] [2022-01-18 11:08:55,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:55,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:55,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:55,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:55,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:55,051 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:55,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:55,565 INFO L93 Difference]: Finished difference Result 9162 states and 24176 transitions. [2022-01-18 11:08:55,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:08:55,565 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:55,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:55,575 INFO L225 Difference]: With dead ends: 9162 [2022-01-18 11:08:55,575 INFO L226 Difference]: Without dead ends: 8642 [2022-01-18 11:08:55,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=463, Invalid=1517, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:08:55,576 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 304 mSDsluCounter, 2518 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:55,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 2718 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:55,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8642 states. [2022-01-18 11:08:55,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8642 to 7690. [2022-01-18 11:08:55,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:55,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-01-18 11:08:55,666 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-01-18 11:08:55,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:55,666 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-01-18 11:08:55,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:55,666 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-01-18 11:08:55,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:55,673 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:55,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:55,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399 [2022-01-18 11:08:55,674 INFO L402 AbstractCegarLoop]: === Iteration 401 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:55,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:55,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1253006254, now seen corresponding path program 99 times [2022-01-18 11:08:55,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:55,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264255991] [2022-01-18 11:08:55,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:55,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:55,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:55,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:55,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264255991] [2022-01-18 11:08:55,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264255991] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:55,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:55,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:55,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224317399] [2022-01-18 11:08:55,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:55,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:55,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:55,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:55,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:55,784 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:56,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:56,295 INFO L93 Difference]: Finished difference Result 9164 states and 24168 transitions. [2022-01-18 11:08:56,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:08:56,295 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:56,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:56,305 INFO L225 Difference]: With dead ends: 9164 [2022-01-18 11:08:56,305 INFO L226 Difference]: Without dead ends: 8642 [2022-01-18 11:08:56,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=470, Invalid=1510, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:08:56,306 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 285 mSDsluCounter, 2581 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 2767 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:56,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 2767 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:56,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8642 states. [2022-01-18 11:08:56,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8642 to 7694. [2022-01-18 11:08:56,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:56,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-01-18 11:08:56,397 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-01-18 11:08:56,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:56,397 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-01-18 11:08:56,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:56,398 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-01-18 11:08:56,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:56,405 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:56,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:56,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400 [2022-01-18 11:08:56,405 INFO L402 AbstractCegarLoop]: === Iteration 402 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:56,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:56,405 INFO L85 PathProgramCache]: Analyzing trace with hash -304909096, now seen corresponding path program 100 times [2022-01-18 11:08:56,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:56,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151119123] [2022-01-18 11:08:56,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:56,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:56,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:56,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:56,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151119123] [2022-01-18 11:08:56,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151119123] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:56,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:56,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:56,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871990400] [2022-01-18 11:08:56,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:56,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:56,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:56,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:56,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:56,524 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:56,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:56,997 INFO L93 Difference]: Finished difference Result 9016 states and 23782 transitions. [2022-01-18 11:08:56,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:56,998 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:56,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:57,010 INFO L225 Difference]: With dead ends: 9016 [2022-01-18 11:08:57,010 INFO L226 Difference]: Without dead ends: 8537 [2022-01-18 11:08:57,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:08:57,010 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 229 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:57,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2538 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:57,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8537 states. [2022-01-18 11:08:57,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8537 to 7698. [2022-01-18 11:08:57,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:57,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-01-18 11:08:57,128 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-01-18 11:08:57,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:57,128 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-01-18 11:08:57,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:57,128 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-01-18 11:08:57,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:57,136 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:57,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:57,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401 [2022-01-18 11:08:57,137 INFO L402 AbstractCegarLoop]: === Iteration 403 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:57,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:57,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1322614022, now seen corresponding path program 101 times [2022-01-18 11:08:57,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:57,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962089652] [2022-01-18 11:08:57,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:57,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:57,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:57,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:57,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962089652] [2022-01-18 11:08:57,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962089652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:57,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:57,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:57,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352951772] [2022-01-18 11:08:57,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:57,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:57,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:57,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:57,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:57,253 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:57,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:57,687 INFO L93 Difference]: Finished difference Result 8934 states and 23561 transitions. [2022-01-18 11:08:57,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:08:57,687 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:57,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:57,698 INFO L225 Difference]: With dead ends: 8934 [2022-01-18 11:08:57,698 INFO L226 Difference]: Without dead ends: 8442 [2022-01-18 11:08:57,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=1022, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:08:57,699 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 205 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2644 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:57,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 2644 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:57,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8442 states. [2022-01-18 11:08:57,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8442 to 7682. [2022-01-18 11:08:57,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7681 states have (on average 2.642885041010285) internal successors, (20300), 7681 states have internal predecessors, (20300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:57,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20300 transitions. [2022-01-18 11:08:57,788 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20300 transitions. Word has length 109 [2022-01-18 11:08:57,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:57,788 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20300 transitions. [2022-01-18 11:08:57,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:57,788 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20300 transitions. [2022-01-18 11:08:57,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:57,795 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:57,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:57,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402 [2022-01-18 11:08:57,796 INFO L402 AbstractCegarLoop]: === Iteration 404 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:57,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:57,796 INFO L85 PathProgramCache]: Analyzing trace with hash 625874648, now seen corresponding path program 102 times [2022-01-18 11:08:57,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:57,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197646377] [2022-01-18 11:08:57,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:57,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:57,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:57,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:57,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197646377] [2022-01-18 11:08:57,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197646377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:57,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:57,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:57,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257008196] [2022-01-18 11:08:57,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:57,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:57,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:57,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:57,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:57,910 INFO L87 Difference]: Start difference. First operand 7682 states and 20300 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:58,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:58,339 INFO L93 Difference]: Finished difference Result 9112 states and 24054 transitions. [2022-01-18 11:08:58,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:08:58,340 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:58,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:58,352 INFO L225 Difference]: With dead ends: 9112 [2022-01-18 11:08:58,352 INFO L226 Difference]: Without dead ends: 8633 [2022-01-18 11:08:58,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1015, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:08:58,353 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 237 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:58,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 2399 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:58,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8633 states. [2022-01-18 11:08:58,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8633 to 7698. [2022-01-18 11:08:58,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:58,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-01-18 11:08:58,454 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-01-18 11:08:58,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:58,454 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-01-18 11:08:58,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:58,454 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-01-18 11:08:58,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:58,462 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:58,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:58,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403 [2022-01-18 11:08:58,462 INFO L402 AbstractCegarLoop]: === Iteration 405 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:58,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:58,462 INFO L85 PathProgramCache]: Analyzing trace with hash -2041569530, now seen corresponding path program 103 times [2022-01-18 11:08:58,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:58,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528599917] [2022-01-18 11:08:58,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:58,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:58,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:58,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:58,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528599917] [2022-01-18 11:08:58,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528599917] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:58,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:58,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:58,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41986107] [2022-01-18 11:08:58,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:58,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:58,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:58,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:58,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:58,577 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:59,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:59,023 INFO L93 Difference]: Finished difference Result 9070 states and 23943 transitions. [2022-01-18 11:08:59,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:08:59,023 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:59,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:59,034 INFO L225 Difference]: With dead ends: 9070 [2022-01-18 11:08:59,034 INFO L226 Difference]: Without dead ends: 8590 [2022-01-18 11:08:59,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:08:59,034 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 221 mSDsluCounter, 2457 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2652 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:59,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2652 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:59,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8590 states. [2022-01-18 11:08:59,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8590 to 7694. [2022-01-18 11:08:59,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:59,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-01-18 11:08:59,125 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-01-18 11:08:59,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:59,125 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-01-18 11:08:59,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:59,126 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-01-18 11:08:59,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:59,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:59,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:59,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404 [2022-01-18 11:08:59,133 INFO L402 AbstractCegarLoop]: === Iteration 406 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:59,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:59,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1132340426, now seen corresponding path program 104 times [2022-01-18 11:08:59,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:59,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575850463] [2022-01-18 11:08:59,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:59,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:08:59,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:08:59,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:08:59,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575850463] [2022-01-18 11:08:59,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575850463] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:08:59,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:08:59,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:08:59,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971816257] [2022-01-18 11:08:59,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:08:59,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:08:59,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:08:59,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:08:59,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:08:59,251 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:59,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:08:59,776 INFO L93 Difference]: Finished difference Result 9178 states and 24220 transitions. [2022-01-18 11:08:59,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:08:59,776 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:08:59,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:08:59,787 INFO L225 Difference]: With dead ends: 9178 [2022-01-18 11:08:59,787 INFO L226 Difference]: Without dead ends: 8658 [2022-01-18 11:08:59,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1440, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:08:59,787 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 297 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:08:59,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 2868 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:08:59,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8658 states. [2022-01-18 11:08:59,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8658 to 7690. [2022-01-18 11:08:59,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:59,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-01-18 11:08:59,904 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-01-18 11:08:59,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:08:59,904 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-01-18 11:08:59,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:08:59,904 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-01-18 11:08:59,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:08:59,911 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:08:59,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:08:59,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405 [2022-01-18 11:08:59,912 INFO L402 AbstractCegarLoop]: === Iteration 407 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:08:59,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:08:59,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1204970150, now seen corresponding path program 105 times [2022-01-18 11:08:59,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:08:59,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735802551] [2022-01-18 11:08:59,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:08:59,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:08:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:00,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:00,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:00,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735802551] [2022-01-18 11:09:00,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735802551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:00,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:00,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:00,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404477139] [2022-01-18 11:09:00,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:00,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:00,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:00,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:00,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:00,026 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:00,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:00,591 INFO L93 Difference]: Finished difference Result 9276 states and 24476 transitions. [2022-01-18 11:09:00,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:09:00,591 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:00,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:00,601 INFO L225 Difference]: With dead ends: 9276 [2022-01-18 11:09:00,602 INFO L226 Difference]: Without dead ends: 8754 [2022-01-18 11:09:00,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=478, Invalid=1502, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:09:00,602 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 293 mSDsluCounter, 2292 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 2489 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:00,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 2489 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:00,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8754 states. [2022-01-18 11:09:00,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8754 to 7694. [2022-01-18 11:09:00,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:00,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-01-18 11:09:00,691 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-01-18 11:09:00,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:00,692 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-01-18 11:09:00,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:00,692 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-01-18 11:09:00,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:00,699 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:00,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:00,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406 [2022-01-18 11:09:00,699 INFO L402 AbstractCegarLoop]: === Iteration 408 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:00,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:00,700 INFO L85 PathProgramCache]: Analyzing trace with hash -352945200, now seen corresponding path program 106 times [2022-01-18 11:09:00,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:00,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519363521] [2022-01-18 11:09:00,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:00,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:00,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:00,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:00,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519363521] [2022-01-18 11:09:00,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519363521] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:00,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:00,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:00,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222908024] [2022-01-18 11:09:00,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:00,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:00,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:00,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:00,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:00,811 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:01,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:01,233 INFO L93 Difference]: Finished difference Result 9112 states and 24046 transitions. [2022-01-18 11:09:01,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:01,233 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:01,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:01,243 INFO L225 Difference]: With dead ends: 9112 [2022-01-18 11:09:01,243 INFO L226 Difference]: Without dead ends: 8633 [2022-01-18 11:09:01,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=335, Invalid=1071, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:01,244 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 239 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 2118 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:01,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 2118 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:01,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8633 states. [2022-01-18 11:09:01,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8633 to 7698. [2022-01-18 11:09:01,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:01,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-01-18 11:09:01,334 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-01-18 11:09:01,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:01,334 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-01-18 11:09:01,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:01,334 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-01-18 11:09:01,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:01,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:01,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:01,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407 [2022-01-18 11:09:01,341 INFO L402 AbstractCegarLoop]: === Iteration 409 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:01,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:01,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1274577918, now seen corresponding path program 107 times [2022-01-18 11:09:01,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:01,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917920356] [2022-01-18 11:09:01,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:01,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:01,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:01,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:01,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917920356] [2022-01-18 11:09:01,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917920356] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:01,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:01,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:01,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319680167] [2022-01-18 11:09:01,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:01,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:01,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:01,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:01,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:01,454 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:01,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:01,856 INFO L93 Difference]: Finished difference Result 9046 states and 23869 transitions. [2022-01-18 11:09:01,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:09:01,856 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:01,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:01,866 INFO L225 Difference]: With dead ends: 9046 [2022-01-18 11:09:01,866 INFO L226 Difference]: Without dead ends: 8558 [2022-01-18 11:09:01,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=948, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:09:01,866 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 211 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:01,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 2232 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:01,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8558 states. [2022-01-18 11:09:01,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8558 to 7686. [2022-01-18 11:09:01,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.64242029928432) internal successors, (20307), 7685 states have internal predecessors, (20307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:01,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20307 transitions. [2022-01-18 11:09:01,956 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20307 transitions. Word has length 109 [2022-01-18 11:09:01,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:01,956 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20307 transitions. [2022-01-18 11:09:01,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:01,957 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20307 transitions. [2022-01-18 11:09:01,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:01,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:01,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:01,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408 [2022-01-18 11:09:01,964 INFO L402 AbstractCegarLoop]: === Iteration 410 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:01,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:01,964 INFO L85 PathProgramCache]: Analyzing trace with hash -7766182, now seen corresponding path program 108 times [2022-01-18 11:09:01,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:01,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888020637] [2022-01-18 11:09:01,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:01,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:02,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:02,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:02,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888020637] [2022-01-18 11:09:02,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888020637] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:02,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:02,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:02,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431293697] [2022-01-18 11:09:02,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:02,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:02,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:02,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:02,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:02,078 INFO L87 Difference]: Start difference. First operand 7686 states and 20307 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:02,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:02,768 INFO L93 Difference]: Finished difference Result 9297 states and 24515 transitions. [2022-01-18 11:09:02,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:09:02,769 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:02,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:02,779 INFO L225 Difference]: With dead ends: 9297 [2022-01-18 11:09:02,780 INFO L226 Difference]: Without dead ends: 8732 [2022-01-18 11:09:02,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=658, Invalid=1994, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:09:02,780 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 355 mSDsluCounter, 2428 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 2620 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:02,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 2620 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:02,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8732 states. [2022-01-18 11:09:02,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8732 to 7690. [2022-01-18 11:09:02,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.641956041097672) internal successors, (20314), 7689 states have internal predecessors, (20314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:02,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20314 transitions. [2022-01-18 11:09:02,875 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20314 transitions. Word has length 109 [2022-01-18 11:09:02,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:02,876 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20314 transitions. [2022-01-18 11:09:02,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:02,876 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20314 transitions. [2022-01-18 11:09:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:02,883 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:02,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:02,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409 [2022-01-18 11:09:02,884 INFO L402 AbstractCegarLoop]: === Iteration 411 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:02,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:02,884 INFO L85 PathProgramCache]: Analyzing trace with hash 856664880, now seen corresponding path program 109 times [2022-01-18 11:09:02,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:02,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84333867] [2022-01-18 11:09:02,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:02,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:02,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:02,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:02,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84333867] [2022-01-18 11:09:02,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84333867] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:02,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:02,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:02,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835084166] [2022-01-18 11:09:02,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:02,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:02,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:02,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:02,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:02,996 INFO L87 Difference]: Start difference. First operand 7690 states and 20314 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:03,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:03,573 INFO L93 Difference]: Finished difference Result 9180 states and 24208 transitions. [2022-01-18 11:09:03,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:09:03,573 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:03,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:03,583 INFO L225 Difference]: With dead ends: 9180 [2022-01-18 11:09:03,583 INFO L226 Difference]: Without dead ends: 8658 [2022-01-18 11:09:03,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:09:03,584 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 300 mSDsluCounter, 1986 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:03,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 2187 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:03,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8658 states. [2022-01-18 11:09:03,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8658 to 7694. [2022-01-18 11:09:03,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6414922656960873) internal successors, (20321), 7693 states have internal predecessors, (20321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:03,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20321 transitions. [2022-01-18 11:09:03,676 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20321 transitions. Word has length 109 [2022-01-18 11:09:03,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:03,676 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20321 transitions. [2022-01-18 11:09:03,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:03,676 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20321 transitions. [2022-01-18 11:09:03,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:03,684 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:03,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:03,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410 [2022-01-18 11:09:03,684 INFO L402 AbstractCegarLoop]: === Iteration 412 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:03,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:03,684 INFO L85 PathProgramCache]: Analyzing trace with hash -701250470, now seen corresponding path program 110 times [2022-01-18 11:09:03,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:03,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895299472] [2022-01-18 11:09:03,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:03,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:03,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:03,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:03,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895299472] [2022-01-18 11:09:03,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895299472] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:03,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:03,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:03,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41717288] [2022-01-18 11:09:03,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:03,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:03,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:03,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:03,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:03,797 INFO L87 Difference]: Start difference. First operand 7694 states and 20321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:04,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:04,224 INFO L93 Difference]: Finished difference Result 9032 states and 23822 transitions. [2022-01-18 11:09:04,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:04,224 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:04,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:04,234 INFO L225 Difference]: With dead ends: 9032 [2022-01-18 11:09:04,234 INFO L226 Difference]: Without dead ends: 8553 [2022-01-18 11:09:04,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:04,234 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 228 mSDsluCounter, 2269 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 2459 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:04,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 2459 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:04,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8553 states. [2022-01-18 11:09:04,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8553 to 7698. [2022-01-18 11:09:04,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6410289723268807) internal successors, (20328), 7697 states have internal predecessors, (20328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:04,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20328 transitions. [2022-01-18 11:09:04,322 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20328 transitions. Word has length 109 [2022-01-18 11:09:04,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:04,323 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20328 transitions. [2022-01-18 11:09:04,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:04,323 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20328 transitions. [2022-01-18 11:09:04,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:04,330 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:04,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:04,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411 [2022-01-18 11:09:04,330 INFO L402 AbstractCegarLoop]: === Iteration 413 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:04,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:04,330 INFO L85 PathProgramCache]: Analyzing trace with hash 926272648, now seen corresponding path program 111 times [2022-01-18 11:09:04,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:04,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100382610] [2022-01-18 11:09:04,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:04,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:04,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:04,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:04,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100382610] [2022-01-18 11:09:04,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100382610] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:04,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:04,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:04,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830568811] [2022-01-18 11:09:04,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:04,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:04,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:04,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:04,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:04,443 INFO L87 Difference]: Start difference. First operand 7698 states and 20328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:04,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:04,828 INFO L93 Difference]: Finished difference Result 8934 states and 23557 transitions. [2022-01-18 11:09:04,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:09:04,829 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:04,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:04,839 INFO L225 Difference]: With dead ends: 8934 [2022-01-18 11:09:04,839 INFO L226 Difference]: Without dead ends: 8438 [2022-01-18 11:09:04,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=961, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:09:04,839 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 209 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2459 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:04,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 2459 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:04,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8438 states. [2022-01-18 11:09:04,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8438 to 7678. [2022-01-18 11:09:04,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7678 states, 7677 states have (on average 2.6428292301680343) internal successors, (20289), 7677 states have internal predecessors, (20289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:04,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7678 states to 7678 states and 20289 transitions. [2022-01-18 11:09:04,929 INFO L78 Accepts]: Start accepts. Automaton has 7678 states and 20289 transitions. Word has length 109 [2022-01-18 11:09:04,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:04,930 INFO L470 AbstractCegarLoop]: Abstraction has 7678 states and 20289 transitions. [2022-01-18 11:09:04,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:04,930 INFO L276 IsEmpty]: Start isEmpty. Operand 7678 states and 20289 transitions. [2022-01-18 11:09:04,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:04,937 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:04,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:04,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412 [2022-01-18 11:09:04,937 INFO L402 AbstractCegarLoop]: === Iteration 414 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:04,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:04,938 INFO L85 PathProgramCache]: Analyzing trace with hash -477638808, now seen corresponding path program 112 times [2022-01-18 11:09:04,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:04,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652315768] [2022-01-18 11:09:04,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:04,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:05,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:05,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:05,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652315768] [2022-01-18 11:09:05,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652315768] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:05,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:05,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:05,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185862897] [2022-01-18 11:09:05,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:05,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:05,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:05,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:05,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:05,049 INFO L87 Difference]: Start difference. First operand 7678 states and 20289 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:05,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:05,472 INFO L93 Difference]: Finished difference Result 8968 states and 23658 transitions. [2022-01-18 11:09:05,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:09:05,472 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:05,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:05,482 INFO L225 Difference]: With dead ends: 8968 [2022-01-18 11:09:05,483 INFO L226 Difference]: Without dead ends: 8489 [2022-01-18 11:09:05,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:09:05,483 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 236 mSDsluCounter, 2313 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2497 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:05,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2497 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:05,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8489 states. [2022-01-18 11:09:05,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8489 to 7698. [2022-01-18 11:09:05,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:05,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-01-18 11:09:05,572 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-01-18 11:09:05,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:05,573 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-01-18 11:09:05,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:05,573 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-01-18 11:09:05,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:05,580 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:05,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:05,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413 [2022-01-18 11:09:05,580 INFO L402 AbstractCegarLoop]: === Iteration 415 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:05,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:05,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1149884310, now seen corresponding path program 113 times [2022-01-18 11:09:05,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:05,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769706289] [2022-01-18 11:09:05,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:05,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:05,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:05,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:05,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769706289] [2022-01-18 11:09:05,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769706289] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:05,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:05,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:05,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502023384] [2022-01-18 11:09:05,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:05,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:05,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:05,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:05,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:05,689 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:06,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:06,132 INFO L93 Difference]: Finished difference Result 8926 states and 23547 transitions. [2022-01-18 11:09:06,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:06,132 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:06,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:06,144 INFO L225 Difference]: With dead ends: 8926 [2022-01-18 11:09:06,144 INFO L226 Difference]: Without dead ends: 8446 [2022-01-18 11:09:06,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:06,145 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 227 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2319 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:06,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 2319 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:06,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8446 states. [2022-01-18 11:09:06,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8446 to 7694. [2022-01-18 11:09:06,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:06,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-01-18 11:09:06,258 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-01-18 11:09:06,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:06,258 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-01-18 11:09:06,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:06,259 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-01-18 11:09:06,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:06,267 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:06,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:06,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414 [2022-01-18 11:09:06,267 INFO L402 AbstractCegarLoop]: === Iteration 416 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:06,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:06,267 INFO L85 PathProgramCache]: Analyzing trace with hash 28826970, now seen corresponding path program 114 times [2022-01-18 11:09:06,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:06,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46192294] [2022-01-18 11:09:06,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:06,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:06,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:06,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:06,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:06,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46192294] [2022-01-18 11:09:06,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46192294] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:06,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:06,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:06,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978371871] [2022-01-18 11:09:06,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:06,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:06,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:06,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:06,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:06,386 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:06,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:06,894 INFO L93 Difference]: Finished difference Result 9014 states and 23769 transitions. [2022-01-18 11:09:06,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:09:06,895 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:06,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:06,905 INFO L225 Difference]: With dead ends: 9014 [2022-01-18 11:09:06,905 INFO L226 Difference]: Without dead ends: 8494 [2022-01-18 11:09:06,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=443, Invalid=1363, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 11:09:06,906 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 296 mSDsluCounter, 2483 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:06,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 2679 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:06,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8494 states. [2022-01-18 11:09:06,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8494 to 7690. [2022-01-18 11:09:06,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:06,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-01-18 11:09:06,997 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-01-18 11:09:06,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:06,997 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-01-18 11:09:06,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:06,997 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-01-18 11:09:07,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:07,005 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:07,005 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:07,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415 [2022-01-18 11:09:07,005 INFO L402 AbstractCegarLoop]: === Iteration 417 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:07,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:07,005 INFO L85 PathProgramCache]: Analyzing trace with hash 101456694, now seen corresponding path program 115 times [2022-01-18 11:09:07,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:07,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749860196] [2022-01-18 11:09:07,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:07,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:07,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:07,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:07,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749860196] [2022-01-18 11:09:07,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749860196] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:07,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:07,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:07,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343999770] [2022-01-18 11:09:07,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:07,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:07,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:07,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:07,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:07,114 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:07,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:07,659 INFO L93 Difference]: Finished difference Result 9128 states and 24069 transitions. [2022-01-18 11:09:07,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:09:07,659 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:07,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:07,669 INFO L225 Difference]: With dead ends: 9128 [2022-01-18 11:09:07,669 INFO L226 Difference]: Without dead ends: 8606 [2022-01-18 11:09:07,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:09:07,669 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 336 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:07,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 2870 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:07,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8606 states. [2022-01-18 11:09:07,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8606 to 7694. [2022-01-18 11:09:07,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:07,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-01-18 11:09:07,760 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-01-18 11:09:07,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:07,760 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-01-18 11:09:07,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:07,760 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-01-18 11:09:07,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:07,767 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:07,767 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:07,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416 [2022-01-18 11:09:07,767 INFO L402 AbstractCegarLoop]: === Iteration 418 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:07,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:07,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1456458656, now seen corresponding path program 116 times [2022-01-18 11:09:07,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:07,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49579873] [2022-01-18 11:09:07,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:07,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:07,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:07,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:07,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49579873] [2022-01-18 11:09:07,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49579873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:07,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:07,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:07,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77674867] [2022-01-18 11:09:07,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:07,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:07,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:07,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:07,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:07,905 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:08,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:08,345 INFO L93 Difference]: Finished difference Result 8964 states and 23639 transitions. [2022-01-18 11:09:08,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:08,346 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:08,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:08,355 INFO L225 Difference]: With dead ends: 8964 [2022-01-18 11:09:08,355 INFO L226 Difference]: Without dead ends: 8485 [2022-01-18 11:09:08,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=331, Invalid=1075, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:08,356 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 261 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 2783 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:08,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 2783 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:08,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8485 states. [2022-01-18 11:09:08,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8485 to 7698. [2022-01-18 11:09:08,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:08,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-01-18 11:09:08,443 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-01-18 11:09:08,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:08,443 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-01-18 11:09:08,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:08,444 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-01-18 11:09:08,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:08,451 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:08,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:08,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417 [2022-01-18 11:09:08,451 INFO L402 AbstractCegarLoop]: === Iteration 419 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:08,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:08,451 INFO L85 PathProgramCache]: Analyzing trace with hash 171064462, now seen corresponding path program 117 times [2022-01-18 11:09:08,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:08,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703350652] [2022-01-18 11:09:08,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:08,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:08,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:08,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:08,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703350652] [2022-01-18 11:09:08,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703350652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:08,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:08,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:08,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298943072] [2022-01-18 11:09:08,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:08,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:08,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:08,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:08,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:08,561 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:08,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:08,959 INFO L93 Difference]: Finished difference Result 8898 states and 23462 transitions. [2022-01-18 11:09:08,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:09:08,960 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:08,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:08,969 INFO L225 Difference]: With dead ends: 8898 [2022-01-18 11:09:08,970 INFO L226 Difference]: Without dead ends: 8410 [2022-01-18 11:09:08,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=942, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:09:08,970 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 242 mSDsluCounter, 1995 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:08,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 2187 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:08,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8410 states. [2022-01-18 11:09:09,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8410 to 7686. [2022-01-18 11:09:09,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.64242029928432) internal successors, (20307), 7685 states have internal predecessors, (20307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:09,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20307 transitions. [2022-01-18 11:09:09,060 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20307 transitions. Word has length 109 [2022-01-18 11:09:09,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:09,060 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20307 transitions. [2022-01-18 11:09:09,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:09,060 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20307 transitions. [2022-01-18 11:09:09,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:09,068 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:09,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:09,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable418 [2022-01-18 11:09:09,068 INFO L402 AbstractCegarLoop]: === Iteration 420 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:09,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:09,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1111279638, now seen corresponding path program 118 times [2022-01-18 11:09:09,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:09,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233901381] [2022-01-18 11:09:09,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:09,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:09,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:09,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:09,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233901381] [2022-01-18 11:09:09,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233901381] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:09,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:09,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:09,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556573117] [2022-01-18 11:09:09,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:09,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:09,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:09,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:09,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:09,178 INFO L87 Difference]: Start difference. First operand 7686 states and 20307 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:09,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:09,902 INFO L93 Difference]: Finished difference Result 9261 states and 24416 transitions. [2022-01-18 11:09:09,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:09:09,902 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:09,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:09,914 INFO L225 Difference]: With dead ends: 9261 [2022-01-18 11:09:09,914 INFO L226 Difference]: Without dead ends: 8696 [2022-01-18 11:09:09,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=665, Invalid=2091, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:09:09,915 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 408 mSDsluCounter, 2772 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:09,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 2948 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:09,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8696 states. [2022-01-18 11:09:09,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8696 to 7690. [2022-01-18 11:09:09,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.641956041097672) internal successors, (20314), 7689 states have internal predecessors, (20314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:10,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20314 transitions. [2022-01-18 11:09:10,011 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20314 transitions. Word has length 109 [2022-01-18 11:09:10,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:10,011 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20314 transitions. [2022-01-18 11:09:10,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:10,011 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20314 transitions. [2022-01-18 11:09:10,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:10,019 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:10,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:10,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable419 [2022-01-18 11:09:10,019 INFO L402 AbstractCegarLoop]: === Iteration 421 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:10,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:10,020 INFO L85 PathProgramCache]: Analyzing trace with hash -246848576, now seen corresponding path program 119 times [2022-01-18 11:09:10,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:10,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087202461] [2022-01-18 11:09:10,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:10,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:10,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:10,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:10,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087202461] [2022-01-18 11:09:10,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087202461] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:10,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:10,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:10,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872518546] [2022-01-18 11:09:10,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:10,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:10,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:10,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:10,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:10,128 INFO L87 Difference]: Start difference. First operand 7690 states and 20314 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:10,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:10,658 INFO L93 Difference]: Finished difference Result 9136 states and 24087 transitions. [2022-01-18 11:09:10,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:09:10,659 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:10,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:10,668 INFO L225 Difference]: With dead ends: 9136 [2022-01-18 11:09:10,669 INFO L226 Difference]: Without dead ends: 8614 [2022-01-18 11:09:10,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=484, Invalid=1678, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:09:10,669 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 348 mSDsluCounter, 2246 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:10,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 2429 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:10,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8614 states. [2022-01-18 11:09:10,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8614 to 7694. [2022-01-18 11:09:10,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6414922656960873) internal successors, (20321), 7693 states have internal predecessors, (20321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:10,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20321 transitions. [2022-01-18 11:09:10,759 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20321 transitions. Word has length 109 [2022-01-18 11:09:10,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:10,760 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20321 transitions. [2022-01-18 11:09:10,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:10,760 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20321 transitions. [2022-01-18 11:09:10,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:10,767 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:10,767 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:10,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable420 [2022-01-18 11:09:10,767 INFO L402 AbstractCegarLoop]: === Iteration 422 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:10,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:10,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1804763926, now seen corresponding path program 120 times [2022-01-18 11:09:10,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:10,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142664512] [2022-01-18 11:09:10,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:10,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:10,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:10,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:10,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142664512] [2022-01-18 11:09:10,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142664512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:10,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:10,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:10,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287847430] [2022-01-18 11:09:10,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:10,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:10,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:10,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:10,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:10,878 INFO L87 Difference]: Start difference. First operand 7694 states and 20321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:11,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:11,285 INFO L93 Difference]: Finished difference Result 8972 states and 23657 transitions. [2022-01-18 11:09:11,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:11,285 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:11,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:11,295 INFO L225 Difference]: With dead ends: 8972 [2022-01-18 11:09:11,295 INFO L226 Difference]: Without dead ends: 8493 [2022-01-18 11:09:11,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1080, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:11,296 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 262 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 2365 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:11,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 2365 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:11,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8493 states. [2022-01-18 11:09:11,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8493 to 7698. [2022-01-18 11:09:11,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6410289723268807) internal successors, (20328), 7697 states have internal predecessors, (20328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:11,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20328 transitions. [2022-01-18 11:09:11,386 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20328 transitions. Word has length 109 [2022-01-18 11:09:11,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:11,386 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20328 transitions. [2022-01-18 11:09:11,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:11,386 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20328 transitions. [2022-01-18 11:09:11,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:11,394 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:11,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:11,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable421 [2022-01-18 11:09:11,394 INFO L402 AbstractCegarLoop]: === Iteration 423 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:11,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:11,394 INFO L85 PathProgramCache]: Analyzing trace with hash -177240808, now seen corresponding path program 121 times [2022-01-18 11:09:11,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:11,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462777189] [2022-01-18 11:09:11,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:11,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:11,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:11,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:11,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462777189] [2022-01-18 11:09:11,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462777189] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:11,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:11,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:11,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980553794] [2022-01-18 11:09:11,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:11,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:11,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:11,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:11,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:11,509 INFO L87 Difference]: Start difference. First operand 7698 states and 20328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:11,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:11,878 INFO L93 Difference]: Finished difference Result 8898 states and 23458 transitions. [2022-01-18 11:09:11,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:09:11,878 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:11,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:11,890 INFO L225 Difference]: With dead ends: 8898 [2022-01-18 11:09:11,890 INFO L226 Difference]: Without dead ends: 8406 [2022-01-18 11:09:11,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:09:11,891 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 249 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:11,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 2252 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:11,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8406 states. [2022-01-18 11:09:11,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8406 to 7682. [2022-01-18 11:09:11,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7681 states have (on average 2.642364275484963) internal successors, (20296), 7681 states have internal predecessors, (20296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:11,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20296 transitions. [2022-01-18 11:09:12,000 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20296 transitions. Word has length 109 [2022-01-18 11:09:12,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:12,000 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20296 transitions. [2022-01-18 11:09:12,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:12,000 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20296 transitions. [2022-01-18 11:09:12,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:12,007 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:12,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:12,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable422 [2022-01-18 11:09:12,008 INFO L402 AbstractCegarLoop]: === Iteration 424 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:12,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:12,008 INFO L85 PathProgramCache]: Analyzing trace with hash -758803116, now seen corresponding path program 122 times [2022-01-18 11:09:12,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:12,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177369064] [2022-01-18 11:09:12,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:12,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:12,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:12,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:12,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177369064] [2022-01-18 11:09:12,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177369064] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:12,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:12,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:12,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054122175] [2022-01-18 11:09:12,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:12,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:12,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:12,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:12,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:12,112 INFO L87 Difference]: Start difference. First operand 7682 states and 20296 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:12,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:12,752 INFO L93 Difference]: Finished difference Result 9142 states and 24070 transitions. [2022-01-18 11:09:12,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:09:12,753 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:12,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:12,763 INFO L225 Difference]: With dead ends: 9142 [2022-01-18 11:09:12,764 INFO L226 Difference]: Without dead ends: 8534 [2022-01-18 11:09:12,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=796, Invalid=2510, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:09:12,764 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 477 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:12,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [477 Valid, 2485 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:12,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8534 states. [2022-01-18 11:09:12,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8534 to 7686. [2022-01-18 11:09:12,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6418998048145736) internal successors, (20303), 7685 states have internal predecessors, (20303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:12,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20303 transitions. [2022-01-18 11:09:12,857 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20303 transitions. Word has length 109 [2022-01-18 11:09:12,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:12,857 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20303 transitions. [2022-01-18 11:09:12,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:12,857 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20303 transitions. [2022-01-18 11:09:12,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:12,865 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:12,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:12,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable423 [2022-01-18 11:09:12,865 INFO L402 AbstractCegarLoop]: === Iteration 425 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:12,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:12,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1265692440, now seen corresponding path program 123 times [2022-01-18 11:09:12,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:12,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725267558] [2022-01-18 11:09:12,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:12,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:12,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:12,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:12,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725267558] [2022-01-18 11:09:12,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725267558] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:12,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:12,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:12,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12861168] [2022-01-18 11:09:12,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:12,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:12,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:12,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:12,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:12,973 INFO L87 Difference]: Start difference. First operand 7686 states and 20303 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:13,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:13,623 INFO L93 Difference]: Finished difference Result 9037 states and 23796 transitions. [2022-01-18 11:09:13,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:09:13,623 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:13,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:13,635 INFO L225 Difference]: With dead ends: 9037 [2022-01-18 11:09:13,635 INFO L226 Difference]: Without dead ends: 8472 [2022-01-18 11:09:13,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=675, Invalid=2295, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:09:13,636 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 422 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 2357 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:13,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 2357 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:13,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8472 states. [2022-01-18 11:09:13,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8472 to 7690. [2022-01-18 11:09:13,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6414358174014825) internal successors, (20310), 7689 states have internal predecessors, (20310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:13,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20310 transitions. [2022-01-18 11:09:13,746 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20310 transitions. Word has length 109 [2022-01-18 11:09:13,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:13,746 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20310 transitions. [2022-01-18 11:09:13,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:13,746 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20310 transitions. [2022-01-18 11:09:13,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:13,754 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:13,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:13,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable424 [2022-01-18 11:09:13,754 INFO L402 AbstractCegarLoop]: === Iteration 426 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:13,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:13,754 INFO L85 PathProgramCache]: Analyzing trace with hash 2130123502, now seen corresponding path program 124 times [2022-01-18 11:09:13,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:13,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047525572] [2022-01-18 11:09:13,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:13,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:13,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:13,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:13,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047525572] [2022-01-18 11:09:13,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047525572] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:13,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:13,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:13,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007551673] [2022-01-18 11:09:13,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:13,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:13,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:13,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:13,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:13,863 INFO L87 Difference]: Start difference. First operand 7690 states and 20310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:14,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:14,377 INFO L93 Difference]: Finished difference Result 8932 states and 23522 transitions. [2022-01-18 11:09:14,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:09:14,377 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:14,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:14,387 INFO L225 Difference]: With dead ends: 8932 [2022-01-18 11:09:14,387 INFO L226 Difference]: Without dead ends: 8410 [2022-01-18 11:09:14,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=475, Invalid=1687, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:09:14,388 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 355 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:14,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 2399 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:14,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8410 states. [2022-01-18 11:09:14,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8410 to 7694. [2022-01-18 11:09:14,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6409723124918756) internal successors, (20317), 7693 states have internal predecessors, (20317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:14,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20317 transitions. [2022-01-18 11:09:14,478 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20317 transitions. Word has length 109 [2022-01-18 11:09:14,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:14,478 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20317 transitions. [2022-01-18 11:09:14,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:14,478 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20317 transitions. [2022-01-18 11:09:14,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:14,485 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:14,485 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:14,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable425 [2022-01-18 11:09:14,486 INFO L402 AbstractCegarLoop]: === Iteration 427 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:14,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:14,486 INFO L85 PathProgramCache]: Analyzing trace with hash 572208152, now seen corresponding path program 125 times [2022-01-18 11:09:14,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:14,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710792427] [2022-01-18 11:09:14,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:14,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:14,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:14,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:14,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710792427] [2022-01-18 11:09:14,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710792427] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:14,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:14,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:14,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586005648] [2022-01-18 11:09:14,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:14,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:14,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:14,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:14,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:14,612 INFO L87 Difference]: Start difference. First operand 7694 states and 20317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:15,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:15,010 INFO L93 Difference]: Finished difference Result 8808 states and 23202 transitions. [2022-01-18 11:09:15,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:15,011 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:15,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:15,020 INFO L225 Difference]: With dead ends: 8808 [2022-01-18 11:09:15,021 INFO L226 Difference]: Without dead ends: 8329 [2022-01-18 11:09:15,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=322, Invalid=1084, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:15,021 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 288 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 2337 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:15,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 2337 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:15,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8329 states. [2022-01-18 11:09:15,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8329 to 7698. [2022-01-18 11:09:15,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6405092893335067) internal successors, (20324), 7697 states have internal predecessors, (20324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:15,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20324 transitions. [2022-01-18 11:09:15,111 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20324 transitions. Word has length 109 [2022-01-18 11:09:15,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:15,112 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20324 transitions. [2022-01-18 11:09:15,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:15,112 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20324 transitions. [2022-01-18 11:09:15,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:15,119 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:15,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:15,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable426 [2022-01-18 11:09:15,119 INFO L402 AbstractCegarLoop]: === Iteration 428 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:15,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:15,120 INFO L85 PathProgramCache]: Analyzing trace with hash -2095236026, now seen corresponding path program 126 times [2022-01-18 11:09:15,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:15,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000251086] [2022-01-18 11:09:15,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:15,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:15,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:15,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:15,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000251086] [2022-01-18 11:09:15,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000251086] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:15,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:15,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:15,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192377988] [2022-01-18 11:09:15,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:15,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:15,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:15,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:15,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:15,231 INFO L87 Difference]: Start difference. First operand 7698 states and 20324 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:15,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:15,589 INFO L93 Difference]: Finished difference Result 8646 states and 22761 transitions. [2022-01-18 11:09:15,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:09:15,589 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:15,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:15,598 INFO L225 Difference]: With dead ends: 8646 [2022-01-18 11:09:15,598 INFO L226 Difference]: Without dead ends: 8122 [2022-01-18 11:09:15,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=289, Invalid=833, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:09:15,599 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 222 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2055 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:15,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 2055 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:15,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8122 states. [2022-01-18 11:09:15,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8122 to 7650. [2022-01-18 11:09:15,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7650 states, 7649 states have (on average 2.6434828082102237) internal successors, (20220), 7649 states have internal predecessors, (20220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:15,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7650 states to 7650 states and 20220 transitions. [2022-01-18 11:09:15,685 INFO L78 Accepts]: Start accepts. Automaton has 7650 states and 20220 transitions. Word has length 109 [2022-01-18 11:09:15,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:15,685 INFO L470 AbstractCegarLoop]: Abstraction has 7650 states and 20220 transitions. [2022-01-18 11:09:15,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:15,685 INFO L276 IsEmpty]: Start isEmpty. Operand 7650 states and 20220 transitions. [2022-01-18 11:09:15,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:15,692 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:15,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:15,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable427 [2022-01-18 11:09:15,692 INFO L402 AbstractCegarLoop]: === Iteration 429 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:15,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:15,693 INFO L85 PathProgramCache]: Analyzing trace with hash 533071862, now seen corresponding path program 127 times [2022-01-18 11:09:15,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:15,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909977339] [2022-01-18 11:09:15,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:15,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:15,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:15,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:15,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909977339] [2022-01-18 11:09:15,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909977339] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:15,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:15,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:15,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492128885] [2022-01-18 11:09:15,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:15,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:15,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:15,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:15,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:15,798 INFO L87 Difference]: Start difference. First operand 7650 states and 20220 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:16,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:16,609 INFO L93 Difference]: Finished difference Result 9046 states and 23741 transitions. [2022-01-18 11:09:16,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 11:09:16,610 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:16,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:16,618 INFO L225 Difference]: With dead ends: 9046 [2022-01-18 11:09:16,619 INFO L226 Difference]: Without dead ends: 8163 [2022-01-18 11:09:16,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1234 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=999, Invalid=3291, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 11:09:16,619 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 618 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 3418 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:16,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [618 Valid, 3418 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:16,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8163 states. [2022-01-18 11:09:16,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8163 to 7375. [2022-01-18 11:09:16,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7375 states, 7374 states have (on average 2.6471385950637374) internal successors, (19520), 7374 states have internal predecessors, (19520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:16,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7375 states to 7375 states and 19520 transitions. [2022-01-18 11:09:16,703 INFO L78 Accepts]: Start accepts. Automaton has 7375 states and 19520 transitions. Word has length 109 [2022-01-18 11:09:16,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:16,704 INFO L470 AbstractCegarLoop]: Abstraction has 7375 states and 19520 transitions. [2022-01-18 11:09:16,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:16,704 INFO L276 IsEmpty]: Start isEmpty. Operand 7375 states and 19520 transitions. [2022-01-18 11:09:16,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:16,711 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:16,711 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:16,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable428 [2022-01-18 11:09:16,712 INFO L402 AbstractCegarLoop]: === Iteration 430 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:16,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:16,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1937111454, now seen corresponding path program 128 times [2022-01-18 11:09:16,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:16,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756325118] [2022-01-18 11:09:16,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:16,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:16,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:16,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:16,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756325118] [2022-01-18 11:09:16,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756325118] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:16,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:16,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:16,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690322633] [2022-01-18 11:09:16,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:16,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:16,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:16,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:16,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:16,815 INFO L87 Difference]: Start difference. First operand 7375 states and 19520 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:17,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:17,538 INFO L93 Difference]: Finished difference Result 8883 states and 23436 transitions. [2022-01-18 11:09:17,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 11:09:17,538 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:17,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:17,549 INFO L225 Difference]: With dead ends: 8883 [2022-01-18 11:09:17,549 INFO L226 Difference]: Without dead ends: 8275 [2022-01-18 11:09:17,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1148 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=850, Invalid=3056, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 11:09:17,550 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 488 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 3170 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:17,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 3170 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:17,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8275 states. [2022-01-18 11:09:17,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8275 to 7379. [2022-01-18 11:09:17,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7379 states, 7378 states have (on average 2.646652209270805) internal successors, (19527), 7378 states have internal predecessors, (19527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:17,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7379 states to 7379 states and 19527 transitions. [2022-01-18 11:09:17,658 INFO L78 Accepts]: Start accepts. Automaton has 7379 states and 19527 transitions. Word has length 109 [2022-01-18 11:09:17,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:17,658 INFO L470 AbstractCegarLoop]: Abstraction has 7379 states and 19527 transitions. [2022-01-18 11:09:17,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:17,658 INFO L276 IsEmpty]: Start isEmpty. Operand 7379 states and 19527 transitions. [2022-01-18 11:09:17,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:17,666 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:17,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:17,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable429 [2022-01-18 11:09:17,667 INFO L402 AbstractCegarLoop]: === Iteration 431 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:17,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:17,667 INFO L85 PathProgramCache]: Analyzing trace with hash -333360286, now seen corresponding path program 129 times [2022-01-18 11:09:17,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:17,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453419791] [2022-01-18 11:09:17,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:17,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:17,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:17,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:17,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453419791] [2022-01-18 11:09:17,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453419791] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:17,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:17,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:17,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867157282] [2022-01-18 11:09:17,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:17,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:17,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:17,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:17,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:17,776 INFO L87 Difference]: Start difference. First operand 7379 states and 19527 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:18,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:18,419 INFO L93 Difference]: Finished difference Result 8758 states and 23107 transitions. [2022-01-18 11:09:18,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:09:18,420 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:18,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:18,429 INFO L225 Difference]: With dead ends: 8758 [2022-01-18 11:09:18,429 INFO L226 Difference]: Without dead ends: 8193 [2022-01-18 11:09:18,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=620, Invalid=2242, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:09:18,430 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 386 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:18,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 2654 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:18,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8193 states. [2022-01-18 11:09:18,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8193 to 7383. [2022-01-18 11:09:18,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7383 states, 7382 states have (on average 2.646166350582498) internal successors, (19534), 7382 states have internal predecessors, (19534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:18,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7383 states to 7383 states and 19534 transitions. [2022-01-18 11:09:18,515 INFO L78 Accepts]: Start accepts. Automaton has 7383 states and 19534 transitions. Word has length 109 [2022-01-18 11:09:18,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:18,516 INFO L470 AbstractCegarLoop]: Abstraction has 7383 states and 19534 transitions. [2022-01-18 11:09:18,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:18,516 INFO L276 IsEmpty]: Start isEmpty. Operand 7383 states and 19534 transitions. [2022-01-18 11:09:18,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:18,523 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:18,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:18,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable430 [2022-01-18 11:09:18,523 INFO L402 AbstractCegarLoop]: === Iteration 432 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:18,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:18,523 INFO L85 PathProgramCache]: Analyzing trace with hash 531070776, now seen corresponding path program 130 times [2022-01-18 11:09:18,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:18,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131031336] [2022-01-18 11:09:18,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:18,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:18,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:18,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:18,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131031336] [2022-01-18 11:09:18,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131031336] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:18,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:18,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:18,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629250689] [2022-01-18 11:09:18,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:18,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:18,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:18,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:18,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:18,627 INFO L87 Difference]: Start difference. First operand 7383 states and 19534 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:19,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:19,121 INFO L93 Difference]: Finished difference Result 8633 states and 22778 transitions. [2022-01-18 11:09:19,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:09:19,121 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:19,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:19,130 INFO L225 Difference]: With dead ends: 8633 [2022-01-18 11:09:19,131 INFO L226 Difference]: Without dead ends: 8111 [2022-01-18 11:09:19,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=443, Invalid=1627, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:09:19,131 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 313 mSDsluCounter, 2350 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:19,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 2583 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:19,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8111 states. [2022-01-18 11:09:19,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8111 to 7387. [2022-01-18 11:09:19,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7387 states, 7386 states have (on average 2.6456810181424317) internal successors, (19541), 7386 states have internal predecessors, (19541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:19,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7387 states to 7387 states and 19541 transitions. [2022-01-18 11:09:19,218 INFO L78 Accepts]: Start accepts. Automaton has 7387 states and 19541 transitions. Word has length 109 [2022-01-18 11:09:19,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:19,218 INFO L470 AbstractCegarLoop]: Abstraction has 7387 states and 19541 transitions. [2022-01-18 11:09:19,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:19,218 INFO L276 IsEmpty]: Start isEmpty. Operand 7387 states and 19541 transitions. [2022-01-18 11:09:19,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:19,225 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:19,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:19,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable431 [2022-01-18 11:09:19,226 INFO L402 AbstractCegarLoop]: === Iteration 433 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:19,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:19,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1026844574, now seen corresponding path program 131 times [2022-01-18 11:09:19,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:19,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586748613] [2022-01-18 11:09:19,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:19,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:19,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:19,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:19,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586748613] [2022-01-18 11:09:19,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586748613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:19,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:19,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:19,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234986133] [2022-01-18 11:09:19,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:19,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:19,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:19,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:19,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:19,330 INFO L87 Difference]: Start difference. First operand 7387 states and 19541 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:19,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:19,714 INFO L93 Difference]: Finished difference Result 8469 states and 22348 transitions. [2022-01-18 11:09:19,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:19,715 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:19,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:19,724 INFO L225 Difference]: With dead ends: 8469 [2022-01-18 11:09:19,724 INFO L226 Difference]: Without dead ends: 7990 [2022-01-18 11:09:19,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:19,724 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 240 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 2752 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:19,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 2752 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:19,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7990 states. [2022-01-18 11:09:19,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7990 to 7391. [2022-01-18 11:09:19,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7391 states, 7390 states have (on average 2.6451962110960756) internal successors, (19548), 7390 states have internal predecessors, (19548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:19,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 19548 transitions. [2022-01-18 11:09:19,810 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 19548 transitions. Word has length 109 [2022-01-18 11:09:19,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:19,810 INFO L470 AbstractCegarLoop]: Abstraction has 7391 states and 19548 transitions. [2022-01-18 11:09:19,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:19,810 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 19548 transitions. [2022-01-18 11:09:19,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:19,817 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:19,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:19,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable432 [2022-01-18 11:09:19,817 INFO L402 AbstractCegarLoop]: === Iteration 434 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:19,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:19,818 INFO L85 PathProgramCache]: Analyzing trace with hash 600678544, now seen corresponding path program 132 times [2022-01-18 11:09:19,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:19,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229889356] [2022-01-18 11:09:19,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:19,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:19,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:19,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:19,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229889356] [2022-01-18 11:09:19,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229889356] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:19,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:19,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:19,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530397882] [2022-01-18 11:09:19,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:19,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:19,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:19,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:19,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:19,919 INFO L87 Difference]: Start difference. First operand 7391 states and 19548 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:20,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:20,293 INFO L93 Difference]: Finished difference Result 8387 states and 22127 transitions. [2022-01-18 11:09:20,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 11:09:20,294 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:20,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:20,303 INFO L225 Difference]: With dead ends: 8387 [2022-01-18 11:09:20,303 INFO L226 Difference]: Without dead ends: 7869 [2022-01-18 11:09:20,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=934, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:09:20,304 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 220 mSDsluCounter, 2897 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:20,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 3102 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:20,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7869 states. [2022-01-18 11:09:20,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7869 to 7349. [2022-01-18 11:09:20,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7349 states, 7348 states have (on average 2.647387044093631) internal successors, (19453), 7348 states have internal predecessors, (19453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:20,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7349 states to 7349 states and 19453 transitions. [2022-01-18 11:09:20,397 INFO L78 Accepts]: Start accepts. Automaton has 7349 states and 19453 transitions. Word has length 109 [2022-01-18 11:09:20,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:20,397 INFO L470 AbstractCegarLoop]: Abstraction has 7349 states and 19453 transitions. [2022-01-18 11:09:20,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:20,397 INFO L276 IsEmpty]: Start isEmpty. Operand 7349 states and 19453 transitions. [2022-01-18 11:09:20,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:20,404 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:20,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:20,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable433 [2022-01-18 11:09:20,404 INFO L402 AbstractCegarLoop]: === Iteration 435 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:20,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:20,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1160979608, now seen corresponding path program 133 times [2022-01-18 11:09:20,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:20,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729203193] [2022-01-18 11:09:20,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:20,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:20,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:20,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:20,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729203193] [2022-01-18 11:09:20,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729203193] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:20,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:20,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:20,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635745997] [2022-01-18 11:09:20,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:20,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:20,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:20,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:20,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:20,522 INFO L87 Difference]: Start difference. First operand 7349 states and 19453 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:20,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:20,947 INFO L93 Difference]: Finished difference Result 8579 states and 22667 transitions. [2022-01-18 11:09:20,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:09:20,947 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:20,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:20,958 INFO L225 Difference]: With dead ends: 8579 [2022-01-18 11:09:20,958 INFO L226 Difference]: Without dead ends: 8100 [2022-01-18 11:09:20,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=1020, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:09:20,959 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 240 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 2838 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:20,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 2838 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:20,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8100 states. [2022-01-18 11:09:21,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8100 to 7369. [2022-01-18 11:09:21,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7369 states, 7368 states have (on average 2.6471226927252984) internal successors, (19504), 7368 states have internal predecessors, (19504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:21,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19504 transitions. [2022-01-18 11:09:21,063 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19504 transitions. Word has length 109 [2022-01-18 11:09:21,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:21,063 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19504 transitions. [2022-01-18 11:09:21,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:21,063 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19504 transitions. [2022-01-18 11:09:21,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:21,071 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:21,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:21,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable434 [2022-01-18 11:09:21,071 INFO L402 AbstractCegarLoop]: === Iteration 436 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:21,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:21,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1506464570, now seen corresponding path program 134 times [2022-01-18 11:09:21,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:21,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451541255] [2022-01-18 11:09:21,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:21,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:21,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:21,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:21,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:21,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451541255] [2022-01-18 11:09:21,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451541255] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:21,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:21,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:21,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490521843] [2022-01-18 11:09:21,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:21,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:21,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:21,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:21,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:21,179 INFO L87 Difference]: Start difference. First operand 7369 states and 19504 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:21,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:21,645 INFO L93 Difference]: Finished difference Result 8537 states and 22556 transitions. [2022-01-18 11:09:21,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:21,646 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:21,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:21,656 INFO L225 Difference]: With dead ends: 8537 [2022-01-18 11:09:21,656 INFO L226 Difference]: Without dead ends: 8057 [2022-01-18 11:09:21,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=389, Invalid=1171, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 11:09:21,657 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 221 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:21,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2845 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:21,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8057 states. [2022-01-18 11:09:21,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8057 to 7365. [2022-01-18 11:09:21,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7365 states, 7364 states have (on average 2.6470668115154807) internal successors, (19493), 7364 states have internal predecessors, (19493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:21,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19493 transitions. [2022-01-18 11:09:21,747 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19493 transitions. Word has length 109 [2022-01-18 11:09:21,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:21,747 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19493 transitions. [2022-01-18 11:09:21,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:21,747 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19493 transitions. [2022-01-18 11:09:21,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:21,754 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:21,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:21,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable435 [2022-01-18 11:09:21,754 INFO L402 AbstractCegarLoop]: === Iteration 437 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:21,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:21,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1667445386, now seen corresponding path program 135 times [2022-01-18 11:09:21,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:21,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043365550] [2022-01-18 11:09:21,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:21,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:21,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:21,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:21,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043365550] [2022-01-18 11:09:21,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043365550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:21,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:21,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:21,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128058236] [2022-01-18 11:09:21,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:21,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:21,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:21,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:21,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:21,859 INFO L87 Difference]: Start difference. First operand 7365 states and 19493 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:22,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:22,340 INFO L93 Difference]: Finished difference Result 8625 states and 22778 transitions. [2022-01-18 11:09:22,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-18 11:09:22,340 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:22,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:22,350 INFO L225 Difference]: With dead ends: 8625 [2022-01-18 11:09:22,351 INFO L226 Difference]: Without dead ends: 8105 [2022-01-18 11:09:22,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=500, Invalid=1392, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:09:22,351 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 289 mSDsluCounter, 2452 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:22,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 2666 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:22,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8105 states. [2022-01-18 11:09:22,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8105 to 7361. [2022-01-18 11:09:22,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7361 states, 7360 states have (on average 2.6470108695652175) internal successors, (19482), 7360 states have internal predecessors, (19482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:22,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 19482 transitions. [2022-01-18 11:09:22,443 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 19482 transitions. Word has length 109 [2022-01-18 11:09:22,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:22,443 INFO L470 AbstractCegarLoop]: Abstraction has 7361 states and 19482 transitions. [2022-01-18 11:09:22,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:22,443 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 19482 transitions. [2022-01-18 11:09:22,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:22,450 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:22,450 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:22,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable436 [2022-01-18 11:09:22,451 INFO L402 AbstractCegarLoop]: === Iteration 438 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:22,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:22,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1740075110, now seen corresponding path program 136 times [2022-01-18 11:09:22,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:22,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549458349] [2022-01-18 11:09:22,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:22,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:22,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:22,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:22,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549458349] [2022-01-18 11:09:22,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549458349] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:22,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:22,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:22,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704796403] [2022-01-18 11:09:22,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:22,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:22,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:22,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:22,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:22,555 INFO L87 Difference]: Start difference. First operand 7361 states and 19482 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:23,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:23,058 INFO L93 Difference]: Finished difference Result 8739 states and 23078 transitions. [2022-01-18 11:09:23,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:09:23,058 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:23,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:23,068 INFO L225 Difference]: With dead ends: 8739 [2022-01-18 11:09:23,068 INFO L226 Difference]: Without dead ends: 8217 [2022-01-18 11:09:23,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=453, Invalid=1617, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:09:23,068 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 328 mSDsluCounter, 3000 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 3206 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:23,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 3206 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:23,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8217 states. [2022-01-18 11:09:23,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8217 to 7365. [2022-01-18 11:09:23,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7365 states, 7364 states have (on average 2.6465236284627918) internal successors, (19489), 7364 states have internal predecessors, (19489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:23,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19489 transitions. [2022-01-18 11:09:23,155 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19489 transitions. Word has length 109 [2022-01-18 11:09:23,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:23,155 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19489 transitions. [2022-01-18 11:09:23,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:23,156 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19489 transitions. [2022-01-18 11:09:23,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:23,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:23,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:23,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable437 [2022-01-18 11:09:23,163 INFO L402 AbstractCegarLoop]: === Iteration 439 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:23,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:23,163 INFO L85 PathProgramCache]: Analyzing trace with hash 182159760, now seen corresponding path program 137 times [2022-01-18 11:09:23,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:23,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363327654] [2022-01-18 11:09:23,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:23,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:23,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:23,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:23,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363327654] [2022-01-18 11:09:23,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363327654] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:23,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:23,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:23,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816985159] [2022-01-18 11:09:23,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:23,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:23,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:23,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:23,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:23,272 INFO L87 Difference]: Start difference. First operand 7365 states and 19489 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:23,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:23,689 INFO L93 Difference]: Finished difference Result 8575 states and 22648 transitions. [2022-01-18 11:09:23,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:23,690 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:23,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:23,699 INFO L225 Difference]: With dead ends: 8575 [2022-01-18 11:09:23,699 INFO L226 Difference]: Without dead ends: 8096 [2022-01-18 11:09:23,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:23,700 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 259 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 2499 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:23,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 2499 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:23,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8096 states. [2022-01-18 11:09:23,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8096 to 7369. [2022-01-18 11:09:23,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7369 states, 7368 states have (on average 2.6460369163952224) internal successors, (19496), 7368 states have internal predecessors, (19496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:23,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19496 transitions. [2022-01-18 11:09:23,787 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19496 transitions. Word has length 109 [2022-01-18 11:09:23,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:23,787 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19496 transitions. [2022-01-18 11:09:23,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:23,788 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19496 transitions. [2022-01-18 11:09:23,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:23,795 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:23,795 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:23,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable438 [2022-01-18 11:09:23,795 INFO L402 AbstractCegarLoop]: === Iteration 440 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:23,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:23,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1809682878, now seen corresponding path program 138 times [2022-01-18 11:09:23,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:23,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200452211] [2022-01-18 11:09:23,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:23,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:23,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:23,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:23,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200452211] [2022-01-18 11:09:23,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200452211] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:23,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:23,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:23,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946319699] [2022-01-18 11:09:23,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:23,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:23,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:23,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:23,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:23,903 INFO L87 Difference]: Start difference. First operand 7369 states and 19496 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:24,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:24,327 INFO L93 Difference]: Finished difference Result 8509 states and 22471 transitions. [2022-01-18 11:09:24,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:09:24,327 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:24,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:24,337 INFO L225 Difference]: With dead ends: 8509 [2022-01-18 11:09:24,337 INFO L226 Difference]: Without dead ends: 8021 [2022-01-18 11:09:24,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:09:24,337 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 238 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 2455 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:24,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 2455 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:24,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8021 states. [2022-01-18 11:09:24,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8021 to 7357. [2022-01-18 11:09:24,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7357 states, 7356 states have (on average 2.6469548667754212) internal successors, (19471), 7356 states have internal predecessors, (19471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:24,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7357 states to 7357 states and 19471 transitions. [2022-01-18 11:09:24,423 INFO L78 Accepts]: Start accepts. Automaton has 7357 states and 19471 transitions. Word has length 109 [2022-01-18 11:09:24,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:24,424 INFO L470 AbstractCegarLoop]: Abstraction has 7357 states and 19471 transitions. [2022-01-18 11:09:24,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:24,424 INFO L276 IsEmpty]: Start isEmpty. Operand 7357 states and 19471 transitions. [2022-01-18 11:09:24,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:24,431 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:24,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:24,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable439 [2022-01-18 11:09:24,431 INFO L402 AbstractCegarLoop]: === Iteration 441 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:24,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:24,431 INFO L85 PathProgramCache]: Analyzing trace with hash 527338778, now seen corresponding path program 139 times [2022-01-18 11:09:24,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:24,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885919963] [2022-01-18 11:09:24,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:24,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:24,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:24,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:24,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885919963] [2022-01-18 11:09:24,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885919963] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:24,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:24,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:24,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068196480] [2022-01-18 11:09:24,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:24,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:24,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:24,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:24,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:24,542 INFO L87 Difference]: Start difference. First operand 7357 states and 19471 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:25,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:25,224 INFO L93 Difference]: Finished difference Result 8872 states and 23425 transitions. [2022-01-18 11:09:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:09:25,225 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:25,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:25,236 INFO L225 Difference]: With dead ends: 8872 [2022-01-18 11:09:25,236 INFO L226 Difference]: Without dead ends: 8307 [2022-01-18 11:09:25,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=628, Invalid=2128, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:09:25,237 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 401 mSDsluCounter, 2601 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 2821 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:25,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 2821 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:25,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8307 states. [2022-01-18 11:09:25,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8307 to 7361. [2022-01-18 11:09:25,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7361 states, 7360 states have (on average 2.646467391304348) internal successors, (19478), 7360 states have internal predecessors, (19478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:25,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 19478 transitions. [2022-01-18 11:09:25,332 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 19478 transitions. Word has length 109 [2022-01-18 11:09:25,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:25,333 INFO L470 AbstractCegarLoop]: Abstraction has 7361 states and 19478 transitions. [2022-01-18 11:09:25,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:25,333 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 19478 transitions. [2022-01-18 11:09:25,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:25,340 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:25,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:25,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable440 [2022-01-18 11:09:25,340 INFO L402 AbstractCegarLoop]: === Iteration 442 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:25,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:25,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1391769840, now seen corresponding path program 140 times [2022-01-18 11:09:25,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:25,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714520769] [2022-01-18 11:09:25,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:25,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:25,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:25,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:25,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:25,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714520769] [2022-01-18 11:09:25,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714520769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:25,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:25,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:25,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715665067] [2022-01-18 11:09:25,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:25,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:25,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:25,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:25,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:25,447 INFO L87 Difference]: Start difference. First operand 7361 states and 19478 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:25,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:25,967 INFO L93 Difference]: Finished difference Result 8747 states and 23096 transitions. [2022-01-18 11:09:25,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:09:25,967 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:25,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:25,977 INFO L225 Difference]: With dead ends: 8747 [2022-01-18 11:09:25,977 INFO L226 Difference]: Without dead ends: 8225 [2022-01-18 11:09:25,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=462, Invalid=1608, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:09:25,977 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 332 mSDsluCounter, 2061 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 2294 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:25,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 2294 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:25,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8225 states. [2022-01-18 11:09:26,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8225 to 7365. [2022-01-18 11:09:26,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7365 states, 7364 states have (on average 2.6459804454101032) internal successors, (19485), 7364 states have internal predecessors, (19485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:26,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19485 transitions. [2022-01-18 11:09:26,070 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19485 transitions. Word has length 109 [2022-01-18 11:09:26,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:26,070 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19485 transitions. [2022-01-18 11:09:26,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:26,071 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19485 transitions. [2022-01-18 11:09:26,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:26,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:26,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:26,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable441 [2022-01-18 11:09:26,079 INFO L402 AbstractCegarLoop]: === Iteration 443 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:26,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:26,079 INFO L85 PathProgramCache]: Analyzing trace with hash -166145510, now seen corresponding path program 141 times [2022-01-18 11:09:26,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:26,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163424758] [2022-01-18 11:09:26,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:26,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:26,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:26,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:26,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163424758] [2022-01-18 11:09:26,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163424758] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:26,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:26,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:26,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092313967] [2022-01-18 11:09:26,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:26,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:26,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:26,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:26,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:26,187 INFO L87 Difference]: Start difference. First operand 7365 states and 19485 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:26,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:26,601 INFO L93 Difference]: Finished difference Result 8583 states and 22666 transitions. [2022-01-18 11:09:26,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:26,601 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:26,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:26,610 INFO L225 Difference]: With dead ends: 8583 [2022-01-18 11:09:26,611 INFO L226 Difference]: Without dead ends: 8104 [2022-01-18 11:09:26,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:26,611 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 254 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 2691 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:26,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 2691 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:26,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8104 states. [2022-01-18 11:09:26,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8104 to 7369. [2022-01-18 11:09:26,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7369 states, 7368 states have (on average 2.6454940282301846) internal successors, (19492), 7368 states have internal predecessors, (19492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:26,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19492 transitions. [2022-01-18 11:09:26,702 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19492 transitions. Word has length 109 [2022-01-18 11:09:26,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:26,702 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19492 transitions. [2022-01-18 11:09:26,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:26,703 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19492 transitions. [2022-01-18 11:09:26,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:26,710 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:26,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:26,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable442 [2022-01-18 11:09:26,710 INFO L402 AbstractCegarLoop]: === Iteration 444 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:26,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:26,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1461377608, now seen corresponding path program 142 times [2022-01-18 11:09:26,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:26,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129199972] [2022-01-18 11:09:26,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:26,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:26,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:26,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:26,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129199972] [2022-01-18 11:09:26,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129199972] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:26,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:26,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:26,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783436874] [2022-01-18 11:09:26,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:26,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:26,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:26,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:26,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:26,815 INFO L87 Difference]: Start difference. First operand 7369 states and 19492 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:27,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:27,245 INFO L93 Difference]: Finished difference Result 8509 states and 22467 transitions. [2022-01-18 11:09:27,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:09:27,245 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:27,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:27,255 INFO L225 Difference]: With dead ends: 8509 [2022-01-18 11:09:27,255 INFO L226 Difference]: Without dead ends: 8017 [2022-01-18 11:09:27,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:27,256 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 228 mSDsluCounter, 2812 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:27,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 3019 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:27,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8017 states. [2022-01-18 11:09:27,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8017 to 7353. [2022-01-18 11:09:27,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7353 states, 7352 states have (on average 2.64689880304679) internal successors, (19460), 7352 states have internal predecessors, (19460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:27,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7353 states to 7353 states and 19460 transitions. [2022-01-18 11:09:27,346 INFO L78 Accepts]: Start accepts. Automaton has 7353 states and 19460 transitions. Word has length 109 [2022-01-18 11:09:27,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:27,346 INFO L470 AbstractCegarLoop]: Abstraction has 7353 states and 19460 transitions. [2022-01-18 11:09:27,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:27,346 INFO L276 IsEmpty]: Start isEmpty. Operand 7353 states and 19460 transitions. [2022-01-18 11:09:27,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:27,353 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:27,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:27,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable443 [2022-01-18 11:09:27,353 INFO L402 AbstractCegarLoop]: === Iteration 445 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:27,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:27,354 INFO L85 PathProgramCache]: Analyzing trace with hash 879815300, now seen corresponding path program 143 times [2022-01-18 11:09:27,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:27,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463253124] [2022-01-18 11:09:27,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:27,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:27,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:27,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:27,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463253124] [2022-01-18 11:09:27,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463253124] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:27,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:27,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:27,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095373] [2022-01-18 11:09:27,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:27,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:27,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:27,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:27,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:27,461 INFO L87 Difference]: Start difference. First operand 7353 states and 19460 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:28,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:28,199 INFO L93 Difference]: Finished difference Result 8861 states and 23376 transitions. [2022-01-18 11:09:28,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 11:09:28,199 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:28,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:28,209 INFO L225 Difference]: With dead ends: 8861 [2022-01-18 11:09:28,209 INFO L226 Difference]: Without dead ends: 8253 [2022-01-18 11:09:28,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=849, Invalid=2933, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 11:09:28,210 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 476 mSDsluCounter, 3078 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 3286 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:28,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 3286 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:28,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8253 states. [2022-01-18 11:09:28,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8253 to 7357. [2022-01-18 11:09:28,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7357 states, 7356 states have (on average 2.646411092985318) internal successors, (19467), 7356 states have internal predecessors, (19467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:28,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7357 states to 7357 states and 19467 transitions. [2022-01-18 11:09:28,303 INFO L78 Accepts]: Start accepts. Automaton has 7357 states and 19467 transitions. Word has length 109 [2022-01-18 11:09:28,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:28,303 INFO L470 AbstractCegarLoop]: Abstraction has 7357 states and 19467 transitions. [2022-01-18 11:09:28,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:28,303 INFO L276 IsEmpty]: Start isEmpty. Operand 7357 states and 19467 transitions. [2022-01-18 11:09:28,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:28,311 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:28,311 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:28,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable444 [2022-01-18 11:09:28,311 INFO L402 AbstractCegarLoop]: === Iteration 446 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:28,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:28,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1390656440, now seen corresponding path program 144 times [2022-01-18 11:09:28,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:28,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640210258] [2022-01-18 11:09:28,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:28,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:28,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:28,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:28,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640210258] [2022-01-18 11:09:28,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640210258] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:28,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:28,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:28,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901340034] [2022-01-18 11:09:28,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:28,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:28,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:28,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:28,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:28,422 INFO L87 Difference]: Start difference. First operand 7357 states and 19467 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:29,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:29,099 INFO L93 Difference]: Finished difference Result 8744 states and 23069 transitions. [2022-01-18 11:09:29,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:09:29,100 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:29,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:29,110 INFO L225 Difference]: With dead ends: 8744 [2022-01-18 11:09:29,110 INFO L226 Difference]: Without dead ends: 8179 [2022-01-18 11:09:29,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=634, Invalid=2228, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:09:29,111 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 395 mSDsluCounter, 2334 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 2564 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:29,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [395 Valid, 2564 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:29,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8179 states. [2022-01-18 11:09:29,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8179 to 7361. [2022-01-18 11:09:29,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7361 states, 7360 states have (on average 2.6459239130434784) internal successors, (19474), 7360 states have internal predecessors, (19474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:29,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 19474 transitions. [2022-01-18 11:09:29,199 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 19474 transitions. Word has length 109 [2022-01-18 11:09:29,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:29,199 INFO L470 AbstractCegarLoop]: Abstraction has 7361 states and 19474 transitions. [2022-01-18 11:09:29,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:29,199 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 19474 transitions. [2022-01-18 11:09:29,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:29,206 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:29,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:29,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable445 [2022-01-18 11:09:29,206 INFO L402 AbstractCegarLoop]: === Iteration 447 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:29,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:29,207 INFO L85 PathProgramCache]: Analyzing trace with hash -526225378, now seen corresponding path program 145 times [2022-01-18 11:09:29,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:29,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407037393] [2022-01-18 11:09:29,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:29,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:29,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:29,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:29,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407037393] [2022-01-18 11:09:29,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407037393] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:29,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:29,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:29,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315477614] [2022-01-18 11:09:29,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:29,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:29,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:29,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:29,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:29,312 INFO L87 Difference]: Start difference. First operand 7361 states and 19474 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:29,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:29,814 INFO L93 Difference]: Finished difference Result 8627 states and 22762 transitions. [2022-01-18 11:09:29,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:09:29,814 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:29,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:29,823 INFO L225 Difference]: With dead ends: 8627 [2022-01-18 11:09:29,823 INFO L226 Difference]: Without dead ends: 8105 [2022-01-18 11:09:29,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1708, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:09:29,824 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 323 mSDsluCounter, 2769 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 2978 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:29,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 2978 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:29,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8105 states. [2022-01-18 11:09:29,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8105 to 7365. [2022-01-18 11:09:29,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7365 states, 7364 states have (on average 2.6454372623574143) internal successors, (19481), 7364 states have internal predecessors, (19481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:29,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19481 transitions. [2022-01-18 11:09:29,909 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19481 transitions. Word has length 109 [2022-01-18 11:09:29,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:29,909 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19481 transitions. [2022-01-18 11:09:29,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:29,909 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19481 transitions. [2022-01-18 11:09:29,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:29,916 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:29,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:29,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable446 [2022-01-18 11:09:29,917 INFO L402 AbstractCegarLoop]: === Iteration 448 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:29,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:29,917 INFO L85 PathProgramCache]: Analyzing trace with hash -2084140728, now seen corresponding path program 146 times [2022-01-18 11:09:29,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:29,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858886533] [2022-01-18 11:09:29,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:29,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:30,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:30,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:30,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858886533] [2022-01-18 11:09:30,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858886533] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:30,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:30,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:30,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895850437] [2022-01-18 11:09:30,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:30,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:30,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:30,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:30,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:30,027 INFO L87 Difference]: Start difference. First operand 7365 states and 19481 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:30,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:30,442 INFO L93 Difference]: Finished difference Result 8479 states and 22376 transitions. [2022-01-18 11:09:30,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:30,443 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:30,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:30,451 INFO L225 Difference]: With dead ends: 8479 [2022-01-18 11:09:30,452 INFO L226 Difference]: Without dead ends: 8000 [2022-01-18 11:09:30,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=1088, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:30,452 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 249 mSDsluCounter, 2872 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3075 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:30,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 3075 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:30,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8000 states. [2022-01-18 11:09:30,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8000 to 7369. [2022-01-18 11:09:30,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7369 states, 7368 states have (on average 2.6449511400651464) internal successors, (19488), 7368 states have internal predecessors, (19488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:30,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19488 transitions. [2022-01-18 11:09:30,536 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19488 transitions. Word has length 109 [2022-01-18 11:09:30,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:30,536 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19488 transitions. [2022-01-18 11:09:30,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:30,536 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19488 transitions. [2022-01-18 11:09:30,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:30,546 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:30,546 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:30,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable447 [2022-01-18 11:09:30,547 INFO L402 AbstractCegarLoop]: === Iteration 449 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:30,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:30,547 INFO L85 PathProgramCache]: Analyzing trace with hash -456617610, now seen corresponding path program 147 times [2022-01-18 11:09:30,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:30,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234632932] [2022-01-18 11:09:30,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:30,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:30,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:30,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:30,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234632932] [2022-01-18 11:09:30,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234632932] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:30,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:30,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:30,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189741835] [2022-01-18 11:09:30,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:30,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:30,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:30,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:30,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:30,662 INFO L87 Difference]: Start difference. First operand 7369 states and 19488 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:31,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:31,057 INFO L93 Difference]: Finished difference Result 8365 states and 22067 transitions. [2022-01-18 11:09:31,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:09:31,058 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:31,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:31,067 INFO L225 Difference]: With dead ends: 8365 [2022-01-18 11:09:31,067 INFO L226 Difference]: Without dead ends: 7843 [2022-01-18 11:09:31,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=928, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:09:31,067 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 220 mSDsluCounter, 2356 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2569 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:31,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2569 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:31,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7843 states. [2022-01-18 11:09:31,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7843 to 7323. [2022-01-18 11:09:31,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7323 states, 7322 states have (on average 2.647637257579896) internal successors, (19386), 7322 states have internal predecessors, (19386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:31,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7323 states to 7323 states and 19386 transitions. [2022-01-18 11:09:31,155 INFO L78 Accepts]: Start accepts. Automaton has 7323 states and 19386 transitions. Word has length 109 [2022-01-18 11:09:31,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:31,155 INFO L470 AbstractCegarLoop]: Abstraction has 7323 states and 19386 transitions. [2022-01-18 11:09:31,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:31,155 INFO L276 IsEmpty]: Start isEmpty. Operand 7323 states and 19386 transitions. [2022-01-18 11:09:31,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:31,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:31,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:31,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable448 [2022-01-18 11:09:31,163 INFO L402 AbstractCegarLoop]: === Iteration 450 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:31,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:31,163 INFO L85 PathProgramCache]: Analyzing trace with hash -993153118, now seen corresponding path program 148 times [2022-01-18 11:09:31,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:31,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93780173] [2022-01-18 11:09:31,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:31,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:31,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:31,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:31,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93780173] [2022-01-18 11:09:31,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93780173] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:31,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:31,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:31,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396518492] [2022-01-18 11:09:31,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:31,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:31,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:31,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:31,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:31,273 INFO L87 Difference]: Start difference. First operand 7323 states and 19386 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:31,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:31,680 INFO L93 Difference]: Finished difference Result 8633 states and 22820 transitions. [2022-01-18 11:09:31,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:09:31,681 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:31,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:31,692 INFO L225 Difference]: With dead ends: 8633 [2022-01-18 11:09:31,692 INFO L226 Difference]: Without dead ends: 8154 [2022-01-18 11:09:31,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=950, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:09:31,693 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 234 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:31,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 2205 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:31,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8154 states. [2022-01-18 11:09:31,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8154 to 7347. [2022-01-18 11:09:31,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6474271712496598) internal successors, (19448), 7346 states have internal predecessors, (19448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:31,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19448 transitions. [2022-01-18 11:09:31,801 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19448 transitions. Word has length 109 [2022-01-18 11:09:31,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:31,801 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19448 transitions. [2022-01-18 11:09:31,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:31,802 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19448 transitions. [2022-01-18 11:09:31,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:31,809 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:31,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:31,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable449 [2022-01-18 11:09:31,809 INFO L402 AbstractCegarLoop]: === Iteration 451 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:31,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:31,810 INFO L85 PathProgramCache]: Analyzing trace with hash 634370000, now seen corresponding path program 149 times [2022-01-18 11:09:31,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:31,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270982963] [2022-01-18 11:09:31,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:31,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:31,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:31,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:31,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270982963] [2022-01-18 11:09:31,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270982963] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:31,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:31,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:31,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256273407] [2022-01-18 11:09:31,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:31,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:31,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:31,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:31,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:31,915 INFO L87 Difference]: Start difference. First operand 7347 states and 19448 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:32,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:32,379 INFO L93 Difference]: Finished difference Result 8599 states and 22731 transitions. [2022-01-18 11:09:32,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:32,379 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:32,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:32,389 INFO L225 Difference]: With dead ends: 8599 [2022-01-18 11:09:32,390 INFO L226 Difference]: Without dead ends: 8119 [2022-01-18 11:09:32,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=369, Invalid=1191, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 11:09:32,390 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 210 mSDsluCounter, 2519 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:32,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 2725 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:32,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8119 states. [2022-01-18 11:09:32,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8119 to 7343. [2022-01-18 11:09:32,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6473712884772542) internal successors, (19437), 7342 states have internal predecessors, (19437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:32,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19437 transitions. [2022-01-18 11:09:32,488 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19437 transitions. Word has length 109 [2022-01-18 11:09:32,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:32,488 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19437 transitions. [2022-01-18 11:09:32,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:32,488 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19437 transitions. [2022-01-18 11:09:32,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:32,496 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:32,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:32,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable450 [2022-01-18 11:09:32,496 INFO L402 AbstractCegarLoop]: === Iteration 452 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:32,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:32,496 INFO L85 PathProgramCache]: Analyzing trace with hash -486687340, now seen corresponding path program 150 times [2022-01-18 11:09:32,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:32,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000700590] [2022-01-18 11:09:32,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:32,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:32,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:32,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000700590] [2022-01-18 11:09:32,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000700590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:32,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:32,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:32,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303598649] [2022-01-18 11:09:32,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:32,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:32,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:32,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:32,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:32,603 INFO L87 Difference]: Start difference. First operand 7343 states and 19437 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:33,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:33,170 INFO L93 Difference]: Finished difference Result 8635 states and 22826 transitions. [2022-01-18 11:09:33,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:09:33,170 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:33,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:33,179 INFO L225 Difference]: With dead ends: 8635 [2022-01-18 11:09:33,179 INFO L226 Difference]: Without dead ends: 8115 [2022-01-18 11:09:33,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=545, Invalid=1711, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 11:09:33,180 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 280 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 2639 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:33,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 2639 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:33,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8115 states. [2022-01-18 11:09:33,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8115 to 7339. [2022-01-18 11:09:33,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.647315344780594) internal successors, (19426), 7338 states have internal predecessors, (19426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:33,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19426 transitions. [2022-01-18 11:09:33,293 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19426 transitions. Word has length 109 [2022-01-18 11:09:33,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:33,293 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19426 transitions. [2022-01-18 11:09:33,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:33,293 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19426 transitions. [2022-01-18 11:09:33,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:33,300 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:33,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:33,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable451 [2022-01-18 11:09:33,300 INFO L402 AbstractCegarLoop]: === Iteration 453 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:33,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:33,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1011822876, now seen corresponding path program 151 times [2022-01-18 11:09:33,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:33,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825334504] [2022-01-18 11:09:33,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:33,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:33,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:33,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:33,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825334504] [2022-01-18 11:09:33,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825334504] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:33,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:33,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:33,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061606923] [2022-01-18 11:09:33,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:33,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:33,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:33,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:33,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:33,403 INFO L87 Difference]: Start difference. First operand 7339 states and 19426 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:33,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:33,992 INFO L93 Difference]: Finished difference Result 8751 states and 23117 transitions. [2022-01-18 11:09:33,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 11:09:33,992 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:33,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:34,001 INFO L225 Difference]: With dead ends: 8751 [2022-01-18 11:09:34,001 INFO L226 Difference]: Without dead ends: 8191 [2022-01-18 11:09:34,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=684, Invalid=1968, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:09:34,002 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 336 mSDsluCounter, 2753 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 2959 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:34,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 2959 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:34,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8191 states. [2022-01-18 11:09:34,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8191 to 7335. [2022-01-18 11:09:34,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7335 states, 7334 states have (on average 2.6472593400599944) internal successors, (19415), 7334 states have internal predecessors, (19415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:34,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19415 transitions. [2022-01-18 11:09:34,087 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19415 transitions. Word has length 109 [2022-01-18 11:09:34,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:34,087 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19415 transitions. [2022-01-18 11:09:34,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:34,088 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19415 transitions. [2022-01-18 11:09:34,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:34,095 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:34,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:34,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable452 [2022-01-18 11:09:34,095 INFO L402 AbstractCegarLoop]: === Iteration 454 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:34,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:34,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1202136280, now seen corresponding path program 152 times [2022-01-18 11:09:34,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:34,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988809784] [2022-01-18 11:09:34,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:34,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:34,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:34,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:34,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988809784] [2022-01-18 11:09:34,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988809784] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:34,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:34,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:34,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035689931] [2022-01-18 11:09:34,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:34,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:34,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:34,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:34,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:34,203 INFO L87 Difference]: Start difference. First operand 7335 states and 19415 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:34,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:34,605 INFO L93 Difference]: Finished difference Result 8701 states and 23003 transitions. [2022-01-18 11:09:34,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:09:34,605 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:34,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:34,615 INFO L225 Difference]: With dead ends: 8701 [2022-01-18 11:09:34,615 INFO L226 Difference]: Without dead ends: 8222 [2022-01-18 11:09:34,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:09:34,616 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 241 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 2497 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:34,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 2497 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:34,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8222 states. [2022-01-18 11:09:34,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8222 to 7347. [2022-01-18 11:09:34,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6468826572284234) internal successors, (19444), 7346 states have internal predecessors, (19444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:34,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19444 transitions. [2022-01-18 11:09:34,702 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19444 transitions. Word has length 109 [2022-01-18 11:09:34,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:34,702 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19444 transitions. [2022-01-18 11:09:34,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:34,702 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19444 transitions. [2022-01-18 11:09:34,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:34,709 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:34,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:34,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable453 [2022-01-18 11:09:34,709 INFO L402 AbstractCegarLoop]: === Iteration 455 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:34,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:34,710 INFO L85 PathProgramCache]: Analyzing trace with hash 425386838, now seen corresponding path program 153 times [2022-01-18 11:09:34,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:34,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564221212] [2022-01-18 11:09:34,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:34,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:34,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:34,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:34,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564221212] [2022-01-18 11:09:34,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564221212] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:34,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:34,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:34,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915746072] [2022-01-18 11:09:34,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:34,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:34,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:34,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:34,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:34,819 INFO L87 Difference]: Start difference. First operand 7347 states and 19444 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:35,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:35,253 INFO L93 Difference]: Finished difference Result 8659 states and 22892 transitions. [2022-01-18 11:09:35,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:35,254 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:35,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:35,264 INFO L225 Difference]: With dead ends: 8659 [2022-01-18 11:09:35,264 INFO L226 Difference]: Without dead ends: 8179 [2022-01-18 11:09:35,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=370, Invalid=1112, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:09:35,265 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 236 mSDsluCounter, 1750 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:35,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 1976 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:35,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8179 states. [2022-01-18 11:09:35,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8179 to 7343. [2022-01-18 11:09:35,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6468264777989647) internal successors, (19433), 7342 states have internal predecessors, (19433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:35,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19433 transitions. [2022-01-18 11:09:35,360 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19433 transitions. Word has length 109 [2022-01-18 11:09:35,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:35,360 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19433 transitions. [2022-01-18 11:09:35,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:35,360 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19433 transitions. [2022-01-18 11:09:35,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:35,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:35,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:35,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable454 [2022-01-18 11:09:35,368 INFO L402 AbstractCegarLoop]: === Iteration 456 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:35,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:35,368 INFO L85 PathProgramCache]: Analyzing trace with hash -695670502, now seen corresponding path program 154 times [2022-01-18 11:09:35,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:35,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102100083] [2022-01-18 11:09:35,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:35,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:35,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:35,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:35,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102100083] [2022-01-18 11:09:35,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102100083] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:35,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:35,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:35,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405118413] [2022-01-18 11:09:35,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:35,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:35,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:35,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:35,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:35,474 INFO L87 Difference]: Start difference. First operand 7343 states and 19433 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:36,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:36,033 INFO L93 Difference]: Finished difference Result 8787 states and 23224 transitions. [2022-01-18 11:09:36,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:09:36,033 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:36,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:36,044 INFO L225 Difference]: With dead ends: 8787 [2022-01-18 11:09:36,044 INFO L226 Difference]: Without dead ends: 8267 [2022-01-18 11:09:36,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=531, Invalid=1631, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:09:36,044 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 298 mSDsluCounter, 2749 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 2957 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:36,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 2957 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:36,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8267 states. [2022-01-18 11:09:36,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8267 to 7339. [2022-01-18 11:09:36,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.6467702371218316) internal successors, (19422), 7338 states have internal predecessors, (19422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:36,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19422 transitions. [2022-01-18 11:09:36,142 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19422 transitions. Word has length 109 [2022-01-18 11:09:36,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:36,142 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19422 transitions. [2022-01-18 11:09:36,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:36,142 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19422 transitions. [2022-01-18 11:09:36,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:36,150 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:36,150 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:36,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable455 [2022-01-18 11:09:36,150 INFO L402 AbstractCegarLoop]: === Iteration 457 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:36,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:36,150 INFO L85 PathProgramCache]: Analyzing trace with hash -623040778, now seen corresponding path program 155 times [2022-01-18 11:09:36,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:36,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845078388] [2022-01-18 11:09:36,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:36,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:36,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:36,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:36,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845078388] [2022-01-18 11:09:36,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845078388] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:36,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:36,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:36,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699681102] [2022-01-18 11:09:36,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:36,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:36,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:36,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:36,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:36,259 INFO L87 Difference]: Start difference. First operand 7339 states and 19422 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:36,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:36,786 INFO L93 Difference]: Finished difference Result 8789 states and 23216 transitions. [2022-01-18 11:09:36,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:09:36,786 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:36,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:36,796 INFO L225 Difference]: With dead ends: 8789 [2022-01-18 11:09:36,796 INFO L226 Difference]: Without dead ends: 8267 [2022-01-18 11:09:36,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=458, Invalid=1434, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:09:36,796 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 306 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:36,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 2666 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:36,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8267 states. [2022-01-18 11:09:36,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8267 to 7343. [2022-01-18 11:09:36,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6462816671206757) internal successors, (19429), 7342 states have internal predecessors, (19429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:36,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19429 transitions. [2022-01-18 11:09:36,883 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19429 transitions. Word has length 109 [2022-01-18 11:09:36,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:36,884 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19429 transitions. [2022-01-18 11:09:36,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:36,884 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19429 transitions. [2022-01-18 11:09:36,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:36,891 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:36,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:36,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable456 [2022-01-18 11:09:36,891 INFO L402 AbstractCegarLoop]: === Iteration 458 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:36,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:36,891 INFO L85 PathProgramCache]: Analyzing trace with hash 2114011168, now seen corresponding path program 156 times [2022-01-18 11:09:36,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:36,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233122495] [2022-01-18 11:09:36,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:36,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:37,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:37,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:37,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233122495] [2022-01-18 11:09:37,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233122495] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:37,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:37,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:37,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414600564] [2022-01-18 11:09:37,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:37,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:37,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:37,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:37,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:37,003 INFO L87 Difference]: Start difference. First operand 7343 states and 19429 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:37,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:37,434 INFO L93 Difference]: Finished difference Result 8641 states and 22830 transitions. [2022-01-18 11:09:37,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:37,434 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:37,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:37,446 INFO L225 Difference]: With dead ends: 8641 [2022-01-18 11:09:37,446 INFO L226 Difference]: Without dead ends: 8162 [2022-01-18 11:09:37,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:37,446 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 233 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:37,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2377 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:37,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8162 states. [2022-01-18 11:09:37,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8162 to 7347. [2022-01-18 11:09:37,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6457936291859516) internal successors, (19436), 7346 states have internal predecessors, (19436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:37,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19436 transitions. [2022-01-18 11:09:37,536 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19436 transitions. Word has length 109 [2022-01-18 11:09:37,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:37,536 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19436 transitions. [2022-01-18 11:09:37,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:37,536 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19436 transitions. [2022-01-18 11:09:37,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:37,543 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:37,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:37,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable457 [2022-01-18 11:09:37,544 INFO L402 AbstractCegarLoop]: === Iteration 459 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:37,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:37,544 INFO L85 PathProgramCache]: Analyzing trace with hash -553433010, now seen corresponding path program 157 times [2022-01-18 11:09:37,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:37,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154579129] [2022-01-18 11:09:37,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:37,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:37,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:37,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:37,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154579129] [2022-01-18 11:09:37,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154579129] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:37,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:37,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:37,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077014442] [2022-01-18 11:09:37,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:37,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:37,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:37,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:37,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:37,658 INFO L87 Difference]: Start difference. First operand 7347 states and 19436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:38,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:38,073 INFO L93 Difference]: Finished difference Result 8559 states and 22609 transitions. [2022-01-18 11:09:38,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:09:38,074 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:38,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:38,083 INFO L225 Difference]: With dead ends: 8559 [2022-01-18 11:09:38,083 INFO L226 Difference]: Without dead ends: 8067 [2022-01-18 11:09:38,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=354, Invalid=1128, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:09:38,083 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 211 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2563 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:38,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 2563 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:38,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8067 states. [2022-01-18 11:09:38,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8067 to 7331. [2022-01-18 11:09:38,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7331 states, 7330 states have (on average 2.6472032742155527) internal successors, (19404), 7330 states have internal predecessors, (19404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:38,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7331 states to 7331 states and 19404 transitions. [2022-01-18 11:09:38,169 INFO L78 Accepts]: Start accepts. Automaton has 7331 states and 19404 transitions. Word has length 109 [2022-01-18 11:09:38,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:38,169 INFO L470 AbstractCegarLoop]: Abstraction has 7331 states and 19404 transitions. [2022-01-18 11:09:38,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:38,170 INFO L276 IsEmpty]: Start isEmpty. Operand 7331 states and 19404 transitions. [2022-01-18 11:09:38,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:38,177 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:38,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:38,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable458 [2022-01-18 11:09:38,177 INFO L402 AbstractCegarLoop]: === Iteration 460 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:38,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:38,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1250172384, now seen corresponding path program 158 times [2022-01-18 11:09:38,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:38,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308841809] [2022-01-18 11:09:38,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:38,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:38,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:38,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:38,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308841809] [2022-01-18 11:09:38,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308841809] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:38,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:38,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:38,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333611018] [2022-01-18 11:09:38,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:38,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:38,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:38,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:38,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:38,307 INFO L87 Difference]: Start difference. First operand 7331 states and 19404 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:38,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:38,735 INFO L93 Difference]: Finished difference Result 8737 states and 23102 transitions. [2022-01-18 11:09:38,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:09:38,735 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:38,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:38,745 INFO L225 Difference]: With dead ends: 8737 [2022-01-18 11:09:38,746 INFO L226 Difference]: Without dead ends: 8258 [2022-01-18 11:09:38,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:09:38,746 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 242 mSDsluCounter, 2735 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2931 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:38,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 2931 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:38,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8258 states. [2022-01-18 11:09:38,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8258 to 7347. [2022-01-18 11:09:38,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6468826572284234) internal successors, (19444), 7346 states have internal predecessors, (19444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:38,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19444 transitions. [2022-01-18 11:09:38,841 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19444 transitions. Word has length 109 [2022-01-18 11:09:38,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:38,841 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19444 transitions. [2022-01-18 11:09:38,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:38,842 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19444 transitions. [2022-01-18 11:09:38,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:38,849 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:38,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:38,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable459 [2022-01-18 11:09:38,849 INFO L402 AbstractCegarLoop]: === Iteration 461 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:38,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:38,850 INFO L85 PathProgramCache]: Analyzing trace with hash 377350734, now seen corresponding path program 159 times [2022-01-18 11:09:38,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:38,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469659296] [2022-01-18 11:09:38,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:38,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:38,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:38,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:38,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469659296] [2022-01-18 11:09:38,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469659296] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:38,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:38,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:38,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537274526] [2022-01-18 11:09:38,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:38,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:38,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:38,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:38,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:38,958 INFO L87 Difference]: Start difference. First operand 7347 states and 19444 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:39,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:39,443 INFO L93 Difference]: Finished difference Result 8695 states and 22991 transitions. [2022-01-18 11:09:39,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:39,443 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:39,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:39,455 INFO L225 Difference]: With dead ends: 8695 [2022-01-18 11:09:39,455 INFO L226 Difference]: Without dead ends: 8215 [2022-01-18 11:09:39,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 11:09:39,455 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 224 mSDsluCounter, 2697 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:39,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2903 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:39,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8215 states. [2022-01-18 11:09:39,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8215 to 7343. [2022-01-18 11:09:39,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6468264777989647) internal successors, (19433), 7342 states have internal predecessors, (19433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:39,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19433 transitions. [2022-01-18 11:09:39,555 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19433 transitions. Word has length 109 [2022-01-18 11:09:39,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:39,556 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19433 transitions. [2022-01-18 11:09:39,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:39,556 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19433 transitions. [2022-01-18 11:09:39,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:39,563 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:39,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:39,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable460 [2022-01-18 11:09:39,563 INFO L402 AbstractCegarLoop]: === Iteration 462 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:39,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:39,563 INFO L85 PathProgramCache]: Analyzing trace with hash -743706606, now seen corresponding path program 160 times [2022-01-18 11:09:39,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:39,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737153387] [2022-01-18 11:09:39,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:39,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:39,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:39,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:39,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737153387] [2022-01-18 11:09:39,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737153387] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:39,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:39,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:39,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491303897] [2022-01-18 11:09:39,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:39,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:39,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:39,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:39,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:39,676 INFO L87 Difference]: Start difference. First operand 7343 states and 19433 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:40,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:40,220 INFO L93 Difference]: Finished difference Result 8803 states and 23268 transitions. [2022-01-18 11:09:40,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:09:40,220 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:40,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:40,230 INFO L225 Difference]: With dead ends: 8803 [2022-01-18 11:09:40,230 INFO L226 Difference]: Without dead ends: 8283 [2022-01-18 11:09:40,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=518, Invalid=1552, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:09:40,230 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 293 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:40,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 2787 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:40,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8283 states. [2022-01-18 11:09:40,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8283 to 7339. [2022-01-18 11:09:40,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.6467702371218316) internal successors, (19422), 7338 states have internal predecessors, (19422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:40,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19422 transitions. [2022-01-18 11:09:40,317 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19422 transitions. Word has length 109 [2022-01-18 11:09:40,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:40,317 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19422 transitions. [2022-01-18 11:09:40,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:40,317 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19422 transitions. [2022-01-18 11:09:40,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:40,324 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:40,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:40,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable461 [2022-01-18 11:09:40,325 INFO L402 AbstractCegarLoop]: === Iteration 463 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:40,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:40,325 INFO L85 PathProgramCache]: Analyzing trace with hash -671076882, now seen corresponding path program 161 times [2022-01-18 11:09:40,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:40,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857203826] [2022-01-18 11:09:40,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:40,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:40,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:40,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:40,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857203826] [2022-01-18 11:09:40,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857203826] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:40,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:40,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:40,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011560788] [2022-01-18 11:09:40,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:40,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:40,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:40,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:40,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:40,432 INFO L87 Difference]: Start difference. First operand 7339 states and 19422 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:40,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:40,954 INFO L93 Difference]: Finished difference Result 8901 states and 23524 transitions. [2022-01-18 11:09:40,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:09:40,954 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:40,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:40,964 INFO L225 Difference]: With dead ends: 8901 [2022-01-18 11:09:40,964 INFO L226 Difference]: Without dead ends: 8379 [2022-01-18 11:09:40,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:09:40,965 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 317 mSDsluCounter, 2663 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 2866 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:40,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 2866 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:40,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8379 states. [2022-01-18 11:09:41,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8379 to 7343. [2022-01-18 11:09:41,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6462816671206757) internal successors, (19429), 7342 states have internal predecessors, (19429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:41,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19429 transitions. [2022-01-18 11:09:41,053 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19429 transitions. Word has length 109 [2022-01-18 11:09:41,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:41,053 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19429 transitions. [2022-01-18 11:09:41,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:41,053 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19429 transitions. [2022-01-18 11:09:41,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:41,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:41,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:41,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable462 [2022-01-18 11:09:41,061 INFO L402 AbstractCegarLoop]: === Iteration 464 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:41,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:41,061 INFO L85 PathProgramCache]: Analyzing trace with hash 2065975064, now seen corresponding path program 162 times [2022-01-18 11:09:41,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:41,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654018466] [2022-01-18 11:09:41,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:41,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:41,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:41,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:41,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654018466] [2022-01-18 11:09:41,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654018466] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:41,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:41,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:41,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982886060] [2022-01-18 11:09:41,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:41,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:41,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:41,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:41,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:41,174 INFO L87 Difference]: Start difference. First operand 7343 states and 19429 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:41,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:41,607 INFO L93 Difference]: Finished difference Result 8737 states and 23094 transitions. [2022-01-18 11:09:41,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:41,608 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:41,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:41,655 INFO L225 Difference]: With dead ends: 8737 [2022-01-18 11:09:41,655 INFO L226 Difference]: Without dead ends: 8258 [2022-01-18 11:09:41,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:41,655 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 242 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2510 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:41,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 2510 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:41,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8258 states. [2022-01-18 11:09:41,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8258 to 7347. [2022-01-18 11:09:41,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6457936291859516) internal successors, (19436), 7346 states have internal predecessors, (19436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:41,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19436 transitions. [2022-01-18 11:09:41,750 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19436 transitions. Word has length 109 [2022-01-18 11:09:41,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:41,750 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19436 transitions. [2022-01-18 11:09:41,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:41,751 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19436 transitions. [2022-01-18 11:09:41,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:41,759 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:41,759 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:41,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable463 [2022-01-18 11:09:41,759 INFO L402 AbstractCegarLoop]: === Iteration 465 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:41,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:41,760 INFO L85 PathProgramCache]: Analyzing trace with hash -601469114, now seen corresponding path program 163 times [2022-01-18 11:09:41,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:41,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548376276] [2022-01-18 11:09:41,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:41,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:41,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:41,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:41,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548376276] [2022-01-18 11:09:41,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548376276] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:41,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:41,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:41,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166345915] [2022-01-18 11:09:41,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:41,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:41,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:41,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:41,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:41,870 INFO L87 Difference]: Start difference. First operand 7347 states and 19436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:42,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:42,288 INFO L93 Difference]: Finished difference Result 8671 states and 22917 transitions. [2022-01-18 11:09:42,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:09:42,289 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:42,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:42,298 INFO L225 Difference]: With dead ends: 8671 [2022-01-18 11:09:42,298 INFO L226 Difference]: Without dead ends: 8183 [2022-01-18 11:09:42,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:09:42,299 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 226 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2562 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:42,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2562 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:42,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8183 states. [2022-01-18 11:09:42,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8183 to 7335. [2022-01-18 11:09:42,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7335 states, 7334 states have (on average 2.6467139350968094) internal successors, (19411), 7334 states have internal predecessors, (19411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:42,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19411 transitions. [2022-01-18 11:09:42,384 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19411 transitions. Word has length 109 [2022-01-18 11:09:42,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:42,384 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19411 transitions. [2022-01-18 11:09:42,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:42,384 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19411 transitions. [2022-01-18 11:09:42,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:42,391 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:42,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:42,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable464 [2022-01-18 11:09:42,391 INFO L402 AbstractCegarLoop]: === Iteration 466 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:42,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:42,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1883813214, now seen corresponding path program 164 times [2022-01-18 11:09:42,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:42,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898582615] [2022-01-18 11:09:42,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:42,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:42,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:42,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:42,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898582615] [2022-01-18 11:09:42,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898582615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:42,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:42,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:42,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367966437] [2022-01-18 11:09:42,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:42,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:42,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:42,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:42,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:42,507 INFO L87 Difference]: Start difference. First operand 7335 states and 19411 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:43,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:43,171 INFO L93 Difference]: Finished difference Result 8922 states and 23563 transitions. [2022-01-18 11:09:43,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:09:43,172 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:43,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:43,182 INFO L225 Difference]: With dead ends: 8922 [2022-01-18 11:09:43,183 INFO L226 Difference]: Without dead ends: 8357 [2022-01-18 11:09:43,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=636, Invalid=2016, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:09:43,183 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 380 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 2500 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:43,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 2500 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:43,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8357 states. [2022-01-18 11:09:43,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8357 to 7339. [2022-01-18 11:09:43,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.646225129463069) internal successors, (19418), 7338 states have internal predecessors, (19418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:43,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19418 transitions. [2022-01-18 11:09:43,276 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19418 transitions. Word has length 109 [2022-01-18 11:09:43,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:43,276 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19418 transitions. [2022-01-18 11:09:43,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:43,276 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19418 transitions. [2022-01-18 11:09:43,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:43,283 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:43,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:43,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable465 [2022-01-18 11:09:43,283 INFO L402 AbstractCegarLoop]: === Iteration 467 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:43,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:43,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1019382152, now seen corresponding path program 165 times [2022-01-18 11:09:43,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:43,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7099080] [2022-01-18 11:09:43,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:43,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:43,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:43,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:43,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7099080] [2022-01-18 11:09:43,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7099080] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:43,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:43,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:43,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829549721] [2022-01-18 11:09:43,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:43,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:43,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:43,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:43,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:43,392 INFO L87 Difference]: Start difference. First operand 7339 states and 19418 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:43,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:43,946 INFO L93 Difference]: Finished difference Result 8805 states and 23256 transitions. [2022-01-18 11:09:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:09:43,946 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:43,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:43,957 INFO L225 Difference]: With dead ends: 8805 [2022-01-18 11:09:43,957 INFO L226 Difference]: Without dead ends: 8283 [2022-01-18 11:09:43,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=485, Invalid=1677, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:09:43,957 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 309 mSDsluCounter, 2852 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:43,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 3050 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:43,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8283 states. [2022-01-18 11:09:44,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8283 to 7343. [2022-01-18 11:09:44,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.645736856442386) internal successors, (19425), 7342 states have internal predecessors, (19425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:44,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19425 transitions. [2022-01-18 11:09:44,053 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19425 transitions. Word has length 109 [2022-01-18 11:09:44,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:44,053 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19425 transitions. [2022-01-18 11:09:44,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:44,054 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19425 transitions. [2022-01-18 11:09:44,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:44,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:44,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:44,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable466 [2022-01-18 11:09:44,062 INFO L402 AbstractCegarLoop]: === Iteration 468 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:44,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:44,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1717669794, now seen corresponding path program 166 times [2022-01-18 11:09:44,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:44,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20881722] [2022-01-18 11:09:44,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:44,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:44,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:44,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:44,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20881722] [2022-01-18 11:09:44,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20881722] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:44,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:44,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:44,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754731515] [2022-01-18 11:09:44,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:44,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:44,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:44,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:44,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:44,173 INFO L87 Difference]: Start difference. First operand 7343 states and 19425 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:44,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:44,573 INFO L93 Difference]: Finished difference Result 8657 states and 22870 transitions. [2022-01-18 11:09:44,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:44,573 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:44,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:44,583 INFO L225 Difference]: With dead ends: 8657 [2022-01-18 11:09:44,583 INFO L226 Difference]: Without dead ends: 8178 [2022-01-18 11:09:44,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:44,583 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 246 mSDsluCounter, 1922 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:44,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2139 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:44,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8178 states. [2022-01-18 11:09:44,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8178 to 7347. [2022-01-18 11:09:44,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6452491151647153) internal successors, (19432), 7346 states have internal predecessors, (19432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:44,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19432 transitions. [2022-01-18 11:09:44,670 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19432 transitions. Word has length 109 [2022-01-18 11:09:44,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:44,670 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19432 transitions. [2022-01-18 11:09:44,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:44,670 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19432 transitions. [2022-01-18 11:09:44,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:44,677 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:44,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:44,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable467 [2022-01-18 11:09:44,677 INFO L402 AbstractCegarLoop]: === Iteration 469 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:44,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:44,677 INFO L85 PathProgramCache]: Analyzing trace with hash -949774384, now seen corresponding path program 167 times [2022-01-18 11:09:44,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:44,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143840280] [2022-01-18 11:09:44,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:44,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:44,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:44,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:44,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143840280] [2022-01-18 11:09:44,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143840280] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:44,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:44,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:44,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136351698] [2022-01-18 11:09:44,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:44,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:44,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:44,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:44,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:44,783 INFO L87 Difference]: Start difference. First operand 7347 states and 19432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:45,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:45,190 INFO L93 Difference]: Finished difference Result 8559 states and 22605 transitions. [2022-01-18 11:09:45,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:09:45,191 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:45,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:45,200 INFO L225 Difference]: With dead ends: 8559 [2022-01-18 11:09:45,200 INFO L226 Difference]: Without dead ends: 8063 [2022-01-18 11:09:45,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:45,200 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 209 mSDsluCounter, 2668 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:45,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 2868 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:45,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8063 states. [2022-01-18 11:09:45,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8063 to 7327. [2022-01-18 11:09:45,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7327 states, 7326 states have (on average 2.6471471471471473) internal successors, (19393), 7326 states have internal predecessors, (19393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:45,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7327 states to 7327 states and 19393 transitions. [2022-01-18 11:09:45,285 INFO L78 Accepts]: Start accepts. Automaton has 7327 states and 19393 transitions. Word has length 109 [2022-01-18 11:09:45,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:45,285 INFO L470 AbstractCegarLoop]: Abstraction has 7327 states and 19393 transitions. [2022-01-18 11:09:45,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:45,285 INFO L276 IsEmpty]: Start isEmpty. Operand 7327 states and 19393 transitions. [2022-01-18 11:09:45,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:45,292 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:45,292 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:45,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable468 [2022-01-18 11:09:45,292 INFO L402 AbstractCegarLoop]: === Iteration 470 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:45,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:45,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1941281456, now seen corresponding path program 168 times [2022-01-18 11:09:45,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:45,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461591678] [2022-01-18 11:09:45,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:45,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:45,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:45,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:45,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461591678] [2022-01-18 11:09:45,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461591678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:45,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:45,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:45,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974727669] [2022-01-18 11:09:45,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:45,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:45,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:45,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:45,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:45,408 INFO L87 Difference]: Start difference. First operand 7327 states and 19393 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:45,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:45,820 INFO L93 Difference]: Finished difference Result 8593 states and 22706 transitions. [2022-01-18 11:09:45,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:09:45,820 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:45,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:45,829 INFO L225 Difference]: With dead ends: 8593 [2022-01-18 11:09:45,829 INFO L226 Difference]: Without dead ends: 8114 [2022-01-18 11:09:45,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:09:45,830 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 236 mSDsluCounter, 2274 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2481 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:45,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2481 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:45,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8114 states. [2022-01-18 11:09:45,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8114 to 7347. [2022-01-18 11:09:45,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6468826572284234) internal successors, (19444), 7346 states have internal predecessors, (19444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:45,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19444 transitions. [2022-01-18 11:09:45,913 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19444 transitions. Word has length 109 [2022-01-18 11:09:45,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:45,913 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19444 transitions. [2022-01-18 11:09:45,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:45,913 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19444 transitions. [2022-01-18 11:09:45,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:45,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:45,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:45,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable469 [2022-01-18 11:09:45,920 INFO L402 AbstractCegarLoop]: === Iteration 471 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:45,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:45,920 INFO L85 PathProgramCache]: Analyzing trace with hash -726162722, now seen corresponding path program 169 times [2022-01-18 11:09:45,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:45,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181451415] [2022-01-18 11:09:45,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:45,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:45,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:46,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:46,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:46,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181451415] [2022-01-18 11:09:46,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181451415] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:46,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:46,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:46,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108565765] [2022-01-18 11:09:46,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:46,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:46,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:46,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:46,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:46,035 INFO L87 Difference]: Start difference. First operand 7347 states and 19444 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:46,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:46,489 INFO L93 Difference]: Finished difference Result 8551 states and 22595 transitions. [2022-01-18 11:09:46,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:46,490 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:46,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:46,499 INFO L225 Difference]: With dead ends: 8551 [2022-01-18 11:09:46,499 INFO L226 Difference]: Without dead ends: 8071 [2022-01-18 11:09:46,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=378, Invalid=1104, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:09:46,500 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 221 mSDsluCounter, 2072 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:46,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2290 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:46,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8071 states. [2022-01-18 11:09:46,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8071 to 7343. [2022-01-18 11:09:46,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6468264777989647) internal successors, (19433), 7342 states have internal predecessors, (19433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:46,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19433 transitions. [2022-01-18 11:09:46,593 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19433 transitions. Word has length 109 [2022-01-18 11:09:46,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:46,593 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19433 transitions. [2022-01-18 11:09:46,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:46,593 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19433 transitions. [2022-01-18 11:09:46,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:46,601 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:46,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:46,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable470 [2022-01-18 11:09:46,601 INFO L402 AbstractCegarLoop]: === Iteration 472 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:46,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:46,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1847220062, now seen corresponding path program 170 times [2022-01-18 11:09:46,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:46,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464222012] [2022-01-18 11:09:46,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:46,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:46,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:46,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:46,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464222012] [2022-01-18 11:09:46,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464222012] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:46,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:46,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:46,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535373547] [2022-01-18 11:09:46,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:46,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:46,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:46,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:46,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:46,715 INFO L87 Difference]: Start difference. First operand 7343 states and 19433 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:47,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:47,260 INFO L93 Difference]: Finished difference Result 8639 states and 22817 transitions. [2022-01-18 11:09:47,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:09:47,260 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:47,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:47,270 INFO L225 Difference]: With dead ends: 8639 [2022-01-18 11:09:47,270 INFO L226 Difference]: Without dead ends: 8119 [2022-01-18 11:09:47,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=506, Invalid=1474, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:09:47,271 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 284 mSDsluCounter, 2730 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:47,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 2936 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:47,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8119 states. [2022-01-18 11:09:47,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8119 to 7339. [2022-01-18 11:09:47,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.6467702371218316) internal successors, (19422), 7338 states have internal predecessors, (19422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:47,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19422 transitions. [2022-01-18 11:09:47,364 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19422 transitions. Word has length 109 [2022-01-18 11:09:47,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:47,364 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19422 transitions. [2022-01-18 11:09:47,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:47,364 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19422 transitions. [2022-01-18 11:09:47,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:47,372 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:47,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:47,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable471 [2022-01-18 11:09:47,372 INFO L402 AbstractCegarLoop]: === Iteration 473 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:47,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:47,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1774590338, now seen corresponding path program 171 times [2022-01-18 11:09:47,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:47,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691232686] [2022-01-18 11:09:47,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:47,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:47,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:47,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:47,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691232686] [2022-01-18 11:09:47,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691232686] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:47,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:47,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:47,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124320021] [2022-01-18 11:09:47,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:47,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:47,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:47,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:47,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:47,486 INFO L87 Difference]: Start difference. First operand 7339 states and 19422 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:48,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:48,001 INFO L93 Difference]: Finished difference Result 8753 states and 23117 transitions. [2022-01-18 11:09:48,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:09:48,001 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:48,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:48,011 INFO L225 Difference]: With dead ends: 8753 [2022-01-18 11:09:48,011 INFO L226 Difference]: Without dead ends: 8231 [2022-01-18 11:09:48,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:09:48,011 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 337 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 2817 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:48,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 2817 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:48,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8231 states. [2022-01-18 11:09:48,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8231 to 7343. [2022-01-18 11:09:48,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6462816671206757) internal successors, (19429), 7342 states have internal predecessors, (19429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:48,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19429 transitions. [2022-01-18 11:09:48,098 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19429 transitions. Word has length 109 [2022-01-18 11:09:48,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:48,099 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19429 transitions. [2022-01-18 11:09:48,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:48,099 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19429 transitions. [2022-01-18 11:09:48,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:48,106 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:48,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:48,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable472 [2022-01-18 11:09:48,106 INFO L402 AbstractCegarLoop]: === Iteration 474 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:48,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:48,106 INFO L85 PathProgramCache]: Analyzing trace with hash 962461608, now seen corresponding path program 172 times [2022-01-18 11:09:48,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:48,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006194493] [2022-01-18 11:09:48,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:48,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:48,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:48,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:48,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006194493] [2022-01-18 11:09:48,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006194493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:48,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:48,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:48,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025098537] [2022-01-18 11:09:48,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:48,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:48,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:48,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:48,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:48,220 INFO L87 Difference]: Start difference. First operand 7343 states and 19429 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:48,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:48,680 INFO L93 Difference]: Finished difference Result 8589 states and 22687 transitions. [2022-01-18 11:09:48,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:48,680 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:48,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:48,690 INFO L225 Difference]: With dead ends: 8589 [2022-01-18 11:09:48,690 INFO L226 Difference]: Without dead ends: 8110 [2022-01-18 11:09:48,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:48,690 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 261 mSDsluCounter, 2534 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 2732 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:48,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 2732 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:48,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8110 states. [2022-01-18 11:09:48,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8110 to 7347. [2022-01-18 11:09:48,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6457936291859516) internal successors, (19436), 7346 states have internal predecessors, (19436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:48,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19436 transitions. [2022-01-18 11:09:48,776 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19436 transitions. Word has length 109 [2022-01-18 11:09:48,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:48,777 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19436 transitions. [2022-01-18 11:09:48,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:48,777 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19436 transitions. [2022-01-18 11:09:48,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:48,784 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:48,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:48,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable473 [2022-01-18 11:09:48,784 INFO L402 AbstractCegarLoop]: === Iteration 475 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:48,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:48,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1704982570, now seen corresponding path program 173 times [2022-01-18 11:09:48,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:48,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050811417] [2022-01-18 11:09:48,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:48,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:48,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:48,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:48,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050811417] [2022-01-18 11:09:48,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050811417] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:48,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:48,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:48,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042304741] [2022-01-18 11:09:48,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:48,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:48,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:48,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:48,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:48,895 INFO L87 Difference]: Start difference. First operand 7347 states and 19436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:49,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:49,352 INFO L93 Difference]: Finished difference Result 8523 states and 22510 transitions. [2022-01-18 11:09:49,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:09:49,353 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:49,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:49,365 INFO L225 Difference]: With dead ends: 8523 [2022-01-18 11:09:49,365 INFO L226 Difference]: Without dead ends: 8035 [2022-01-18 11:09:49,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:09:49,366 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 239 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:49,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 2674 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:49,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8035 states. [2022-01-18 11:09:49,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8035 to 7335. [2022-01-18 11:09:49,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7335 states, 7334 states have (on average 2.6467139350968094) internal successors, (19411), 7334 states have internal predecessors, (19411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:49,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19411 transitions. [2022-01-18 11:09:49,493 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19411 transitions. Word has length 109 [2022-01-18 11:09:49,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:49,493 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19411 transitions. [2022-01-18 11:09:49,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:49,493 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19411 transitions. [2022-01-18 11:09:49,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:49,504 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:49,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:49,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable474 [2022-01-18 11:09:49,504 INFO L402 AbstractCegarLoop]: === Iteration 476 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:49,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:49,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1307640626, now seen corresponding path program 174 times [2022-01-18 11:09:49,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:49,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960342395] [2022-01-18 11:09:49,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:49,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:49,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:49,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:49,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960342395] [2022-01-18 11:09:49,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960342395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:49,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:49,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:49,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088918508] [2022-01-18 11:09:49,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:49,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:49,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:49,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:49,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:49,646 INFO L87 Difference]: Start difference. First operand 7335 states and 19411 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:50,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:50,376 INFO L93 Difference]: Finished difference Result 8886 states and 23464 transitions. [2022-01-18 11:09:50,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:09:50,377 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:50,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:50,386 INFO L225 Difference]: With dead ends: 8886 [2022-01-18 11:09:50,387 INFO L226 Difference]: Without dead ends: 8321 [2022-01-18 11:09:50,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=642, Invalid=2114, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:09:50,387 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 408 mSDsluCounter, 2451 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:50,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 2654 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:50,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8321 states. [2022-01-18 11:09:50,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8321 to 7339. [2022-01-18 11:09:50,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.646225129463069) internal successors, (19418), 7338 states have internal predecessors, (19418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:50,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19418 transitions. [2022-01-18 11:09:50,477 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19418 transitions. Word has length 109 [2022-01-18 11:09:50,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:50,477 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19418 transitions. [2022-01-18 11:09:50,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:50,477 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19418 transitions. [2022-01-18 11:09:50,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:50,484 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:50,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:50,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable475 [2022-01-18 11:09:50,485 INFO L402 AbstractCegarLoop]: === Iteration 477 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:50,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:50,485 INFO L85 PathProgramCache]: Analyzing trace with hash -2122895608, now seen corresponding path program 175 times [2022-01-18 11:09:50,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:50,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620340011] [2022-01-18 11:09:50,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:50,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:50,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:50,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:50,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620340011] [2022-01-18 11:09:50,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620340011] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:50,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:50,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:50,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130319257] [2022-01-18 11:09:50,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:50,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:50,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:50,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:50,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:50,593 INFO L87 Difference]: Start difference. First operand 7339 states and 19418 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:51,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:51,126 INFO L93 Difference]: Finished difference Result 8761 states and 23135 transitions. [2022-01-18 11:09:51,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:09:51,126 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:51,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:51,136 INFO L225 Difference]: With dead ends: 8761 [2022-01-18 11:09:51,136 INFO L226 Difference]: Without dead ends: 8239 [2022-01-18 11:09:51,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=474, Invalid=1688, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:09:51,137 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 338 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 2819 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:51,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 2819 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:51,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8239 states. [2022-01-18 11:09:51,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8239 to 7343. [2022-01-18 11:09:51,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.645736856442386) internal successors, (19425), 7342 states have internal predecessors, (19425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:51,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19425 transitions. [2022-01-18 11:09:51,224 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19425 transitions. Word has length 109 [2022-01-18 11:09:51,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:51,224 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19425 transitions. [2022-01-18 11:09:51,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:51,224 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19425 transitions. [2022-01-18 11:09:51,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:51,231 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:51,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:51,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable476 [2022-01-18 11:09:51,231 INFO L402 AbstractCegarLoop]: === Iteration 478 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:51,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:51,232 INFO L85 PathProgramCache]: Analyzing trace with hash 614156338, now seen corresponding path program 176 times [2022-01-18 11:09:51,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:51,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530118041] [2022-01-18 11:09:51,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:51,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:51,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:51,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:51,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530118041] [2022-01-18 11:09:51,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530118041] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:51,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:51,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:51,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772588140] [2022-01-18 11:09:51,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:51,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:51,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:51,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:51,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:51,376 INFO L87 Difference]: Start difference. First operand 7343 states and 19425 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:51,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:51,777 INFO L93 Difference]: Finished difference Result 8597 states and 22705 transitions. [2022-01-18 11:09:51,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:51,777 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:51,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:51,786 INFO L225 Difference]: With dead ends: 8597 [2022-01-18 11:09:51,786 INFO L226 Difference]: Without dead ends: 8118 [2022-01-18 11:09:51,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:51,787 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 254 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 2465 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:51,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 2465 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:51,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8118 states. [2022-01-18 11:09:51,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8118 to 7347. [2022-01-18 11:09:51,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6452491151647153) internal successors, (19432), 7346 states have internal predecessors, (19432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:51,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19432 transitions. [2022-01-18 11:09:51,872 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19432 transitions. Word has length 109 [2022-01-18 11:09:51,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:51,872 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19432 transitions. [2022-01-18 11:09:51,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:51,873 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19432 transitions. [2022-01-18 11:09:51,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:51,880 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:51,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:51,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable477 [2022-01-18 11:09:51,880 INFO L402 AbstractCegarLoop]: === Iteration 479 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:51,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:51,880 INFO L85 PathProgramCache]: Analyzing trace with hash -2053287840, now seen corresponding path program 177 times [2022-01-18 11:09:51,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:51,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915806173] [2022-01-18 11:09:51,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:51,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:51,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:51,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:51,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915806173] [2022-01-18 11:09:51,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915806173] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:51,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:51,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:51,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381249223] [2022-01-18 11:09:51,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:51,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:51,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:51,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:51,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:51,991 INFO L87 Difference]: Start difference. First operand 7347 states and 19432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:52,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:52,408 INFO L93 Difference]: Finished difference Result 8523 states and 22506 transitions. [2022-01-18 11:09:52,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:09:52,408 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:52,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:52,417 INFO L225 Difference]: With dead ends: 8523 [2022-01-18 11:09:52,417 INFO L226 Difference]: Without dead ends: 8031 [2022-01-18 11:09:52,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:52,418 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 236 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2658 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:52,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2658 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:52,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8031 states. [2022-01-18 11:09:52,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8031 to 7331. [2022-01-18 11:09:52,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7331 states, 7330 states have (on average 2.6466575716234653) internal successors, (19400), 7330 states have internal predecessors, (19400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:52,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7331 states to 7331 states and 19400 transitions. [2022-01-18 11:09:52,501 INFO L78 Accepts]: Start accepts. Automaton has 7331 states and 19400 transitions. Word has length 109 [2022-01-18 11:09:52,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:52,501 INFO L470 AbstractCegarLoop]: Abstraction has 7331 states and 19400 transitions. [2022-01-18 11:09:52,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:52,501 INFO L276 IsEmpty]: Start isEmpty. Operand 7331 states and 19400 transitions. [2022-01-18 11:09:52,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:52,508 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:52,508 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:52,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable478 [2022-01-18 11:09:52,508 INFO L402 AbstractCegarLoop]: === Iteration 480 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:52,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:52,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1660117148, now seen corresponding path program 178 times [2022-01-18 11:09:52,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:52,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5529500] [2022-01-18 11:09:52,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:52,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:52,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:52,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:52,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5529500] [2022-01-18 11:09:52,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5529500] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:52,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:52,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:52,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839512911] [2022-01-18 11:09:52,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:52,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:52,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:52,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:52,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:52,622 INFO L87 Difference]: Start difference. First operand 7331 states and 19400 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:53,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:53,317 INFO L93 Difference]: Finished difference Result 8839 states and 23316 transitions. [2022-01-18 11:09:53,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 11:09:53,318 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:53,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:53,328 INFO L225 Difference]: With dead ends: 8839 [2022-01-18 11:09:53,328 INFO L226 Difference]: Without dead ends: 8231 [2022-01-18 11:09:53,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1024 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=847, Invalid=2813, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 11:09:53,329 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 485 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:53,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 2869 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:53,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8231 states. [2022-01-18 11:09:53,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8231 to 7335. [2022-01-18 11:09:53,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7335 states, 7334 states have (on average 2.6461685301336244) internal successors, (19407), 7334 states have internal predecessors, (19407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:53,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19407 transitions. [2022-01-18 11:09:53,424 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19407 transitions. Word has length 109 [2022-01-18 11:09:53,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:53,424 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19407 transitions. [2022-01-18 11:09:53,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:53,424 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19407 transitions. [2022-01-18 11:09:53,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:53,433 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:53,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:53,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable479 [2022-01-18 11:09:53,433 INFO L402 AbstractCegarLoop]: === Iteration 481 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:53,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:53,433 INFO L85 PathProgramCache]: Analyzing trace with hash -610354592, now seen corresponding path program 179 times [2022-01-18 11:09:53,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:53,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229416752] [2022-01-18 11:09:53,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:53,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:53,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:53,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:53,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229416752] [2022-01-18 11:09:53,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229416752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:53,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:53,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:53,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306180515] [2022-01-18 11:09:53,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:53,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:53,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:53,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:53,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:53,586 INFO L87 Difference]: Start difference. First operand 7335 states and 19407 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:54,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:54,289 INFO L93 Difference]: Finished difference Result 8726 states and 23020 transitions. [2022-01-18 11:09:54,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:09:54,290 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:54,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:54,300 INFO L225 Difference]: With dead ends: 8726 [2022-01-18 11:09:54,300 INFO L226 Difference]: Without dead ends: 8161 [2022-01-18 11:09:54,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=649, Invalid=2213, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:09:54,301 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 409 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 2420 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:54,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 2420 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:54,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8161 states. [2022-01-18 11:09:54,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8161 to 7339. [2022-01-18 11:09:54,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.6456800218043064) internal successors, (19414), 7338 states have internal predecessors, (19414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:54,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19414 transitions. [2022-01-18 11:09:54,397 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19414 transitions. Word has length 109 [2022-01-18 11:09:54,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:54,397 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19414 transitions. [2022-01-18 11:09:54,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:54,398 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19414 transitions. [2022-01-18 11:09:54,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:54,405 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:54,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:54,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable480 [2022-01-18 11:09:54,405 INFO L402 AbstractCegarLoop]: === Iteration 482 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:54,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:54,405 INFO L85 PathProgramCache]: Analyzing trace with hash 254076470, now seen corresponding path program 180 times [2022-01-18 11:09:54,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:54,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302992938] [2022-01-18 11:09:54,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:54,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:54,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:54,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:54,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302992938] [2022-01-18 11:09:54,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302992938] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:54,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:54,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:54,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637279536] [2022-01-18 11:09:54,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:54,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:54,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:54,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:54,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:54,525 INFO L87 Difference]: Start difference. First operand 7339 states and 19414 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:55,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:55,080 INFO L93 Difference]: Finished difference Result 8613 states and 22724 transitions. [2022-01-18 11:09:55,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:09:55,080 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:55,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:55,090 INFO L225 Difference]: With dead ends: 8613 [2022-01-18 11:09:55,090 INFO L226 Difference]: Without dead ends: 8091 [2022-01-18 11:09:55,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:09:55,090 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 336 mSDsluCounter, 2791 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 2978 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:55,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 2978 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:55,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8091 states. [2022-01-18 11:09:55,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8091 to 7343. [2022-01-18 11:09:55,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.645192045764097) internal successors, (19421), 7342 states have internal predecessors, (19421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:55,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19421 transitions. [2022-01-18 11:09:55,174 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19421 transitions. Word has length 109 [2022-01-18 11:09:55,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:55,174 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19421 transitions. [2022-01-18 11:09:55,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:55,175 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19421 transitions. [2022-01-18 11:09:55,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:55,182 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:55,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:55,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable481 [2022-01-18 11:09:55,182 INFO L402 AbstractCegarLoop]: === Iteration 483 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:55,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:55,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1303838880, now seen corresponding path program 181 times [2022-01-18 11:09:55,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:55,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935190565] [2022-01-18 11:09:55,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:55,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:55,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:55,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:55,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935190565] [2022-01-18 11:09:55,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935190565] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:55,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:55,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:55,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85394674] [2022-01-18 11:09:55,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:55,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:55,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:55,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:55,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:55,318 INFO L87 Difference]: Start difference. First operand 7343 states and 19421 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:55,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:55,734 INFO L93 Difference]: Finished difference Result 8473 states and 22360 transitions. [2022-01-18 11:09:55,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:55,735 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:55,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:55,744 INFO L225 Difference]: With dead ends: 8473 [2022-01-18 11:09:55,744 INFO L226 Difference]: Without dead ends: 7994 [2022-01-18 11:09:55,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:09:55,745 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 266 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:55,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 2653 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:55,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7994 states. [2022-01-18 11:09:55,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7994 to 7347. [2022-01-18 11:09:55,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6447046011434794) internal successors, (19428), 7346 states have internal predecessors, (19428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:55,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19428 transitions. [2022-01-18 11:09:55,829 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19428 transitions. Word has length 109 [2022-01-18 11:09:55,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:55,829 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19428 transitions. [2022-01-18 11:09:55,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:55,830 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19428 transitions. [2022-01-18 11:09:55,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:55,837 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:55,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:55,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable482 [2022-01-18 11:09:55,837 INFO L402 AbstractCegarLoop]: === Iteration 484 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:55,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:55,837 INFO L85 PathProgramCache]: Analyzing trace with hash 323684238, now seen corresponding path program 182 times [2022-01-18 11:09:55,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:55,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811940211] [2022-01-18 11:09:55,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:55,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:55,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:55,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:55,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811940211] [2022-01-18 11:09:55,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811940211] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:55,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:55,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:55,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953772199] [2022-01-18 11:09:55,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:55,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:55,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:55,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:55,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:55,948 INFO L87 Difference]: Start difference. First operand 7347 states and 19428 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:56,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:56,332 INFO L93 Difference]: Finished difference Result 8343 states and 22007 transitions. [2022-01-18 11:09:56,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:09:56,333 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:56,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:56,342 INFO L225 Difference]: With dead ends: 8343 [2022-01-18 11:09:56,342 INFO L226 Difference]: Without dead ends: 7817 [2022-01-18 11:09:56,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:09:56,342 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 219 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2786 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:56,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2786 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:56,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7817 states. [2022-01-18 11:09:56,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7817 to 7297. [2022-01-18 11:09:56,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7297 states, 7296 states have (on average 2.647889254385965) internal successors, (19319), 7296 states have internal predecessors, (19319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:56,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19319 transitions. [2022-01-18 11:09:56,426 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19319 transitions. Word has length 109 [2022-01-18 11:09:56,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:56,426 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19319 transitions. [2022-01-18 11:09:56,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:56,427 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19319 transitions. [2022-01-18 11:09:56,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:56,434 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:56,434 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:56,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable483 [2022-01-18 11:09:56,434 INFO L402 AbstractCegarLoop]: === Iteration 485 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:56,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:56,434 INFO L85 PathProgramCache]: Analyzing trace with hash -744472904, now seen corresponding path program 183 times [2022-01-18 11:09:56,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:56,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328692664] [2022-01-18 11:09:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:56,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:56,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:56,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:56,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328692664] [2022-01-18 11:09:56,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328692664] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:56,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:56,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:56,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755516123] [2022-01-18 11:09:56,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:56,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:56,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:56,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:56,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:56,546 INFO L87 Difference]: Start difference. First operand 7297 states and 19319 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:56,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:56,936 INFO L93 Difference]: Finished difference Result 8551 states and 22599 transitions. [2022-01-18 11:09:56,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:09:56,936 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:56,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:56,946 INFO L225 Difference]: With dead ends: 8551 [2022-01-18 11:09:56,946 INFO L226 Difference]: Without dead ends: 8072 [2022-01-18 11:09:56,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=888, Unknown=0, NotChecked=0, Total=1190 [2022-01-18 11:09:56,947 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 205 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:56,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 2040 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:56,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8072 states. [2022-01-18 11:09:57,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8072 to 7321. [2022-01-18 11:09:57,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6476775956284153) internal successors, (19381), 7320 states have internal predecessors, (19381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:57,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19381 transitions. [2022-01-18 11:09:57,040 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19381 transitions. Word has length 109 [2022-01-18 11:09:57,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:57,041 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19381 transitions. [2022-01-18 11:09:57,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:57,041 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19381 transitions. [2022-01-18 11:09:57,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:57,048 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:57,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:57,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable484 [2022-01-18 11:09:57,049 INFO L402 AbstractCegarLoop]: === Iteration 486 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:57,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:57,049 INFO L85 PathProgramCache]: Analyzing trace with hash 883050214, now seen corresponding path program 184 times [2022-01-18 11:09:57,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:57,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997061500] [2022-01-18 11:09:57,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:57,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:57,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:57,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:57,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997061500] [2022-01-18 11:09:57,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997061500] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:57,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:57,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:57,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729011443] [2022-01-18 11:09:57,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:57,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:57,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:57,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:57,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:57,159 INFO L87 Difference]: Start difference. First operand 7321 states and 19381 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:57,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:57,594 INFO L93 Difference]: Finished difference Result 8517 states and 22510 transitions. [2022-01-18 11:09:57,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:09:57,594 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:57,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:57,604 INFO L225 Difference]: With dead ends: 8517 [2022-01-18 11:09:57,605 INFO L226 Difference]: Without dead ends: 8037 [2022-01-18 11:09:57,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1153, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:09:57,605 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 221 mSDsluCounter, 2114 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2319 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:57,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2319 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:57,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8037 states. [2022-01-18 11:09:57,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8037 to 7317. [2022-01-18 11:09:57,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6476216511755055) internal successors, (19370), 7316 states have internal predecessors, (19370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:57,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19370 transitions. [2022-01-18 11:09:57,702 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19370 transitions. Word has length 109 [2022-01-18 11:09:57,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:57,702 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19370 transitions. [2022-01-18 11:09:57,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:57,702 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19370 transitions. [2022-01-18 11:09:57,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:57,710 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:57,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:57,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable485 [2022-01-18 11:09:57,710 INFO L402 AbstractCegarLoop]: === Iteration 487 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:57,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:57,710 INFO L85 PathProgramCache]: Analyzing trace with hash -238007126, now seen corresponding path program 185 times [2022-01-18 11:09:57,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:57,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521091511] [2022-01-18 11:09:57,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:57,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:57,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:57,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:57,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521091511] [2022-01-18 11:09:57,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521091511] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:57,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:57,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:57,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127769722] [2022-01-18 11:09:57,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:57,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:57,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:57,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:57,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:57,821 INFO L87 Difference]: Start difference. First operand 7317 states and 19370 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:58,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:58,371 INFO L93 Difference]: Finished difference Result 8553 states and 22605 transitions. [2022-01-18 11:09:58,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:09:58,371 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:58,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:58,383 INFO L225 Difference]: With dead ends: 8553 [2022-01-18 11:09:58,383 INFO L226 Difference]: Without dead ends: 8033 [2022-01-18 11:09:58,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=484, Invalid=1678, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:09:58,383 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 270 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2816 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:58,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2816 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:58,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8033 states. [2022-01-18 11:09:58,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8033 to 7313. [2022-01-18 11:09:58,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.647565645514223) internal successors, (19359), 7312 states have internal predecessors, (19359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:58,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19359 transitions. [2022-01-18 11:09:58,483 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19359 transitions. Word has length 109 [2022-01-18 11:09:58,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:58,483 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19359 transitions. [2022-01-18 11:09:58,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:58,483 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19359 transitions. [2022-01-18 11:09:58,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:58,491 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:58,491 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:58,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable486 [2022-01-18 11:09:58,491 INFO L402 AbstractCegarLoop]: === Iteration 488 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:58,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:58,491 INFO L85 PathProgramCache]: Analyzing trace with hash -763142662, now seen corresponding path program 186 times [2022-01-18 11:09:58,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:58,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178079607] [2022-01-18 11:09:58,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:58,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:58,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:58,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:58,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178079607] [2022-01-18 11:09:58,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178079607] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:58,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:58,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:58,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385436555] [2022-01-18 11:09:58,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:58,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:58,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:58,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:58,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:58,640 INFO L87 Difference]: Start difference. First operand 7313 states and 19359 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:59,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:59,268 INFO L93 Difference]: Finished difference Result 8781 states and 23204 transitions. [2022-01-18 11:09:59,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:09:59,269 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:59,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:59,278 INFO L225 Difference]: With dead ends: 8781 [2022-01-18 11:09:59,278 INFO L226 Difference]: Without dead ends: 8221 [2022-01-18 11:09:59,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=668, Invalid=2194, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 11:09:59,279 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 346 mSDsluCounter, 2662 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:59,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 2869 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:59,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8221 states. [2022-01-18 11:09:59,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8221 to 7309. [2022-01-18 11:09:59,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6475095785440614) internal successors, (19348), 7308 states have internal predecessors, (19348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:59,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19348 transitions. [2022-01-18 11:09:59,364 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19348 transitions. Word has length 109 [2022-01-18 11:09:59,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:59,364 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19348 transitions. [2022-01-18 11:09:59,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:59,365 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19348 transitions. [2022-01-18 11:09:59,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:59,371 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:59,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:59,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable487 [2022-01-18 11:09:59,372 INFO L402 AbstractCegarLoop]: === Iteration 489 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:59,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:59,372 INFO L85 PathProgramCache]: Analyzing trace with hash -953456066, now seen corresponding path program 187 times [2022-01-18 11:09:59,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:59,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615396979] [2022-01-18 11:09:59,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:59,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:09:59,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:09:59,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:09:59,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615396979] [2022-01-18 11:09:59,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615396979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:09:59,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:09:59,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:09:59,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086775845] [2022-01-18 11:09:59,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:09:59,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:09:59,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:09:59,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:09:59,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:09:59,484 INFO L87 Difference]: Start difference. First operand 7309 states and 19348 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:59,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:09:59,884 INFO L93 Difference]: Finished difference Result 8527 states and 22529 transitions. [2022-01-18 11:09:59,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:09:59,884 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:09:59,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:09:59,894 INFO L225 Difference]: With dead ends: 8527 [2022-01-18 11:09:59,894 INFO L226 Difference]: Without dead ends: 8048 [2022-01-18 11:09:59,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=942, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:09:59,894 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 225 mSDsluCounter, 1890 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:09:59,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 2093 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:09:59,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8048 states. [2022-01-18 11:09:59,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8048 to 7321. [2022-01-18 11:09:59,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6471311475409838) internal successors, (19377), 7320 states have internal predecessors, (19377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:59,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19377 transitions. [2022-01-18 11:09:59,979 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19377 transitions. Word has length 109 [2022-01-18 11:09:59,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:09:59,980 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19377 transitions. [2022-01-18 11:09:59,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:09:59,980 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19377 transitions. [2022-01-18 11:09:59,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:09:59,987 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:09:59,987 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:09:59,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable488 [2022-01-18 11:09:59,987 INFO L402 AbstractCegarLoop]: === Iteration 490 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:09:59,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:09:59,987 INFO L85 PathProgramCache]: Analyzing trace with hash 674067052, now seen corresponding path program 188 times [2022-01-18 11:09:59,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:09:59,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658609982] [2022-01-18 11:09:59,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:09:59,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:09:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:00,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:00,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:00,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658609982] [2022-01-18 11:10:00,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658609982] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:00,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:00,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:00,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437992299] [2022-01-18 11:10:00,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:00,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:00,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:00,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:00,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:00,094 INFO L87 Difference]: Start difference. First operand 7321 states and 19377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:00,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:00,525 INFO L93 Difference]: Finished difference Result 8485 states and 22418 transitions. [2022-01-18 11:10:00,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:00,525 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:00,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:00,535 INFO L225 Difference]: With dead ends: 8485 [2022-01-18 11:10:00,535 INFO L226 Difference]: Without dead ends: 8005 [2022-01-18 11:10:00,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1148, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:10:00,536 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 205 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2589 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:00,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 2589 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:00,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8005 states. [2022-01-18 11:10:00,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8005 to 7317. [2022-01-18 11:10:00,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6470749043193003) internal successors, (19366), 7316 states have internal predecessors, (19366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:00,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-01-18 11:10:00,632 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-01-18 11:10:00,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:00,632 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-01-18 11:10:00,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:00,633 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-01-18 11:10:00,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:00,640 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:00,640 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:00,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable489 [2022-01-18 11:10:00,640 INFO L402 AbstractCegarLoop]: === Iteration 491 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:00,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:00,641 INFO L85 PathProgramCache]: Analyzing trace with hash -446990288, now seen corresponding path program 189 times [2022-01-18 11:10:00,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:00,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972928570] [2022-01-18 11:10:00,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:00,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:00,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:00,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:00,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972928570] [2022-01-18 11:10:00,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972928570] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:00,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:00,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:00,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665072781] [2022-01-18 11:10:00,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:00,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:00,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:00,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:00,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:00,749 INFO L87 Difference]: Start difference. First operand 7317 states and 19366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:01,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:01,280 INFO L93 Difference]: Finished difference Result 8653 states and 22860 transitions. [2022-01-18 11:10:01,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:10:01,280 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:01,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:01,291 INFO L225 Difference]: With dead ends: 8653 [2022-01-18 11:10:01,291 INFO L226 Difference]: Without dead ends: 8133 [2022-01-18 11:10:01,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:10:01,291 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 285 mSDsluCounter, 2454 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 2658 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:01,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 2658 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:01,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8133 states. [2022-01-18 11:10:01,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8133 to 7313. [2022-01-18 11:10:01,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6470185995623634) internal successors, (19355), 7312 states have internal predecessors, (19355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:01,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-01-18 11:10:01,387 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-01-18 11:10:01,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:01,387 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-01-18 11:10:01,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:01,387 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-01-18 11:10:01,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:01,394 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:01,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:01,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable490 [2022-01-18 11:10:01,395 INFO L402 AbstractCegarLoop]: === Iteration 492 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:01,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:01,395 INFO L85 PathProgramCache]: Analyzing trace with hash -374360564, now seen corresponding path program 190 times [2022-01-18 11:10:01,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:01,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008673507] [2022-01-18 11:10:01,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:01,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:01,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:01,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:01,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008673507] [2022-01-18 11:10:01,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008673507] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:01,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:01,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:01,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728781115] [2022-01-18 11:10:01,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:01,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:01,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:01,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:01,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:01,507 INFO L87 Difference]: Start difference. First operand 7313 states and 19355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:02,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:02,010 INFO L93 Difference]: Finished difference Result 8571 states and 22621 transitions. [2022-01-18 11:10:02,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:10:02,010 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:02,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:02,019 INFO L225 Difference]: With dead ends: 8571 [2022-01-18 11:10:02,020 INFO L226 Difference]: Without dead ends: 8049 [2022-01-18 11:10:02,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=440, Invalid=1282, Unknown=0, NotChecked=0, Total=1722 [2022-01-18 11:10:02,020 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 285 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:02,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 2153 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:02,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8049 states. [2022-01-18 11:10:02,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8049 to 7317. [2022-01-18 11:10:02,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:02,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-01-18 11:10:02,105 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-01-18 11:10:02,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:02,105 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-01-18 11:10:02,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:02,106 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-01-18 11:10:02,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:02,114 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:02,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:02,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable491 [2022-01-18 11:10:02,114 INFO L402 AbstractCegarLoop]: === Iteration 493 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:02,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:02,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1932275914, now seen corresponding path program 191 times [2022-01-18 11:10:02,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:02,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914872488] [2022-01-18 11:10:02,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:02,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:02,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:02,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:02,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914872488] [2022-01-18 11:10:02,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914872488] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:02,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:02,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:02,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407653163] [2022-01-18 11:10:02,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:02,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:02,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:02,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:02,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:02,244 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:02,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:02,667 INFO L93 Difference]: Finished difference Result 8471 states and 22367 transitions. [2022-01-18 11:10:02,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:02,667 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:02,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:02,676 INFO L225 Difference]: With dead ends: 8471 [2022-01-18 11:10:02,676 INFO L226 Difference]: Without dead ends: 7992 [2022-01-18 11:10:02,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=336, Invalid=996, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:10:02,677 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 223 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:02,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 2051 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:02,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2022-01-18 11:10:02,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 7321. [2022-01-18 11:10:02,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6460382513661203) internal successors, (19369), 7320 states have internal predecessors, (19369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:02,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19369 transitions. [2022-01-18 11:10:02,762 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19369 transitions. Word has length 109 [2022-01-18 11:10:02,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:02,762 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19369 transitions. [2022-01-18 11:10:02,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:02,763 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19369 transitions. [2022-01-18 11:10:02,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:02,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:02,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:02,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable492 [2022-01-18 11:10:02,770 INFO L402 AbstractCegarLoop]: === Iteration 494 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:02,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:02,770 INFO L85 PathProgramCache]: Analyzing trace with hash -304752796, now seen corresponding path program 192 times [2022-01-18 11:10:02,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:02,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485945348] [2022-01-18 11:10:02,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:02,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:02,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:02,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:02,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485945348] [2022-01-18 11:10:02,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485945348] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:02,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:02,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:02,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182998309] [2022-01-18 11:10:02,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:02,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:02,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:02,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:02,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:02,880 INFO L87 Difference]: Start difference. First operand 7321 states and 19369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:03,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:03,281 INFO L93 Difference]: Finished difference Result 8421 states and 22234 transitions. [2022-01-18 11:10:03,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:10:03,281 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:03,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:03,292 INFO L225 Difference]: With dead ends: 8421 [2022-01-18 11:10:03,292 INFO L226 Difference]: Without dead ends: 7929 [2022-01-18 11:10:03,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:10:03,292 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 213 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2326 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:03,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2326 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:03,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7929 states. [2022-01-18 11:10:03,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7929 to 7305. [2022-01-18 11:10:03,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.6474534501642935) internal successors, (19337), 7304 states have internal predecessors, (19337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:03,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19337 transitions. [2022-01-18 11:10:03,380 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19337 transitions. Word has length 109 [2022-01-18 11:10:03,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:03,381 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19337 transitions. [2022-01-18 11:10:03,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:03,381 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19337 transitions. [2022-01-18 11:10:03,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:03,388 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:03,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:03,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable493 [2022-01-18 11:10:03,388 INFO L402 AbstractCegarLoop]: === Iteration 495 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:03,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:03,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1565037480, now seen corresponding path program 193 times [2022-01-18 11:10:03,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:03,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880897817] [2022-01-18 11:10:03,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:03,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:03,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:03,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:03,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880897817] [2022-01-18 11:10:03,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880897817] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:03,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:03,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:03,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441385512] [2022-01-18 11:10:03,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:03,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:03,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:03,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:03,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:03,497 INFO L87 Difference]: Start difference. First operand 7305 states and 19337 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:03,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:03,868 INFO L93 Difference]: Finished difference Result 8363 states and 22078 transitions. [2022-01-18 11:10:03,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:10:03,869 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:03,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:03,878 INFO L225 Difference]: With dead ends: 8363 [2022-01-18 11:10:03,878 INFO L226 Difference]: Without dead ends: 7884 [2022-01-18 11:10:03,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=289, Invalid=833, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 11:10:03,878 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 200 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:03,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2181 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:03,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7884 states. [2022-01-18 11:10:03,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7884 to 7321. [2022-01-18 11:10:03,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6471311475409838) internal successors, (19377), 7320 states have internal predecessors, (19377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:03,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19377 transitions. [2022-01-18 11:10:03,968 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19377 transitions. Word has length 109 [2022-01-18 11:10:03,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:03,968 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19377 transitions. [2022-01-18 11:10:03,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:03,968 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19377 transitions. [2022-01-18 11:10:03,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:03,975 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:03,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:03,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable494 [2022-01-18 11:10:03,976 INFO L402 AbstractCegarLoop]: === Iteration 496 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:03,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:03,976 INFO L85 PathProgramCache]: Analyzing trace with hash 62485638, now seen corresponding path program 194 times [2022-01-18 11:10:03,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:03,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448901662] [2022-01-18 11:10:03,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:03,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:04,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:04,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:04,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448901662] [2022-01-18 11:10:04,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448901662] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:04,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:04,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:04,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66586815] [2022-01-18 11:10:04,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:04,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:04,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:04,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:04,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:04,088 INFO L87 Difference]: Start difference. First operand 7321 states and 19377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:04,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:04,507 INFO L93 Difference]: Finished difference Result 8333 states and 22000 transitions. [2022-01-18 11:10:04,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:04,508 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:04,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:04,517 INFO L225 Difference]: With dead ends: 8333 [2022-01-18 11:10:04,517 INFO L226 Difference]: Without dead ends: 7853 [2022-01-18 11:10:04,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:10:04,518 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 218 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:04,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 2200 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:04,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7853 states. [2022-01-18 11:10:04,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7853 to 7317. [2022-01-18 11:10:04,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6470749043193003) internal successors, (19366), 7316 states have internal predecessors, (19366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:04,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-01-18 11:10:04,610 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-01-18 11:10:04,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:04,611 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-01-18 11:10:04,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:04,611 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-01-18 11:10:04,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:04,619 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:04,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:04,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable495 [2022-01-18 11:10:04,620 INFO L402 AbstractCegarLoop]: === Iteration 497 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:04,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:04,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1058571702, now seen corresponding path program 195 times [2022-01-18 11:10:04,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:04,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044458463] [2022-01-18 11:10:04,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:04,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:04,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:04,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:04,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044458463] [2022-01-18 11:10:04,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044458463] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:04,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:04,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:04,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671168575] [2022-01-18 11:10:04,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:04,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:04,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:04,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:04,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:04,735 INFO L87 Difference]: Start difference. First operand 7317 states and 19366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:05,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:05,266 INFO L93 Difference]: Finished difference Result 8369 states and 22095 transitions. [2022-01-18 11:10:05,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:10:05,267 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:05,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:05,275 INFO L225 Difference]: With dead ends: 8369 [2022-01-18 11:10:05,275 INFO L226 Difference]: Without dead ends: 7849 [2022-01-18 11:10:05,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=475, Invalid=1687, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:10:05,276 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 280 mSDsluCounter, 2073 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 2288 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:05,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 2288 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:05,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7849 states. [2022-01-18 11:10:05,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7849 to 7313. [2022-01-18 11:10:05,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6470185995623634) internal successors, (19355), 7312 states have internal predecessors, (19355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:05,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-01-18 11:10:05,360 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-01-18 11:10:05,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:05,360 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-01-18 11:10:05,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:05,360 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-01-18 11:10:05,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:05,367 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:05,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:05,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable496 [2022-01-18 11:10:05,368 INFO L402 AbstractCegarLoop]: === Iteration 498 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:05,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:05,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1583707238, now seen corresponding path program 196 times [2022-01-18 11:10:05,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:05,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495298024] [2022-01-18 11:10:05,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:05,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:05,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:05,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:05,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495298024] [2022-01-18 11:10:05,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495298024] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:05,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:05,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:05,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406359323] [2022-01-18 11:10:05,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:05,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:05,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:05,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:05,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:05,476 INFO L87 Difference]: Start difference. First operand 7313 states and 19355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:06,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:06,118 INFO L93 Difference]: Finished difference Result 8405 states and 22190 transitions. [2022-01-18 11:10:06,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:10:06,118 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:06,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:06,127 INFO L225 Difference]: With dead ends: 8405 [2022-01-18 11:10:06,127 INFO L226 Difference]: Without dead ends: 7845 [2022-01-18 11:10:06,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=675, Invalid=2295, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 11:10:06,128 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 315 mSDsluCounter, 2698 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 2908 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:06,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [315 Valid, 2908 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:06,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7845 states. [2022-01-18 11:10:06,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7845 to 7309. [2022-01-18 11:10:06,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6469622331691296) internal successors, (19344), 7308 states have internal predecessors, (19344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:06,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19344 transitions. [2022-01-18 11:10:06,212 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19344 transitions. Word has length 109 [2022-01-18 11:10:06,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:06,212 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19344 transitions. [2022-01-18 11:10:06,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:06,212 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19344 transitions. [2022-01-18 11:10:06,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:06,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:06,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:06,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable497 [2022-01-18 11:10:06,220 INFO L402 AbstractCegarLoop]: === Iteration 499 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:06,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:06,220 INFO L85 PathProgramCache]: Analyzing trace with hash -931413972, now seen corresponding path program 197 times [2022-01-18 11:10:06,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:06,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653286189] [2022-01-18 11:10:06,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:06,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:06,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:06,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:06,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:06,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653286189] [2022-01-18 11:10:06,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653286189] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:06,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:06,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:06,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249388287] [2022-01-18 11:10:06,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:06,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:06,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:06,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:06,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:06,329 INFO L87 Difference]: Start difference. First operand 7309 states and 19344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:07,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:07,000 INFO L93 Difference]: Finished difference Result 8373 states and 22102 transitions. [2022-01-18 11:10:07,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:10:07,000 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:07,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:07,009 INFO L225 Difference]: With dead ends: 8373 [2022-01-18 11:10:07,009 INFO L226 Difference]: Without dead ends: 7769 [2022-01-18 11:10:07,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 911 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=796, Invalid=2510, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 11:10:07,010 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 386 mSDsluCounter, 2664 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:07,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 2872 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:07,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7769 states. [2022-01-18 11:10:07,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7769 to 7301. [2022-01-18 11:10:07,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7301 states, 7300 states have (on average 2.647397260273973) internal successors, (19326), 7300 states have internal predecessors, (19326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:07,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 19326 transitions. [2022-01-18 11:10:07,134 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 19326 transitions. Word has length 109 [2022-01-18 11:10:07,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:07,135 INFO L470 AbstractCegarLoop]: Abstraction has 7301 states and 19326 transitions. [2022-01-18 11:10:07,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:07,135 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 19326 transitions. [2022-01-18 11:10:07,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:07,141 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:07,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:07,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable498 [2022-01-18 11:10:07,142 INFO L402 AbstractCegarLoop]: === Iteration 500 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:07,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:07,142 INFO L85 PathProgramCache]: Analyzing trace with hash 698429018, now seen corresponding path program 198 times [2022-01-18 11:10:07,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:07,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964638521] [2022-01-18 11:10:07,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:07,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:07,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:07,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:07,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964638521] [2022-01-18 11:10:07,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964638521] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:07,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:07,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:07,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316678018] [2022-01-18 11:10:07,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:07,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:07,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:07,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:07,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:07,253 INFO L87 Difference]: Start difference. First operand 7301 states and 19326 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:07,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:07,643 INFO L93 Difference]: Finished difference Result 8503 states and 22467 transitions. [2022-01-18 11:10:07,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:10:07,643 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:07,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:07,652 INFO L225 Difference]: With dead ends: 8503 [2022-01-18 11:10:07,652 INFO L226 Difference]: Without dead ends: 8024 [2022-01-18 11:10:07,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=296, Invalid=894, Unknown=0, NotChecked=0, Total=1190 [2022-01-18 11:10:07,653 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 216 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2349 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:07,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2349 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:07,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8024 states. [2022-01-18 11:10:07,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8024 to 7321. [2022-01-18 11:10:07,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6471311475409838) internal successors, (19377), 7320 states have internal predecessors, (19377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:07,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19377 transitions. [2022-01-18 11:10:07,737 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19377 transitions. Word has length 109 [2022-01-18 11:10:07,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:07,738 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19377 transitions. [2022-01-18 11:10:07,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:07,738 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19377 transitions. [2022-01-18 11:10:07,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:07,744 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:07,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:07,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable499 [2022-01-18 11:10:07,745 INFO L402 AbstractCegarLoop]: === Iteration 501 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:07,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:07,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1969015160, now seen corresponding path program 199 times [2022-01-18 11:10:07,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:07,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095019709] [2022-01-18 11:10:07,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:07,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:07,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:07,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:07,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095019709] [2022-01-18 11:10:07,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095019709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:07,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:07,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:07,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224259188] [2022-01-18 11:10:07,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:07,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:07,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:07,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:07,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:07,853 INFO L87 Difference]: Start difference. First operand 7321 states and 19377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:08,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:08,267 INFO L93 Difference]: Finished difference Result 8469 states and 22378 transitions. [2022-01-18 11:10:08,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:08,268 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:08,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:08,277 INFO L225 Difference]: With dead ends: 8469 [2022-01-18 11:10:08,278 INFO L226 Difference]: Without dead ends: 7989 [2022-01-18 11:10:08,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:10:08,278 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 240 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 2404 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:08,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 2404 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:08,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7989 states. [2022-01-18 11:10:08,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7989 to 7317. [2022-01-18 11:10:08,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6470749043193003) internal successors, (19366), 7316 states have internal predecessors, (19366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:08,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-01-18 11:10:08,369 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-01-18 11:10:08,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:08,370 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-01-18 11:10:08,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:08,370 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-01-18 11:10:08,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:08,377 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:08,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:08,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable500 [2022-01-18 11:10:08,377 INFO L402 AbstractCegarLoop]: === Iteration 502 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:08,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:08,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1204894796, now seen corresponding path program 200 times [2022-01-18 11:10:08,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:08,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064270723] [2022-01-18 11:10:08,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:08,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:08,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:08,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:08,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064270723] [2022-01-18 11:10:08,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064270723] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:08,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:08,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:08,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840643156] [2022-01-18 11:10:08,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:08,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:08,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:08,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:08,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:08,490 INFO L87 Difference]: Start difference. First operand 7317 states and 19366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:09,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:09,011 INFO L93 Difference]: Finished difference Result 8505 states and 22473 transitions. [2022-01-18 11:10:09,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:10:09,011 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:09,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:09,021 INFO L225 Difference]: With dead ends: 8505 [2022-01-18 11:10:09,021 INFO L226 Difference]: Without dead ends: 7985 [2022-01-18 11:10:09,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=493, Invalid=1669, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:10:09,021 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 277 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 2629 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:09,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 2629 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:09,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7985 states. [2022-01-18 11:10:09,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7985 to 7313. [2022-01-18 11:10:09,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6470185995623634) internal successors, (19355), 7312 states have internal predecessors, (19355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:09,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-01-18 11:10:09,107 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-01-18 11:10:09,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:09,107 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-01-18 11:10:09,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:09,107 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-01-18 11:10:09,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:09,114 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:09,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:09,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable501 [2022-01-18 11:10:09,115 INFO L402 AbstractCegarLoop]: === Iteration 503 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:09,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:09,115 INFO L85 PathProgramCache]: Analyzing trace with hash 679759260, now seen corresponding path program 201 times [2022-01-18 11:10:09,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:09,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690996012] [2022-01-18 11:10:09,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:09,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:09,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:09,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:09,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690996012] [2022-01-18 11:10:09,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690996012] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:09,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:09,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:09,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780140710] [2022-01-18 11:10:09,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:09,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:09,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:09,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:09,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:09,224 INFO L87 Difference]: Start difference. First operand 7313 states and 19355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:09,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:09,807 INFO L93 Difference]: Finished difference Result 8649 states and 22841 transitions. [2022-01-18 11:10:09,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:10:09,807 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:09,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:09,816 INFO L225 Difference]: With dead ends: 8649 [2022-01-18 11:10:09,816 INFO L226 Difference]: Without dead ends: 8089 [2022-01-18 11:10:09,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 698 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=661, Invalid=2095, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:10:09,817 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 380 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 2479 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:09,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 2479 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:09,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8089 states. [2022-01-18 11:10:09,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8089 to 7309. [2022-01-18 11:10:09,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6469622331691296) internal successors, (19344), 7308 states have internal predecessors, (19344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:09,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19344 transitions. [2022-01-18 11:10:09,901 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19344 transitions. Word has length 109 [2022-01-18 11:10:09,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:09,901 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19344 transitions. [2022-01-18 11:10:09,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:09,901 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19344 transitions. [2022-01-18 11:10:09,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:09,908 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:09,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:09,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable502 [2022-01-18 11:10:09,908 INFO L402 AbstractCegarLoop]: === Iteration 504 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:09,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:09,908 INFO L85 PathProgramCache]: Analyzing trace with hash 489445856, now seen corresponding path program 202 times [2022-01-18 11:10:09,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:09,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610389983] [2022-01-18 11:10:09,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:09,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:10,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:10,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:10,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610389983] [2022-01-18 11:10:10,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610389983] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:10,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:10,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:10,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942954296] [2022-01-18 11:10:10,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:10,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:10,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:10,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:10,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:10,021 INFO L87 Difference]: Start difference. First operand 7309 states and 19344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:10,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:10,408 INFO L93 Difference]: Finished difference Result 8575 states and 22661 transitions. [2022-01-18 11:10:10,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:10:10,408 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:10,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:10,418 INFO L225 Difference]: With dead ends: 8575 [2022-01-18 11:10:10,418 INFO L226 Difference]: Without dead ends: 8096 [2022-01-18 11:10:10,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=948, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:10:10,418 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 222 mSDsluCounter, 1966 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:10,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 2161 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:10,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8096 states. [2022-01-18 11:10:10,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8096 to 7321. [2022-01-18 11:10:10,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.646584699453552) internal successors, (19373), 7320 states have internal predecessors, (19373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:10,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19373 transitions. [2022-01-18 11:10:10,502 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19373 transitions. Word has length 109 [2022-01-18 11:10:10,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:10,502 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19373 transitions. [2022-01-18 11:10:10,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:10,502 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19373 transitions. [2022-01-18 11:10:10,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:10,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:10,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:10,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable503 [2022-01-18 11:10:10,510 INFO L402 AbstractCegarLoop]: === Iteration 505 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:10,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:10,510 INFO L85 PathProgramCache]: Analyzing trace with hash 2116968974, now seen corresponding path program 203 times [2022-01-18 11:10:10,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:10,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233849189] [2022-01-18 11:10:10,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:10,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:10,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:10,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:10,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233849189] [2022-01-18 11:10:10,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233849189] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:10,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:10,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:10,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814666720] [2022-01-18 11:10:10,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:10,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:10,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:10,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:10,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:10,634 INFO L87 Difference]: Start difference. First operand 7321 states and 19373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:11,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:11,062 INFO L93 Difference]: Finished difference Result 8533 states and 22550 transitions. [2022-01-18 11:10:11,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:11,063 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:11,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:11,072 INFO L225 Difference]: With dead ends: 8533 [2022-01-18 11:10:11,072 INFO L226 Difference]: Without dead ends: 8053 [2022-01-18 11:10:11,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=338, Invalid=1144, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:10:11,073 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 219 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2691 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:11,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2691 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:11,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8053 states. [2022-01-18 11:10:11,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8053 to 7317. [2022-01-18 11:10:11,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:11,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-01-18 11:10:11,158 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-01-18 11:10:11,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:11,158 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-01-18 11:10:11,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:11,158 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-01-18 11:10:11,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:11,165 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:11,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:11,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable504 [2022-01-18 11:10:11,165 INFO L402 AbstractCegarLoop]: === Iteration 506 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:11,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:11,165 INFO L85 PathProgramCache]: Analyzing trace with hash 995911634, now seen corresponding path program 204 times [2022-01-18 11:10:11,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:11,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421635692] [2022-01-18 11:10:11,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:11,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:11,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:11,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:11,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421635692] [2022-01-18 11:10:11,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421635692] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:11,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:11,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:11,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116636789] [2022-01-18 11:10:11,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:11,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:11,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:11,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:11,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:11,275 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:11,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:11,776 INFO L93 Difference]: Finished difference Result 8661 states and 22882 transitions. [2022-01-18 11:10:11,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:10:11,776 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:11,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:11,786 INFO L225 Difference]: With dead ends: 8661 [2022-01-18 11:10:11,786 INFO L226 Difference]: Without dead ends: 8141 [2022-01-18 11:10:11,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=481, Invalid=1589, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:10:11,786 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 311 mSDsluCounter, 2275 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:11,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 2476 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:11,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2022-01-18 11:10:11,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 7313. [2022-01-18 11:10:11,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:11,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-01-18 11:10:11,870 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-01-18 11:10:11,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:11,870 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-01-18 11:10:11,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:11,870 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-01-18 11:10:11,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:11,877 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:11,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:11,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable505 [2022-01-18 11:10:11,877 INFO L402 AbstractCegarLoop]: === Iteration 507 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:11,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:11,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1068541358, now seen corresponding path program 205 times [2022-01-18 11:10:11,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:11,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457639867] [2022-01-18 11:10:11,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:11,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:11,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:11,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:11,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457639867] [2022-01-18 11:10:11,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457639867] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:11,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:11,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:11,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056340593] [2022-01-18 11:10:11,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:11,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:11,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:11,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:11,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:11,988 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:12,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:12,476 INFO L93 Difference]: Finished difference Result 8663 states and 22874 transitions. [2022-01-18 11:10:12,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:10:12,477 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:12,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:12,486 INFO L225 Difference]: With dead ends: 8663 [2022-01-18 11:10:12,486 INFO L226 Difference]: Without dead ends: 8141 [2022-01-18 11:10:12,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1440, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:10:12,486 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 298 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:12,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 2496 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:12,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2022-01-18 11:10:12,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 7317. [2022-01-18 11:10:12,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.645981410606889) internal successors, (19358), 7316 states have internal predecessors, (19358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:12,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19358 transitions. [2022-01-18 11:10:12,570 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19358 transitions. Word has length 109 [2022-01-18 11:10:12,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:12,570 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19358 transitions. [2022-01-18 11:10:12,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:12,571 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19358 transitions. [2022-01-18 11:10:12,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:12,578 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:12,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:12,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable506 [2022-01-18 11:10:12,578 INFO L402 AbstractCegarLoop]: === Iteration 508 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:12,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:12,578 INFO L85 PathProgramCache]: Analyzing trace with hash -489373992, now seen corresponding path program 206 times [2022-01-18 11:10:12,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:12,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251078237] [2022-01-18 11:10:12,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:12,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:12,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:12,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:12,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251078237] [2022-01-18 11:10:12,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251078237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:12,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:12,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:12,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797138200] [2022-01-18 11:10:12,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:12,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:12,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:12,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:12,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:12,692 INFO L87 Difference]: Start difference. First operand 7317 states and 19358 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:13,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:13,124 INFO L93 Difference]: Finished difference Result 8515 states and 22488 transitions. [2022-01-18 11:10:13,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:13,125 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:13,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:13,134 INFO L225 Difference]: With dead ends: 8515 [2022-01-18 11:10:13,134 INFO L226 Difference]: Without dead ends: 8036 [2022-01-18 11:10:13,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:10:13,134 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 219 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2573 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:13,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2573 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:13,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8036 states. [2022-01-18 11:10:13,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8036 to 7321. [2022-01-18 11:10:13,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6454918032786887) internal successors, (19365), 7320 states have internal predecessors, (19365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:13,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19365 transitions. [2022-01-18 11:10:13,220 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19365 transitions. Word has length 109 [2022-01-18 11:10:13,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:13,220 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19365 transitions. [2022-01-18 11:10:13,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:13,220 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19365 transitions. [2022-01-18 11:10:13,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:13,227 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:13,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:13,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable507 [2022-01-18 11:10:13,227 INFO L402 AbstractCegarLoop]: === Iteration 509 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:13,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:13,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1138149126, now seen corresponding path program 207 times [2022-01-18 11:10:13,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:13,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82187149] [2022-01-18 11:10:13,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:13,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:13,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:13,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:13,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82187149] [2022-01-18 11:10:13,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82187149] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:13,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:13,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:13,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509649874] [2022-01-18 11:10:13,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:13,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:13,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:13,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:13,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:13,355 INFO L87 Difference]: Start difference. First operand 7321 states and 19365 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:13,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:13,767 INFO L93 Difference]: Finished difference Result 8433 states and 22267 transitions. [2022-01-18 11:10:13,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:10:13,768 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:13,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:13,778 INFO L225 Difference]: With dead ends: 8433 [2022-01-18 11:10:13,778 INFO L226 Difference]: Without dead ends: 7941 [2022-01-18 11:10:13,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1086, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:10:13,778 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 225 mSDsluCounter, 2201 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:13,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 2396 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:13,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7941 states. [2022-01-18 11:10:13,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7941 to 7305. [2022-01-18 11:10:13,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.646905805038335) internal successors, (19333), 7304 states have internal predecessors, (19333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:13,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19333 transitions. [2022-01-18 11:10:13,871 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19333 transitions. Word has length 109 [2022-01-18 11:10:13,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:13,871 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19333 transitions. [2022-01-18 11:10:13,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:13,871 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19333 transitions. [2022-01-18 11:10:13,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:13,879 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:13,879 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:13,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable508 [2022-01-18 11:10:13,879 INFO L402 AbstractCegarLoop]: === Iteration 510 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:13,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:13,879 INFO L85 PathProgramCache]: Analyzing trace with hash 441409752, now seen corresponding path program 208 times [2022-01-18 11:10:13,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:13,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309283845] [2022-01-18 11:10:13,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:13,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:13,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:13,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:13,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309283845] [2022-01-18 11:10:13,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309283845] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:13,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:13,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:13,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125689352] [2022-01-18 11:10:13,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:13,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:13,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:13,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:13,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:13,996 INFO L87 Difference]: Start difference. First operand 7305 states and 19333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:14,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:14,431 INFO L93 Difference]: Finished difference Result 8471 states and 22375 transitions. [2022-01-18 11:10:14,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:10:14,431 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:14,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:14,441 INFO L225 Difference]: With dead ends: 8471 [2022-01-18 11:10:14,441 INFO L226 Difference]: Without dead ends: 7992 [2022-01-18 11:10:14,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=953, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:10:14,441 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 236 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:14,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2392 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:14,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2022-01-18 11:10:14,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 7321. [2022-01-18 11:10:14,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.646584699453552) internal successors, (19373), 7320 states have internal predecessors, (19373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:14,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19373 transitions. [2022-01-18 11:10:14,535 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19373 transitions. Word has length 109 [2022-01-18 11:10:14,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:14,535 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19373 transitions. [2022-01-18 11:10:14,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:14,535 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19373 transitions. [2022-01-18 11:10:14,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:14,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:14,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:14,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable509 [2022-01-18 11:10:14,543 INFO L402 AbstractCegarLoop]: === Iteration 511 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:14,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:14,543 INFO L85 PathProgramCache]: Analyzing trace with hash 2068932870, now seen corresponding path program 209 times [2022-01-18 11:10:14,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:14,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707218212] [2022-01-18 11:10:14,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:14,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:14,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:14,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:14,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707218212] [2022-01-18 11:10:14,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707218212] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:14,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:14,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:14,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286406955] [2022-01-18 11:10:14,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:14,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:14,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:14,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:14,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:14,665 INFO L87 Difference]: Start difference. First operand 7321 states and 19373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:15,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:15,116 INFO L93 Difference]: Finished difference Result 8429 states and 22264 transitions. [2022-01-18 11:10:15,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:15,117 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:15,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:15,126 INFO L225 Difference]: With dead ends: 8429 [2022-01-18 11:10:15,126 INFO L226 Difference]: Without dead ends: 7949 [2022-01-18 11:10:15,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:10:15,127 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 225 mSDsluCounter, 2201 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 2397 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:15,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 2397 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:15,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7949 states. [2022-01-18 11:10:15,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7949 to 7317. [2022-01-18 11:10:15,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:15,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-01-18 11:10:15,247 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-01-18 11:10:15,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:15,247 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-01-18 11:10:15,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:15,247 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-01-18 11:10:15,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:15,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:15,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:15,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable510 [2022-01-18 11:10:15,254 INFO L402 AbstractCegarLoop]: === Iteration 512 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:15,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:15,255 INFO L85 PathProgramCache]: Analyzing trace with hash 947875530, now seen corresponding path program 210 times [2022-01-18 11:10:15,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:15,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255014678] [2022-01-18 11:10:15,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:15,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:15,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:15,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:15,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255014678] [2022-01-18 11:10:15,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255014678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:15,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:15,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:15,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948730175] [2022-01-18 11:10:15,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:15,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:15,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:15,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:15,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:15,367 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:15,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:15,860 INFO L93 Difference]: Finished difference Result 8537 states and 22541 transitions. [2022-01-18 11:10:15,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:10:15,860 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:15,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:15,870 INFO L225 Difference]: With dead ends: 8537 [2022-01-18 11:10:15,870 INFO L226 Difference]: Without dead ends: 8017 [2022-01-18 11:10:15,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=470, Invalid=1510, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:10:15,871 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 283 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:15,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 2728 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:15,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8017 states. [2022-01-18 11:10:15,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8017 to 7313. [2022-01-18 11:10:15,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:15,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-01-18 11:10:15,959 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-01-18 11:10:15,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:15,959 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-01-18 11:10:15,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:15,959 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-01-18 11:10:15,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:15,966 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:15,966 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:15,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable511 [2022-01-18 11:10:15,967 INFO L402 AbstractCegarLoop]: === Iteration 513 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:15,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:15,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1020505254, now seen corresponding path program 211 times [2022-01-18 11:10:15,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:15,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795028400] [2022-01-18 11:10:15,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:15,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:16,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:16,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:16,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795028400] [2022-01-18 11:10:16,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795028400] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:16,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:16,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:16,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451209583] [2022-01-18 11:10:16,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:16,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:16,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:16,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:16,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:16,076 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:16,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:16,569 INFO L93 Difference]: Finished difference Result 8635 states and 22797 transitions. [2022-01-18 11:10:16,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:10:16,570 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:16,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:16,579 INFO L225 Difference]: With dead ends: 8635 [2022-01-18 11:10:16,579 INFO L226 Difference]: Without dead ends: 8113 [2022-01-18 11:10:16,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=463, Invalid=1517, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:10:16,579 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 312 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 2617 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:16,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 2617 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:16,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8113 states. [2022-01-18 11:10:16,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8113 to 7317. [2022-01-18 11:10:16,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.645981410606889) internal successors, (19358), 7316 states have internal predecessors, (19358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:16,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19358 transitions. [2022-01-18 11:10:16,666 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19358 transitions. Word has length 109 [2022-01-18 11:10:16,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:16,666 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19358 transitions. [2022-01-18 11:10:16,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:16,666 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19358 transitions. [2022-01-18 11:10:16,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:16,673 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:16,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:16,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable512 [2022-01-18 11:10:16,673 INFO L402 AbstractCegarLoop]: === Iteration 514 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:16,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:16,673 INFO L85 PathProgramCache]: Analyzing trace with hash -537410096, now seen corresponding path program 212 times [2022-01-18 11:10:16,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:16,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347285576] [2022-01-18 11:10:16,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:16,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:16,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:16,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:16,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347285576] [2022-01-18 11:10:16,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347285576] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:16,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:16,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:16,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173680637] [2022-01-18 11:10:16,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:16,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:16,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:16,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:16,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:16,787 INFO L87 Difference]: Start difference. First operand 7317 states and 19358 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:17,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:17,200 INFO L93 Difference]: Finished difference Result 8471 states and 22367 transitions. [2022-01-18 11:10:17,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:17,200 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:17,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:17,210 INFO L225 Difference]: With dead ends: 8471 [2022-01-18 11:10:17,211 INFO L226 Difference]: Without dead ends: 7992 [2022-01-18 11:10:17,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1007, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:10:17,211 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 246 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:17,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2139 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:17,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2022-01-18 11:10:17,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 7321. [2022-01-18 11:10:17,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6454918032786887) internal successors, (19365), 7320 states have internal predecessors, (19365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:17,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19365 transitions. [2022-01-18 11:10:17,304 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19365 transitions. Word has length 109 [2022-01-18 11:10:17,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:17,304 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19365 transitions. [2022-01-18 11:10:17,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:17,304 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19365 transitions. [2022-01-18 11:10:17,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:17,312 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:17,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:17,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable513 [2022-01-18 11:10:17,312 INFO L402 AbstractCegarLoop]: === Iteration 515 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:17,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:17,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1090113022, now seen corresponding path program 213 times [2022-01-18 11:10:17,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:17,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469138771] [2022-01-18 11:10:17,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:17,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:17,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:17,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:17,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469138771] [2022-01-18 11:10:17,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469138771] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:17,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:17,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:17,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602192862] [2022-01-18 11:10:17,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:17,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:17,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:17,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:17,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:17,424 INFO L87 Difference]: Start difference. First operand 7321 states and 19365 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:17,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:17,837 INFO L93 Difference]: Finished difference Result 8405 states and 22190 transitions. [2022-01-18 11:10:17,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:10:17,837 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:17,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:17,847 INFO L225 Difference]: With dead ends: 8405 [2022-01-18 11:10:17,847 INFO L226 Difference]: Without dead ends: 7917 [2022-01-18 11:10:17,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1081, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:10:17,848 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 220 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:17,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2630 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:17,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7917 states. [2022-01-18 11:10:17,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7917 to 7309. [2022-01-18 11:10:17,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.646414887794198) internal successors, (19340), 7308 states have internal predecessors, (19340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:17,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-01-18 11:10:17,940 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-01-18 11:10:17,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:17,941 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-01-18 11:10:17,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:17,941 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-01-18 11:10:17,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:17,948 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:17,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:17,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable514 [2022-01-18 11:10:17,948 INFO L402 AbstractCegarLoop]: === Iteration 516 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:17,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:17,949 INFO L85 PathProgramCache]: Analyzing trace with hash -192231078, now seen corresponding path program 214 times [2022-01-18 11:10:17,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:17,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36743371] [2022-01-18 11:10:17,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:17,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:18,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:18,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:18,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36743371] [2022-01-18 11:10:18,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36743371] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:18,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:18,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:18,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607753763] [2022-01-18 11:10:18,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:18,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:18,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:18,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:18,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:18,066 INFO L87 Difference]: Start difference. First operand 7309 states and 19340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:18,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:18,723 INFO L93 Difference]: Finished difference Result 8628 states and 22759 transitions. [2022-01-18 11:10:18,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:10:18,724 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:18,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:18,733 INFO L225 Difference]: With dead ends: 8628 [2022-01-18 11:10:18,733 INFO L226 Difference]: Without dead ends: 8063 [2022-01-18 11:10:18,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=611, Invalid=1839, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 11:10:18,734 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 366 mSDsluCounter, 2655 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 2825 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:18,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 2825 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:18,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8063 states. [2022-01-18 11:10:18,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8063 to 7313. [2022-01-18 11:10:18,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6459245076586435) internal successors, (19347), 7312 states have internal predecessors, (19347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:18,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19347 transitions. [2022-01-18 11:10:18,819 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19347 transitions. Word has length 109 [2022-01-18 11:10:18,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:18,819 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19347 transitions. [2022-01-18 11:10:18,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:18,819 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19347 transitions. [2022-01-18 11:10:18,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:18,826 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:18,826 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:18,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable515 [2022-01-18 11:10:18,826 INFO L402 AbstractCegarLoop]: === Iteration 517 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:18,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:18,826 INFO L85 PathProgramCache]: Analyzing trace with hash 672199984, now seen corresponding path program 215 times [2022-01-18 11:10:18,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:18,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987961315] [2022-01-18 11:10:18,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:18,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:18,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:18,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:18,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987961315] [2022-01-18 11:10:18,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987961315] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:18,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:18,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:18,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224346228] [2022-01-18 11:10:18,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:18,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:18,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:18,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:18,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:18,940 INFO L87 Difference]: Start difference. First operand 7313 states and 19347 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:19,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:19,488 INFO L93 Difference]: Finished difference Result 8515 states and 22463 transitions. [2022-01-18 11:10:19,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:10:19,488 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:19,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:19,497 INFO L225 Difference]: With dead ends: 8515 [2022-01-18 11:10:19,497 INFO L226 Difference]: Without dead ends: 7993 [2022-01-18 11:10:19,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1508, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:10:19,498 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 305 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:19,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 2567 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:19,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7993 states. [2022-01-18 11:10:19,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7993 to 7317. [2022-01-18 11:10:19,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6454346637506836) internal successors, (19354), 7316 states have internal predecessors, (19354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:19,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19354 transitions. [2022-01-18 11:10:19,583 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19354 transitions. Word has length 109 [2022-01-18 11:10:19,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:19,583 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19354 transitions. [2022-01-18 11:10:19,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:19,584 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19354 transitions. [2022-01-18 11:10:19,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:19,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:19,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:19,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable516 [2022-01-18 11:10:19,591 INFO L402 AbstractCegarLoop]: === Iteration 518 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:19,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:19,591 INFO L85 PathProgramCache]: Analyzing trace with hash -885715366, now seen corresponding path program 216 times [2022-01-18 11:10:19,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:19,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753063919] [2022-01-18 11:10:19,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:19,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:19,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:19,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:19,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753063919] [2022-01-18 11:10:19,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753063919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:19,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:19,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:19,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147217643] [2022-01-18 11:10:19,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:19,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:19,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:19,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:19,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:19,705 INFO L87 Difference]: Start difference. First operand 7317 states and 19354 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:20,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:20,101 INFO L93 Difference]: Finished difference Result 8375 states and 22099 transitions. [2022-01-18 11:10:20,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:20,102 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:20,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:20,110 INFO L225 Difference]: With dead ends: 8375 [2022-01-18 11:10:20,110 INFO L226 Difference]: Without dead ends: 7896 [2022-01-18 11:10:20,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:10:20,111 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 258 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:20,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 2166 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:20,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7896 states. [2022-01-18 11:10:20,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7896 to 7321. [2022-01-18 11:10:20,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6449453551912567) internal successors, (19361), 7320 states have internal predecessors, (19361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:20,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19361 transitions. [2022-01-18 11:10:20,193 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19361 transitions. Word has length 109 [2022-01-18 11:10:20,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:20,194 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19361 transitions. [2022-01-18 11:10:20,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:20,194 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19361 transitions. [2022-01-18 11:10:20,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:20,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:20,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:20,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable517 [2022-01-18 11:10:20,201 INFO L402 AbstractCegarLoop]: === Iteration 519 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:20,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:20,201 INFO L85 PathProgramCache]: Analyzing trace with hash 741807752, now seen corresponding path program 217 times [2022-01-18 11:10:20,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:20,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886790089] [2022-01-18 11:10:20,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:20,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:20,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:20,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:20,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886790089] [2022-01-18 11:10:20,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886790089] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:20,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:20,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:20,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176052357] [2022-01-18 11:10:20,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:20,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:20,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:20,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:20,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:20,316 INFO L87 Difference]: Start difference. First operand 7321 states and 19361 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:20,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:20,720 INFO L93 Difference]: Finished difference Result 8265 states and 21801 transitions. [2022-01-18 11:10:20,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:10:20,721 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:20,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:20,732 INFO L225 Difference]: With dead ends: 8265 [2022-01-18 11:10:20,732 INFO L226 Difference]: Without dead ends: 7765 [2022-01-18 11:10:20,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:10:20,732 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 207 mSDsluCounter, 2229 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:20,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 2411 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:20,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7765 states. [2022-01-18 11:10:20,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7765 to 7297. [2022-01-18 11:10:20,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7297 states, 7296 states have (on average 2.64734100877193) internal successors, (19315), 7296 states have internal predecessors, (19315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:20,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19315 transitions. [2022-01-18 11:10:20,835 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19315 transitions. Word has length 109 [2022-01-18 11:10:20,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:20,836 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19315 transitions. [2022-01-18 11:10:20,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:20,836 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19315 transitions. [2022-01-18 11:10:20,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:20,843 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:20,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:20,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable518 [2022-01-18 11:10:20,844 INFO L402 AbstractCegarLoop]: === Iteration 520 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:20,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:20,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1547592560, now seen corresponding path program 218 times [2022-01-18 11:10:20,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:20,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411284253] [2022-01-18 11:10:20,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:20,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:20,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:20,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:20,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411284253] [2022-01-18 11:10:20,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411284253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:20,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:20,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:20,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966971353] [2022-01-18 11:10:20,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:20,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:20,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:20,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:20,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:20,964 INFO L87 Difference]: Start difference. First operand 7297 states and 19315 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:21,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:21,381 INFO L93 Difference]: Finished difference Result 8303 states and 21917 transitions. [2022-01-18 11:10:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:10:21,381 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:21,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:21,391 INFO L225 Difference]: With dead ends: 8303 [2022-01-18 11:10:21,391 INFO L226 Difference]: Without dead ends: 7824 [2022-01-18 11:10:21,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=900, Unknown=0, NotChecked=0, Total=1190 [2022-01-18 11:10:21,391 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 214 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2651 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:21,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2651 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:21,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7824 states. [2022-01-18 11:10:21,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7824 to 7317. [2022-01-18 11:10:21,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6470749043193003) internal successors, (19366), 7316 states have internal predecessors, (19366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:21,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-01-18 11:10:21,482 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-01-18 11:10:21,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:21,483 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-01-18 11:10:21,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:21,483 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-01-18 11:10:21,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:21,490 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:21,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:21,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable519 [2022-01-18 11:10:21,490 INFO L402 AbstractCegarLoop]: === Iteration 521 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:21,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:21,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1119851618, now seen corresponding path program 219 times [2022-01-18 11:10:21,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:21,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339444404] [2022-01-18 11:10:21,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:21,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:21,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:21,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:21,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339444404] [2022-01-18 11:10:21,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339444404] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:21,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:21,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:21,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736341181] [2022-01-18 11:10:21,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:21,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:21,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:21,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:21,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:21,611 INFO L87 Difference]: Start difference. First operand 7317 states and 19366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:22,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:22,069 INFO L93 Difference]: Finished difference Result 8269 states and 21828 transitions. [2022-01-18 11:10:22,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:22,070 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:22,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:22,079 INFO L225 Difference]: With dead ends: 8269 [2022-01-18 11:10:22,079 INFO L226 Difference]: Without dead ends: 7789 [2022-01-18 11:10:22,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 11:10:22,079 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 205 mSDsluCounter, 2453 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2639 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:22,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 2639 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:22,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7789 states. [2022-01-18 11:10:22,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7789 to 7313. [2022-01-18 11:10:22,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6470185995623634) internal successors, (19355), 7312 states have internal predecessors, (19355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:22,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-01-18 11:10:22,165 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-01-18 11:10:22,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:22,166 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-01-18 11:10:22,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:22,166 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-01-18 11:10:22,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:22,173 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:22,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:22,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable520 [2022-01-18 11:10:22,173 INFO L402 AbstractCegarLoop]: === Iteration 522 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:22,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:22,173 INFO L85 PathProgramCache]: Analyzing trace with hash 2054058338, now seen corresponding path program 220 times [2022-01-18 11:10:22,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:22,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305518586] [2022-01-18 11:10:22,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:22,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:22,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:22,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:22,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305518586] [2022-01-18 11:10:22,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305518586] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:22,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:22,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:22,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483528826] [2022-01-18 11:10:22,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:22,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:22,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:22,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:22,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:22,288 INFO L87 Difference]: Start difference. First operand 7313 states and 19355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:22,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:22,820 INFO L93 Difference]: Finished difference Result 8305 states and 21923 transitions. [2022-01-18 11:10:22,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:10:22,820 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:22,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:22,829 INFO L225 Difference]: With dead ends: 8305 [2022-01-18 11:10:22,829 INFO L226 Difference]: Without dead ends: 7785 [2022-01-18 11:10:22,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=502, Invalid=1660, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 11:10:22,829 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 267 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 2724 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:22,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 2724 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:22,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7785 states. [2022-01-18 11:10:22,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7785 to 7309. [2022-01-18 11:10:22,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6469622331691296) internal successors, (19344), 7308 states have internal predecessors, (19344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:22,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19344 transitions. [2022-01-18 11:10:22,914 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19344 transitions. Word has length 109 [2022-01-18 11:10:22,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:22,914 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19344 transitions. [2022-01-18 11:10:22,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:22,914 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19344 transitions. [2022-01-18 11:10:22,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:22,921 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:22,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:22,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable521 [2022-01-18 11:10:22,921 INFO L402 AbstractCegarLoop]: === Iteration 523 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:22,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:22,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1528922802, now seen corresponding path program 221 times [2022-01-18 11:10:22,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:22,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723361074] [2022-01-18 11:10:22,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:22,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:23,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:23,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:23,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723361074] [2022-01-18 11:10:23,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723361074] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:23,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:23,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:23,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587367857] [2022-01-18 11:10:23,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:23,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:23,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:23,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:23,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:23,036 INFO L87 Difference]: Start difference. First operand 7309 states and 19344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:23,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:23,626 INFO L93 Difference]: Finished difference Result 8281 states and 21857 transitions. [2022-01-18 11:10:23,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:10:23,626 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:23,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:23,635 INFO L225 Difference]: With dead ends: 8281 [2022-01-18 11:10:23,635 INFO L226 Difference]: Without dead ends: 7721 [2022-01-18 11:10:23,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=1998, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:10:23,636 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 342 mSDsluCounter, 2513 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 2704 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:23,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 2704 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:23,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7721 states. [2022-01-18 11:10:23,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7721 to 7305. [2022-01-18 11:10:23,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.646905805038335) internal successors, (19333), 7304 states have internal predecessors, (19333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:23,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19333 transitions. [2022-01-18 11:10:23,742 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19333 transitions. Word has length 109 [2022-01-18 11:10:23,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:23,742 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19333 transitions. [2022-01-18 11:10:23,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:23,743 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19333 transitions. [2022-01-18 11:10:23,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:23,749 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:23,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:23,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable522 [2022-01-18 11:10:23,749 INFO L402 AbstractCegarLoop]: === Iteration 524 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:23,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:23,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1338609398, now seen corresponding path program 222 times [2022-01-18 11:10:23,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:23,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589737801] [2022-01-18 11:10:23,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:23,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:23,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:23,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:23,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589737801] [2022-01-18 11:10:23,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589737801] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:23,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:23,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:23,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534189143] [2022-01-18 11:10:23,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:23,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:23,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:23,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:23,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:23,864 INFO L87 Difference]: Start difference. First operand 7305 states and 19333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:24,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:24,251 INFO L93 Difference]: Finished difference Result 8351 states and 22049 transitions. [2022-01-18 11:10:24,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:10:24,251 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:24,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:24,261 INFO L225 Difference]: With dead ends: 8351 [2022-01-18 11:10:24,261 INFO L226 Difference]: Without dead ends: 7872 [2022-01-18 11:10:24,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:10:24,262 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 240 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 2250 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:24,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 2250 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:24,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7872 states. [2022-01-18 11:10:24,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7872 to 7317. [2022-01-18 11:10:24,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:24,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-01-18 11:10:24,359 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-01-18 11:10:24,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:24,359 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-01-18 11:10:24,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:24,360 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-01-18 11:10:24,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:24,367 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:24,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:24,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable523 [2022-01-18 11:10:24,367 INFO L402 AbstractCegarLoop]: === Iteration 525 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:24,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:24,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1328834780, now seen corresponding path program 223 times [2022-01-18 11:10:24,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:24,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511979725] [2022-01-18 11:10:24,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:24,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:24,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:24,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:24,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511979725] [2022-01-18 11:10:24,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511979725] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:24,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:24,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:24,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284846995] [2022-01-18 11:10:24,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:24,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:24,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:24,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:24,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:24,479 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:24,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:24,903 INFO L93 Difference]: Finished difference Result 8309 states and 21938 transitions. [2022-01-18 11:10:24,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:24,903 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:24,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:24,912 INFO L225 Difference]: With dead ends: 8309 [2022-01-18 11:10:24,913 INFO L226 Difference]: Without dead ends: 7829 [2022-01-18 11:10:24,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:10:24,913 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 263 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2474 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:24,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 2474 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:24,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7829 states. [2022-01-18 11:10:24,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7829 to 7313. [2022-01-18 11:10:24,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:25,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-01-18 11:10:25,004 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-01-18 11:10:25,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:25,005 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-01-18 11:10:25,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:25,005 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-01-18 11:10:25,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:25,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:25,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:25,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable524 [2022-01-18 11:10:25,013 INFO L402 AbstractCegarLoop]: === Iteration 526 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:25,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:25,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1845075176, now seen corresponding path program 224 times [2022-01-18 11:10:25,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:25,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192900031] [2022-01-18 11:10:25,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:25,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:25,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:25,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:25,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192900031] [2022-01-18 11:10:25,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192900031] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:25,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:25,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:25,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19428212] [2022-01-18 11:10:25,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:25,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:25,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:25,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:25,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:25,126 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:25,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:25,638 INFO L93 Difference]: Finished difference Result 8437 states and 22270 transitions. [2022-01-18 11:10:25,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:10:25,638 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:25,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:25,647 INFO L225 Difference]: With dead ends: 8437 [2022-01-18 11:10:25,647 INFO L226 Difference]: Without dead ends: 7917 [2022-01-18 11:10:25,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:10:25,648 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 345 mSDsluCounter, 2294 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:25,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 2478 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:25,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7917 states. [2022-01-18 11:10:25,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7917 to 7309. [2022-01-18 11:10:25,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.646414887794198) internal successors, (19340), 7308 states have internal predecessors, (19340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:25,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-01-18 11:10:25,732 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-01-18 11:10:25,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:25,732 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-01-18 11:10:25,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:25,733 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-01-18 11:10:25,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:25,740 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:25,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:25,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable525 [2022-01-18 11:10:25,740 INFO L402 AbstractCegarLoop]: === Iteration 527 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:25,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:25,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1917704900, now seen corresponding path program 225 times [2022-01-18 11:10:25,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:25,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86077384] [2022-01-18 11:10:25,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:25,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:25,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:25,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:25,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86077384] [2022-01-18 11:10:25,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86077384] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:25,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:25,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:25,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906352464] [2022-01-18 11:10:25,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:25,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:25,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:25,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:25,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:25,855 INFO L87 Difference]: Start difference. First operand 7309 states and 19340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:26,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:26,336 INFO L93 Difference]: Finished difference Result 8439 states and 22262 transitions. [2022-01-18 11:10:26,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:10:26,337 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:26,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:26,346 INFO L225 Difference]: With dead ends: 8439 [2022-01-18 11:10:26,346 INFO L226 Difference]: Without dead ends: 7917 [2022-01-18 11:10:26,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=441, Invalid=1451, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:10:26,347 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 327 mSDsluCounter, 2397 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 2573 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:26,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 2573 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:26,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7917 states. [2022-01-18 11:10:26,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7917 to 7313. [2022-01-18 11:10:26,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6459245076586435) internal successors, (19347), 7312 states have internal predecessors, (19347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:26,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19347 transitions. [2022-01-18 11:10:26,430 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19347 transitions. Word has length 109 [2022-01-18 11:10:26,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:26,430 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19347 transitions. [2022-01-18 11:10:26,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:26,431 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19347 transitions. [2022-01-18 11:10:26,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:26,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:26,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:26,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable526 [2022-01-18 11:10:26,438 INFO L402 AbstractCegarLoop]: === Iteration 528 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:26,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:26,438 INFO L85 PathProgramCache]: Analyzing trace with hash 359789550, now seen corresponding path program 226 times [2022-01-18 11:10:26,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:26,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088287885] [2022-01-18 11:10:26,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:26,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:26,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:26,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:26,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088287885] [2022-01-18 11:10:26,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088287885] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:26,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:26,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:26,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679016844] [2022-01-18 11:10:26,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:26,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:26,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:26,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:26,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:26,556 INFO L87 Difference]: Start difference. First operand 7313 states and 19347 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:26,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:26,977 INFO L93 Difference]: Finished difference Result 8291 states and 21876 transitions. [2022-01-18 11:10:26,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:26,977 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:26,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:26,986 INFO L225 Difference]: With dead ends: 8291 [2022-01-18 11:10:26,986 INFO L226 Difference]: Without dead ends: 7812 [2022-01-18 11:10:26,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=1008, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:10:26,986 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 228 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 2447 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:26,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 2447 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:26,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7812 states. [2022-01-18 11:10:27,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7812 to 7317. [2022-01-18 11:10:27,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6454346637506836) internal successors, (19354), 7316 states have internal predecessors, (19354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:27,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19354 transitions. [2022-01-18 11:10:27,072 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19354 transitions. Word has length 109 [2022-01-18 11:10:27,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:27,072 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19354 transitions. [2022-01-18 11:10:27,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:27,072 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19354 transitions. [2022-01-18 11:10:27,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:27,079 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:27,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:27,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable527 [2022-01-18 11:10:27,080 INFO L402 AbstractCegarLoop]: === Iteration 529 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:27,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:27,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1987312668, now seen corresponding path program 227 times [2022-01-18 11:10:27,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:27,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571762683] [2022-01-18 11:10:27,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:27,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:27,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:27,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:27,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571762683] [2022-01-18 11:10:27,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571762683] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:27,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:27,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:27,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878635751] [2022-01-18 11:10:27,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:27,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:27,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:27,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:27,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:27,197 INFO L87 Difference]: Start difference. First operand 7317 states and 19354 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:27,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:27,604 INFO L93 Difference]: Finished difference Result 8209 states and 21655 transitions. [2022-01-18 11:10:27,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:10:27,605 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:27,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:27,614 INFO L225 Difference]: With dead ends: 8209 [2022-01-18 11:10:27,615 INFO L226 Difference]: Without dead ends: 7717 [2022-01-18 11:10:27,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:10:27,615 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 236 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2074 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:27,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2074 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:27,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7717 states. [2022-01-18 11:10:27,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7717 to 7301. [2022-01-18 11:10:27,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7301 states, 7300 states have (on average 2.646849315068493) internal successors, (19322), 7300 states have internal predecessors, (19322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:27,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 19322 transitions. [2022-01-18 11:10:27,707 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 19322 transitions. Word has length 109 [2022-01-18 11:10:27,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:27,707 INFO L470 AbstractCegarLoop]: Abstraction has 7301 states and 19322 transitions. [2022-01-18 11:10:27,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:27,707 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 19322 transitions. [2022-01-18 11:10:27,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:27,714 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:27,714 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:27,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable528 [2022-01-18 11:10:27,714 INFO L402 AbstractCegarLoop]: === Iteration 530 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:27,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:27,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1290573294, now seen corresponding path program 228 times [2022-01-18 11:10:27,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:27,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037984885] [2022-01-18 11:10:27,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:27,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:27,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:27,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:27,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037984885] [2022-01-18 11:10:27,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037984885] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:27,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:27,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:27,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505997837] [2022-01-18 11:10:27,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:27,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:27,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:27,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:27,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:27,834 INFO L87 Difference]: Start difference. First operand 7301 states and 19322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:28,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:28,248 INFO L93 Difference]: Finished difference Result 8387 states and 22148 transitions. [2022-01-18 11:10:28,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:10:28,248 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:28,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:28,258 INFO L225 Difference]: With dead ends: 8387 [2022-01-18 11:10:28,258 INFO L226 Difference]: Without dead ends: 7908 [2022-01-18 11:10:28,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=301, Invalid=959, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:10:28,259 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 243 mSDsluCounter, 2258 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:28,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 2433 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:28,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7908 states. [2022-01-18 11:10:28,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7908 to 7317. [2022-01-18 11:10:28,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:28,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-01-18 11:10:28,352 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-01-18 11:10:28,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:28,352 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-01-18 11:10:28,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:28,352 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-01-18 11:10:28,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:28,360 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:28,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:28,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable529 [2022-01-18 11:10:28,360 INFO L402 AbstractCegarLoop]: === Iteration 531 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:28,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:28,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1376870884, now seen corresponding path program 229 times [2022-01-18 11:10:28,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:28,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041559137] [2022-01-18 11:10:28,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:28,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:28,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:28,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:28,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041559137] [2022-01-18 11:10:28,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041559137] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:28,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:28,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:28,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645503006] [2022-01-18 11:10:28,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:28,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:28,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:28,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:28,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:28,476 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:28,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:28,919 INFO L93 Difference]: Finished difference Result 8345 states and 22037 transitions. [2022-01-18 11:10:28,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:28,919 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:28,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:28,928 INFO L225 Difference]: With dead ends: 8345 [2022-01-18 11:10:28,928 INFO L226 Difference]: Without dead ends: 7865 [2022-01-18 11:10:28,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:10:28,928 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 227 mSDsluCounter, 2417 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2598 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:28,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 2598 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:28,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7865 states. [2022-01-18 11:10:28,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7865 to 7313. [2022-01-18 11:10:29,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:29,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-01-18 11:10:29,012 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-01-18 11:10:29,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:29,013 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-01-18 11:10:29,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:29,013 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-01-18 11:10:29,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:29,020 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:29,020 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:29,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable530 [2022-01-18 11:10:29,020 INFO L402 AbstractCegarLoop]: === Iteration 532 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:29,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:29,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1797039072, now seen corresponding path program 230 times [2022-01-18 11:10:29,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:29,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499959617] [2022-01-18 11:10:29,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:29,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:29,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:29,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:29,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499959617] [2022-01-18 11:10:29,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499959617] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:29,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:29,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:29,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824725969] [2022-01-18 11:10:29,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:29,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:29,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:29,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:29,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:29,134 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:29,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:29,632 INFO L93 Difference]: Finished difference Result 8453 states and 22314 transitions. [2022-01-18 11:10:29,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 11:10:29,632 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:29,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:29,642 INFO L225 Difference]: With dead ends: 8453 [2022-01-18 11:10:29,642 INFO L226 Difference]: Without dead ends: 7933 [2022-01-18 11:10:29,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=479, Invalid=1501, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:10:29,642 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 306 mSDsluCounter, 2423 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 2602 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:29,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 2602 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:29,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7933 states. [2022-01-18 11:10:29,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7933 to 7309. [2022-01-18 11:10:29,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.646414887794198) internal successors, (19340), 7308 states have internal predecessors, (19340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:29,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-01-18 11:10:29,727 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-01-18 11:10:29,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:29,727 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-01-18 11:10:29,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:29,727 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-01-18 11:10:29,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:29,734 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:29,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:29,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable531 [2022-01-18 11:10:29,734 INFO L402 AbstractCegarLoop]: === Iteration 533 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:29,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:29,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1869668796, now seen corresponding path program 231 times [2022-01-18 11:10:29,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:29,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878449198] [2022-01-18 11:10:29,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:29,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:29,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:29,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:29,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878449198] [2022-01-18 11:10:29,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878449198] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:29,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:29,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:29,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988158720] [2022-01-18 11:10:29,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:29,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:29,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:29,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:29,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:29,852 INFO L87 Difference]: Start difference. First operand 7309 states and 19340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:30,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:30,353 INFO L93 Difference]: Finished difference Result 8551 states and 22570 transitions. [2022-01-18 11:10:30,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:10:30,354 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:30,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:30,363 INFO L225 Difference]: With dead ends: 8551 [2022-01-18 11:10:30,363 INFO L226 Difference]: Without dead ends: 8029 [2022-01-18 11:10:30,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1528, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:10:30,364 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 339 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:30,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [339 Valid, 2581 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:30,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8029 states. [2022-01-18 11:10:30,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8029 to 7313. [2022-01-18 11:10:30,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6459245076586435) internal successors, (19347), 7312 states have internal predecessors, (19347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:30,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19347 transitions. [2022-01-18 11:10:30,449 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19347 transitions. Word has length 109 [2022-01-18 11:10:30,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:30,450 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19347 transitions. [2022-01-18 11:10:30,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:30,450 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19347 transitions. [2022-01-18 11:10:30,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:30,457 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:30,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:30,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable532 [2022-01-18 11:10:30,457 INFO L402 AbstractCegarLoop]: === Iteration 534 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:30,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:30,457 INFO L85 PathProgramCache]: Analyzing trace with hash 311753446, now seen corresponding path program 232 times [2022-01-18 11:10:30,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:30,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687502651] [2022-01-18 11:10:30,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:30,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:30,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:30,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:30,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687502651] [2022-01-18 11:10:30,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687502651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:30,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:30,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:30,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809762062] [2022-01-18 11:10:30,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:30,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:30,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:30,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:30,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:30,575 INFO L87 Difference]: Start difference. First operand 7313 states and 19347 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:30,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:30,978 INFO L93 Difference]: Finished difference Result 8387 states and 22140 transitions. [2022-01-18 11:10:30,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:30,978 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:30,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:30,987 INFO L225 Difference]: With dead ends: 8387 [2022-01-18 11:10:30,987 INFO L226 Difference]: Without dead ends: 7908 [2022-01-18 11:10:30,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=319, Invalid=1013, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:10:30,988 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 237 mSDsluCounter, 2072 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 2257 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:30,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 2257 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:30,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7908 states. [2022-01-18 11:10:31,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7908 to 7317. [2022-01-18 11:10:31,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6454346637506836) internal successors, (19354), 7316 states have internal predecessors, (19354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:31,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19354 transitions. [2022-01-18 11:10:31,074 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19354 transitions. Word has length 109 [2022-01-18 11:10:31,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:31,074 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19354 transitions. [2022-01-18 11:10:31,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:31,074 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19354 transitions. [2022-01-18 11:10:31,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:31,081 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:31,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:31,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable533 [2022-01-18 11:10:31,081 INFO L402 AbstractCegarLoop]: === Iteration 535 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:31,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:31,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1939276564, now seen corresponding path program 233 times [2022-01-18 11:10:31,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:31,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917280849] [2022-01-18 11:10:31,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:31,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:31,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:31,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:31,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917280849] [2022-01-18 11:10:31,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917280849] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:31,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:31,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:31,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288798532] [2022-01-18 11:10:31,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:31,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:31,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:31,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:31,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:31,198 INFO L87 Difference]: Start difference. First operand 7317 states and 19354 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:31,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:31,609 INFO L93 Difference]: Finished difference Result 8321 states and 21963 transitions. [2022-01-18 11:10:31,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:10:31,609 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:31,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:31,619 INFO L225 Difference]: With dead ends: 8321 [2022-01-18 11:10:31,619 INFO L226 Difference]: Without dead ends: 7833 [2022-01-18 11:10:31,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:10:31,619 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 245 mSDsluCounter, 2077 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:31,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 2263 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:31,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7833 states. [2022-01-18 11:10:31,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7833 to 7305. [2022-01-18 11:10:31,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.646358159912377) internal successors, (19329), 7304 states have internal predecessors, (19329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:31,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19329 transitions. [2022-01-18 11:10:31,745 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19329 transitions. Word has length 109 [2022-01-18 11:10:31,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:31,745 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19329 transitions. [2022-01-18 11:10:31,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:31,745 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19329 transitions. [2022-01-18 11:10:31,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:31,752 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:31,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:31,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable534 [2022-01-18 11:10:31,753 INFO L402 AbstractCegarLoop]: === Iteration 536 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:31,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:31,753 INFO L85 PathProgramCache]: Analyzing trace with hash 656932464, now seen corresponding path program 234 times [2022-01-18 11:10:31,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:31,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404480280] [2022-01-18 11:10:31,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:31,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:31,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:31,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:31,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404480280] [2022-01-18 11:10:31,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404480280] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:31,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:31,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:31,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414797699] [2022-01-18 11:10:31,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:31,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:31,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:31,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:31,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:31,869 INFO L87 Difference]: Start difference. First operand 7305 states and 19329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:32,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:32,535 INFO L93 Difference]: Finished difference Result 8572 states and 22609 transitions. [2022-01-18 11:10:32,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 11:10:32,535 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:32,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:32,545 INFO L225 Difference]: With dead ends: 8572 [2022-01-18 11:10:32,545 INFO L226 Difference]: Without dead ends: 8007 [2022-01-18 11:10:32,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=616, Invalid=1934, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 11:10:32,546 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 365 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:32,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 2601 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:32,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8007 states. [2022-01-18 11:10:32,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8007 to 7309. [2022-01-18 11:10:32,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6458675424192664) internal successors, (19336), 7308 states have internal predecessors, (19336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:32,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19336 transitions. [2022-01-18 11:10:32,643 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19336 transitions. Word has length 109 [2022-01-18 11:10:32,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:32,643 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19336 transitions. [2022-01-18 11:10:32,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:32,643 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19336 transitions. [2022-01-18 11:10:32,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:32,650 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:32,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:32,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable535 [2022-01-18 11:10:32,651 INFO L402 AbstractCegarLoop]: === Iteration 537 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:32,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:32,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1521363526, now seen corresponding path program 235 times [2022-01-18 11:10:32,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:32,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709295779] [2022-01-18 11:10:32,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:32,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:32,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:32,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:32,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709295779] [2022-01-18 11:10:32,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709295779] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:32,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:32,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:32,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006577054] [2022-01-18 11:10:32,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:32,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:32,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:32,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:32,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:32,765 INFO L87 Difference]: Start difference. First operand 7309 states and 19336 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:33,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:33,264 INFO L93 Difference]: Finished difference Result 8455 states and 22302 transitions. [2022-01-18 11:10:33,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:10:33,264 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:33,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:33,273 INFO L225 Difference]: With dead ends: 8455 [2022-01-18 11:10:33,273 INFO L226 Difference]: Without dead ends: 7933 [2022-01-18 11:10:33,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1606, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:10:33,274 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 336 mSDsluCounter, 2399 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:33,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 2576 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:33,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7933 states. [2022-01-18 11:10:33,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7933 to 7313. [2022-01-18 11:10:33,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6453774617067833) internal successors, (19343), 7312 states have internal predecessors, (19343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:33,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19343 transitions. [2022-01-18 11:10:33,358 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19343 transitions. Word has length 109 [2022-01-18 11:10:33,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:33,358 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19343 transitions. [2022-01-18 11:10:33,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:33,358 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19343 transitions. [2022-01-18 11:10:33,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:33,365 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:33,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:33,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable536 [2022-01-18 11:10:33,366 INFO L402 AbstractCegarLoop]: === Iteration 538 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:33,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:33,366 INFO L85 PathProgramCache]: Analyzing trace with hash -36551824, now seen corresponding path program 236 times [2022-01-18 11:10:33,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:33,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427898559] [2022-01-18 11:10:33,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:33,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:33,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:33,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:33,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427898559] [2022-01-18 11:10:33,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427898559] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:33,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:33,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:33,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501577282] [2022-01-18 11:10:33,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:33,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:33,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:33,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:33,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:33,509 INFO L87 Difference]: Start difference. First operand 7313 states and 19343 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:33,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:33,896 INFO L93 Difference]: Finished difference Result 8307 states and 21916 transitions. [2022-01-18 11:10:33,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:33,896 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:33,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:33,908 INFO L225 Difference]: With dead ends: 8307 [2022-01-18 11:10:33,908 INFO L226 Difference]: Without dead ends: 7828 [2022-01-18 11:10:33,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:10:33,909 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 233 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2239 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:33,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2239 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:33,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7828 states. [2022-01-18 11:10:33,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7828 to 7317. [2022-01-18 11:10:33,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.644887916894478) internal successors, (19350), 7316 states have internal predecessors, (19350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:33,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19350 transitions. [2022-01-18 11:10:33,996 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19350 transitions. Word has length 109 [2022-01-18 11:10:33,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:33,996 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19350 transitions. [2022-01-18 11:10:33,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:33,996 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19350 transitions. [2022-01-18 11:10:34,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:34,003 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:34,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:34,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable537 [2022-01-18 11:10:34,003 INFO L402 AbstractCegarLoop]: === Iteration 539 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:34,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:34,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1590971294, now seen corresponding path program 237 times [2022-01-18 11:10:34,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:34,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471358632] [2022-01-18 11:10:34,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:34,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:34,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:34,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:34,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471358632] [2022-01-18 11:10:34,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471358632] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:34,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:34,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:34,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608751598] [2022-01-18 11:10:34,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:34,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:34,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:34,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:34,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:34,117 INFO L87 Difference]: Start difference. First operand 7317 states and 19350 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:34,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:34,500 INFO L93 Difference]: Finished difference Result 8209 states and 21651 transitions. [2022-01-18 11:10:34,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:10:34,500 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:34,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:34,510 INFO L225 Difference]: With dead ends: 8209 [2022-01-18 11:10:34,510 INFO L226 Difference]: Without dead ends: 7713 [2022-01-18 11:10:34,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:10:34,510 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 234 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:34,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 2422 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:34,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7713 states. [2022-01-18 11:10:34,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7713 to 7297. [2022-01-18 11:10:34,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7297 states, 7296 states have (on average 2.6467927631578947) internal successors, (19311), 7296 states have internal predecessors, (19311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:34,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19311 transitions. [2022-01-18 11:10:34,596 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19311 transitions. Word has length 109 [2022-01-18 11:10:34,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:34,596 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19311 transitions. [2022-01-18 11:10:34,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:34,596 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19311 transitions. [2022-01-18 11:10:34,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:34,603 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:34,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:34,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable538 [2022-01-18 11:10:34,603 INFO L402 AbstractCegarLoop]: === Iteration 540 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:34,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:34,604 INFO L85 PathProgramCache]: Analyzing trace with hash 187059838, now seen corresponding path program 238 times [2022-01-18 11:10:34,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:34,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101705589] [2022-01-18 11:10:34,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:34,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:34,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:34,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:34,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101705589] [2022-01-18 11:10:34,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101705589] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:34,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:34,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:34,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935386658] [2022-01-18 11:10:34,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:34,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:34,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:34,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:34,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:34,719 INFO L87 Difference]: Start difference. First operand 7297 states and 19311 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:35,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:35,097 INFO L93 Difference]: Finished difference Result 8243 states and 21752 transitions. [2022-01-18 11:10:35,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:10:35,097 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:35,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:35,106 INFO L225 Difference]: With dead ends: 8243 [2022-01-18 11:10:35,106 INFO L226 Difference]: Without dead ends: 7764 [2022-01-18 11:10:35,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:10:35,106 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 290 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:35,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2259 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:35,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7764 states. [2022-01-18 11:10:35,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7764 to 7313. [2022-01-18 11:10:35,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:35,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-01-18 11:10:35,189 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-01-18 11:10:35,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:35,189 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-01-18 11:10:35,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:35,189 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-01-18 11:10:35,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:35,196 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:35,196 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:35,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable539 [2022-01-18 11:10:35,196 INFO L402 AbstractCegarLoop]: === Iteration 541 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:35,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:35,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1814582956, now seen corresponding path program 239 times [2022-01-18 11:10:35,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:35,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266008385] [2022-01-18 11:10:35,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:35,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:35,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:35,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:35,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266008385] [2022-01-18 11:10:35,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266008385] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:35,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:35,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:35,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913500489] [2022-01-18 11:10:35,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:35,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:35,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:35,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:35,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:35,309 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:35,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:35,741 INFO L93 Difference]: Finished difference Result 8201 states and 21641 transitions. [2022-01-18 11:10:35,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:35,741 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:35,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:35,751 INFO L225 Difference]: With dead ends: 8201 [2022-01-18 11:10:35,751 INFO L226 Difference]: Without dead ends: 7721 [2022-01-18 11:10:35,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=352, Invalid=1130, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 11:10:35,752 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 225 mSDsluCounter, 2396 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 2575 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:35,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 2575 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:35,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7721 states. [2022-01-18 11:10:35,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7721 to 7309. [2022-01-18 11:10:35,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.646414887794198) internal successors, (19340), 7308 states have internal predecessors, (19340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:35,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-01-18 11:10:35,847 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-01-18 11:10:35,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:35,847 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-01-18 11:10:35,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:35,847 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-01-18 11:10:35,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:35,860 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:35,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:35,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable540 [2022-01-18 11:10:35,860 INFO L402 AbstractCegarLoop]: === Iteration 542 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:35,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:35,861 INFO L85 PathProgramCache]: Analyzing trace with hash 693525616, now seen corresponding path program 240 times [2022-01-18 11:10:35,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:35,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712886010] [2022-01-18 11:10:35,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:35,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:35,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:35,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:35,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712886010] [2022-01-18 11:10:35,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712886010] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:35,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:35,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:35,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235208200] [2022-01-18 11:10:35,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:35,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:35,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:35,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:35,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:35,981 INFO L87 Difference]: Start difference. First operand 7309 states and 19340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:36,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:36,478 INFO L93 Difference]: Finished difference Result 8189 states and 21608 transitions. [2022-01-18 11:10:36,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-18 11:10:36,478 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:36,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:36,487 INFO L225 Difference]: With dead ends: 8189 [2022-01-18 11:10:36,487 INFO L226 Difference]: Without dead ends: 7669 [2022-01-18 11:10:36,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=469, Invalid=1423, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:10:36,488 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 343 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:36,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 2430 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:36,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7669 states. [2022-01-18 11:10:36,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7669 to 7305. [2022-01-18 11:10:36,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.646358159912377) internal successors, (19329), 7304 states have internal predecessors, (19329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:36,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19329 transitions. [2022-01-18 11:10:36,578 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19329 transitions. Word has length 109 [2022-01-18 11:10:36,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:36,578 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19329 transitions. [2022-01-18 11:10:36,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:36,578 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19329 transitions. [2022-01-18 11:10:36,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:36,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:36,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:36,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable541 [2022-01-18 11:10:36,591 INFO L402 AbstractCegarLoop]: === Iteration 543 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:36,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:36,591 INFO L85 PathProgramCache]: Analyzing trace with hash 766155340, now seen corresponding path program 241 times [2022-01-18 11:10:36,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:36,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372214749] [2022-01-18 11:10:36,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:36,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:36,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:36,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:36,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372214749] [2022-01-18 11:10:36,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372214749] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:36,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:36,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:36,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439082373] [2022-01-18 11:10:36,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:36,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:36,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:36,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:36,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:36,717 INFO L87 Difference]: Start difference. First operand 7305 states and 19329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:37,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:37,237 INFO L93 Difference]: Finished difference Result 8383 states and 22112 transitions. [2022-01-18 11:10:37,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 11:10:37,238 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:37,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:37,246 INFO L225 Difference]: With dead ends: 8383 [2022-01-18 11:10:37,247 INFO L226 Difference]: Without dead ends: 7861 [2022-01-18 11:10:37,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=439, Invalid=1453, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 11:10:37,247 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 404 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 2520 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:37,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [404 Valid, 2520 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:37,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7861 states. [2022-01-18 11:10:37,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7861 to 7309. [2022-01-18 11:10:37,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6458675424192664) internal successors, (19336), 7308 states have internal predecessors, (19336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:37,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19336 transitions. [2022-01-18 11:10:37,330 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19336 transitions. Word has length 109 [2022-01-18 11:10:37,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:37,330 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19336 transitions. [2022-01-18 11:10:37,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:37,330 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19336 transitions. [2022-01-18 11:10:37,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:37,337 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:37,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:37,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable542 [2022-01-18 11:10:37,337 INFO L402 AbstractCegarLoop]: === Iteration 544 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:37,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:37,338 INFO L85 PathProgramCache]: Analyzing trace with hash -791760010, now seen corresponding path program 242 times [2022-01-18 11:10:37,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:37,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344336961] [2022-01-18 11:10:37,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:37,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:37,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:37,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:37,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344336961] [2022-01-18 11:10:37,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344336961] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:37,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:37,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:37,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20609006] [2022-01-18 11:10:37,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:37,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:37,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:37,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:37,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:37,454 INFO L87 Difference]: Start difference. First operand 7309 states and 19336 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:37,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:37,852 INFO L93 Difference]: Finished difference Result 8219 states and 21682 transitions. [2022-01-18 11:10:37,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:37,852 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:37,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:37,861 INFO L225 Difference]: With dead ends: 8219 [2022-01-18 11:10:37,861 INFO L226 Difference]: Without dead ends: 7740 [2022-01-18 11:10:37,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:10:37,862 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 320 mSDsluCounter, 2070 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:37,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 2246 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:37,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7740 states. [2022-01-18 11:10:37,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7740 to 7313. [2022-01-18 11:10:37,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6453774617067833) internal successors, (19343), 7312 states have internal predecessors, (19343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:37,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19343 transitions. [2022-01-18 11:10:37,946 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19343 transitions. Word has length 109 [2022-01-18 11:10:37,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:37,946 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19343 transitions. [2022-01-18 11:10:37,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:37,946 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19343 transitions. [2022-01-18 11:10:37,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:37,953 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:37,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:37,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable543 [2022-01-18 11:10:37,953 INFO L402 AbstractCegarLoop]: === Iteration 545 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:37,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:37,954 INFO L85 PathProgramCache]: Analyzing trace with hash 835763108, now seen corresponding path program 243 times [2022-01-18 11:10:37,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:37,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402188644] [2022-01-18 11:10:37,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:37,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:38,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:38,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:38,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402188644] [2022-01-18 11:10:38,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402188644] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:38,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:38,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:38,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923883452] [2022-01-18 11:10:38,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:38,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:38,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:38,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:38,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:38,071 INFO L87 Difference]: Start difference. First operand 7313 states and 19343 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:38,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:38,469 INFO L93 Difference]: Finished difference Result 8153 states and 21505 transitions. [2022-01-18 11:10:38,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-18 11:10:38,469 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:38,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:38,478 INFO L225 Difference]: With dead ends: 8153 [2022-01-18 11:10:38,478 INFO L226 Difference]: Without dead ends: 7665 [2022-01-18 11:10:38,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=331, Invalid=1001, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:10:38,478 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 299 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 2165 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:38,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 2165 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:38,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7665 states. [2022-01-18 11:10:38,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7665 to 7301. [2022-01-18 11:10:38,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7301 states, 7300 states have (on average 2.646301369863014) internal successors, (19318), 7300 states have internal predecessors, (19318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:38,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 19318 transitions. [2022-01-18 11:10:38,560 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 19318 transitions. Word has length 109 [2022-01-18 11:10:38,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:38,560 INFO L470 AbstractCegarLoop]: Abstraction has 7301 states and 19318 transitions. [2022-01-18 11:10:38,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:38,560 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 19318 transitions. [2022-01-18 11:10:38,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:38,567 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:38,567 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:38,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable544 [2022-01-18 11:10:38,567 INFO L402 AbstractCegarLoop]: === Iteration 546 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:38,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:38,568 INFO L85 PathProgramCache]: Analyzing trace with hash -446580992, now seen corresponding path program 244 times [2022-01-18 11:10:38,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:38,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677258494] [2022-01-18 11:10:38,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:38,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:38,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:38,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:38,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677258494] [2022-01-18 11:10:38,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677258494] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:38,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:38,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:38,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958176293] [2022-01-18 11:10:38,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:38,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:38,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:38,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:38,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:38,684 INFO L87 Difference]: Start difference. First operand 7301 states and 19318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:39,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:39,349 INFO L93 Difference]: Finished difference Result 8516 states and 22459 transitions. [2022-01-18 11:10:39,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:10:39,350 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:39,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:39,359 INFO L225 Difference]: With dead ends: 8516 [2022-01-18 11:10:39,359 INFO L226 Difference]: Without dead ends: 7951 [2022-01-18 11:10:39,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=622, Invalid=2030, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 11:10:39,360 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 488 mSDsluCounter, 2217 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:39,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 2392 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:39,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7951 states. [2022-01-18 11:10:39,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7951 to 7305. [2022-01-18 11:10:39,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.6458105147864184) internal successors, (19325), 7304 states have internal predecessors, (19325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:39,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19325 transitions. [2022-01-18 11:10:39,452 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19325 transitions. Word has length 109 [2022-01-18 11:10:39,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:39,452 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19325 transitions. [2022-01-18 11:10:39,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:39,452 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19325 transitions. [2022-01-18 11:10:39,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:39,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:39,460 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:39,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable545 [2022-01-18 11:10:39,460 INFO L402 AbstractCegarLoop]: === Iteration 547 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:39,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:39,460 INFO L85 PathProgramCache]: Analyzing trace with hash 417850070, now seen corresponding path program 245 times [2022-01-18 11:10:39,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:39,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432328282] [2022-01-18 11:10:39,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:39,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:39,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:39,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:39,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432328282] [2022-01-18 11:10:39,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432328282] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:39,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:39,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:39,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199283802] [2022-01-18 11:10:39,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:39,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:39,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:39,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:39,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:39,576 INFO L87 Difference]: Start difference. First operand 7305 states and 19325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:40,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:40,106 INFO L93 Difference]: Finished difference Result 8391 states and 22130 transitions. [2022-01-18 11:10:40,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:10:40,107 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:40,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:40,116 INFO L225 Difference]: With dead ends: 8391 [2022-01-18 11:10:40,116 INFO L226 Difference]: Without dead ends: 7869 [2022-01-18 11:10:40,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1616, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 11:10:40,117 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 410 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 2522 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:40,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 2522 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:40,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7869 states. [2022-01-18 11:10:40,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7869 to 7309. [2022-01-18 11:10:40,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.645320197044335) internal successors, (19332), 7308 states have internal predecessors, (19332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:40,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19332 transitions. [2022-01-18 11:10:40,229 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19332 transitions. Word has length 109 [2022-01-18 11:10:40,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:40,230 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19332 transitions. [2022-01-18 11:10:40,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:40,230 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19332 transitions. [2022-01-18 11:10:40,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:40,237 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:40,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:40,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable546 [2022-01-18 11:10:40,237 INFO L402 AbstractCegarLoop]: === Iteration 548 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:40,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:40,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1140065280, now seen corresponding path program 246 times [2022-01-18 11:10:40,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:40,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600064427] [2022-01-18 11:10:40,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:40,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:40,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:40,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:40,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600064427] [2022-01-18 11:10:40,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600064427] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:40,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:40,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:40,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503411438] [2022-01-18 11:10:40,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:40,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:40,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:40,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:40,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:40,357 INFO L87 Difference]: Start difference. First operand 7309 states and 19332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:40,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:40,745 INFO L93 Difference]: Finished difference Result 8227 states and 21700 transitions. [2022-01-18 11:10:40,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:40,745 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:40,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:40,754 INFO L225 Difference]: With dead ends: 8227 [2022-01-18 11:10:40,754 INFO L226 Difference]: Without dead ends: 7748 [2022-01-18 11:10:40,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:10:40,754 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 322 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:40,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 2051 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:40,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7748 states. [2022-01-18 11:10:40,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7748 to 7313. [2022-01-18 11:10:40,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6448304157549236) internal successors, (19339), 7312 states have internal predecessors, (19339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:40,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19339 transitions. [2022-01-18 11:10:40,836 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19339 transitions. Word has length 109 [2022-01-18 11:10:40,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:40,837 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19339 transitions. [2022-01-18 11:10:40,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:40,837 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19339 transitions. [2022-01-18 11:10:40,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:40,843 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:40,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:40,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable547 [2022-01-18 11:10:40,844 INFO L402 AbstractCegarLoop]: === Iteration 549 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:40,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:40,844 INFO L85 PathProgramCache]: Analyzing trace with hash 487457838, now seen corresponding path program 247 times [2022-01-18 11:10:40,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:40,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162787880] [2022-01-18 11:10:40,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:40,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:40,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:40,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:40,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162787880] [2022-01-18 11:10:40,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162787880] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:40,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:40,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:40,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435253647] [2022-01-18 11:10:40,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:40,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:40,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:40,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:40,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:40,955 INFO L87 Difference]: Start difference. First operand 7313 states and 19339 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:41,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:41,320 INFO L93 Difference]: Finished difference Result 8153 states and 21501 transitions. [2022-01-18 11:10:41,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 11:10:41,320 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:41,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:41,329 INFO L225 Difference]: With dead ends: 8153 [2022-01-18 11:10:41,329 INFO L226 Difference]: Without dead ends: 7661 [2022-01-18 11:10:41,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=1014, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:10:41,329 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 299 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:41,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 2322 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:41,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7661 states. [2022-01-18 11:10:41,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7661 to 7297. [2022-01-18 11:10:41,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7297 states, 7296 states have (on average 2.6462445175438596) internal successors, (19307), 7296 states have internal predecessors, (19307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:41,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19307 transitions. [2022-01-18 11:10:41,414 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19307 transitions. Word has length 109 [2022-01-18 11:10:41,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:41,414 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19307 transitions. [2022-01-18 11:10:41,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:41,414 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19307 transitions. [2022-01-18 11:10:41,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:41,421 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:41,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:41,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable548 [2022-01-18 11:10:41,421 INFO L402 AbstractCegarLoop]: === Iteration 550 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:41,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:41,421 INFO L85 PathProgramCache]: Analyzing trace with hash -94104470, now seen corresponding path program 248 times [2022-01-18 11:10:41,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:41,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150134433] [2022-01-18 11:10:41,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:41,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:41,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:41,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:41,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150134433] [2022-01-18 11:10:41,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150134433] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:41,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:41,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:41,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651345802] [2022-01-18 11:10:41,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:41,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:41,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:41,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:41,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:41,532 INFO L87 Difference]: Start difference. First operand 7297 states and 19307 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:42,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:42,174 INFO L93 Difference]: Finished difference Result 8378 states and 22067 transitions. [2022-01-18 11:10:42,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 11:10:42,174 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:42,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:42,183 INFO L225 Difference]: With dead ends: 8378 [2022-01-18 11:10:42,183 INFO L226 Difference]: Without dead ends: 7770 [2022-01-18 11:10:42,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 949 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 11:10:42,184 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 494 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 2726 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:42,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [494 Valid, 2726 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:42,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7770 states. [2022-01-18 11:10:42,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7770 to 7254. [2022-01-18 11:10:42,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7254 states, 7253 states have (on average 2.6459396111953675) internal successors, (19191), 7253 states have internal predecessors, (19191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:42,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7254 states to 7254 states and 19191 transitions. [2022-01-18 11:10:42,266 INFO L78 Accepts]: Start accepts. Automaton has 7254 states and 19191 transitions. Word has length 109 [2022-01-18 11:10:42,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:42,266 INFO L470 AbstractCegarLoop]: Abstraction has 7254 states and 19191 transitions. [2022-01-18 11:10:42,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:42,267 INFO L276 IsEmpty]: Start isEmpty. Operand 7254 states and 19191 transitions. [2022-01-18 11:10:42,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:42,273 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:42,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:42,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable549 [2022-01-18 11:10:42,274 INFO L402 AbstractCegarLoop]: === Iteration 551 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:42,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:42,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1930391086, now seen corresponding path program 249 times [2022-01-18 11:10:42,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:42,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881357382] [2022-01-18 11:10:42,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:42,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:42,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:42,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:42,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881357382] [2022-01-18 11:10:42,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881357382] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:42,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:42,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:42,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285566737] [2022-01-18 11:10:42,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:42,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:42,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:42,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:42,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:42,389 INFO L87 Difference]: Start difference. First operand 7254 states and 19191 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:43,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:43,048 INFO L93 Difference]: Finished difference Result 8273 states and 21793 transitions. [2022-01-18 11:10:43,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:10:43,048 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:43,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:43,057 INFO L225 Difference]: With dead ends: 8273 [2022-01-18 11:10:43,057 INFO L226 Difference]: Without dead ends: 7708 [2022-01-18 11:10:43,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=628, Invalid=2128, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 11:10:43,058 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 435 mSDsluCounter, 2468 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:43,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [435 Valid, 2630 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:43,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7708 states. [2022-01-18 11:10:43,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7708 to 7258. [2022-01-18 11:10:43,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7258 states, 7257 states have (on average 2.645445776491663) internal successors, (19198), 7257 states have internal predecessors, (19198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:43,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7258 states to 7258 states and 19198 transitions. [2022-01-18 11:10:43,150 INFO L78 Accepts]: Start accepts. Automaton has 7258 states and 19198 transitions. Word has length 109 [2022-01-18 11:10:43,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:43,150 INFO L470 AbstractCegarLoop]: Abstraction has 7258 states and 19198 transitions. [2022-01-18 11:10:43,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:43,151 INFO L276 IsEmpty]: Start isEmpty. Operand 7258 states and 19198 transitions. [2022-01-18 11:10:43,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:43,158 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:43,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:43,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable550 [2022-01-18 11:10:43,159 INFO L402 AbstractCegarLoop]: === Iteration 552 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:43,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:43,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1500145148, now seen corresponding path program 250 times [2022-01-18 11:10:43,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:43,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529285707] [2022-01-18 11:10:43,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:43,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:43,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:43,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:43,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529285707] [2022-01-18 11:10:43,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529285707] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:43,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:43,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:43,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244211155] [2022-01-18 11:10:43,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:43,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:43,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:43,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:43,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:43,281 INFO L87 Difference]: Start difference. First operand 7258 states and 19198 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:43,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:43,804 INFO L93 Difference]: Finished difference Result 8168 states and 21519 transitions. [2022-01-18 11:10:43,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 11:10:43,804 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:43,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:43,813 INFO L225 Difference]: With dead ends: 8168 [2022-01-18 11:10:43,814 INFO L226 Difference]: Without dead ends: 7646 [2022-01-18 11:10:43,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=441, Invalid=1539, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 11:10:43,814 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 366 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 2345 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:43,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 2345 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:43,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7646 states. [2022-01-18 11:10:43,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7646 to 7262. [2022-01-18 11:10:43,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7262 states, 7261 states have (on average 2.644952485883487) internal successors, (19205), 7261 states have internal predecessors, (19205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:43,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7262 states to 7262 states and 19205 transitions. [2022-01-18 11:10:43,900 INFO L78 Accepts]: Start accepts. Automaton has 7262 states and 19205 transitions. Word has length 109 [2022-01-18 11:10:43,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:43,900 INFO L470 AbstractCegarLoop]: Abstraction has 7262 states and 19205 transitions. [2022-01-18 11:10:43,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:43,900 INFO L276 IsEmpty]: Start isEmpty. Operand 7262 states and 19205 transitions. [2022-01-18 11:10:43,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:43,907 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:43,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:43,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable551 [2022-01-18 11:10:43,908 INFO L402 AbstractCegarLoop]: === Iteration 553 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:43,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:43,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1236906798, now seen corresponding path program 251 times [2022-01-18 11:10:43,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:43,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500892466] [2022-01-18 11:10:43,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:43,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:44,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:44,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:44,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500892466] [2022-01-18 11:10:44,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500892466] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:44,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:44,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:44,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003517218] [2022-01-18 11:10:44,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:44,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:44,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:44,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:44,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:44,039 INFO L87 Difference]: Start difference. First operand 7262 states and 19205 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:44,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:44,431 INFO L93 Difference]: Finished difference Result 8044 states and 21199 transitions. [2022-01-18 11:10:44,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 11:10:44,432 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:44,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:44,441 INFO L225 Difference]: With dead ends: 8044 [2022-01-18 11:10:44,441 INFO L226 Difference]: Without dead ends: 7565 [2022-01-18 11:10:44,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=304, Invalid=1028, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 11:10:44,442 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 360 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:44,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 1934 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:44,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7565 states. [2022-01-18 11:10:44,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7565 to 7266. [2022-01-18 11:10:44,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7266 states, 7265 states have (on average 2.6444597384721265) internal successors, (19212), 7265 states have internal predecessors, (19212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:44,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7266 states to 7266 states and 19212 transitions. [2022-01-18 11:10:44,532 INFO L78 Accepts]: Start accepts. Automaton has 7266 states and 19212 transitions. Word has length 109 [2022-01-18 11:10:44,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:44,533 INFO L470 AbstractCegarLoop]: Abstraction has 7266 states and 19212 transitions. [2022-01-18 11:10:44,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:44,533 INFO L276 IsEmpty]: Start isEmpty. Operand 7266 states and 19212 transitions. [2022-01-18 11:10:44,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-18 11:10:44,540 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:44,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:44,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable552 [2022-01-18 11:10:44,540 INFO L402 AbstractCegarLoop]: === Iteration 554 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:44,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:44,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1430537380, now seen corresponding path program 252 times [2022-01-18 11:10:44,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:44,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417316356] [2022-01-18 11:10:44,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:44,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:44,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:44,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:44,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417316356] [2022-01-18 11:10:44,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417316356] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:44,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:44,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 11:10:44,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815843466] [2022-01-18 11:10:44,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:44,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 11:10:44,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:44,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 11:10:44,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-18 11:10:44,653 INFO L87 Difference]: Start difference. First operand 7266 states and 19212 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:44,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:44,990 INFO L93 Difference]: Finished difference Result 7742 states and 20401 transitions. [2022-01-18 11:10:44,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 11:10:44,991 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-18 11:10:44,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:44,999 INFO L225 Difference]: With dead ends: 7742 [2022-01-18 11:10:44,999 INFO L226 Difference]: Without dead ends: 7154 [2022-01-18 11:10:44,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2022-01-18 11:10:44,999 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 224 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:44,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2317 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 11:10:45,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7154 states. [2022-01-18 11:10:45,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7154 to 7154. [2022-01-18 11:10:45,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7154 states, 7153 states have (on average 2.6496574863693554) internal successors, (18953), 7153 states have internal predecessors, (18953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:45,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7154 states to 7154 states and 18953 transitions. [2022-01-18 11:10:45,078 INFO L78 Accepts]: Start accepts. Automaton has 7154 states and 18953 transitions. Word has length 109 [2022-01-18 11:10:45,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:45,078 INFO L470 AbstractCegarLoop]: Abstraction has 7154 states and 18953 transitions. [2022-01-18 11:10:45,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:45,078 INFO L276 IsEmpty]: Start isEmpty. Operand 7154 states and 18953 transitions. [2022-01-18 11:10:45,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:10:45,085 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:45,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:45,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable553 [2022-01-18 11:10:45,085 INFO L402 AbstractCegarLoop]: === Iteration 555 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:45,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:45,086 INFO L85 PathProgramCache]: Analyzing trace with hash 280838126, now seen corresponding path program 1 times [2022-01-18 11:10:45,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:45,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252978257] [2022-01-18 11:10:45,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:45,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:45,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:45,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:45,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252978257] [2022-01-18 11:10:45,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252978257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:45,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:45,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:10:45,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478503438] [2022-01-18 11:10:45,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:45,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:10:45,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:45,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:10:45,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:10:45,659 INFO L87 Difference]: Start difference. First operand 7154 states and 18953 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:53,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:53,943 INFO L93 Difference]: Finished difference Result 21119 states and 56064 transitions. [2022-01-18 11:10:53,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-01-18 11:10:53,944 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:10:53,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:53,966 INFO L225 Difference]: With dead ends: 21119 [2022-01-18 11:10:53,966 INFO L226 Difference]: Without dead ends: 19831 [2022-01-18 11:10:53,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3886 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=3896, Invalid=12106, Unknown=0, NotChecked=0, Total=16002 [2022-01-18 11:10:53,967 INFO L933 BasicCegarLoop]: 638 mSDtfsCounter, 2245 mSDsluCounter, 12669 mSDsCounter, 0 mSdLazyCounter, 2225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2245 SdHoareTripleChecker+Valid, 13037 SdHoareTripleChecker+Invalid, 2225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:53,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2245 Valid, 13037 Invalid, 2225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2225 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 11:10:53,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19831 states. [2022-01-18 11:10:54,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19831 to 8350. [2022-01-18 11:10:54,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8350 states, 8349 states have (on average 2.6578033297400885) internal successors, (22190), 8349 states have internal predecessors, (22190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:54,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8350 states to 8350 states and 22190 transitions. [2022-01-18 11:10:54,106 INFO L78 Accepts]: Start accepts. Automaton has 8350 states and 22190 transitions. Word has length 153 [2022-01-18 11:10:54,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:54,106 INFO L470 AbstractCegarLoop]: Abstraction has 8350 states and 22190 transitions. [2022-01-18 11:10:54,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:54,107 INFO L276 IsEmpty]: Start isEmpty. Operand 8350 states and 22190 transitions. [2022-01-18 11:10:54,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:10:54,115 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:54,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:54,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable554 [2022-01-18 11:10:54,115 INFO L402 AbstractCegarLoop]: === Iteration 556 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:54,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:54,115 INFO L85 PathProgramCache]: Analyzing trace with hash 129332142, now seen corresponding path program 2 times [2022-01-18 11:10:54,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:54,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521250451] [2022-01-18 11:10:54,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:54,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:54,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:54,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:54,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521250451] [2022-01-18 11:10:54,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521250451] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:54,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:54,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:10:54,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342289472] [2022-01-18 11:10:54,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:54,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:10:54,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:54,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:10:54,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:10:54,656 INFO L87 Difference]: Start difference. First operand 8350 states and 22190 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:58,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:10:58,376 INFO L93 Difference]: Finished difference Result 20429 states and 54186 transitions. [2022-01-18 11:10:58,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:10:58,376 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:10:58,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:10:58,403 INFO L225 Difference]: With dead ends: 20429 [2022-01-18 11:10:58,403 INFO L226 Difference]: Without dead ends: 19938 [2022-01-18 11:10:58,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1199, Invalid=3913, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 11:10:58,404 INFO L933 BasicCegarLoop]: 581 mSDtfsCounter, 1436 mSDsluCounter, 11787 mSDsCounter, 0 mSdLazyCounter, 2284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 12111 SdHoareTripleChecker+Invalid, 2284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:10:58,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1436 Valid, 12111 Invalid, 2284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2284 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:10:58,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19938 states. [2022-01-18 11:10:58,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19938 to 8382. [2022-01-18 11:10:58,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8382 states, 8381 states have (on average 2.6576780813745375) internal successors, (22274), 8381 states have internal predecessors, (22274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:58,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8382 states to 8382 states and 22274 transitions. [2022-01-18 11:10:58,572 INFO L78 Accepts]: Start accepts. Automaton has 8382 states and 22274 transitions. Word has length 153 [2022-01-18 11:10:58,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:10:58,572 INFO L470 AbstractCegarLoop]: Abstraction has 8382 states and 22274 transitions. [2022-01-18 11:10:58,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:10:58,572 INFO L276 IsEmpty]: Start isEmpty. Operand 8382 states and 22274 transitions. [2022-01-18 11:10:58,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:10:58,581 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:10:58,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:10:58,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable555 [2022-01-18 11:10:58,581 INFO L402 AbstractCegarLoop]: === Iteration 557 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:10:58,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:10:58,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1756855260, now seen corresponding path program 3 times [2022-01-18 11:10:58,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:10:58,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752017361] [2022-01-18 11:10:58,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:10:58,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:10:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:10:59,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:10:59,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:10:59,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752017361] [2022-01-18 11:10:59,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752017361] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:10:59,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:10:59,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:10:59,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984795748] [2022-01-18 11:10:59,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:10:59,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:10:59,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:10:59,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:10:59,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:10:59,113 INFO L87 Difference]: Start difference. First operand 8382 states and 22274 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:03,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:03,026 INFO L93 Difference]: Finished difference Result 20426 states and 54176 transitions. [2022-01-18 11:11:03,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:11:03,027 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:11:03,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:03,053 INFO L225 Difference]: With dead ends: 20426 [2022-01-18 11:11:03,053 INFO L226 Difference]: Without dead ends: 19934 [2022-01-18 11:11:03,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1269, Invalid=4583, Unknown=0, NotChecked=0, Total=5852 [2022-01-18 11:11:03,054 INFO L933 BasicCegarLoop]: 590 mSDtfsCounter, 1447 mSDsluCounter, 11947 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 12278 SdHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:03,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1447 Valid, 12278 Invalid, 2302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:11:03,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19934 states. [2022-01-18 11:11:03,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19934 to 8378. [2022-01-18 11:11:03,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8378 states, 8377 states have (on average 2.6576339978512595) internal successors, (22263), 8377 states have internal predecessors, (22263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:03,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8378 states to 8378 states and 22263 transitions. [2022-01-18 11:11:03,214 INFO L78 Accepts]: Start accepts. Automaton has 8378 states and 22263 transitions. Word has length 153 [2022-01-18 11:11:03,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:03,214 INFO L470 AbstractCegarLoop]: Abstraction has 8378 states and 22263 transitions. [2022-01-18 11:11:03,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:03,215 INFO L276 IsEmpty]: Start isEmpty. Operand 8378 states and 22263 transitions. [2022-01-18 11:11:03,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:11:03,223 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:03,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:03,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable556 [2022-01-18 11:11:03,223 INFO L402 AbstractCegarLoop]: === Iteration 558 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:03,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:03,223 INFO L85 PathProgramCache]: Analyzing trace with hash 635797920, now seen corresponding path program 4 times [2022-01-18 11:11:03,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:03,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607576145] [2022-01-18 11:11:03,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:03,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:03,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:03,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:03,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607576145] [2022-01-18 11:11:03,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607576145] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:03,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:03,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:11:03,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306767861] [2022-01-18 11:11:03,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:03,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:11:03,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:03,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:11:03,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:11:03,800 INFO L87 Difference]: Start difference. First operand 8378 states and 22263 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:08,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:08,346 INFO L93 Difference]: Finished difference Result 20462 states and 54271 transitions. [2022-01-18 11:11:08,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 11:11:08,346 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:11:08,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:08,376 INFO L225 Difference]: With dead ends: 20462 [2022-01-18 11:11:08,376 INFO L226 Difference]: Without dead ends: 19930 [2022-01-18 11:11:08,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1209 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1610, Invalid=5872, Unknown=0, NotChecked=0, Total=7482 [2022-01-18 11:11:08,377 INFO L933 BasicCegarLoop]: 599 mSDtfsCounter, 1528 mSDsluCounter, 12710 mSDsCounter, 0 mSdLazyCounter, 2389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 13033 SdHoareTripleChecker+Invalid, 2389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:08,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1528 Valid, 13033 Invalid, 2389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2389 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:11:08,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19930 states. [2022-01-18 11:11:08,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19930 to 8374. [2022-01-18 11:11:08,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8374 states, 8373 states have (on average 2.6575898722082885) internal successors, (22252), 8373 states have internal predecessors, (22252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:08,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8374 states to 8374 states and 22252 transitions. [2022-01-18 11:11:08,562 INFO L78 Accepts]: Start accepts. Automaton has 8374 states and 22252 transitions. Word has length 153 [2022-01-18 11:11:08,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:08,562 INFO L470 AbstractCegarLoop]: Abstraction has 8374 states and 22252 transitions. [2022-01-18 11:11:08,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:08,563 INFO L276 IsEmpty]: Start isEmpty. Operand 8374 states and 22252 transitions. [2022-01-18 11:11:08,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:11:08,571 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:08,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:08,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable557 [2022-01-18 11:11:08,572 INFO L402 AbstractCegarLoop]: === Iteration 559 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:08,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:08,572 INFO L85 PathProgramCache]: Analyzing trace with hash 110662384, now seen corresponding path program 5 times [2022-01-18 11:11:08,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:08,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195819769] [2022-01-18 11:11:08,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:08,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:09,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:09,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:09,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195819769] [2022-01-18 11:11:09,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195819769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:09,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:09,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:11:09,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361369860] [2022-01-18 11:11:09,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:09,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:11:09,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:09,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:11:09,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:11:09,101 INFO L87 Difference]: Start difference. First operand 8374 states and 22252 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:14,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:14,366 INFO L93 Difference]: Finished difference Result 20498 states and 54366 transitions. [2022-01-18 11:11:14,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-01-18 11:11:14,366 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:11:14,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:14,393 INFO L225 Difference]: With dead ends: 20498 [2022-01-18 11:11:14,393 INFO L226 Difference]: Without dead ends: 19926 [2022-01-18 11:11:14,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1773 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2023, Invalid=7289, Unknown=0, NotChecked=0, Total=9312 [2022-01-18 11:11:14,394 INFO L933 BasicCegarLoop]: 608 mSDtfsCounter, 1594 mSDsluCounter, 12874 mSDsCounter, 0 mSdLazyCounter, 2375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 13204 SdHoareTripleChecker+Invalid, 2375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:14,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1594 Valid, 13204 Invalid, 2375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2375 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 11:11:14,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19926 states. [2022-01-18 11:11:14,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19926 to 8370. [2022-01-18 11:11:14,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8370 states, 8369 states have (on average 2.6575457043852313) internal successors, (22241), 8369 states have internal predecessors, (22241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:14,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8370 states to 8370 states and 22241 transitions. [2022-01-18 11:11:14,558 INFO L78 Accepts]: Start accepts. Automaton has 8370 states and 22241 transitions. Word has length 153 [2022-01-18 11:11:14,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:14,558 INFO L470 AbstractCegarLoop]: Abstraction has 8370 states and 22241 transitions. [2022-01-18 11:11:14,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:14,558 INFO L276 IsEmpty]: Start isEmpty. Operand 8370 states and 22241 transitions. [2022-01-18 11:11:14,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:11:14,567 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:14,567 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:14,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable558 [2022-01-18 11:11:14,567 INFO L402 AbstractCegarLoop]: === Iteration 560 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:14,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:14,567 INFO L85 PathProgramCache]: Analyzing trace with hash 762955650, now seen corresponding path program 6 times [2022-01-18 11:11:14,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:14,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714526172] [2022-01-18 11:11:14,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:14,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:15,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:15,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:15,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714526172] [2022-01-18 11:11:15,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714526172] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:15,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:15,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:11:15,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529798814] [2022-01-18 11:11:15,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:15,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:11:15,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:15,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:11:15,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:11:15,172 INFO L87 Difference]: Start difference. First operand 8370 states and 22241 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:21,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:21,193 INFO L93 Difference]: Finished difference Result 20534 states and 54461 transitions. [2022-01-18 11:11:21,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 11:11:21,193 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:11:21,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:21,217 INFO L225 Difference]: With dead ends: 20534 [2022-01-18 11:11:21,217 INFO L226 Difference]: Without dead ends: 19922 [2022-01-18 11:11:21,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2431 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=2505, Invalid=8837, Unknown=0, NotChecked=0, Total=11342 [2022-01-18 11:11:21,218 INFO L933 BasicCegarLoop]: 617 mSDtfsCounter, 1706 mSDsluCounter, 12403 mSDsCounter, 0 mSdLazyCounter, 2266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 12755 SdHoareTripleChecker+Invalid, 2266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:21,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1706 Valid, 12755 Invalid, 2266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2266 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:11:21,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19922 states. [2022-01-18 11:11:21,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19922 to 8366. [2022-01-18 11:11:21,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8366 states, 8365 states have (on average 2.657501494321578) internal successors, (22230), 8365 states have internal predecessors, (22230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:21,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8366 states to 8366 states and 22230 transitions. [2022-01-18 11:11:21,368 INFO L78 Accepts]: Start accepts. Automaton has 8366 states and 22230 transitions. Word has length 153 [2022-01-18 11:11:21,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:21,368 INFO L470 AbstractCegarLoop]: Abstraction has 8366 states and 22230 transitions. [2022-01-18 11:11:21,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:21,369 INFO L276 IsEmpty]: Start isEmpty. Operand 8366 states and 22230 transitions. [2022-01-18 11:11:21,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:11:21,377 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:21,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:21,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable559 [2022-01-18 11:11:21,377 INFO L402 AbstractCegarLoop]: === Iteration 561 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:21,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:21,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1972639894, now seen corresponding path program 7 times [2022-01-18 11:11:21,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:21,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115975642] [2022-01-18 11:11:21,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:21,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:21,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:21,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:21,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115975642] [2022-01-18 11:11:21,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115975642] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:21,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:21,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:11:21,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741672747] [2022-01-18 11:11:21,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:21,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:11:21,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:21,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:11:21,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:11:21,938 INFO L87 Difference]: Start difference. First operand 8366 states and 22230 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:28,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:28,799 INFO L93 Difference]: Finished difference Result 20650 states and 54768 transitions. [2022-01-18 11:11:28,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-01-18 11:11:28,800 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:11:28,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:28,830 INFO L225 Difference]: With dead ends: 20650 [2022-01-18 11:11:28,830 INFO L226 Difference]: Without dead ends: 19910 [2022-01-18 11:11:28,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3158 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=3057, Invalid=10515, Unknown=0, NotChecked=0, Total=13572 [2022-01-18 11:11:28,832 INFO L933 BasicCegarLoop]: 627 mSDtfsCounter, 1805 mSDsluCounter, 12539 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1805 SdHoareTripleChecker+Valid, 12899 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:28,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1805 Valid, 12899 Invalid, 2277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 11:11:28,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19910 states. [2022-01-18 11:11:29,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19910 to 8354. [2022-01-18 11:11:29,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8354 states, 8353 states have (on average 2.6573686100802107) internal successors, (22197), 8353 states have internal predecessors, (22197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:29,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8354 states to 8354 states and 22197 transitions. [2022-01-18 11:11:29,029 INFO L78 Accepts]: Start accepts. Automaton has 8354 states and 22197 transitions. Word has length 153 [2022-01-18 11:11:29,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:29,029 INFO L470 AbstractCegarLoop]: Abstraction has 8354 states and 22197 transitions. [2022-01-18 11:11:29,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:29,029 INFO L276 IsEmpty]: Start isEmpty. Operand 8354 states and 22197 transitions. [2022-01-18 11:11:29,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:11:29,038 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:29,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:29,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable560 [2022-01-18 11:11:29,039 INFO L402 AbstractCegarLoop]: === Iteration 562 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:29,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:29,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1230030440, now seen corresponding path program 8 times [2022-01-18 11:11:29,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:29,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728035426] [2022-01-18 11:11:29,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:29,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:29,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:29,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:29,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728035426] [2022-01-18 11:11:29,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728035426] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:29,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:29,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:11:29,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542049926] [2022-01-18 11:11:29,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:29,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:11:29,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:29,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:11:29,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:11:29,666 INFO L87 Difference]: Start difference. First operand 8354 states and 22197 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:37,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:37,224 INFO L93 Difference]: Finished difference Result 20603 states and 54641 transitions. [2022-01-18 11:11:37,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-01-18 11:11:37,225 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:11:37,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:37,250 INFO L225 Difference]: With dead ends: 20603 [2022-01-18 11:11:37,250 INFO L226 Difference]: Without dead ends: 19779 [2022-01-18 11:11:37,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3525 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=3465, Invalid=11297, Unknown=0, NotChecked=0, Total=14762 [2022-01-18 11:11:37,252 INFO L933 BasicCegarLoop]: 629 mSDtfsCounter, 1925 mSDsluCounter, 13129 mSDsCounter, 0 mSdLazyCounter, 2292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1925 SdHoareTripleChecker+Valid, 13476 SdHoareTripleChecker+Invalid, 2292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:37,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1925 Valid, 13476 Invalid, 2292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2292 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 11:11:37,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19779 states. [2022-01-18 11:11:37,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19779 to 8298. [2022-01-18 11:11:37,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8298 states, 8297 states have (on average 2.6572255031939256) internal successors, (22047), 8297 states have internal predecessors, (22047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:37,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8298 states to 8298 states and 22047 transitions. [2022-01-18 11:11:37,402 INFO L78 Accepts]: Start accepts. Automaton has 8298 states and 22047 transitions. Word has length 153 [2022-01-18 11:11:37,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:37,402 INFO L470 AbstractCegarLoop]: Abstraction has 8298 states and 22047 transitions. [2022-01-18 11:11:37,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:37,402 INFO L276 IsEmpty]: Start isEmpty. Operand 8298 states and 22047 transitions. [2022-01-18 11:11:37,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:11:37,411 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:37,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:37,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable561 [2022-01-18 11:11:37,411 INFO L402 AbstractCegarLoop]: === Iteration 563 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:37,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:37,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1436230792, now seen corresponding path program 9 times [2022-01-18 11:11:37,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:37,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149457697] [2022-01-18 11:11:37,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:37,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:38,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:38,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:38,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149457697] [2022-01-18 11:11:38,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149457697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:38,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:38,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:11:38,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568800361] [2022-01-18 11:11:38,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:38,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:11:38,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:38,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:11:38,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:11:38,012 INFO L87 Difference]: Start difference. First operand 8298 states and 22047 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:41,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:41,802 INFO L93 Difference]: Finished difference Result 20832 states and 55263 transitions. [2022-01-18 11:11:41,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:11:41,802 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:11:41,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:41,830 INFO L225 Difference]: With dead ends: 20832 [2022-01-18 11:11:41,830 INFO L226 Difference]: Without dead ends: 20341 [2022-01-18 11:11:41,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1237, Invalid=4019, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:11:41,831 INFO L933 BasicCegarLoop]: 572 mSDtfsCounter, 1424 mSDsluCounter, 12170 mSDsCounter, 0 mSdLazyCounter, 2396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 12471 SdHoareTripleChecker+Invalid, 2396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:41,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1424 Valid, 12471 Invalid, 2396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2396 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 11:11:41,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20341 states. [2022-01-18 11:11:41,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20341 to 8342. [2022-01-18 11:11:41,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8342 states, 8341 states have (on average 2.6572353434839946) internal successors, (22164), 8341 states have internal predecessors, (22164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:41,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8342 states to 8342 states and 22164 transitions. [2022-01-18 11:11:41,998 INFO L78 Accepts]: Start accepts. Automaton has 8342 states and 22164 transitions. Word has length 153 [2022-01-18 11:11:41,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:41,998 INFO L470 AbstractCegarLoop]: Abstraction has 8342 states and 22164 transitions. [2022-01-18 11:11:41,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:41,998 INFO L276 IsEmpty]: Start isEmpty. Operand 8342 states and 22164 transitions. [2022-01-18 11:11:42,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:11:42,007 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:42,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:42,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable562 [2022-01-18 11:11:42,007 INFO L402 AbstractCegarLoop]: === Iteration 564 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:42,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:42,007 INFO L85 PathProgramCache]: Analyzing trace with hash 191292326, now seen corresponding path program 10 times [2022-01-18 11:11:42,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:42,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868972457] [2022-01-18 11:11:42,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:42,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:42,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:42,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:42,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868972457] [2022-01-18 11:11:42,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868972457] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:42,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:42,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:11:42,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142919228] [2022-01-18 11:11:42,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:42,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:11:42,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:42,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:11:42,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:11:42,577 INFO L87 Difference]: Start difference. First operand 8342 states and 22164 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:46,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:46,586 INFO L93 Difference]: Finished difference Result 20810 states and 55207 transitions. [2022-01-18 11:11:46,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:11:46,587 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:11:46,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:46,614 INFO L225 Difference]: With dead ends: 20810 [2022-01-18 11:11:46,614 INFO L226 Difference]: Without dead ends: 20318 [2022-01-18 11:11:46,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1280, Invalid=4572, Unknown=0, NotChecked=0, Total=5852 [2022-01-18 11:11:46,615 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 1440 mSDsluCounter, 12252 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 12571 SdHoareTripleChecker+Invalid, 2393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:46,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1440 Valid, 12571 Invalid, 2393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 11:11:46,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20318 states. [2022-01-18 11:11:46,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20318 to 8338. [2022-01-18 11:11:46,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8338 states, 8337 states have (on average 2.6571908360321457) internal successors, (22153), 8337 states have internal predecessors, (22153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:46,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8338 states to 8338 states and 22153 transitions. [2022-01-18 11:11:46,789 INFO L78 Accepts]: Start accepts. Automaton has 8338 states and 22153 transitions. Word has length 153 [2022-01-18 11:11:46,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:46,789 INFO L470 AbstractCegarLoop]: Abstraction has 8338 states and 22153 transitions. [2022-01-18 11:11:46,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:46,789 INFO L276 IsEmpty]: Start isEmpty. Operand 8338 states and 22153 transitions. [2022-01-18 11:11:46,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:11:46,799 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:46,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:46,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable563 [2022-01-18 11:11:46,800 INFO L402 AbstractCegarLoop]: === Iteration 565 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:46,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:46,800 INFO L85 PathProgramCache]: Analyzing trace with hash -929765014, now seen corresponding path program 11 times [2022-01-18 11:11:46,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:46,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251292864] [2022-01-18 11:11:46,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:46,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:47,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:47,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:47,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251292864] [2022-01-18 11:11:47,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251292864] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:47,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:47,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:11:47,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918643945] [2022-01-18 11:11:47,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:47,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:11:47,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:47,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:11:47,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:11:47,381 INFO L87 Difference]: Start difference. First operand 8338 states and 22153 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:51,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:51,782 INFO L93 Difference]: Finished difference Result 20846 states and 55302 transitions. [2022-01-18 11:11:51,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 11:11:51,783 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:11:51,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:51,811 INFO L225 Difference]: With dead ends: 20846 [2022-01-18 11:11:51,811 INFO L226 Difference]: Without dead ends: 20314 [2022-01-18 11:11:51,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1266 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1633, Invalid=5849, Unknown=0, NotChecked=0, Total=7482 [2022-01-18 11:11:51,812 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 1526 mSDsluCounter, 11285 mSDsCounter, 0 mSdLazyCounter, 2191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 11637 SdHoareTripleChecker+Invalid, 2191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:51,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1526 Valid, 11637 Invalid, 2191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2191 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:11:51,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20314 states. [2022-01-18 11:11:51,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20314 to 8334. [2022-01-18 11:11:51,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8334 states, 8333 states have (on average 2.657146285851434) internal successors, (22142), 8333 states have internal predecessors, (22142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:51,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 22142 transitions. [2022-01-18 11:11:51,986 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 22142 transitions. Word has length 153 [2022-01-18 11:11:51,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:51,986 INFO L470 AbstractCegarLoop]: Abstraction has 8334 states and 22142 transitions. [2022-01-18 11:11:51,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:51,986 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 22142 transitions. [2022-01-18 11:11:51,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:11:51,996 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:51,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:51,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable564 [2022-01-18 11:11:51,996 INFO L402 AbstractCegarLoop]: === Iteration 566 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:51,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:51,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1454900550, now seen corresponding path program 12 times [2022-01-18 11:11:51,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:51,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882231894] [2022-01-18 11:11:51,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:51,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:52,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:52,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:52,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882231894] [2022-01-18 11:11:52,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882231894] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:52,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:52,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:11:52,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816731620] [2022-01-18 11:11:52,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:52,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:11:52,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:52,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:11:52,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:11:52,603 INFO L87 Difference]: Start difference. First operand 8334 states and 22142 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:57,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:11:57,914 INFO L93 Difference]: Finished difference Result 20882 states and 55397 transitions. [2022-01-18 11:11:57,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-01-18 11:11:57,914 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:11:57,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:11:57,943 INFO L225 Difference]: With dead ends: 20882 [2022-01-18 11:11:57,943 INFO L226 Difference]: Without dead ends: 20310 [2022-01-18 11:11:57,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1761 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2052, Invalid=7260, Unknown=0, NotChecked=0, Total=9312 [2022-01-18 11:11:57,945 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 1609 mSDsluCounter, 11988 mSDsCounter, 0 mSdLazyCounter, 2281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1609 SdHoareTripleChecker+Valid, 12335 SdHoareTripleChecker+Invalid, 2281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:11:57,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1609 Valid, 12335 Invalid, 2281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2281 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:11:57,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20310 states. [2022-01-18 11:11:58,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20310 to 8330. [2022-01-18 11:11:58,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8329 states have (on average 2.657101692880298) internal successors, (22131), 8329 states have internal predecessors, (22131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:58,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 22131 transitions. [2022-01-18 11:11:58,120 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 22131 transitions. Word has length 153 [2022-01-18 11:11:58,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:11:58,120 INFO L470 AbstractCegarLoop]: Abstraction has 8330 states and 22131 transitions. [2022-01-18 11:11:58,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:11:58,120 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 22131 transitions. [2022-01-18 11:11:58,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:11:58,129 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:11:58,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:11:58,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable565 [2022-01-18 11:11:58,129 INFO L402 AbstractCegarLoop]: === Iteration 567 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:11:58,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:11:58,129 INFO L85 PathProgramCache]: Analyzing trace with hash -802607284, now seen corresponding path program 13 times [2022-01-18 11:11:58,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:11:58,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441686842] [2022-01-18 11:11:58,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:11:58,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:11:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:11:58,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:11:58,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:11:58,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441686842] [2022-01-18 11:11:58,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441686842] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:11:58,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:11:58,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:11:58,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552819327] [2022-01-18 11:11:58,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:11:58,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:11:58,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:11:58,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:11:58,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:11:58,678 INFO L87 Difference]: Start difference. First operand 8330 states and 22131 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:04,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:04,793 INFO L93 Difference]: Finished difference Result 20918 states and 55492 transitions. [2022-01-18 11:12:04,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 11:12:04,793 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:12:04,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:04,818 INFO L225 Difference]: With dead ends: 20918 [2022-01-18 11:12:04,818 INFO L226 Difference]: Without dead ends: 20306 [2022-01-18 11:12:04,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2411 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=2543, Invalid=8799, Unknown=0, NotChecked=0, Total=11342 [2022-01-18 11:12:04,820 INFO L933 BasicCegarLoop]: 604 mSDtfsCounter, 1674 mSDsluCounter, 12730 mSDsCounter, 0 mSdLazyCounter, 2359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1674 SdHoareTripleChecker+Valid, 13070 SdHoareTripleChecker+Invalid, 2359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:04,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1674 Valid, 13070 Invalid, 2359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2359 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 11:12:04,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20306 states. [2022-01-18 11:12:04,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20306 to 8326. [2022-01-18 11:12:04,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 2.657057057057057) internal successors, (22120), 8325 states have internal predecessors, (22120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:04,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 22120 transitions. [2022-01-18 11:12:04,971 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 22120 transitions. Word has length 153 [2022-01-18 11:12:04,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:04,972 INFO L470 AbstractCegarLoop]: Abstraction has 8326 states and 22120 transitions. [2022-01-18 11:12:04,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:04,972 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 22120 transitions. [2022-01-18 11:12:04,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:12:04,980 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:04,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:04,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable566 [2022-01-18 11:12:04,980 INFO L402 AbstractCegarLoop]: === Iteration 568 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:04,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:04,980 INFO L85 PathProgramCache]: Analyzing trace with hash 407076960, now seen corresponding path program 14 times [2022-01-18 11:12:04,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:04,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989352281] [2022-01-18 11:12:04,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:04,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:04,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:05,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:05,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:05,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989352281] [2022-01-18 11:12:05,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989352281] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:05,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:05,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:12:05,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522660177] [2022-01-18 11:12:05,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:05,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:12:05,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:05,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:12:05,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:12:05,472 INFO L87 Difference]: Start difference. First operand 8326 states and 22120 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:12,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:12,405 INFO L93 Difference]: Finished difference Result 21378 states and 56701 transitions. [2022-01-18 11:12:12,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-01-18 11:12:12,405 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:12:12,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:12,434 INFO L225 Difference]: With dead ends: 21378 [2022-01-18 11:12:12,435 INFO L226 Difference]: Without dead ends: 20638 [2022-01-18 11:12:12,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3061 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=3061, Invalid=10279, Unknown=0, NotChecked=0, Total=13340 [2022-01-18 11:12:12,436 INFO L933 BasicCegarLoop]: 611 mSDtfsCounter, 1855 mSDsluCounter, 12217 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1855 SdHoareTripleChecker+Valid, 12576 SdHoareTripleChecker+Invalid, 2271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:12,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1855 Valid, 12576 Invalid, 2271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:12:12,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20638 states. [2022-01-18 11:12:12,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20638 to 8314. [2022-01-18 11:12:12,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8314 states, 8313 states have (on average 2.6559605437266933) internal successors, (22079), 8313 states have internal predecessors, (22079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:12,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8314 states to 8314 states and 22079 transitions. [2022-01-18 11:12:12,610 INFO L78 Accepts]: Start accepts. Automaton has 8314 states and 22079 transitions. Word has length 153 [2022-01-18 11:12:12,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:12,610 INFO L470 AbstractCegarLoop]: Abstraction has 8314 states and 22079 transitions. [2022-01-18 11:12:12,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:12,610 INFO L276 IsEmpty]: Start isEmpty. Operand 8314 states and 22079 transitions. [2022-01-18 11:12:12,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:12:12,618 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:12,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:12,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable567 [2022-01-18 11:12:12,619 INFO L402 AbstractCegarLoop]: === Iteration 569 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:12,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:12,619 INFO L85 PathProgramCache]: Analyzing trace with hash -962304004, now seen corresponding path program 15 times [2022-01-18 11:12:12,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:12,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491571123] [2022-01-18 11:12:12,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:12,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:13,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:13,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:13,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491571123] [2022-01-18 11:12:13,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491571123] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:13,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:13,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:12:13,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183135018] [2022-01-18 11:12:13,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:13,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:12:13,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:13,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:12:13,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:12:13,169 INFO L87 Difference]: Start difference. First operand 8314 states and 22079 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:17,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:17,166 INFO L93 Difference]: Finished difference Result 20760 states and 55053 transitions. [2022-01-18 11:12:17,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 11:12:17,167 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:12:17,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:17,193 INFO L225 Difference]: With dead ends: 20760 [2022-01-18 11:12:17,193 INFO L226 Difference]: Without dead ends: 20269 [2022-01-18 11:12:17,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1309, Invalid=4241, Unknown=0, NotChecked=0, Total=5550 [2022-01-18 11:12:17,194 INFO L933 BasicCegarLoop]: 575 mSDtfsCounter, 1420 mSDsluCounter, 12195 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 12499 SdHoareTripleChecker+Invalid, 2374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:17,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1420 Valid, 12499 Invalid, 2374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:12:17,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20269 states. [2022-01-18 11:12:17,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20269 to 8334. [2022-01-18 11:12:17,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8334 states, 8333 states have (on average 2.65570622824913) internal successors, (22130), 8333 states have internal predecessors, (22130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:17,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 22130 transitions. [2022-01-18 11:12:17,347 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 22130 transitions. Word has length 153 [2022-01-18 11:12:17,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:17,347 INFO L470 AbstractCegarLoop]: Abstraction has 8334 states and 22130 transitions. [2022-01-18 11:12:17,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:17,347 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 22130 transitions. [2022-01-18 11:12:17,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:12:17,355 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:17,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:17,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable568 [2022-01-18 11:12:17,356 INFO L402 AbstractCegarLoop]: === Iteration 570 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:17,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:17,356 INFO L85 PathProgramCache]: Analyzing trace with hash 665219114, now seen corresponding path program 16 times [2022-01-18 11:12:17,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:17,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329423607] [2022-01-18 11:12:17,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:17,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:17,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:17,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:17,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329423607] [2022-01-18 11:12:17,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329423607] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:17,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:17,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:12:17,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081662015] [2022-01-18 11:12:17,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:17,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:12:17,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:17,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:12:17,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:12:17,859 INFO L87 Difference]: Start difference. First operand 8334 states and 22130 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:21,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:21,739 INFO L93 Difference]: Finished difference Result 20726 states and 54964 transitions. [2022-01-18 11:12:21,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:12:21,739 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:12:21,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:21,767 INFO L225 Difference]: With dead ends: 20726 [2022-01-18 11:12:21,768 INFO L226 Difference]: Without dead ends: 20234 [2022-01-18 11:12:21,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1290, Invalid=4562, Unknown=0, NotChecked=0, Total=5852 [2022-01-18 11:12:21,769 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 1455 mSDsluCounter, 11652 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 11985 SdHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:21,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1455 Valid, 11985 Invalid, 2275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:12:21,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20234 states. [2022-01-18 11:12:21,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20234 to 8330. [2022-01-18 11:12:21,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8329 states have (on average 2.655660943690719) internal successors, (22119), 8329 states have internal predecessors, (22119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:21,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 22119 transitions. [2022-01-18 11:12:21,944 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 22119 transitions. Word has length 153 [2022-01-18 11:12:21,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:21,945 INFO L470 AbstractCegarLoop]: Abstraction has 8330 states and 22119 transitions. [2022-01-18 11:12:21,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:21,945 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 22119 transitions. [2022-01-18 11:12:21,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:12:21,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:21,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:21,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable569 [2022-01-18 11:12:21,954 INFO L402 AbstractCegarLoop]: === Iteration 571 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:21,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:21,954 INFO L85 PathProgramCache]: Analyzing trace with hash -455838226, now seen corresponding path program 17 times [2022-01-18 11:12:21,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:21,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461705716] [2022-01-18 11:12:21,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:21,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:22,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:22,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:22,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461705716] [2022-01-18 11:12:22,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461705716] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:22,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:22,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:12:22,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304384651] [2022-01-18 11:12:22,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:22,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:12:22,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:22,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:12:22,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:12:22,438 INFO L87 Difference]: Start difference. First operand 8330 states and 22119 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:27,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:27,134 INFO L93 Difference]: Finished difference Result 20762 states and 55059 transitions. [2022-01-18 11:12:27,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 11:12:27,135 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:12:27,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:27,163 INFO L225 Difference]: With dead ends: 20762 [2022-01-18 11:12:27,163 INFO L226 Difference]: Without dead ends: 20230 [2022-01-18 11:12:27,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1189 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1651, Invalid=5831, Unknown=0, NotChecked=0, Total=7482 [2022-01-18 11:12:27,164 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 1514 mSDsluCounter, 11843 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 12181 SdHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:27,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1514 Valid, 12181 Invalid, 2275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:12:27,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20230 states. [2022-01-18 11:12:27,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20230 to 8326. [2022-01-18 11:12:27,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 2.6556156156156154) internal successors, (22108), 8325 states have internal predecessors, (22108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:27,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 22108 transitions. [2022-01-18 11:12:27,322 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 22108 transitions. Word has length 153 [2022-01-18 11:12:27,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:27,322 INFO L470 AbstractCegarLoop]: Abstraction has 8326 states and 22108 transitions. [2022-01-18 11:12:27,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:27,322 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 22108 transitions. [2022-01-18 11:12:27,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:12:27,331 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:27,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:27,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable570 [2022-01-18 11:12:27,331 INFO L402 AbstractCegarLoop]: === Iteration 572 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:27,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:27,332 INFO L85 PathProgramCache]: Analyzing trace with hash -980973762, now seen corresponding path program 18 times [2022-01-18 11:12:27,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:27,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996121568] [2022-01-18 11:12:27,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:27,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:27,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:27,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:27,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996121568] [2022-01-18 11:12:27,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996121568] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:27,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:27,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:12:27,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429325090] [2022-01-18 11:12:27,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:27,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:12:27,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:27,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:12:27,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:12:27,845 INFO L87 Difference]: Start difference. First operand 8326 states and 22108 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:32,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:32,999 INFO L93 Difference]: Finished difference Result 20990 states and 55658 transitions. [2022-01-18 11:12:32,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-01-18 11:12:32,999 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:12:32,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:33,029 INFO L225 Difference]: With dead ends: 20990 [2022-01-18 11:12:33,029 INFO L226 Difference]: Without dead ends: 20418 [2022-01-18 11:12:33,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1765 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=2039, Invalid=7081, Unknown=0, NotChecked=0, Total=9120 [2022-01-18 11:12:33,031 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 1608 mSDsluCounter, 12516 mSDsCounter, 0 mSdLazyCounter, 2349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 12846 SdHoareTripleChecker+Invalid, 2349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:33,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1608 Valid, 12846 Invalid, 2349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2349 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:12:33,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20418 states. [2022-01-18 11:12:33,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20418 to 8322. [2022-01-18 11:12:33,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8322 states, 8321 states have (on average 2.6555702439610624) internal successors, (22097), 8321 states have internal predecessors, (22097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:33,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8322 states to 8322 states and 22097 transitions. [2022-01-18 11:12:33,218 INFO L78 Accepts]: Start accepts. Automaton has 8322 states and 22097 transitions. Word has length 153 [2022-01-18 11:12:33,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:33,218 INFO L470 AbstractCegarLoop]: Abstraction has 8322 states and 22097 transitions. [2022-01-18 11:12:33,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:33,218 INFO L276 IsEmpty]: Start isEmpty. Operand 8322 states and 22097 transitions. [2022-01-18 11:12:33,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:12:33,227 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:33,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:33,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable571 [2022-01-18 11:12:33,227 INFO L402 AbstractCegarLoop]: === Iteration 573 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:33,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:33,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1171287166, now seen corresponding path program 19 times [2022-01-18 11:12:33,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:33,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885150740] [2022-01-18 11:12:33,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:33,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:33,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:33,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:33,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885150740] [2022-01-18 11:12:33,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885150740] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:33,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:33,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:12:33,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835593000] [2022-01-18 11:12:33,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:33,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:12:33,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:33,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:12:33,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:12:33,722 INFO L87 Difference]: Start difference. First operand 8322 states and 22097 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:37,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:37,855 INFO L93 Difference]: Finished difference Result 20736 states and 54983 transitions. [2022-01-18 11:12:37,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 11:12:37,855 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:12:37,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:37,884 INFO L225 Difference]: With dead ends: 20736 [2022-01-18 11:12:37,884 INFO L226 Difference]: Without dead ends: 20245 [2022-01-18 11:12:37,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1349, Invalid=4351, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 11:12:37,885 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 1435 mSDsluCounter, 11628 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 11949 SdHoareTripleChecker+Invalid, 2271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:37,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1435 Valid, 11949 Invalid, 2271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:12:37,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20245 states. [2022-01-18 11:12:38,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20245 to 8334. [2022-01-18 11:12:38,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8334 states, 8333 states have (on average 2.655226209048362) internal successors, (22126), 8333 states have internal predecessors, (22126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:38,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 22126 transitions. [2022-01-18 11:12:38,069 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 22126 transitions. Word has length 153 [2022-01-18 11:12:38,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:38,069 INFO L470 AbstractCegarLoop]: Abstraction has 8334 states and 22126 transitions. [2022-01-18 11:12:38,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:38,070 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 22126 transitions. [2022-01-18 11:12:38,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:12:38,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:38,079 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:38,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable572 [2022-01-18 11:12:38,079 INFO L402 AbstractCegarLoop]: === Iteration 574 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:38,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:38,079 INFO L85 PathProgramCache]: Analyzing trace with hash 456235952, now seen corresponding path program 20 times [2022-01-18 11:12:38,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:38,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000648279] [2022-01-18 11:12:38,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:38,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:38,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:38,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:38,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000648279] [2022-01-18 11:12:38,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000648279] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:38,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:38,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:12:38,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785421752] [2022-01-18 11:12:38,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:38,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:12:38,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:38,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:12:38,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:12:38,580 INFO L87 Difference]: Start difference. First operand 8334 states and 22126 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:42,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:42,601 INFO L93 Difference]: Finished difference Result 20694 states and 54872 transitions. [2022-01-18 11:12:42,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:12:42,601 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:12:42,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:42,629 INFO L225 Difference]: With dead ends: 20694 [2022-01-18 11:12:42,629 INFO L226 Difference]: Without dead ends: 20202 [2022-01-18 11:12:42,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 727 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1295, Invalid=4557, Unknown=0, NotChecked=0, Total=5852 [2022-01-18 11:12:42,630 INFO L933 BasicCegarLoop]: 578 mSDtfsCounter, 1423 mSDsluCounter, 12233 mSDsCounter, 0 mSdLazyCounter, 2368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 12553 SdHoareTripleChecker+Invalid, 2368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:42,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1423 Valid, 12553 Invalid, 2368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2368 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 11:12:42,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20202 states. [2022-01-18 11:12:42,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20202 to 8330. [2022-01-18 11:12:42,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8329 states have (on average 2.6551806939608595) internal successors, (22115), 8329 states have internal predecessors, (22115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:42,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 22115 transitions. [2022-01-18 11:12:42,803 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 22115 transitions. Word has length 153 [2022-01-18 11:12:42,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:42,803 INFO L470 AbstractCegarLoop]: Abstraction has 8330 states and 22115 transitions. [2022-01-18 11:12:42,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:42,803 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 22115 transitions. [2022-01-18 11:12:42,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:12:42,812 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:42,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:42,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable573 [2022-01-18 11:12:42,813 INFO L402 AbstractCegarLoop]: === Iteration 575 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:42,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:42,813 INFO L85 PathProgramCache]: Analyzing trace with hash -664821388, now seen corresponding path program 21 times [2022-01-18 11:12:42,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:42,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504162534] [2022-01-18 11:12:42,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:42,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:43,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:43,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:43,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504162534] [2022-01-18 11:12:43,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504162534] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:43,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:43,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:12:43,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179524465] [2022-01-18 11:12:43,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:43,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:12:43,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:43,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:12:43,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:12:43,295 INFO L87 Difference]: Start difference. First operand 8330 states and 22115 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:47,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:47,831 INFO L93 Difference]: Finished difference Result 20862 states and 55314 transitions. [2022-01-18 11:12:47,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 11:12:47,832 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:12:47,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:47,862 INFO L225 Difference]: With dead ends: 20862 [2022-01-18 11:12:47,862 INFO L226 Difference]: Without dead ends: 20330 [2022-01-18 11:12:47,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1142 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1615, Invalid=5695, Unknown=0, NotChecked=0, Total=7310 [2022-01-18 11:12:47,863 INFO L933 BasicCegarLoop]: 584 mSDtfsCounter, 1546 mSDsluCounter, 11786 mSDsCounter, 0 mSdLazyCounter, 2257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 12124 SdHoareTripleChecker+Invalid, 2257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:47,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1546 Valid, 12124 Invalid, 2257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2257 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:12:47,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20330 states. [2022-01-18 11:12:48,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20330 to 8326. [2022-01-18 11:12:48,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 2.655135135135135) internal successors, (22104), 8325 states have internal predecessors, (22104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:48,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 22104 transitions. [2022-01-18 11:12:48,049 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 22104 transitions. Word has length 153 [2022-01-18 11:12:48,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:48,049 INFO L470 AbstractCegarLoop]: Abstraction has 8326 states and 22104 transitions. [2022-01-18 11:12:48,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:48,049 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 22104 transitions. [2022-01-18 11:12:48,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:12:48,058 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:48,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:48,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable574 [2022-01-18 11:12:48,058 INFO L402 AbstractCegarLoop]: === Iteration 576 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:48,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:48,059 INFO L85 PathProgramCache]: Analyzing trace with hash -592191664, now seen corresponding path program 22 times [2022-01-18 11:12:48,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:48,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768472067] [2022-01-18 11:12:48,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:48,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:48,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:48,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:48,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768472067] [2022-01-18 11:12:48,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768472067] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:48,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:48,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:12:48,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506120498] [2022-01-18 11:12:48,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:48,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:12:48,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:48,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:12:48,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:12:48,547 INFO L87 Difference]: Start difference. First operand 8326 states and 22104 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:53,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:53,251 INFO L93 Difference]: Finished difference Result 20645 states and 54735 transitions. [2022-01-18 11:12:53,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 11:12:53,251 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:12:53,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:53,280 INFO L225 Difference]: With dead ends: 20645 [2022-01-18 11:12:53,280 INFO L226 Difference]: Without dead ends: 20111 [2022-01-18 11:12:53,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 897 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1633, Invalid=5009, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 11:12:53,281 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 1508 mSDsluCounter, 11676 mSDsCounter, 0 mSdLazyCounter, 2237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 12000 SdHoareTripleChecker+Invalid, 2237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:53,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1508 Valid, 12000 Invalid, 2237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2237 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:12:53,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20111 states. [2022-01-18 11:12:53,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20111 to 8330. [2022-01-18 11:12:53,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8329 states have (on average 2.654700444231) internal successors, (22111), 8329 states have internal predecessors, (22111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:53,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 22111 transitions. [2022-01-18 11:12:53,490 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 22111 transitions. Word has length 153 [2022-01-18 11:12:53,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:53,490 INFO L470 AbstractCegarLoop]: Abstraction has 8330 states and 22111 transitions. [2022-01-18 11:12:53,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:53,490 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 22111 transitions. [2022-01-18 11:12:53,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:12:53,499 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:53,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:53,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable575 [2022-01-18 11:12:53,499 INFO L402 AbstractCegarLoop]: === Iteration 577 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:53,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:53,500 INFO L85 PathProgramCache]: Analyzing trace with hash 2144860282, now seen corresponding path program 23 times [2022-01-18 11:12:53,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:53,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057004982] [2022-01-18 11:12:53,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:53,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:54,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:54,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:54,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057004982] [2022-01-18 11:12:54,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057004982] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:54,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:54,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:12:54,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018522578] [2022-01-18 11:12:54,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:54,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:12:54,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:54,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:12:54,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:12:54,014 INFO L87 Difference]: Start difference. First operand 8330 states and 22111 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:58,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:12:58,160 INFO L93 Difference]: Finished difference Result 20653 states and 54753 transitions. [2022-01-18 11:12:58,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:12:58,160 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:12:58,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:12:58,191 INFO L225 Difference]: With dead ends: 20653 [2022-01-18 11:12:58,191 INFO L226 Difference]: Without dead ends: 20162 [2022-01-18 11:12:58,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1391, Invalid=4461, Unknown=0, NotChecked=0, Total=5852 [2022-01-18 11:12:58,192 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 1466 mSDsluCounter, 11664 mSDsCounter, 0 mSdLazyCounter, 2258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 11987 SdHoareTripleChecker+Invalid, 2258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:12:58,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1466 Valid, 11987 Invalid, 2258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2258 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:12:58,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20162 states. [2022-01-18 11:12:58,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20162 to 8334. [2022-01-18 11:12:58,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8334 states, 8333 states have (on average 2.654266170646826) internal successors, (22118), 8333 states have internal predecessors, (22118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:58,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 22118 transitions. [2022-01-18 11:12:58,385 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 22118 transitions. Word has length 153 [2022-01-18 11:12:58,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:12:58,385 INFO L470 AbstractCegarLoop]: Abstraction has 8334 states and 22118 transitions. [2022-01-18 11:12:58,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:12:58,385 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 22118 transitions. [2022-01-18 11:12:58,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:12:58,395 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:12:58,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:12:58,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable576 [2022-01-18 11:12:58,395 INFO L402 AbstractCegarLoop]: === Iteration 578 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:12:58,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:12:58,395 INFO L85 PathProgramCache]: Analyzing trace with hash -522583896, now seen corresponding path program 24 times [2022-01-18 11:12:58,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:12:58,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594736602] [2022-01-18 11:12:58,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:12:58,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:12:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:12:58,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:12:58,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:12:58,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594736602] [2022-01-18 11:12:58,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594736602] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:12:58,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:12:58,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:12:58,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789737294] [2022-01-18 11:12:58,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:12:58,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:12:58,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:12:58,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:12:58,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:12:58,871 INFO L87 Difference]: Start difference. First operand 8334 states and 22118 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:02,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:02,540 INFO L93 Difference]: Finished difference Result 20603 states and 54620 transitions. [2022-01-18 11:13:02,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 11:13:02,540 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:13:02,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:02,571 INFO L225 Difference]: With dead ends: 20603 [2022-01-18 11:13:02,572 INFO L226 Difference]: Without dead ends: 20099 [2022-01-18 11:13:02,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1255, Invalid=4445, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 11:13:02,572 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 1414 mSDsluCounter, 10703 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 11055 SdHoareTripleChecker+Invalid, 2080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:02,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1414 Valid, 11055 Invalid, 2080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2080 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:13:02,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20099 states. [2022-01-18 11:13:02,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20099 to 8318. [2022-01-18 11:13:02,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8318 states, 8317 states have (on average 2.655524828664182) internal successors, (22086), 8317 states have internal predecessors, (22086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:02,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8318 states to 8318 states and 22086 transitions. [2022-01-18 11:13:02,761 INFO L78 Accepts]: Start accepts. Automaton has 8318 states and 22086 transitions. Word has length 153 [2022-01-18 11:13:02,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:02,761 INFO L470 AbstractCegarLoop]: Abstraction has 8318 states and 22086 transitions. [2022-01-18 11:13:02,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:02,761 INFO L276 IsEmpty]: Start isEmpty. Operand 8318 states and 22086 transitions. [2022-01-18 11:13:02,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:13:02,770 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:02,770 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:02,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable577 [2022-01-18 11:13:02,771 INFO L402 AbstractCegarLoop]: === Iteration 579 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:02,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:02,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1782868580, now seen corresponding path program 25 times [2022-01-18 11:13:02,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:02,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057411224] [2022-01-18 11:13:02,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:02,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:03,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:03,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:03,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057411224] [2022-01-18 11:13:03,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057411224] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:03,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:03,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:13:03,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495373460] [2022-01-18 11:13:03,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:03,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:13:03,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:03,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:13:03,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:13:03,305 INFO L87 Difference]: Start difference. First operand 8318 states and 22086 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:07,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:07,331 INFO L93 Difference]: Finished difference Result 20665 states and 54794 transitions. [2022-01-18 11:13:07,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 11:13:07,331 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:13:07,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:07,359 INFO L225 Difference]: With dead ends: 20665 [2022-01-18 11:13:07,359 INFO L226 Difference]: Without dead ends: 20174 [2022-01-18 11:13:07,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1271, Invalid=4131, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 11:13:07,360 INFO L933 BasicCegarLoop]: 574 mSDtfsCounter, 1436 mSDsluCounter, 12201 mSDsCounter, 0 mSdLazyCounter, 2357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 12503 SdHoareTripleChecker+Invalid, 2357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:07,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1436 Valid, 12503 Invalid, 2357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2357 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:13:07,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20174 states. [2022-01-18 11:13:07,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20174 to 8334. [2022-01-18 11:13:07,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8334 states, 8333 states have (on average 2.655226209048362) internal successors, (22126), 8333 states have internal predecessors, (22126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:07,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 22126 transitions. [2022-01-18 11:13:07,533 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 22126 transitions. Word has length 153 [2022-01-18 11:13:07,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:07,534 INFO L470 AbstractCegarLoop]: Abstraction has 8334 states and 22126 transitions. [2022-01-18 11:13:07,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:07,534 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 22126 transitions. [2022-01-18 11:13:07,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:13:07,543 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:07,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:07,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable578 [2022-01-18 11:13:07,543 INFO L402 AbstractCegarLoop]: === Iteration 580 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:07,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:07,544 INFO L85 PathProgramCache]: Analyzing trace with hash -155345462, now seen corresponding path program 26 times [2022-01-18 11:13:07,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:07,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740511305] [2022-01-18 11:13:07,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:07,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:08,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:08,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:08,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740511305] [2022-01-18 11:13:08,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740511305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:08,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:08,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:13:08,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577978285] [2022-01-18 11:13:08,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:08,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:13:08,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:08,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:13:08,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:13:08,039 INFO L87 Difference]: Start difference. First operand 8334 states and 22126 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:11,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:11,942 INFO L93 Difference]: Finished difference Result 20643 states and 54738 transitions. [2022-01-18 11:13:11,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:13:11,943 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:13:11,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:11,970 INFO L225 Difference]: With dead ends: 20643 [2022-01-18 11:13:11,971 INFO L226 Difference]: Without dead ends: 20151 [2022-01-18 11:13:11,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 738 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1285, Invalid=4567, Unknown=0, NotChecked=0, Total=5852 [2022-01-18 11:13:11,972 INFO L933 BasicCegarLoop]: 583 mSDtfsCounter, 1432 mSDsluCounter, 11798 mSDsCounter, 0 mSdLazyCounter, 2281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 12121 SdHoareTripleChecker+Invalid, 2281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:11,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1432 Valid, 12121 Invalid, 2281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2281 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:13:11,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20151 states. [2022-01-18 11:13:12,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20151 to 8330. [2022-01-18 11:13:12,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8329 states have (on average 2.6551806939608595) internal successors, (22115), 8329 states have internal predecessors, (22115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:12,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 22115 transitions. [2022-01-18 11:13:12,143 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 22115 transitions. Word has length 153 [2022-01-18 11:13:12,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:12,143 INFO L470 AbstractCegarLoop]: Abstraction has 8330 states and 22115 transitions. [2022-01-18 11:13:12,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:12,143 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 22115 transitions. [2022-01-18 11:13:12,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:13:12,152 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:12,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:12,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable579 [2022-01-18 11:13:12,152 INFO L402 AbstractCegarLoop]: === Iteration 581 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:12,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:12,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1276402802, now seen corresponding path program 27 times [2022-01-18 11:13:12,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:12,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414117406] [2022-01-18 11:13:12,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:12,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:12,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:12,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:12,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414117406] [2022-01-18 11:13:12,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414117406] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:12,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:12,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:13:12,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884161262] [2022-01-18 11:13:12,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:12,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:13:12,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:12,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:13:12,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:13:12,637 INFO L87 Difference]: Start difference. First operand 8330 states and 22115 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:17,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:17,060 INFO L93 Difference]: Finished difference Result 20679 states and 54833 transitions. [2022-01-18 11:13:17,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 11:13:17,060 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:13:17,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:17,089 INFO L225 Difference]: With dead ends: 20679 [2022-01-18 11:13:17,089 INFO L226 Difference]: Without dead ends: 20147 [2022-01-18 11:13:17,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1262 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1643, Invalid=5839, Unknown=0, NotChecked=0, Total=7482 [2022-01-18 11:13:17,090 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 1507 mSDsluCounter, 11364 mSDsCounter, 0 mSdLazyCounter, 2175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 11709 SdHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:17,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1507 Valid, 11709 Invalid, 2175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2175 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:13:17,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20147 states. [2022-01-18 11:13:17,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20147 to 8326. [2022-01-18 11:13:17,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 2.655135135135135) internal successors, (22104), 8325 states have internal predecessors, (22104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:17,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 22104 transitions. [2022-01-18 11:13:17,275 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 22104 transitions. Word has length 153 [2022-01-18 11:13:17,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:17,276 INFO L470 AbstractCegarLoop]: Abstraction has 8326 states and 22104 transitions. [2022-01-18 11:13:17,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:17,276 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 22104 transitions. [2022-01-18 11:13:17,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:13:17,285 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:17,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:17,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable580 [2022-01-18 11:13:17,285 INFO L402 AbstractCegarLoop]: === Iteration 582 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:17,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:17,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1801538338, now seen corresponding path program 28 times [2022-01-18 11:13:17,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:17,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567554527] [2022-01-18 11:13:17,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:17,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:17,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:17,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:17,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567554527] [2022-01-18 11:13:17,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567554527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:17,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:17,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:13:17,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628973091] [2022-01-18 11:13:17,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:17,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:13:17,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:17,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:13:17,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:13:17,768 INFO L87 Difference]: Start difference. First operand 8326 states and 22104 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:22,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:22,942 INFO L93 Difference]: Finished difference Result 20715 states and 54928 transitions. [2022-01-18 11:13:22,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-01-18 11:13:22,942 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:13:22,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:22,966 INFO L225 Difference]: With dead ends: 20715 [2022-01-18 11:13:22,966 INFO L226 Difference]: Without dead ends: 20143 [2022-01-18 11:13:22,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1825 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=2069, Invalid=7243, Unknown=0, NotChecked=0, Total=9312 [2022-01-18 11:13:22,967 INFO L933 BasicCegarLoop]: 601 mSDtfsCounter, 1583 mSDsluCounter, 12077 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 12416 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:22,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1583 Valid, 12416 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:13:22,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20143 states. [2022-01-18 11:13:23,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20143 to 8322. [2022-01-18 11:13:23,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8322 states, 8321 states have (on average 2.655089532508112) internal successors, (22093), 8321 states have internal predecessors, (22093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:23,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8322 states to 8322 states and 22093 transitions. [2022-01-18 11:13:23,125 INFO L78 Accepts]: Start accepts. Automaton has 8322 states and 22093 transitions. Word has length 153 [2022-01-18 11:13:23,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:23,125 INFO L470 AbstractCegarLoop]: Abstraction has 8322 states and 22093 transitions. [2022-01-18 11:13:23,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:23,126 INFO L276 IsEmpty]: Start isEmpty. Operand 8322 states and 22093 transitions. [2022-01-18 11:13:23,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:13:23,135 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:23,135 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:23,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable581 [2022-01-18 11:13:23,135 INFO L402 AbstractCegarLoop]: === Iteration 583 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:23,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:23,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1149245072, now seen corresponding path program 29 times [2022-01-18 11:13:23,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:23,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752925184] [2022-01-18 11:13:23,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:23,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:23,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:23,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:23,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752925184] [2022-01-18 11:13:23,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752925184] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:23,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:23,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:13:23,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318966048] [2022-01-18 11:13:23,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:23,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:13:23,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:23,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:13:23,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:13:23,613 INFO L87 Difference]: Start difference. First operand 8322 states and 22093 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:29,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:29,456 INFO L93 Difference]: Finished difference Result 20711 states and 54913 transitions. [2022-01-18 11:13:29,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-01-18 11:13:29,456 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:13:29,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:29,483 INFO L225 Difference]: With dead ends: 20711 [2022-01-18 11:13:29,483 INFO L226 Difference]: Without dead ends: 20083 [2022-01-18 11:13:29,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2422 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=2521, Invalid=8609, Unknown=0, NotChecked=0, Total=11130 [2022-01-18 11:13:29,485 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 1673 mSDsluCounter, 11008 mSDsCounter, 0 mSdLazyCounter, 2057 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1673 SdHoareTripleChecker+Valid, 11377 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:29,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1673 Valid, 11377 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2057 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:13:29,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20083 states. [2022-01-18 11:13:29,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20083 to 8302. [2022-01-18 11:13:29,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8302 states, 8301 states have (on average 2.656788338754367) internal successors, (22054), 8301 states have internal predecessors, (22054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:29,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8302 states to 8302 states and 22054 transitions. [2022-01-18 11:13:29,652 INFO L78 Accepts]: Start accepts. Automaton has 8302 states and 22054 transitions. Word has length 153 [2022-01-18 11:13:29,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:29,653 INFO L470 AbstractCegarLoop]: Abstraction has 8302 states and 22054 transitions. [2022-01-18 11:13:29,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:29,653 INFO L276 IsEmpty]: Start isEmpty. Operand 8302 states and 22054 transitions. [2022-01-18 11:13:29,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:13:29,662 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:29,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:29,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable582 [2022-01-18 11:13:29,662 INFO L402 AbstractCegarLoop]: === Iteration 584 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:29,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:29,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1329374552, now seen corresponding path program 30 times [2022-01-18 11:13:29,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:29,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023570395] [2022-01-18 11:13:29,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:29,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:30,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:30,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:30,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023570395] [2022-01-18 11:13:30,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023570395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:30,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:30,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:13:30,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082513417] [2022-01-18 11:13:30,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:30,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:13:30,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:30,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:13:30,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:13:30,238 INFO L87 Difference]: Start difference. First operand 8302 states and 22054 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:34,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:34,074 INFO L93 Difference]: Finished difference Result 20531 states and 54450 transitions. [2022-01-18 11:13:34,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 11:13:34,075 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:13:34,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:34,098 INFO L225 Difference]: With dead ends: 20531 [2022-01-18 11:13:34,098 INFO L226 Difference]: Without dead ends: 20040 [2022-01-18 11:13:34,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1201, Invalid=3911, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 11:13:34,099 INFO L933 BasicCegarLoop]: 572 mSDtfsCounter, 1450 mSDsluCounter, 11610 mSDsCounter, 0 mSdLazyCounter, 2245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 11927 SdHoareTripleChecker+Invalid, 2245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:34,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1450 Valid, 11927 Invalid, 2245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2245 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:13:34,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20040 states. [2022-01-18 11:13:34,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20040 to 8334. [2022-01-18 11:13:34,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8334 states, 8333 states have (on average 2.656666266650666) internal successors, (22138), 8333 states have internal predecessors, (22138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:34,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8334 states to 8334 states and 22138 transitions. [2022-01-18 11:13:34,246 INFO L78 Accepts]: Start accepts. Automaton has 8334 states and 22138 transitions. Word has length 153 [2022-01-18 11:13:34,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:34,246 INFO L470 AbstractCegarLoop]: Abstraction has 8334 states and 22138 transitions. [2022-01-18 11:13:34,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:34,246 INFO L276 IsEmpty]: Start isEmpty. Operand 8334 states and 22138 transitions. [2022-01-18 11:13:34,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:13:34,254 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:34,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:34,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable583 [2022-01-18 11:13:34,255 INFO L402 AbstractCegarLoop]: === Iteration 585 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:34,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:34,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1338069626, now seen corresponding path program 31 times [2022-01-18 11:13:34,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:34,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012472214] [2022-01-18 11:13:34,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:34,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:34,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:34,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:34,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012472214] [2022-01-18 11:13:34,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012472214] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:34,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:34,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:13:34,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616674495] [2022-01-18 11:13:34,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:34,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:13:34,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:34,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:13:34,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:13:34,751 INFO L87 Difference]: Start difference. First operand 8334 states and 22138 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:38,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:38,435 INFO L93 Difference]: Finished difference Result 20528 states and 54440 transitions. [2022-01-18 11:13:38,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:13:38,435 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:13:38,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:38,463 INFO L225 Difference]: With dead ends: 20528 [2022-01-18 11:13:38,463 INFO L226 Difference]: Without dead ends: 20036 [2022-01-18 11:13:38,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1277, Invalid=4575, Unknown=0, NotChecked=0, Total=5852 [2022-01-18 11:13:38,464 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 1491 mSDsluCounter, 11094 mSDsCounter, 0 mSdLazyCounter, 2142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 11430 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:38,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1491 Valid, 11430 Invalid, 2142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2142 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:13:38,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20036 states. [2022-01-18 11:13:38,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20036 to 8330. [2022-01-18 11:13:38,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8330 states, 8329 states have (on average 2.656621443150438) internal successors, (22127), 8329 states have internal predecessors, (22127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:38,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8330 states to 8330 states and 22127 transitions. [2022-01-18 11:13:38,641 INFO L78 Accepts]: Start accepts. Automaton has 8330 states and 22127 transitions. Word has length 153 [2022-01-18 11:13:38,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:38,641 INFO L470 AbstractCegarLoop]: Abstraction has 8330 states and 22127 transitions. [2022-01-18 11:13:38,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:38,641 INFO L276 IsEmpty]: Start isEmpty. Operand 8330 states and 22127 transitions. [2022-01-18 11:13:38,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:13:38,651 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:38,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:38,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable584 [2022-01-18 11:13:38,651 INFO L402 AbstractCegarLoop]: === Iteration 586 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:38,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:38,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1835840330, now seen corresponding path program 32 times [2022-01-18 11:13:38,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:38,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840258023] [2022-01-18 11:13:38,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:38,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:39,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:39,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:39,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840258023] [2022-01-18 11:13:39,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840258023] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:39,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:39,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:13:39,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736216235] [2022-01-18 11:13:39,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:39,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:13:39,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:39,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:13:39,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:13:39,142 INFO L87 Difference]: Start difference. First operand 8330 states and 22127 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:43,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:43,515 INFO L93 Difference]: Finished difference Result 20564 states and 54535 transitions. [2022-01-18 11:13:43,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 11:13:43,515 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:13:43,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:43,544 INFO L225 Difference]: With dead ends: 20564 [2022-01-18 11:13:43,544 INFO L226 Difference]: Without dead ends: 20032 [2022-01-18 11:13:43,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1268 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1623, Invalid=5859, Unknown=0, NotChecked=0, Total=7482 [2022-01-18 11:13:43,545 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 1574 mSDsluCounter, 11790 mSDsCounter, 0 mSdLazyCounter, 2224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 12120 SdHoareTripleChecker+Invalid, 2224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:43,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1574 Valid, 12120 Invalid, 2224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2224 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:13:43,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20032 states. [2022-01-18 11:13:43,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20032 to 8326. [2022-01-18 11:13:43,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8326 states, 8325 states have (on average 2.6565765765765765) internal successors, (22116), 8325 states have internal predecessors, (22116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:43,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8326 states to 8326 states and 22116 transitions. [2022-01-18 11:13:43,718 INFO L78 Accepts]: Start accepts. Automaton has 8326 states and 22116 transitions. Word has length 153 [2022-01-18 11:13:43,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:43,718 INFO L470 AbstractCegarLoop]: Abstraction has 8326 states and 22116 transitions. [2022-01-18 11:13:43,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:43,718 INFO L276 IsEmpty]: Start isEmpty. Operand 8326 states and 22116 transitions. [2022-01-18 11:13:43,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:13:43,727 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:43,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:43,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable585 [2022-01-18 11:13:43,727 INFO L402 AbstractCegarLoop]: === Iteration 587 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:43,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:43,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1310704794, now seen corresponding path program 33 times [2022-01-18 11:13:43,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:43,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531335784] [2022-01-18 11:13:43,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:43,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:44,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:44,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:44,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531335784] [2022-01-18 11:13:44,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531335784] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:44,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:44,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:13:44,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499947229] [2022-01-18 11:13:44,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:44,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:13:44,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:44,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:13:44,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:13:44,220 INFO L87 Difference]: Start difference. First operand 8326 states and 22116 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:49,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:49,492 INFO L93 Difference]: Finished difference Result 20600 states and 54630 transitions. [2022-01-18 11:13:49,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-01-18 11:13:49,492 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:13:49,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:49,519 INFO L225 Difference]: With dead ends: 20600 [2022-01-18 11:13:49,520 INFO L226 Difference]: Without dead ends: 20028 [2022-01-18 11:13:49,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1766 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2037, Invalid=7275, Unknown=0, NotChecked=0, Total=9312 [2022-01-18 11:13:49,521 INFO L933 BasicCegarLoop]: 585 mSDtfsCounter, 1644 mSDsluCounter, 12517 mSDsCounter, 0 mSdLazyCounter, 2300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1644 SdHoareTripleChecker+Valid, 12839 SdHoareTripleChecker+Invalid, 2300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:49,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1644 Valid, 12839 Invalid, 2300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2300 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:13:49,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20028 states. [2022-01-18 11:13:49,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20028 to 8322. [2022-01-18 11:13:49,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8322 states, 8321 states have (on average 2.656531666866963) internal successors, (22105), 8321 states have internal predecessors, (22105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:49,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8322 states to 8322 states and 22105 transitions. [2022-01-18 11:13:49,684 INFO L78 Accepts]: Start accepts. Automaton has 8322 states and 22105 transitions. Word has length 153 [2022-01-18 11:13:49,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:49,685 INFO L470 AbstractCegarLoop]: Abstraction has 8322 states and 22105 transitions. [2022-01-18 11:13:49,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:49,685 INFO L276 IsEmpty]: Start isEmpty. Operand 8322 states and 22105 transitions. [2022-01-18 11:13:49,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:13:49,693 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:49,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:49,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable586 [2022-01-18 11:13:49,694 INFO L402 AbstractCegarLoop]: === Iteration 588 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:49,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:49,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1962998060, now seen corresponding path program 34 times [2022-01-18 11:13:49,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:49,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155757062] [2022-01-18 11:13:49,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:49,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:50,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:50,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:50,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155757062] [2022-01-18 11:13:50,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155757062] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:50,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:50,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:13:50,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823870127] [2022-01-18 11:13:50,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:50,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:13:50,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:50,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:13:50,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:13:50,180 INFO L87 Difference]: Start difference. First operand 8322 states and 22105 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:56,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:13:56,000 INFO L93 Difference]: Finished difference Result 20636 states and 54725 transitions. [2022-01-18 11:13:56,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 11:13:56,001 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:13:56,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:13:56,028 INFO L225 Difference]: With dead ends: 20636 [2022-01-18 11:13:56,028 INFO L226 Difference]: Without dead ends: 20024 [2022-01-18 11:13:56,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2506 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=2525, Invalid=8817, Unknown=0, NotChecked=0, Total=11342 [2022-01-18 11:13:56,030 INFO L933 BasicCegarLoop]: 593 mSDtfsCounter, 1732 mSDsluCounter, 11492 mSDsCounter, 0 mSdLazyCounter, 2108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 11846 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:13:56,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1732 Valid, 11846 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2108 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:13:56,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20024 states. [2022-01-18 11:13:56,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20024 to 8318. [2022-01-18 11:13:56,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8318 states, 8317 states have (on average 2.65648671395936) internal successors, (22094), 8317 states have internal predecessors, (22094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:56,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8318 states to 8318 states and 22094 transitions. [2022-01-18 11:13:56,198 INFO L78 Accepts]: Start accepts. Automaton has 8318 states and 22094 transitions. Word has length 153 [2022-01-18 11:13:56,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:13:56,198 INFO L470 AbstractCegarLoop]: Abstraction has 8318 states and 22094 transitions. [2022-01-18 11:13:56,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:13:56,198 INFO L276 IsEmpty]: Start isEmpty. Operand 8318 states and 22094 transitions. [2022-01-18 11:13:56,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:13:56,207 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:13:56,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:13:56,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable587 [2022-01-18 11:13:56,207 INFO L402 AbstractCegarLoop]: === Iteration 589 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:13:56,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:13:56,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1122284992, now seen corresponding path program 35 times [2022-01-18 11:13:56,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:13:56,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068629914] [2022-01-18 11:13:56,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:13:56,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:13:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:13:56,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:13:56,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:13:56,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068629914] [2022-01-18 11:13:56,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068629914] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:13:56,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:13:56,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:13:56,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934192885] [2022-01-18 11:13:56,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:13:56,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:13:56,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:13:56,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:13:56,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:13:56,722 INFO L87 Difference]: Start difference. First operand 8318 states and 22094 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:03,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:03,434 INFO L93 Difference]: Finished difference Result 20752 states and 55032 transitions. [2022-01-18 11:14:03,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-01-18 11:14:03,434 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:14:03,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:03,463 INFO L225 Difference]: With dead ends: 20752 [2022-01-18 11:14:03,463 INFO L226 Difference]: Without dead ends: 20012 [2022-01-18 11:14:03,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3241 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=3081, Invalid=10491, Unknown=0, NotChecked=0, Total=13572 [2022-01-18 11:14:03,465 INFO L933 BasicCegarLoop]: 602 mSDtfsCounter, 1848 mSDsluCounter, 11600 mSDsCounter, 0 mSdLazyCounter, 2113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1848 SdHoareTripleChecker+Valid, 11961 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:03,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1848 Valid, 11961 Invalid, 2113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2113 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:14:03,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20012 states. [2022-01-18 11:14:03,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20012 to 8306. [2022-01-18 11:14:03,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8306 states, 8305 states have (on average 2.656351595424443) internal successors, (22061), 8305 states have internal predecessors, (22061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:03,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8306 states to 8306 states and 22061 transitions. [2022-01-18 11:14:03,642 INFO L78 Accepts]: Start accepts. Automaton has 8306 states and 22061 transitions. Word has length 153 [2022-01-18 11:14:03,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:03,642 INFO L470 AbstractCegarLoop]: Abstraction has 8306 states and 22061 transitions. [2022-01-18 11:14:03,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:03,643 INFO L276 IsEmpty]: Start isEmpty. Operand 8306 states and 22061 transitions. [2022-01-18 11:14:03,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:14:03,652 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:03,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:03,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable588 [2022-01-18 11:14:03,653 INFO L402 AbstractCegarLoop]: === Iteration 590 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:03,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:03,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1864894446, now seen corresponding path program 36 times [2022-01-18 11:14:03,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:03,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761327581] [2022-01-18 11:14:03,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:03,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:04,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:04,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:04,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761327581] [2022-01-18 11:14:04,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761327581] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:04,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:04,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:14:04,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624301605] [2022-01-18 11:14:04,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:04,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:14:04,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:04,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:14:04,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:14:04,171 INFO L87 Difference]: Start difference. First operand 8306 states and 22061 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:11,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:11,428 INFO L93 Difference]: Finished difference Result 20555 states and 54505 transitions. [2022-01-18 11:14:11,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-01-18 11:14:11,429 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:14:11,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:11,458 INFO L225 Difference]: With dead ends: 20555 [2022-01-18 11:14:11,459 INFO L226 Difference]: Without dead ends: 19727 [2022-01-18 11:14:11,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3617 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=3491, Invalid=11271, Unknown=0, NotChecked=0, Total=14762 [2022-01-18 11:14:11,461 INFO L933 BasicCegarLoop]: 601 mSDtfsCounter, 1942 mSDsluCounter, 10984 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1942 SdHoareTripleChecker+Valid, 11354 SdHoareTripleChecker+Invalid, 1947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:11,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1942 Valid, 11354 Invalid, 1947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1947 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:14:11,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19727 states. [2022-01-18 11:14:11,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19727 to 8246. [2022-01-18 11:14:11,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8246 states, 8245 states have (on average 2.6566403881140084) internal successors, (21904), 8245 states have internal predecessors, (21904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:11,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8246 states to 8246 states and 21904 transitions. [2022-01-18 11:14:11,650 INFO L78 Accepts]: Start accepts. Automaton has 8246 states and 21904 transitions. Word has length 153 [2022-01-18 11:14:11,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:11,650 INFO L470 AbstractCegarLoop]: Abstraction has 8246 states and 21904 transitions. [2022-01-18 11:14:11,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:11,650 INFO L276 IsEmpty]: Start isEmpty. Operand 8246 states and 21904 transitions. [2022-01-18 11:14:11,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:14:11,660 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:11,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:11,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable589 [2022-01-18 11:14:11,660 INFO L402 AbstractCegarLoop]: === Iteration 591 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:11,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:11,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1387274738, now seen corresponding path program 37 times [2022-01-18 11:14:11,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:11,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419613417] [2022-01-18 11:14:11,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:11,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:12,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:12,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:12,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419613417] [2022-01-18 11:14:12,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419613417] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:12,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:12,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:14:12,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270401811] [2022-01-18 11:14:12,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:12,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:14:12,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:12,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:14:12,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:14:12,159 INFO L87 Difference]: Start difference. First operand 8246 states and 21904 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:15,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:15,897 INFO L93 Difference]: Finished difference Result 21210 states and 56290 transitions. [2022-01-18 11:14:15,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 11:14:15,897 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:14:15,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:15,920 INFO L225 Difference]: With dead ends: 21210 [2022-01-18 11:14:15,920 INFO L226 Difference]: Without dead ends: 20719 [2022-01-18 11:14:15,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1239, Invalid=4017, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 11:14:15,921 INFO L933 BasicCegarLoop]: 562 mSDtfsCounter, 1452 mSDsluCounter, 11429 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 11736 SdHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:15,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1452 Valid, 11736 Invalid, 2264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:14:15,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20719 states. [2022-01-18 11:14:16,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20719 to 8294. [2022-01-18 11:14:16,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8294 states, 8293 states have (on average 2.6566984203545156) internal successors, (22032), 8293 states have internal predecessors, (22032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:16,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8294 states to 8294 states and 22032 transitions. [2022-01-18 11:14:16,063 INFO L78 Accepts]: Start accepts. Automaton has 8294 states and 22032 transitions. Word has length 153 [2022-01-18 11:14:16,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:16,064 INFO L470 AbstractCegarLoop]: Abstraction has 8294 states and 22032 transitions. [2022-01-18 11:14:16,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:16,064 INFO L276 IsEmpty]: Start isEmpty. Operand 8294 states and 22032 transitions. [2022-01-18 11:14:16,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:14:16,072 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:16,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:16,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable590 [2022-01-18 11:14:16,072 INFO L402 AbstractCegarLoop]: === Iteration 592 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:16,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:16,072 INFO L85 PathProgramCache]: Analyzing trace with hash 240248380, now seen corresponding path program 38 times [2022-01-18 11:14:16,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:16,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165515898] [2022-01-18 11:14:16,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:16,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:16,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:16,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:16,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:16,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165515898] [2022-01-18 11:14:16,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165515898] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:16,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:16,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:14:16,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028029396] [2022-01-18 11:14:16,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:16,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:14:16,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:16,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:14:16,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:14:16,595 INFO L87 Difference]: Start difference. First operand 8294 states and 22032 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:20,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:20,461 INFO L93 Difference]: Finished difference Result 21188 states and 56234 transitions. [2022-01-18 11:14:20,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:14:20,461 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:14:20,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:20,489 INFO L225 Difference]: With dead ends: 21188 [2022-01-18 11:14:20,489 INFO L226 Difference]: Without dead ends: 20696 [2022-01-18 11:14:20,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1294, Invalid=4558, Unknown=0, NotChecked=0, Total=5852 [2022-01-18 11:14:20,490 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 1450 mSDsluCounter, 10384 mSDsCounter, 0 mSdLazyCounter, 2068 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 10736 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:20,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1450 Valid, 10736 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2068 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:14:20,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20696 states. [2022-01-18 11:14:20,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20696 to 8290. [2022-01-18 11:14:20,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8290 states, 8289 states have (on average 2.656653396067077) internal successors, (22021), 8289 states have internal predecessors, (22021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:20,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8290 states to 8290 states and 22021 transitions. [2022-01-18 11:14:20,660 INFO L78 Accepts]: Start accepts. Automaton has 8290 states and 22021 transitions. Word has length 153 [2022-01-18 11:14:20,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:20,660 INFO L470 AbstractCegarLoop]: Abstraction has 8290 states and 22021 transitions. [2022-01-18 11:14:20,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:20,660 INFO L276 IsEmpty]: Start isEmpty. Operand 8290 states and 22021 transitions. [2022-01-18 11:14:20,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:14:20,668 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:20,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:20,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable591 [2022-01-18 11:14:20,669 INFO L402 AbstractCegarLoop]: === Iteration 593 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:20,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:20,669 INFO L85 PathProgramCache]: Analyzing trace with hash -880808960, now seen corresponding path program 39 times [2022-01-18 11:14:20,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:20,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342397048] [2022-01-18 11:14:20,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:20,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:21,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:21,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:21,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342397048] [2022-01-18 11:14:21,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342397048] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:21,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:21,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:14:21,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049664619] [2022-01-18 11:14:21,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:21,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:14:21,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:21,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:14:21,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:14:21,202 INFO L87 Difference]: Start difference. First operand 8290 states and 22021 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:25,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:25,770 INFO L93 Difference]: Finished difference Result 21224 states and 56329 transitions. [2022-01-18 11:14:25,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 11:14:25,770 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:14:25,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:25,802 INFO L225 Difference]: With dead ends: 21224 [2022-01-18 11:14:25,802 INFO L226 Difference]: Without dead ends: 20692 [2022-01-18 11:14:25,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1301 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1649, Invalid=5833, Unknown=0, NotChecked=0, Total=7482 [2022-01-18 11:14:25,803 INFO L933 BasicCegarLoop]: 576 mSDtfsCounter, 1525 mSDsluCounter, 11095 mSDsCounter, 0 mSdLazyCounter, 2161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 11440 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:25,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1525 Valid, 11440 Invalid, 2161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2161 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:14:25,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20692 states. [2022-01-18 11:14:25,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20692 to 8286. [2022-01-18 11:14:25,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8286 states, 8285 states have (on average 2.656608328304164) internal successors, (22010), 8285 states have internal predecessors, (22010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:25,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8286 states to 8286 states and 22010 transitions. [2022-01-18 11:14:25,996 INFO L78 Accepts]: Start accepts. Automaton has 8286 states and 22010 transitions. Word has length 153 [2022-01-18 11:14:25,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:25,996 INFO L470 AbstractCegarLoop]: Abstraction has 8286 states and 22010 transitions. [2022-01-18 11:14:25,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:25,996 INFO L276 IsEmpty]: Start isEmpty. Operand 8286 states and 22010 transitions. [2022-01-18 11:14:26,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:14:26,005 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:26,005 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:26,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable592 [2022-01-18 11:14:26,005 INFO L402 AbstractCegarLoop]: === Iteration 594 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:26,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:26,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1405944496, now seen corresponding path program 40 times [2022-01-18 11:14:26,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:26,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964430938] [2022-01-18 11:14:26,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:26,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:26,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:26,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:26,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964430938] [2022-01-18 11:14:26,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964430938] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:26,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:26,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:14:26,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038304660] [2022-01-18 11:14:26,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:26,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:14:26,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:26,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:14:26,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:14:26,541 INFO L87 Difference]: Start difference. First operand 8286 states and 22010 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:31,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:31,822 INFO L93 Difference]: Finished difference Result 21260 states and 56424 transitions. [2022-01-18 11:14:31,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-01-18 11:14:31,822 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:14:31,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:31,852 INFO L225 Difference]: With dead ends: 21260 [2022-01-18 11:14:31,852 INFO L226 Difference]: Without dead ends: 20688 [2022-01-18 11:14:31,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1878 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2074, Invalid=7238, Unknown=0, NotChecked=0, Total=9312 [2022-01-18 11:14:31,853 INFO L933 BasicCegarLoop]: 585 mSDtfsCounter, 1597 mSDsluCounter, 11235 mSDsCounter, 0 mSdLazyCounter, 2153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1597 SdHoareTripleChecker+Valid, 11587 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:31,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1597 Valid, 11587 Invalid, 2153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2153 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:14:31,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20688 states. [2022-01-18 11:14:32,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20688 to 8282. [2022-01-18 11:14:32,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8282 states, 8281 states have (on average 2.6565632170027773) internal successors, (21999), 8281 states have internal predecessors, (21999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:32,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8282 states to 8282 states and 21999 transitions. [2022-01-18 11:14:32,041 INFO L78 Accepts]: Start accepts. Automaton has 8282 states and 21999 transitions. Word has length 153 [2022-01-18 11:14:32,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:32,041 INFO L470 AbstractCegarLoop]: Abstraction has 8282 states and 21999 transitions. [2022-01-18 11:14:32,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:32,041 INFO L276 IsEmpty]: Start isEmpty. Operand 8282 states and 21999 transitions. [2022-01-18 11:14:32,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:14:32,051 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:32,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:32,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable593 [2022-01-18 11:14:32,051 INFO L402 AbstractCegarLoop]: === Iteration 595 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:32,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:32,051 INFO L85 PathProgramCache]: Analyzing trace with hash -753651230, now seen corresponding path program 41 times [2022-01-18 11:14:32,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:32,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883864255] [2022-01-18 11:14:32,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:32,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:32,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:32,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:32,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883864255] [2022-01-18 11:14:32,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883864255] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:32,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:32,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:14:32,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683567925] [2022-01-18 11:14:32,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:32,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:14:32,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:32,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:14:32,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:14:32,585 INFO L87 Difference]: Start difference. First operand 8282 states and 21999 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:38,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:38,687 INFO L93 Difference]: Finished difference Result 21296 states and 56519 transitions. [2022-01-18 11:14:38,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 11:14:38,687 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:14:38,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:38,718 INFO L225 Difference]: With dead ends: 21296 [2022-01-18 11:14:38,718 INFO L226 Difference]: Without dead ends: 20684 [2022-01-18 11:14:38,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2546 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=2569, Invalid=8773, Unknown=0, NotChecked=0, Total=11342 [2022-01-18 11:14:38,720 INFO L933 BasicCegarLoop]: 594 mSDtfsCounter, 1696 mSDsluCounter, 10781 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 11154 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:38,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1696 Valid, 11154 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:14:38,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20684 states. [2022-01-18 11:14:38,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20684 to 8278. [2022-01-18 11:14:38,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8278 states, 8277 states have (on average 2.656518062099795) internal successors, (21988), 8277 states have internal predecessors, (21988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:38,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8278 states to 8278 states and 21988 transitions. [2022-01-18 11:14:38,913 INFO L78 Accepts]: Start accepts. Automaton has 8278 states and 21988 transitions. Word has length 153 [2022-01-18 11:14:38,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:38,914 INFO L470 AbstractCegarLoop]: Abstraction has 8278 states and 21988 transitions. [2022-01-18 11:14:38,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:38,914 INFO L276 IsEmpty]: Start isEmpty. Operand 8278 states and 21988 transitions. [2022-01-18 11:14:38,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:14:38,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:38,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:38,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable594 [2022-01-18 11:14:38,923 INFO L402 AbstractCegarLoop]: === Iteration 596 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:38,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:38,923 INFO L85 PathProgramCache]: Analyzing trace with hash 456033014, now seen corresponding path program 42 times [2022-01-18 11:14:38,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:38,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099624389] [2022-01-18 11:14:38,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:38,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:39,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:39,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:39,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099624389] [2022-01-18 11:14:39,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099624389] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:39,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:39,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:14:39,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287104757] [2022-01-18 11:14:39,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:39,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:14:39,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:39,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:14:39,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:14:39,479 INFO L87 Difference]: Start difference. First operand 8278 states and 21988 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:46,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:46,368 INFO L93 Difference]: Finished difference Result 21756 states and 57728 transitions. [2022-01-18 11:14:46,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-01-18 11:14:46,369 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:14:46,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:46,397 INFO L225 Difference]: With dead ends: 21756 [2022-01-18 11:14:46,397 INFO L226 Difference]: Without dead ends: 21016 [2022-01-18 11:14:46,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3212 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=3091, Invalid=10249, Unknown=0, NotChecked=0, Total=13340 [2022-01-18 11:14:46,399 INFO L933 BasicCegarLoop]: 601 mSDtfsCounter, 1840 mSDsluCounter, 11454 mSDsCounter, 0 mSdLazyCounter, 2142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1840 SdHoareTripleChecker+Valid, 11818 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:46,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1840 Valid, 11818 Invalid, 2142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2142 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:14:46,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21016 states. [2022-01-18 11:14:46,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21016 to 8266. [2022-01-18 11:14:46,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8266 states, 8265 states have (on average 2.655414398064126) internal successors, (21947), 8265 states have internal predecessors, (21947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:46,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8266 states to 8266 states and 21947 transitions. [2022-01-18 11:14:46,587 INFO L78 Accepts]: Start accepts. Automaton has 8266 states and 21947 transitions. Word has length 153 [2022-01-18 11:14:46,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:46,587 INFO L470 AbstractCegarLoop]: Abstraction has 8266 states and 21947 transitions. [2022-01-18 11:14:46,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:46,587 INFO L276 IsEmpty]: Start isEmpty. Operand 8266 states and 21947 transitions. [2022-01-18 11:14:46,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:14:46,596 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:46,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:46,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable595 [2022-01-18 11:14:46,596 INFO L402 AbstractCegarLoop]: === Iteration 597 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:46,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:46,597 INFO L85 PathProgramCache]: Analyzing trace with hash -913347950, now seen corresponding path program 43 times [2022-01-18 11:14:46,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:46,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360030305] [2022-01-18 11:14:46,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:46,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:47,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:47,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:47,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360030305] [2022-01-18 11:14:47,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360030305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:47,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:47,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:14:47,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399054887] [2022-01-18 11:14:47,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:47,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:14:47,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:47,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:14:47,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:14:47,077 INFO L87 Difference]: Start difference. First operand 8266 states and 21947 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:50,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:50,914 INFO L93 Difference]: Finished difference Result 21138 states and 56080 transitions. [2022-01-18 11:14:50,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 11:14:50,914 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:14:50,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:50,944 INFO L225 Difference]: With dead ends: 21138 [2022-01-18 11:14:50,945 INFO L226 Difference]: Without dead ends: 20647 [2022-01-18 11:14:50,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 677 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1313, Invalid=4237, Unknown=0, NotChecked=0, Total=5550 [2022-01-18 11:14:50,946 INFO L933 BasicCegarLoop]: 565 mSDtfsCounter, 1432 mSDsluCounter, 11478 mSDsCounter, 0 mSdLazyCounter, 2241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 11786 SdHoareTripleChecker+Invalid, 2241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:50,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1432 Valid, 11786 Invalid, 2241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2241 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:14:50,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20647 states. [2022-01-18 11:14:51,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20647 to 8286. [2022-01-18 11:14:51,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8286 states, 8285 states have (on average 2.6551599275799638) internal successors, (21998), 8285 states have internal predecessors, (21998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:51,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8286 states to 8286 states and 21998 transitions. [2022-01-18 11:14:51,134 INFO L78 Accepts]: Start accepts. Automaton has 8286 states and 21998 transitions. Word has length 153 [2022-01-18 11:14:51,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:51,134 INFO L470 AbstractCegarLoop]: Abstraction has 8286 states and 21998 transitions. [2022-01-18 11:14:51,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:51,134 INFO L276 IsEmpty]: Start isEmpty. Operand 8286 states and 21998 transitions. [2022-01-18 11:14:51,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:14:51,146 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:51,146 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:51,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable596 [2022-01-18 11:14:51,146 INFO L402 AbstractCegarLoop]: === Iteration 598 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:51,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:51,147 INFO L85 PathProgramCache]: Analyzing trace with hash 714175168, now seen corresponding path program 44 times [2022-01-18 11:14:51,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:51,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217791289] [2022-01-18 11:14:51,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:51,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:51,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:51,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:51,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217791289] [2022-01-18 11:14:51,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217791289] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:51,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:51,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:14:51,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117438688] [2022-01-18 11:14:51,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:51,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:14:51,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:51,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:14:51,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:14:51,679 INFO L87 Difference]: Start difference. First operand 8286 states and 21998 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:55,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:14:55,588 INFO L93 Difference]: Finished difference Result 21104 states and 55991 transitions. [2022-01-18 11:14:55,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:14:55,589 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:14:55,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:14:55,616 INFO L225 Difference]: With dead ends: 21104 [2022-01-18 11:14:55,616 INFO L226 Difference]: Without dead ends: 20612 [2022-01-18 11:14:55,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1304, Invalid=4548, Unknown=0, NotChecked=0, Total=5852 [2022-01-18 11:14:55,617 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 1435 mSDsluCounter, 10929 mSDsCounter, 0 mSdLazyCounter, 2140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 11267 SdHoareTripleChecker+Invalid, 2140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:14:55,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1435 Valid, 11267 Invalid, 2140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2140 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:14:55,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20612 states. [2022-01-18 11:14:55,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20612 to 8282. [2022-01-18 11:14:55,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8282 states, 8281 states have (on average 2.655114116652578) internal successors, (21987), 8281 states have internal predecessors, (21987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:55,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8282 states to 8282 states and 21987 transitions. [2022-01-18 11:14:55,798 INFO L78 Accepts]: Start accepts. Automaton has 8282 states and 21987 transitions. Word has length 153 [2022-01-18 11:14:55,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:14:55,798 INFO L470 AbstractCegarLoop]: Abstraction has 8282 states and 21987 transitions. [2022-01-18 11:14:55,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:14:55,798 INFO L276 IsEmpty]: Start isEmpty. Operand 8282 states and 21987 transitions. [2022-01-18 11:14:55,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:14:55,807 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:14:55,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:14:55,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable597 [2022-01-18 11:14:55,807 INFO L402 AbstractCegarLoop]: === Iteration 599 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:14:55,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:14:55,808 INFO L85 PathProgramCache]: Analyzing trace with hash -406882172, now seen corresponding path program 45 times [2022-01-18 11:14:55,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:14:55,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847344165] [2022-01-18 11:14:55,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:14:55,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:14:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:14:56,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:14:56,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:14:56,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847344165] [2022-01-18 11:14:56,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847344165] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:14:56,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:14:56,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:14:56,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641090619] [2022-01-18 11:14:56,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:14:56,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:14:56,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:14:56,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:14:56,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:14:56,449 INFO L87 Difference]: Start difference. First operand 8282 states and 21987 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:01,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:01,004 INFO L93 Difference]: Finished difference Result 21140 states and 56086 transitions. [2022-01-18 11:15:01,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 11:15:01,004 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:15:01,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:01,033 INFO L225 Difference]: With dead ends: 21140 [2022-01-18 11:15:01,033 INFO L226 Difference]: Without dead ends: 20608 [2022-01-18 11:15:01,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1288 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1669, Invalid=5813, Unknown=0, NotChecked=0, Total=7482 [2022-01-18 11:15:01,034 INFO L933 BasicCegarLoop]: 576 mSDtfsCounter, 1518 mSDsluCounter, 11079 mSDsCounter, 0 mSdLazyCounter, 2135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 11424 SdHoareTripleChecker+Invalid, 2135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:01,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1518 Valid, 11424 Invalid, 2135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2135 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:15:01,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20608 states. [2022-01-18 11:15:01,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20608 to 8278. [2022-01-18 11:15:01,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8278 states, 8277 states have (on average 2.655068261447384) internal successors, (21976), 8277 states have internal predecessors, (21976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:01,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8278 states to 8278 states and 21976 transitions. [2022-01-18 11:15:01,220 INFO L78 Accepts]: Start accepts. Automaton has 8278 states and 21976 transitions. Word has length 153 [2022-01-18 11:15:01,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:01,220 INFO L470 AbstractCegarLoop]: Abstraction has 8278 states and 21976 transitions. [2022-01-18 11:15:01,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:01,220 INFO L276 IsEmpty]: Start isEmpty. Operand 8278 states and 21976 transitions. [2022-01-18 11:15:01,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:15:01,229 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:01,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:01,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable598 [2022-01-18 11:15:01,230 INFO L402 AbstractCegarLoop]: === Iteration 600 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:01,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:01,230 INFO L85 PathProgramCache]: Analyzing trace with hash -932017708, now seen corresponding path program 46 times [2022-01-18 11:15:01,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:01,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015862613] [2022-01-18 11:15:01,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:01,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:01,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:01,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:01,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015862613] [2022-01-18 11:15:01,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015862613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:01,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:01,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:15:01,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468779236] [2022-01-18 11:15:01,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:01,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:15:01,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:01,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:15:01,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:15:01,766 INFO L87 Difference]: Start difference. First operand 8278 states and 21976 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:07,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:07,044 INFO L93 Difference]: Finished difference Result 21368 states and 56685 transitions. [2022-01-18 11:15:07,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-01-18 11:15:07,045 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:15:07,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:07,075 INFO L225 Difference]: With dead ends: 21368 [2022-01-18 11:15:07,075 INFO L226 Difference]: Without dead ends: 20796 [2022-01-18 11:15:07,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1806 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2059, Invalid=7061, Unknown=0, NotChecked=0, Total=9120 [2022-01-18 11:15:07,077 INFO L933 BasicCegarLoop]: 582 mSDtfsCounter, 1631 mSDsluCounter, 10607 mSDsCounter, 0 mSdLazyCounter, 2030 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1631 SdHoareTripleChecker+Valid, 10970 SdHoareTripleChecker+Invalid, 2030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:07,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1631 Valid, 10970 Invalid, 2030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2030 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:15:07,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20796 states. [2022-01-18 11:15:07,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20796 to 8274. [2022-01-18 11:15:07,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8274 states, 8273 states have (on average 2.655022361900157) internal successors, (21965), 8273 states have internal predecessors, (21965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:07,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8274 states to 8274 states and 21965 transitions. [2022-01-18 11:15:07,338 INFO L78 Accepts]: Start accepts. Automaton has 8274 states and 21965 transitions. Word has length 153 [2022-01-18 11:15:07,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:07,338 INFO L470 AbstractCegarLoop]: Abstraction has 8274 states and 21965 transitions. [2022-01-18 11:15:07,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:07,338 INFO L276 IsEmpty]: Start isEmpty. Operand 8274 states and 21965 transitions. [2022-01-18 11:15:07,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:15:07,347 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:07,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:07,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable599 [2022-01-18 11:15:07,347 INFO L402 AbstractCegarLoop]: === Iteration 601 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:07,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:07,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1122331112, now seen corresponding path program 47 times [2022-01-18 11:15:07,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:07,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488662403] [2022-01-18 11:15:07,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:07,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:07,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:07,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:07,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488662403] [2022-01-18 11:15:07,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488662403] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:07,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:07,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:15:07,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993061259] [2022-01-18 11:15:07,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:07,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:15:07,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:07,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:15:07,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:15:07,825 INFO L87 Difference]: Start difference. First operand 8274 states and 21965 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:11,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:11,753 INFO L93 Difference]: Finished difference Result 21114 states and 56010 transitions. [2022-01-18 11:15:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 11:15:11,753 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:15:11,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:11,783 INFO L225 Difference]: With dead ends: 21114 [2022-01-18 11:15:11,783 INFO L226 Difference]: Without dead ends: 20623 [2022-01-18 11:15:11,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1353, Invalid=4347, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 11:15:11,784 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 1432 mSDsluCounter, 12023 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 12320 SdHoareTripleChecker+Invalid, 2334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:11,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1432 Valid, 12320 Invalid, 2334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:15:11,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20623 states. [2022-01-18 11:15:11,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20623 to 8286. [2022-01-18 11:15:11,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8286 states, 8285 states have (on average 2.6546771273385636) internal successors, (21994), 8285 states have internal predecessors, (21994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:11,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8286 states to 8286 states and 21994 transitions. [2022-01-18 11:15:11,968 INFO L78 Accepts]: Start accepts. Automaton has 8286 states and 21994 transitions. Word has length 153 [2022-01-18 11:15:11,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:11,969 INFO L470 AbstractCegarLoop]: Abstraction has 8286 states and 21994 transitions. [2022-01-18 11:15:11,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:11,969 INFO L276 IsEmpty]: Start isEmpty. Operand 8286 states and 21994 transitions. [2022-01-18 11:15:11,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:15:11,978 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:11,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:11,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable600 [2022-01-18 11:15:11,978 INFO L402 AbstractCegarLoop]: === Iteration 602 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:11,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:11,978 INFO L85 PathProgramCache]: Analyzing trace with hash 505192006, now seen corresponding path program 48 times [2022-01-18 11:15:11,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:11,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318126476] [2022-01-18 11:15:11,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:11,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:12,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:12,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:12,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318126476] [2022-01-18 11:15:12,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318126476] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:12,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:12,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:15:12,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97733777] [2022-01-18 11:15:12,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:12,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:15:12,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:12,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:15:12,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:15:12,499 INFO L87 Difference]: Start difference. First operand 8286 states and 21994 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:16,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 11:15:16,397 INFO L93 Difference]: Finished difference Result 21072 states and 55899 transitions. [2022-01-18 11:15:16,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 11:15:16,398 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 11:15:16,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 11:15:16,427 INFO L225 Difference]: With dead ends: 21072 [2022-01-18 11:15:16,427 INFO L226 Difference]: Without dead ends: 20580 [2022-01-18 11:15:16,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 808 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1309, Invalid=4543, Unknown=0, NotChecked=0, Total=5852 [2022-01-18 11:15:16,428 INFO L933 BasicCegarLoop]: 568 mSDtfsCounter, 1436 mSDsluCounter, 10921 mSDsCounter, 0 mSdLazyCounter, 2143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 11260 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:16,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1436 Valid, 11260 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2143 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 11:15:16,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20580 states. [2022-01-18 11:15:16,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20580 to 8282. [2022-01-18 11:15:16,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8282 states, 8281 states have (on average 2.6546310832025117) internal successors, (21983), 8281 states have internal predecessors, (21983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:16,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8282 states to 8282 states and 21983 transitions. [2022-01-18 11:15:16,611 INFO L78 Accepts]: Start accepts. Automaton has 8282 states and 21983 transitions. Word has length 153 [2022-01-18 11:15:16,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 11:15:16,612 INFO L470 AbstractCegarLoop]: Abstraction has 8282 states and 21983 transitions. [2022-01-18 11:15:16,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 11:15:16,612 INFO L276 IsEmpty]: Start isEmpty. Operand 8282 states and 21983 transitions. [2022-01-18 11:15:16,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 11:15:16,621 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 11:15:16,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:16,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable601 [2022-01-18 11:15:16,621 INFO L402 AbstractCegarLoop]: === Iteration 603 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 11:15:16,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 11:15:16,621 INFO L85 PathProgramCache]: Analyzing trace with hash -615865334, now seen corresponding path program 49 times [2022-01-18 11:15:16,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 11:15:16,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718329110] [2022-01-18 11:15:16,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 11:15:16,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 11:15:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 11:15:17,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 11:15:17,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 11:15:17,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718329110] [2022-01-18 11:15:17,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718329110] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 11:15:17,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 11:15:17,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-18 11:15:17,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759995576] [2022-01-18 11:15:17,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 11:15:17,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-18 11:15:17,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 11:15:17,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-18 11:15:17,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-01-18 11:15:17,153 INFO L87 Difference]: Start difference. First operand 8282 states and 21983 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-01-18 11:15:20,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 11:15:20,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1178, Invalid=3652, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 11:15:20,591 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 947 mSDsluCounter, 10234 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 10627 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 11:15:20,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [947 Valid, 10627 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1879 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 11:15:20,592 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 11:15:20,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable602 [2022-01-18 11:15:20,593 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (8282states) and FLOYD_HOARE automaton (currently 43 states, 30 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 70 known predicates. [2022-01-18 11:15:20,594 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-18 11:15:20,595 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 11:15:20,595 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-18 11:15:20,598 INFO L732 BasicCegarLoop]: Path program histogram: [252, 252, 49, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 11:15:20,600 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 11:15:20,600 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 11:15:20,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 11:15:20 BasicIcfg [2022-01-18 11:15:20,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 11:15:20,602 INFO L158 Benchmark]: Toolchain (without parser) took 701153.70ms. Allocated memory was 364.9MB in the beginning and 3.6GB in the end (delta: 3.2GB). Free memory was 311.4MB in the beginning and 1.2GB in the end (delta: -894.6MB). Peak memory consumption was 2.3GB. Max. memory is 16.0GB. [2022-01-18 11:15:20,602 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 364.9MB. Free memory is still 327.5MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 11:15:20,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.94ms. Allocated memory is still 364.9MB. Free memory was 311.1MB in the beginning and 336.8MB in the end (delta: -25.7MB). Peak memory consumption was 15.4MB. Max. memory is 16.0GB. [2022-01-18 11:15:20,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.33ms. Allocated memory is still 364.9MB. Free memory was 336.8MB in the beginning and 335.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:15:20,602 INFO L158 Benchmark]: Boogie Preprocessor took 28.77ms. Allocated memory is still 364.9MB. Free memory was 334.0MB in the beginning and 332.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 11:15:20,602 INFO L158 Benchmark]: RCFGBuilder took 437.54ms. Allocated memory is still 364.9MB. Free memory was 332.9MB in the beginning and 316.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2022-01-18 11:15:20,602 INFO L158 Benchmark]: TraceAbstraction took 700324.24ms. Allocated memory was 364.9MB in the beginning and 3.6GB in the end (delta: 3.2GB). Free memory was 315.1MB in the beginning and 1.2GB in the end (delta: -890.9MB). Peak memory consumption was 2.3GB. Max. memory is 16.0GB. [2022-01-18 11:15:20,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 364.9MB. Free memory is still 327.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 301.94ms. Allocated memory is still 364.9MB. Free memory was 311.1MB in the beginning and 336.8MB in the end (delta: -25.7MB). Peak memory consumption was 15.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 50.33ms. Allocated memory is still 364.9MB. Free memory was 336.8MB in the beginning and 335.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 28.77ms. Allocated memory is still 364.9MB. Free memory was 334.0MB in the beginning and 332.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 437.54ms. Allocated memory is still 364.9MB. Free memory was 332.9MB in the beginning and 316.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 700324.24ms. Allocated memory was 364.9MB in the beginning and 3.6GB in the end (delta: 3.2GB). Free memory was 315.1MB in the beginning and 1.2GB in the end (delta: -890.9MB). Peak memory consumption was 2.3GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (8282states) and FLOYD_HOARE automaton (currently 43 states, 30 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 70 known predicates. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (8282states) and FLOYD_HOARE automaton (currently 43 states, 30 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 70 known predicates. - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (8282states) and FLOYD_HOARE automaton (currently 43 states, 30 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 70 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 300 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 700.2s, OverallIterations: 603, TraceHistogramMax: 1, PathProgramHistogramMax: 252, EmptinessCheckTime: 5.9s, AutomataDifference: 527.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 231154 SdHoareTripleChecker+Valid, 118.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 231154 mSDsluCounter, 2191140 SdHoareTripleChecker+Invalid, 98.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2044487 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 301604 IncrementalHoareTripleChecker+Invalid, 301684 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 189149 mSDtfsCounter, 301604 mSolverCounterSat, 2.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38179 GetRequests, 12370 SyntacticMatches, 0 SemanticMatches, 25808 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278021 ImplicationChecksByTransitivity, 418.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11777occurred in iteration=0, InterpolantAutomatonStates: 21190, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 73.6s AutomataMinimizationTime, 602 MinimizatonAttempts, 1299187 StatesRemovedByMinimization, 598 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 85.9s InterpolantComputationTime, 67523 NumberOfCodeBlocks, 67523 NumberOfCodeBlocksAsserted, 603 NumberOfCheckSat, 66920 ConstructedInterpolants, 0 QuantifiedInterpolants, 334118 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 603 InterpolantComputations, 603 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown