/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 00:47:10,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 00:47:10,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 00:47:10,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 00:47:10,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 00:47:10,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 00:47:10,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 00:47:10,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 00:47:10,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 00:47:10,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 00:47:10,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 00:47:10,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 00:47:10,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 00:47:10,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 00:47:10,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 00:47:10,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 00:47:10,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 00:47:10,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 00:47:10,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 00:47:10,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 00:47:10,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 00:47:10,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 00:47:10,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 00:47:10,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 00:47:10,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-18 00:47:10,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-18 00:47:10,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-18 00:47:10,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-18 00:47:10,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-18 00:47:10,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-18 00:47:10,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 00:47:10,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 00:47:10,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 00:47:10,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 00:47:10,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 00:47:10,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 00:47:10,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 00:47:10,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 00:47:10,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 00:47:10,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 00:47:10,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 00:47:10,300 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.epf [2022-01-18 00:47:10,325 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 00:47:10,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 00:47:10,325 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 00:47:10,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 00:47:10,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 00:47:10,326 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 00:47:10,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 00:47:10,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 00:47:10,326 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 00:47:10,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 00:47:10,327 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 00:47:10,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 00:47:10,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 00:47:10,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 00:47:10,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 00:47:10,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 00:47:10,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 00:47:10,330 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 00:47:10,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 00:47:10,330 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 00:47:10,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 00:47:10,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 00:47:10,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 00:47:10,331 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 00:47:10,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 00:47:10,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 00:47:10,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 00:47:10,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 00:47:10,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 00:47:10,333 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 00:47:10,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 00:47:10,333 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 00:47:10,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 00:47:10,333 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 00:47:10,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 00:47:10,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 00:47:10,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 00:47:10,535 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 00:47:10,536 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 00:47:10,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2022-01-18 00:47:10,604 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ae57cccc/67cc5e6e307c46c7b13c7ee39eddbb03/FLAG18879e813 [2022-01-18 00:47:10,926 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 00:47:10,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2022-01-18 00:47:10,931 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ae57cccc/67cc5e6e307c46c7b13c7ee39eddbb03/FLAG18879e813 [2022-01-18 00:47:11,349 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ae57cccc/67cc5e6e307c46c7b13c7ee39eddbb03 [2022-01-18 00:47:11,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 00:47:11,353 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 00:47:11,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 00:47:11,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 00:47:11,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 00:47:11,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 12:47:11" (1/1) ... [2022-01-18 00:47:11,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d98d515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:47:11, skipping insertion in model container [2022-01-18 00:47:11,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 12:47:11" (1/1) ... [2022-01-18 00:47:11,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 00:47:11,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 00:47:11,554 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-exp-term-symm.wvr.c[2628,2641] [2022-01-18 00:47:11,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 00:47:11,562 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 00:47:11,575 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-exp-term-symm.wvr.c[2628,2641] [2022-01-18 00:47:11,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 00:47:11,584 INFO L208 MainTranslator]: Completed translation [2022-01-18 00:47:11,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:47:11 WrapperNode [2022-01-18 00:47:11,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 00:47:11,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 00:47:11,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 00:47:11,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 00:47:11,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:47:11" (1/1) ... [2022-01-18 00:47:11,594 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:47:11" (1/1) ... [2022-01-18 00:47:11,612 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 128 [2022-01-18 00:47:11,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 00:47:11,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 00:47:11,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 00:47:11,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 00:47:11,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:47:11" (1/1) ... [2022-01-18 00:47:11,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:47:11" (1/1) ... [2022-01-18 00:47:11,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:47:11" (1/1) ... [2022-01-18 00:47:11,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:47:11" (1/1) ... [2022-01-18 00:47:11,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:47:11" (1/1) ... [2022-01-18 00:47:11,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:47:11" (1/1) ... [2022-01-18 00:47:11,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:47:11" (1/1) ... [2022-01-18 00:47:11,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 00:47:11,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 00:47:11,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 00:47:11,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 00:47:11,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:47:11" (1/1) ... [2022-01-18 00:47:11,635 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 00:47:11,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:47:11,651 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 00:47:11,689 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 00:47:11,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 00:47:11,701 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 00:47:11,703 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 00:47:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 00:47:11,704 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 00:47:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 00:47:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 00:47:11,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 00:47:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 00:47:11,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 00:47:11,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 00:47:11,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 00:47:11,710 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 00:47:11,798 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 00:47:11,799 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 00:47:11,988 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 00:47:11,995 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 00:47:11,995 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 00:47:11,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 12:47:11 BoogieIcfgContainer [2022-01-18 00:47:11,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 00:47:11,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 00:47:11,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 00:47:12,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 00:47:12,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 12:47:11" (1/3) ... [2022-01-18 00:47:12,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ebc383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 12:47:12, skipping insertion in model container [2022-01-18 00:47:12,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:47:11" (2/3) ... [2022-01-18 00:47:12,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ebc383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 12:47:12, skipping insertion in model container [2022-01-18 00:47:12,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 12:47:11" (3/3) ... [2022-01-18 00:47:12,003 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2022-01-18 00:47:12,006 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 00:47:12,006 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 00:47:12,006 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 00:47:12,008 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 00:47:12,073 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,073 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,073 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,074 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,075 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,075 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,078 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,079 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,079 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,079 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,079 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,079 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,079 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,080 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,080 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,080 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,080 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,080 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,080 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,080 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,080 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,081 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,081 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,081 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,081 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,081 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,081 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,081 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,084 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,084 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,084 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,084 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,086 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,087 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,087 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,087 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,087 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,087 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,087 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,087 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,088 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,088 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,088 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,088 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,088 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,088 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,088 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,089 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,089 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,089 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,089 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,091 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,091 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,091 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,091 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,091 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,091 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,091 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,092 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,092 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,092 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,092 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,092 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,092 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,093 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,093 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,093 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,093 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,094 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,094 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,095 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,095 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,095 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,095 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,095 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,096 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,096 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,096 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,096 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,096 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,096 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,096 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,096 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,097 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,097 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,097 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,097 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,097 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,097 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,097 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,097 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,097 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,098 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,098 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,098 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,098 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,098 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,098 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,098 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,098 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,099 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,099 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,099 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,104 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,105 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,105 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,108 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,108 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,108 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,108 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,108 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,109 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,109 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,109 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,109 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,109 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,109 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,110 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,110 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,110 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,111 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,112 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,112 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,112 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,112 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,112 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,113 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,115 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,115 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,115 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,116 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,116 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,117 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,118 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,118 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,118 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,118 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,118 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,118 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,118 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,119 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,119 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,119 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,120 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,120 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,120 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,122 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,122 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,123 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,123 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,123 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,124 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,127 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,127 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,127 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,127 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,132 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,133 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,133 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,133 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,133 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,134 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,134 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,134 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,134 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,134 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,134 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,134 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,135 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,139 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,139 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,139 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,139 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,139 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,139 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,140 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,140 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,140 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,141 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,141 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,141 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,141 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:47:12,152 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 00:47:12,197 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 00:47:12,204 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 00:47:12,205 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 00:47:12,214 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 168 places, 174 transitions, 364 flow [2022-01-18 00:47:12,397 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7151 states, 7150 states have (on average 2.8864335664335665) internal successors, (20638), 7150 states have internal predecessors, (20638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:12,416 INFO L276 IsEmpty]: Start isEmpty. Operand has 7151 states, 7150 states have (on average 2.8864335664335665) internal successors, (20638), 7150 states have internal predecessors, (20638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:12,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-18 00:47:12,466 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:12,467 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:12,468 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:12,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:12,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1228508451, now seen corresponding path program 1 times [2022-01-18 00:47:12,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:12,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243227169] [2022-01-18 00:47:12,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:12,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:12,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:12,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:12,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243227169] [2022-01-18 00:47:12,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243227169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:12,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:12,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 00:47:12,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883994665] [2022-01-18 00:47:12,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:12,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 00:47:12,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:12,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 00:47:12,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-18 00:47:12,827 INFO L87 Difference]: Start difference. First operand has 7151 states, 7150 states have (on average 2.8864335664335665) internal successors, (20638), 7150 states have internal predecessors, (20638), 0 states have call successors, (0), 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 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:13,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:13,072 INFO L93 Difference]: Finished difference Result 10047 states and 27493 transitions. [2022-01-18 00:47:13,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 00:47:13,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-01-18 00:47:13,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:13,126 INFO L225 Difference]: With dead ends: 10047 [2022-01-18 00:47:13,126 INFO L226 Difference]: Without dead ends: 8877 [2022-01-18 00:47:13,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-01-18 00:47:13,132 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 418 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:13,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 1259 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:13,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8877 states. [2022-01-18 00:47:13,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8877 to 6601. [2022-01-18 00:47:13,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6601 states, 6600 states have (on average 2.784090909090909) internal successors, (18375), 6600 states have internal predecessors, (18375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:13,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6601 states to 6601 states and 18375 transitions. [2022-01-18 00:47:13,503 INFO L78 Accepts]: Start accepts. Automaton has 6601 states and 18375 transitions. Word has length 85 [2022-01-18 00:47:13,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:13,504 INFO L470 AbstractCegarLoop]: Abstraction has 6601 states and 18375 transitions. [2022-01-18 00:47:13,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:13,505 INFO L276 IsEmpty]: Start isEmpty. Operand 6601 states and 18375 transitions. [2022-01-18 00:47:13,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-18 00:47:13,524 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:13,524 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:13,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 00:47:13,525 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:13,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:13,528 INFO L85 PathProgramCache]: Analyzing trace with hash 170552789, now seen corresponding path program 1 times [2022-01-18 00:47:13,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:13,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400639710] [2022-01-18 00:47:13,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:13,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:13,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:13,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:13,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400639710] [2022-01-18 00:47:13,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400639710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:13,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:13,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 00:47:13,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734434968] [2022-01-18 00:47:13,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:13,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 00:47:13,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:13,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 00:47:13,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 00:47:13,688 INFO L87 Difference]: Start difference. First operand 6601 states and 18375 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:13,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:13,771 INFO L93 Difference]: Finished difference Result 8148 states and 22245 transitions. [2022-01-18 00:47:13,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 00:47:13,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-18 00:47:13,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:13,816 INFO L225 Difference]: With dead ends: 8148 [2022-01-18 00:47:13,816 INFO L226 Difference]: Without dead ends: 8148 [2022-01-18 00:47:13,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 00:47:13,820 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 226 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:13,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 329 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 00:47:13,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8148 states. [2022-01-18 00:47:13,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8148 to 6867. [2022-01-18 00:47:13,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6867 states, 6866 states have (on average 2.7599766967666763) internal successors, (18950), 6866 states have internal predecessors, (18950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:14,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6867 states to 6867 states and 18950 transitions. [2022-01-18 00:47:14,061 INFO L78 Accepts]: Start accepts. Automaton has 6867 states and 18950 transitions. Word has length 87 [2022-01-18 00:47:14,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:14,061 INFO L470 AbstractCegarLoop]: Abstraction has 6867 states and 18950 transitions. [2022-01-18 00:47:14,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:14,062 INFO L276 IsEmpty]: Start isEmpty. Operand 6867 states and 18950 transitions. [2022-01-18 00:47:14,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-18 00:47:14,075 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:14,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:14,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 00:47:14,076 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:14,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:14,076 INFO L85 PathProgramCache]: Analyzing trace with hash -993683521, now seen corresponding path program 1 times [2022-01-18 00:47:14,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:14,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112733482] [2022-01-18 00:47:14,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:14,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:14,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:14,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:14,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112733482] [2022-01-18 00:47:14,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112733482] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:14,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:14,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 00:47:14,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367774241] [2022-01-18 00:47:14,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:14,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 00:47:14,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:14,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 00:47:14,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 00:47:14,258 INFO L87 Difference]: Start difference. First operand 6867 states and 18950 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:14,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:14,343 INFO L93 Difference]: Finished difference Result 9672 states and 26243 transitions. [2022-01-18 00:47:14,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 00:47:14,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-18 00:47:14,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:14,361 INFO L225 Difference]: With dead ends: 9672 [2022-01-18 00:47:14,362 INFO L226 Difference]: Without dead ends: 9672 [2022-01-18 00:47:14,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 00:47:14,367 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 251 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:14,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 379 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 00:47:14,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9672 states. [2022-01-18 00:47:14,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9672 to 6885. [2022-01-18 00:47:14,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6885 states, 6884 states have (on average 2.745496804183614) internal successors, (18900), 6884 states have internal predecessors, (18900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:14,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6885 states to 6885 states and 18900 transitions. [2022-01-18 00:47:14,550 INFO L78 Accepts]: Start accepts. Automaton has 6885 states and 18900 transitions. Word has length 87 [2022-01-18 00:47:14,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:14,552 INFO L470 AbstractCegarLoop]: Abstraction has 6885 states and 18900 transitions. [2022-01-18 00:47:14,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:14,552 INFO L276 IsEmpty]: Start isEmpty. Operand 6885 states and 18900 transitions. [2022-01-18 00:47:14,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-18 00:47:14,565 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:14,565 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] [2022-01-18 00:47:14,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 00:47:14,566 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:14,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:14,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1203068365, now seen corresponding path program 2 times [2022-01-18 00:47:14,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:14,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064643838] [2022-01-18 00:47:14,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:14,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:14,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:14,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:14,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064643838] [2022-01-18 00:47:14,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064643838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:14,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:14,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 00:47:14,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675006933] [2022-01-18 00:47:14,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:14,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 00:47:14,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:14,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 00:47:14,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 00:47:14,631 INFO L87 Difference]: Start difference. First operand 6885 states and 18900 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:14,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:14,702 INFO L93 Difference]: Finished difference Result 7730 states and 20793 transitions. [2022-01-18 00:47:14,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 00:47:14,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-18 00:47:14,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:14,722 INFO L225 Difference]: With dead ends: 7730 [2022-01-18 00:47:14,722 INFO L226 Difference]: Without dead ends: 7730 [2022-01-18 00:47:14,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 00:47:14,727 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 250 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:14,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 303 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 00:47:14,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7730 states. [2022-01-18 00:47:14,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7730 to 7046. [2022-01-18 00:47:14,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7046 states, 7045 states have (on average 2.7144073811213625) internal successors, (19123), 7045 states have internal predecessors, (19123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:14,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7046 states to 7046 states and 19123 transitions. [2022-01-18 00:47:14,920 INFO L78 Accepts]: Start accepts. Automaton has 7046 states and 19123 transitions. Word has length 87 [2022-01-18 00:47:14,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:14,921 INFO L470 AbstractCegarLoop]: Abstraction has 7046 states and 19123 transitions. [2022-01-18 00:47:14,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:14,921 INFO L276 IsEmpty]: Start isEmpty. Operand 7046 states and 19123 transitions. [2022-01-18 00:47:14,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-18 00:47:14,938 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:14,938 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] [2022-01-18 00:47:14,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 00:47:14,938 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:14,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:14,939 INFO L85 PathProgramCache]: Analyzing trace with hash -958876555, now seen corresponding path program 3 times [2022-01-18 00:47:14,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:14,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000827544] [2022-01-18 00:47:14,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:14,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:15,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:15,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:15,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000827544] [2022-01-18 00:47:15,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000827544] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:15,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:15,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 00:47:15,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503568460] [2022-01-18 00:47:15,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:15,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 00:47:15,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:15,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 00:47:15,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 00:47:15,013 INFO L87 Difference]: Start difference. First operand 7046 states and 19123 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:15,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:15,117 INFO L93 Difference]: Finished difference Result 9884 states and 26268 transitions. [2022-01-18 00:47:15,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 00:47:15,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-18 00:47:15,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:15,138 INFO L225 Difference]: With dead ends: 9884 [2022-01-18 00:47:15,139 INFO L226 Difference]: Without dead ends: 9884 [2022-01-18 00:47:15,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 00:47:15,139 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 260 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:15,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 494 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:15,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9884 states. [2022-01-18 00:47:15,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9884 to 7137. [2022-01-18 00:47:15,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7137 states, 7136 states have (on average 2.7058576233183858) internal successors, (19309), 7136 states have internal predecessors, (19309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:15,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7137 states to 7137 states and 19309 transitions. [2022-01-18 00:47:15,329 INFO L78 Accepts]: Start accepts. Automaton has 7137 states and 19309 transitions. Word has length 87 [2022-01-18 00:47:15,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:15,329 INFO L470 AbstractCegarLoop]: Abstraction has 7137 states and 19309 transitions. [2022-01-18 00:47:15,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:15,330 INFO L276 IsEmpty]: Start isEmpty. Operand 7137 states and 19309 transitions. [2022-01-18 00:47:15,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-18 00:47:15,345 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:15,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:15,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 00:47:15,345 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:15,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:15,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1113507785, now seen corresponding path program 2 times [2022-01-18 00:47:15,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:15,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370150295] [2022-01-18 00:47:15,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:15,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:15,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:15,417 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 00:47:15,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:15,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370150295] [2022-01-18 00:47:15,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370150295] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:15,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:15,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 00:47:15,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234953355] [2022-01-18 00:47:15,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:15,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 00:47:15,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:15,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 00:47:15,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 00:47:15,419 INFO L87 Difference]: Start difference. First operand 7137 states and 19309 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:15,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:15,476 INFO L93 Difference]: Finished difference Result 7758 states and 20803 transitions. [2022-01-18 00:47:15,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-18 00:47:15,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-01-18 00:47:15,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:15,490 INFO L225 Difference]: With dead ends: 7758 [2022-01-18 00:47:15,491 INFO L226 Difference]: Without dead ends: 7758 [2022-01-18 00:47:15,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 00:47:15,492 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 286 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:15,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 276 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 00:47:15,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7758 states. [2022-01-18 00:47:15,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7758 to 7082. [2022-01-18 00:47:15,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7082 states, 7081 states have (on average 2.699759920915125) internal successors, (19117), 7081 states have internal predecessors, (19117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:15,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7082 states to 7082 states and 19117 transitions. [2022-01-18 00:47:15,665 INFO L78 Accepts]: Start accepts. Automaton has 7082 states and 19117 transitions. Word has length 87 [2022-01-18 00:47:15,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:15,666 INFO L470 AbstractCegarLoop]: Abstraction has 7082 states and 19117 transitions. [2022-01-18 00:47:15,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:15,666 INFO L276 IsEmpty]: Start isEmpty. Operand 7082 states and 19117 transitions. [2022-01-18 00:47:15,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:15,679 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:15,679 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:15,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 00:47:15,680 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:15,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:15,680 INFO L85 PathProgramCache]: Analyzing trace with hash -121906834, now seen corresponding path program 1 times [2022-01-18 00:47:15,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:15,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549376911] [2022-01-18 00:47:15,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:15,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:15,805 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 00:47:15,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:15,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549376911] [2022-01-18 00:47:15,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549376911] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:15,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:15,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:15,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501387196] [2022-01-18 00:47:15,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:15,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:15,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:15,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:15,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:15,807 INFO L87 Difference]: Start difference. First operand 7082 states and 19117 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:16,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:16,245 INFO L93 Difference]: Finished difference Result 8745 states and 23298 transitions. [2022-01-18 00:47:16,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 00:47:16,245 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:16,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:16,263 INFO L225 Difference]: With dead ends: 8745 [2022-01-18 00:47:16,263 INFO L226 Difference]: Without dead ends: 8398 [2022-01-18 00:47:16,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=283, Invalid=839, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 00:47:16,264 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 412 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:16,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 1534 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:16,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8398 states. [2022-01-18 00:47:16,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8398 to 6955. [2022-01-18 00:47:16,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6955 states, 6954 states have (on average 2.7018981880931836) internal successors, (18789), 6954 states have internal predecessors, (18789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:16,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6955 states to 6955 states and 18789 transitions. [2022-01-18 00:47:16,457 INFO L78 Accepts]: Start accepts. Automaton has 6955 states and 18789 transitions. Word has length 91 [2022-01-18 00:47:16,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:16,458 INFO L470 AbstractCegarLoop]: Abstraction has 6955 states and 18789 transitions. [2022-01-18 00:47:16,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:16,458 INFO L276 IsEmpty]: Start isEmpty. Operand 6955 states and 18789 transitions. [2022-01-18 00:47:16,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:16,472 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:16,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:16,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 00:47:16,473 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:16,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:16,474 INFO L85 PathProgramCache]: Analyzing trace with hash -57199682, now seen corresponding path program 2 times [2022-01-18 00:47:16,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:16,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587109932] [2022-01-18 00:47:16,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:16,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:16,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:16,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:16,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587109932] [2022-01-18 00:47:16,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587109932] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:16,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:16,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:16,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696800304] [2022-01-18 00:47:16,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:16,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:16,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:16,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:16,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:16,602 INFO L87 Difference]: Start difference. First operand 6955 states and 18789 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:17,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:17,168 INFO L93 Difference]: Finished difference Result 8014 states and 21541 transitions. [2022-01-18 00:47:17,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 00:47:17,169 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:17,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:17,184 INFO L225 Difference]: With dead ends: 8014 [2022-01-18 00:47:17,184 INFO L226 Difference]: Without dead ends: 7698 [2022-01-18 00:47:17,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=244, Invalid=812, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 00:47:17,185 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 234 mSDsluCounter, 2075 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 2302 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 00:47:17,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 2302 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:17,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7698 states. [2022-01-18 00:47:17,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7698 to 6959. [2022-01-18 00:47:17,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6959 states, 6958 states have (on average 2.7013509629203796) internal successors, (18796), 6958 states have internal predecessors, (18796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:17,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6959 states to 6959 states and 18796 transitions. [2022-01-18 00:47:17,388 INFO L78 Accepts]: Start accepts. Automaton has 6959 states and 18796 transitions. Word has length 91 [2022-01-18 00:47:17,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:17,389 INFO L470 AbstractCegarLoop]: Abstraction has 6959 states and 18796 transitions. [2022-01-18 00:47:17,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:17,389 INFO L276 IsEmpty]: Start isEmpty. Operand 6959 states and 18796 transitions. [2022-01-18 00:47:17,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:17,399 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:17,400 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] [2022-01-18 00:47:17,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 00:47:17,400 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:17,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:17,400 INFO L85 PathProgramCache]: Analyzing trace with hash 238403154, now seen corresponding path program 3 times [2022-01-18 00:47:17,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:17,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854062359] [2022-01-18 00:47:17,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:17,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:17,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:17,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854062359] [2022-01-18 00:47:17,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854062359] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:17,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:17,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:17,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136004989] [2022-01-18 00:47:17,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:17,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:17,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:17,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:17,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:17,512 INFO L87 Difference]: Start difference. First operand 6959 states and 18796 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:17,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:17,805 INFO L93 Difference]: Finished difference Result 7925 states and 21311 transitions. [2022-01-18 00:47:17,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 00:47:17,806 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:17,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:17,818 INFO L225 Difference]: With dead ends: 7925 [2022-01-18 00:47:17,818 INFO L226 Difference]: Without dead ends: 7640 [2022-01-18 00:47:17,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=183, Invalid=629, Unknown=0, NotChecked=0, Total=812 [2022-01-18 00:47:17,819 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 187 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1973 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:17,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 1973 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:17,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7640 states. [2022-01-18 00:47:17,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7640 to 6963. [2022-01-18 00:47:17,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6963 states, 6962 states have (on average 2.700804366561333) internal successors, (18803), 6962 states have internal predecessors, (18803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:17,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6963 states to 6963 states and 18803 transitions. [2022-01-18 00:47:17,929 INFO L78 Accepts]: Start accepts. Automaton has 6963 states and 18803 transitions. Word has length 91 [2022-01-18 00:47:17,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:17,929 INFO L470 AbstractCegarLoop]: Abstraction has 6963 states and 18803 transitions. [2022-01-18 00:47:17,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:17,929 INFO L276 IsEmpty]: Start isEmpty. Operand 6963 states and 18803 transitions. [2022-01-18 00:47:17,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:17,938 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:17,938 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] [2022-01-18 00:47:17,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 00:47:17,938 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:17,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:17,939 INFO L85 PathProgramCache]: Analyzing trace with hash -179778500, now seen corresponding path program 4 times [2022-01-18 00:47:17,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:17,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610956507] [2022-01-18 00:47:17,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:17,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:18,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:18,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:18,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610956507] [2022-01-18 00:47:18,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610956507] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:18,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:18,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:18,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591370130] [2022-01-18 00:47:18,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:18,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:18,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:18,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:18,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:18,048 INFO L87 Difference]: Start difference. First operand 6963 states and 18803 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:18,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:18,360 INFO L93 Difference]: Finished difference Result 7814 states and 21025 transitions. [2022-01-18 00:47:18,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 00:47:18,360 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:18,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:18,372 INFO L225 Difference]: With dead ends: 7814 [2022-01-18 00:47:18,372 INFO L226 Difference]: Without dead ends: 7563 [2022-01-18 00:47:18,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=436, Unknown=0, NotChecked=0, Total=600 [2022-01-18 00:47:18,374 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 149 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:18,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 1303 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:18,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7563 states. [2022-01-18 00:47:18,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7563 to 6967. [2022-01-18 00:47:18,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6967 states, 6966 states have (on average 2.7002583979328167) internal successors, (18810), 6966 states have internal predecessors, (18810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:18,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6967 states to 6967 states and 18810 transitions. [2022-01-18 00:47:18,494 INFO L78 Accepts]: Start accepts. Automaton has 6967 states and 18810 transitions. Word has length 91 [2022-01-18 00:47:18,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:18,494 INFO L470 AbstractCegarLoop]: Abstraction has 6967 states and 18810 transitions. [2022-01-18 00:47:18,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:18,495 INFO L276 IsEmpty]: Start isEmpty. Operand 6967 states and 18810 transitions. [2022-01-18 00:47:18,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:18,506 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:18,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:18,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 00:47:18,507 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:18,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:18,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1313042934, now seen corresponding path program 5 times [2022-01-18 00:47:18,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:18,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548754563] [2022-01-18 00:47:18,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:18,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:18,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:18,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:18,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548754563] [2022-01-18 00:47:18,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548754563] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:18,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:18,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:18,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340883545] [2022-01-18 00:47:18,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:18,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:18,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:18,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:18,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:18,675 INFO L87 Difference]: Start difference. First operand 6967 states and 18810 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:18,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:18,924 INFO L93 Difference]: Finished difference Result 7785 states and 20943 transitions. [2022-01-18 00:47:18,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 00:47:18,924 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:18,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:18,936 INFO L225 Difference]: With dead ends: 7785 [2022-01-18 00:47:18,936 INFO L226 Difference]: Without dead ends: 7515 [2022-01-18 00:47:18,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-01-18 00:47:18,936 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 149 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1798 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 00:47:18,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 1798 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:18,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7515 states. [2022-01-18 00:47:19,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7515 to 6933. [2022-01-18 00:47:19,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.701817657241777) internal successors, (18729), 6932 states have internal predecessors, (18729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:19,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18729 transitions. [2022-01-18 00:47:19,026 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18729 transitions. Word has length 91 [2022-01-18 00:47:19,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:19,026 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18729 transitions. [2022-01-18 00:47:19,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:19,027 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18729 transitions. [2022-01-18 00:47:19,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:19,035 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:19,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:19,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 00:47:19,036 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:19,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:19,036 INFO L85 PathProgramCache]: Analyzing trace with hash -928662206, now seen corresponding path program 6 times [2022-01-18 00:47:19,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:19,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903884050] [2022-01-18 00:47:19,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:19,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:19,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:19,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:19,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903884050] [2022-01-18 00:47:19,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903884050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:19,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:19,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:19,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707811637] [2022-01-18 00:47:19,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:19,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:19,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:19,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:19,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:19,189 INFO L87 Difference]: Start difference. First operand 6933 states and 18729 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:19,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:19,504 INFO L93 Difference]: Finished difference Result 8034 states and 21592 transitions. [2022-01-18 00:47:19,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 00:47:19,504 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:19,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:19,514 INFO L225 Difference]: With dead ends: 8034 [2022-01-18 00:47:19,514 INFO L226 Difference]: Without dead ends: 7718 [2022-01-18 00:47:19,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2022-01-18 00:47:19,516 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 196 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1611 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:19,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 1611 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:19,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7718 states. [2022-01-18 00:47:19,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7718 to 6941. [2022-01-18 00:47:19,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.7012968299711817) internal successors, (18747), 6940 states have internal predecessors, (18747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:19,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18747 transitions. [2022-01-18 00:47:19,609 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18747 transitions. Word has length 91 [2022-01-18 00:47:19,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:19,610 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18747 transitions. [2022-01-18 00:47:19,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:19,610 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18747 transitions. [2022-01-18 00:47:19,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:19,618 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:19,618 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:19,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 00:47:19,618 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:19,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:19,618 INFO L85 PathProgramCache]: Analyzing trace with hash -633059370, now seen corresponding path program 7 times [2022-01-18 00:47:19,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:19,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786708142] [2022-01-18 00:47:19,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:19,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:19,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:19,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:19,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786708142] [2022-01-18 00:47:19,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786708142] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:19,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:19,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:19,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803070132] [2022-01-18 00:47:19,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:19,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:19,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:19,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:19,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:19,737 INFO L87 Difference]: Start difference. First operand 6941 states and 18747 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:20,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:20,021 INFO L93 Difference]: Finished difference Result 7997 states and 21505 transitions. [2022-01-18 00:47:20,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 00:47:20,022 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:20,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:20,034 INFO L225 Difference]: With dead ends: 7997 [2022-01-18 00:47:20,034 INFO L226 Difference]: Without dead ends: 7712 [2022-01-18 00:47:20,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:47:20,035 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 160 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:20,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 1950 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:20,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7712 states. [2022-01-18 00:47:20,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7712 to 6945. [2022-01-18 00:47:20,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 6944 states have (on average 2.7007488479262673) internal successors, (18754), 6944 states have internal predecessors, (18754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:20,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 18754 transitions. [2022-01-18 00:47:20,207 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 18754 transitions. Word has length 91 [2022-01-18 00:47:20,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:20,207 INFO L470 AbstractCegarLoop]: Abstraction has 6945 states and 18754 transitions. [2022-01-18 00:47:20,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:20,207 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 18754 transitions. [2022-01-18 00:47:20,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:20,218 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:20,218 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] [2022-01-18 00:47:20,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 00:47:20,218 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:20,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:20,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1051241024, now seen corresponding path program 8 times [2022-01-18 00:47:20,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:20,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192495143] [2022-01-18 00:47:20,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:20,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:20,330 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 00:47:20,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:20,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192495143] [2022-01-18 00:47:20,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192495143] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:20,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:20,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:20,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404153151] [2022-01-18 00:47:20,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:20,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:20,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:20,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:20,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:20,332 INFO L87 Difference]: Start difference. First operand 6945 states and 18754 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:20,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:20,598 INFO L93 Difference]: Finished difference Result 7894 states and 21241 transitions. [2022-01-18 00:47:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 00:47:20,598 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:20,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:20,610 INFO L225 Difference]: With dead ends: 7894 [2022-01-18 00:47:20,610 INFO L226 Difference]: Without dead ends: 7643 [2022-01-18 00:47:20,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2022-01-18 00:47:20,611 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 118 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1523 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 00:47:20,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 1523 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:20,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7643 states. [2022-01-18 00:47:20,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7643 to 6949. [2022-01-18 00:47:20,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6949 states, 6948 states have (on average 2.700201496833621) internal successors, (18761), 6948 states have internal predecessors, (18761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:20,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6949 states to 6949 states and 18761 transitions. [2022-01-18 00:47:20,741 INFO L78 Accepts]: Start accepts. Automaton has 6949 states and 18761 transitions. Word has length 91 [2022-01-18 00:47:20,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:20,741 INFO L470 AbstractCegarLoop]: Abstraction has 6949 states and 18761 transitions. [2022-01-18 00:47:20,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:20,741 INFO L276 IsEmpty]: Start isEmpty. Operand 6949 states and 18761 transitions. [2022-01-18 00:47:20,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:20,752 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:20,752 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] [2022-01-18 00:47:20,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 00:47:20,752 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:20,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:20,753 INFO L85 PathProgramCache]: Analyzing trace with hash 441580410, now seen corresponding path program 9 times [2022-01-18 00:47:20,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:20,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382020452] [2022-01-18 00:47:20,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:20,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:20,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:20,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:20,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:20,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382020452] [2022-01-18 00:47:20,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382020452] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:20,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:20,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:20,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536846525] [2022-01-18 00:47:20,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:20,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:20,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:20,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:20,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:20,864 INFO L87 Difference]: Start difference. First operand 6949 states and 18761 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:21,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:21,100 INFO L93 Difference]: Finished difference Result 7865 states and 21159 transitions. [2022-01-18 00:47:21,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 00:47:21,100 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:21,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:21,111 INFO L225 Difference]: With dead ends: 7865 [2022-01-18 00:47:21,111 INFO L226 Difference]: Without dead ends: 7599 [2022-01-18 00:47:21,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2022-01-18 00:47:21,112 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 114 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:21,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 1699 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:21,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7599 states. [2022-01-18 00:47:21,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7599 to 6937. [2022-01-18 00:47:21,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.701268742791234) internal successors, (18736), 6936 states have internal predecessors, (18736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:21,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18736 transitions. [2022-01-18 00:47:21,233 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18736 transitions. Word has length 91 [2022-01-18 00:47:21,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:21,234 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18736 transitions. [2022-01-18 00:47:21,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:21,234 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18736 transitions. [2022-01-18 00:47:21,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:21,243 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:21,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:21,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 00:47:21,244 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:21,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:21,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1338573798, now seen corresponding path program 10 times [2022-01-18 00:47:21,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:21,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519834152] [2022-01-18 00:47:21,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:21,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:21,354 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 00:47:21,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:21,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519834152] [2022-01-18 00:47:21,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519834152] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:21,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:21,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:21,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566153358] [2022-01-18 00:47:21,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:21,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:21,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:21,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:21,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:21,356 INFO L87 Difference]: Start difference. First operand 6937 states and 18736 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:21,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:21,635 INFO L93 Difference]: Finished difference Result 7914 states and 21288 transitions. [2022-01-18 00:47:21,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 00:47:21,636 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:21,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:21,646 INFO L225 Difference]: With dead ends: 7914 [2022-01-18 00:47:21,646 INFO L226 Difference]: Without dead ends: 7635 [2022-01-18 00:47:21,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=599, Unknown=0, NotChecked=0, Total=812 [2022-01-18 00:47:21,647 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 164 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:21,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 1091 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:21,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7635 states. [2022-01-18 00:47:21,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7635 to 6945. [2022-01-18 00:47:21,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 6944 states have (on average 2.7007488479262673) internal successors, (18754), 6944 states have internal predecessors, (18754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:21,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 18754 transitions. [2022-01-18 00:47:21,758 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 18754 transitions. Word has length 91 [2022-01-18 00:47:21,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:21,759 INFO L470 AbstractCegarLoop]: Abstraction has 6945 states and 18754 transitions. [2022-01-18 00:47:21,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:21,759 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 18754 transitions. [2022-01-18 00:47:21,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:21,768 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:21,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:21,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 00:47:21,768 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:21,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:21,768 INFO L85 PathProgramCache]: Analyzing trace with hash -94611704, now seen corresponding path program 11 times [2022-01-18 00:47:21,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:21,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712658375] [2022-01-18 00:47:21,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:21,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:21,875 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 00:47:21,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:21,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712658375] [2022-01-18 00:47:21,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712658375] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:21,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:21,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:21,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43124701] [2022-01-18 00:47:21,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:21,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:21,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:21,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:21,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:21,877 INFO L87 Difference]: Start difference. First operand 6945 states and 18754 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:22,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:22,196 INFO L93 Difference]: Finished difference Result 7874 states and 21186 transitions. [2022-01-18 00:47:22,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 00:47:22,196 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:22,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:22,207 INFO L225 Difference]: With dead ends: 7874 [2022-01-18 00:47:22,208 INFO L226 Difference]: Without dead ends: 7623 [2022-01-18 00:47:22,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2022-01-18 00:47:22,209 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 127 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1637 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 00:47:22,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 1637 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:22,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7623 states. [2022-01-18 00:47:22,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7623 to 6949. [2022-01-18 00:47:22,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6949 states, 6948 states have (on average 2.700201496833621) internal successors, (18761), 6948 states have internal predecessors, (18761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:22,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6949 states to 6949 states and 18761 transitions. [2022-01-18 00:47:22,327 INFO L78 Accepts]: Start accepts. Automaton has 6949 states and 18761 transitions. Word has length 91 [2022-01-18 00:47:22,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:22,327 INFO L470 AbstractCegarLoop]: Abstraction has 6949 states and 18761 transitions. [2022-01-18 00:47:22,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:22,330 INFO L276 IsEmpty]: Start isEmpty. Operand 6949 states and 18761 transitions. [2022-01-18 00:47:22,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:22,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:22,341 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] [2022-01-18 00:47:22,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 00:47:22,341 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:22,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:22,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1398209730, now seen corresponding path program 12 times [2022-01-18 00:47:22,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:22,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610438248] [2022-01-18 00:47:22,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:22,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:22,439 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 00:47:22,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:22,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610438248] [2022-01-18 00:47:22,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610438248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:22,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:22,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:22,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539933328] [2022-01-18 00:47:22,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:22,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:22,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:22,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:22,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:22,441 INFO L87 Difference]: Start difference. First operand 6949 states and 18761 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:22,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:22,665 INFO L93 Difference]: Finished difference Result 7845 states and 21104 transitions. [2022-01-18 00:47:22,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 00:47:22,665 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:22,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:22,676 INFO L225 Difference]: With dead ends: 7845 [2022-01-18 00:47:22,676 INFO L226 Difference]: Without dead ends: 7583 [2022-01-18 00:47:22,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-01-18 00:47:22,677 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 115 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1643 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 00:47:22,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 1643 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:22,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7583 states. [2022-01-18 00:47:22,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7583 to 6941. [2022-01-18 00:47:22,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.7007204610951008) internal successors, (18743), 6940 states have internal predecessors, (18743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:22,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18743 transitions. [2022-01-18 00:47:22,806 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18743 transitions. Word has length 91 [2022-01-18 00:47:22,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:22,808 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18743 transitions. [2022-01-18 00:47:22,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:22,809 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18743 transitions. [2022-01-18 00:47:22,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:22,820 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:22,820 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] [2022-01-18 00:47:22,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 00:47:22,820 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:22,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:22,820 INFO L85 PathProgramCache]: Analyzing trace with hash 405891160, now seen corresponding path program 13 times [2022-01-18 00:47:22,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:22,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937888822] [2022-01-18 00:47:22,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:22,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:22,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:22,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:22,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937888822] [2022-01-18 00:47:22,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937888822] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:22,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:22,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:22,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485354754] [2022-01-18 00:47:22,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:22,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:22,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:22,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:22,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:22,929 INFO L87 Difference]: Start difference. First operand 6941 states and 18743 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:23,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:23,221 INFO L93 Difference]: Finished difference Result 7929 states and 21314 transitions. [2022-01-18 00:47:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 00:47:23,221 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:23,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:23,234 INFO L225 Difference]: With dead ends: 7929 [2022-01-18 00:47:23,234 INFO L226 Difference]: Without dead ends: 7644 [2022-01-18 00:47:23,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2022-01-18 00:47:23,235 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 164 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:23,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 1627 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:23,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7644 states. [2022-01-18 00:47:23,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7644 to 6945. [2022-01-18 00:47:23,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 6944 states have (on average 2.700172811059908) internal successors, (18750), 6944 states have internal predecessors, (18750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:23,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 18750 transitions. [2022-01-18 00:47:23,360 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 18750 transitions. Word has length 91 [2022-01-18 00:47:23,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:23,361 INFO L470 AbstractCegarLoop]: Abstraction has 6945 states and 18750 transitions. [2022-01-18 00:47:23,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:23,361 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 18750 transitions. [2022-01-18 00:47:23,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:23,370 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:23,370 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] [2022-01-18 00:47:23,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 00:47:23,371 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:23,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:23,372 INFO L85 PathProgramCache]: Analyzing trace with hash -12290494, now seen corresponding path program 14 times [2022-01-18 00:47:23,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:23,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621115] [2022-01-18 00:47:23,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:23,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:23,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:23,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:23,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621115] [2022-01-18 00:47:23,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621115] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:23,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:23,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:23,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098652963] [2022-01-18 00:47:23,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:23,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:23,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:23,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:23,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:23,496 INFO L87 Difference]: Start difference. First operand 6945 states and 18750 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:23,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:23,774 INFO L93 Difference]: Finished difference Result 7830 states and 21061 transitions. [2022-01-18 00:47:23,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 00:47:23,774 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:23,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:23,785 INFO L225 Difference]: With dead ends: 7830 [2022-01-18 00:47:23,785 INFO L226 Difference]: Without dead ends: 7579 [2022-01-18 00:47:23,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2022-01-18 00:47:23,787 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 128 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:23,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1768 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:23,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7579 states. [2022-01-18 00:47:23,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7579 to 6949. [2022-01-18 00:47:23,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6949 states, 6948 states have (on average 2.6996257915947037) internal successors, (18757), 6948 states have internal predecessors, (18757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:23,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6949 states to 6949 states and 18757 transitions. [2022-01-18 00:47:23,900 INFO L78 Accepts]: Start accepts. Automaton has 6949 states and 18757 transitions. Word has length 91 [2022-01-18 00:47:23,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:23,901 INFO L470 AbstractCegarLoop]: Abstraction has 6949 states and 18757 transitions. [2022-01-18 00:47:23,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:23,910 INFO L276 IsEmpty]: Start isEmpty. Operand 6949 states and 18757 transitions. [2022-01-18 00:47:23,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:23,934 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:23,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:23,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 00:47:23,935 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:23,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:23,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1480530940, now seen corresponding path program 15 times [2022-01-18 00:47:23,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:23,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155416589] [2022-01-18 00:47:23,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:23,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:24,080 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 00:47:24,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:24,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155416589] [2022-01-18 00:47:24,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155416589] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:24,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:24,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:24,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453111757] [2022-01-18 00:47:24,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:24,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:24,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:24,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:24,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:24,084 INFO L87 Difference]: Start difference. First operand 6949 states and 18757 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:24,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:24,337 INFO L93 Difference]: Finished difference Result 7785 states and 20935 transitions. [2022-01-18 00:47:24,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 00:47:24,337 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:24,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:24,349 INFO L225 Difference]: With dead ends: 7785 [2022-01-18 00:47:24,349 INFO L226 Difference]: Without dead ends: 7511 [2022-01-18 00:47:24,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-01-18 00:47:24,350 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 123 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:24,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1677 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:24,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7511 states. [2022-01-18 00:47:24,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7511 to 6921. [2022-01-18 00:47:24,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6921 states, 6920 states have (on average 2.7011560693641616) internal successors, (18692), 6920 states have internal predecessors, (18692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:24,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6921 states to 6921 states and 18692 transitions. [2022-01-18 00:47:24,469 INFO L78 Accepts]: Start accepts. Automaton has 6921 states and 18692 transitions. Word has length 91 [2022-01-18 00:47:24,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:24,469 INFO L470 AbstractCegarLoop]: Abstraction has 6921 states and 18692 transitions. [2022-01-18 00:47:24,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:24,469 INFO L276 IsEmpty]: Start isEmpty. Operand 6921 states and 18692 transitions. [2022-01-18 00:47:24,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:24,481 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:24,482 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] [2022-01-18 00:47:24,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 00:47:24,482 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:24,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:24,482 INFO L85 PathProgramCache]: Analyzing trace with hash 899547442, now seen corresponding path program 16 times [2022-01-18 00:47:24,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:24,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911980706] [2022-01-18 00:47:24,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:24,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:24,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:24,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:24,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911980706] [2022-01-18 00:47:24,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911980706] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:24,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:24,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:24,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235430196] [2022-01-18 00:47:24,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:24,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:24,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:24,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:24,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:24,639 INFO L87 Difference]: Start difference. First operand 6921 states and 18692 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:25,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:25,029 INFO L93 Difference]: Finished difference Result 8298 states and 22306 transitions. [2022-01-18 00:47:25,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 00:47:25,029 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:25,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:25,042 INFO L225 Difference]: With dead ends: 8298 [2022-01-18 00:47:25,042 INFO L226 Difference]: Without dead ends: 7982 [2022-01-18 00:47:25,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2022-01-18 00:47:25,044 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 198 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1451 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 00:47:25,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 1451 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:25,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7982 states. [2022-01-18 00:47:25,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7982 to 6933. [2022-01-18 00:47:25,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.70066358915176) internal successors, (18721), 6932 states have internal predecessors, (18721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:25,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18721 transitions. [2022-01-18 00:47:25,162 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18721 transitions. Word has length 91 [2022-01-18 00:47:25,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:25,162 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18721 transitions. [2022-01-18 00:47:25,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:25,162 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18721 transitions. [2022-01-18 00:47:25,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:25,176 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:25,176 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] [2022-01-18 00:47:25,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 00:47:25,177 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:25,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:25,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1195150278, now seen corresponding path program 17 times [2022-01-18 00:47:25,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:25,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731501549] [2022-01-18 00:47:25,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:25,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:25,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:25,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:25,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731501549] [2022-01-18 00:47:25,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731501549] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:25,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:25,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:25,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063770269] [2022-01-18 00:47:25,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:25,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:25,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:25,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:25,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:25,302 INFO L87 Difference]: Start difference. First operand 6933 states and 18721 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:25,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:25,688 INFO L93 Difference]: Finished difference Result 8261 states and 22219 transitions. [2022-01-18 00:47:25,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 00:47:25,689 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:25,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:25,700 INFO L225 Difference]: With dead ends: 8261 [2022-01-18 00:47:25,700 INFO L226 Difference]: Without dead ends: 7976 [2022-01-18 00:47:25,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=197, Invalid=615, Unknown=0, NotChecked=0, Total=812 [2022-01-18 00:47:25,704 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 176 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:25,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 1693 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:25,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7976 states. [2022-01-18 00:47:25,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7976 to 6937. [2022-01-18 00:47:25,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.7001153402537486) internal successors, (18728), 6936 states have internal predecessors, (18728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:25,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18728 transitions. [2022-01-18 00:47:25,810 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18728 transitions. Word has length 91 [2022-01-18 00:47:25,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:25,810 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18728 transitions. [2022-01-18 00:47:25,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:25,811 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18728 transitions. [2022-01-18 00:47:25,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:25,819 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:25,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:25,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 00:47:25,820 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:25,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:25,820 INFO L85 PathProgramCache]: Analyzing trace with hash 776968624, now seen corresponding path program 18 times [2022-01-18 00:47:25,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:25,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523655486] [2022-01-18 00:47:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:25,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:25,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:25,916 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 00:47:25,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:25,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523655486] [2022-01-18 00:47:25,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523655486] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:25,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:25,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:25,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178957647] [2022-01-18 00:47:25,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:25,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:25,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:25,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:25,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:25,919 INFO L87 Difference]: Start difference. First operand 6937 states and 18728 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:26,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:26,171 INFO L93 Difference]: Finished difference Result 8158 states and 21955 transitions. [2022-01-18 00:47:26,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 00:47:26,171 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:26,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:26,183 INFO L225 Difference]: With dead ends: 8158 [2022-01-18 00:47:26,183 INFO L226 Difference]: Without dead ends: 7907 [2022-01-18 00:47:26,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-01-18 00:47:26,185 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 129 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:26,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 1735 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:26,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7907 states. [2022-01-18 00:47:26,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7907 to 6941. [2022-01-18 00:47:26,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.6995677233429394) internal successors, (18735), 6940 states have internal predecessors, (18735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:26,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18735 transitions. [2022-01-18 00:47:26,283 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18735 transitions. Word has length 91 [2022-01-18 00:47:26,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:26,283 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18735 transitions. [2022-01-18 00:47:26,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:26,284 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18735 transitions. [2022-01-18 00:47:26,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:26,293 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:26,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:26,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 00:47:26,293 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:26,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:26,294 INFO L85 PathProgramCache]: Analyzing trace with hash -2025177238, now seen corresponding path program 19 times [2022-01-18 00:47:26,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:26,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862114161] [2022-01-18 00:47:26,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:26,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:26,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:26,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:26,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862114161] [2022-01-18 00:47:26,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862114161] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:26,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:26,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:26,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302128791] [2022-01-18 00:47:26,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:26,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:26,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:26,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:26,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:26,415 INFO L87 Difference]: Start difference. First operand 6941 states and 18735 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:26,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:26,670 INFO L93 Difference]: Finished difference Result 8129 states and 21873 transitions. [2022-01-18 00:47:26,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 00:47:26,670 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:26,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:26,681 INFO L225 Difference]: With dead ends: 8129 [2022-01-18 00:47:26,681 INFO L226 Difference]: Without dead ends: 7863 [2022-01-18 00:47:26,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2022-01-18 00:47:26,682 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 128 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:26,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1552 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:26,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7863 states. [2022-01-18 00:47:26,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7863 to 6929. [2022-01-18 00:47:26,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 2.700635103926097) internal successors, (18710), 6928 states have internal predecessors, (18710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:26,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 18710 transitions. [2022-01-18 00:47:26,804 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 18710 transitions. Word has length 91 [2022-01-18 00:47:26,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:26,805 INFO L470 AbstractCegarLoop]: Abstraction has 6929 states and 18710 transitions. [2022-01-18 00:47:26,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:26,805 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 18710 transitions. [2022-01-18 00:47:26,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:26,814 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:26,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:26,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 00:47:26,814 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:26,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:26,815 INFO L85 PathProgramCache]: Analyzing trace with hash 489635850, now seen corresponding path program 20 times [2022-01-18 00:47:26,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:26,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965655715] [2022-01-18 00:47:26,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:26,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:26,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:26,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:26,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965655715] [2022-01-18 00:47:26,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965655715] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:26,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:26,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:26,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919624379] [2022-01-18 00:47:26,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:26,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:26,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:26,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:26,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:26,937 INFO L87 Difference]: Start difference. First operand 6929 states and 18710 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:27,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:27,232 INFO L93 Difference]: Finished difference Result 8258 states and 22222 transitions. [2022-01-18 00:47:27,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 00:47:27,232 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:27,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:27,241 INFO L225 Difference]: With dead ends: 8258 [2022-01-18 00:47:27,242 INFO L226 Difference]: Without dead ends: 7979 [2022-01-18 00:47:27,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=217, Invalid=653, Unknown=0, NotChecked=0, Total=870 [2022-01-18 00:47:27,242 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 179 mSDsluCounter, 1495 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:27,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 1695 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:27,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7979 states. [2022-01-18 00:47:27,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7979 to 6937. [2022-01-18 00:47:27,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.7001153402537486) internal successors, (18728), 6936 states have internal predecessors, (18728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:27,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18728 transitions. [2022-01-18 00:47:27,322 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18728 transitions. Word has length 91 [2022-01-18 00:47:27,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:27,323 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18728 transitions. [2022-01-18 00:47:27,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:27,323 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18728 transitions. [2022-01-18 00:47:27,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:27,331 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:27,331 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] [2022-01-18 00:47:27,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 00:47:27,331 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:27,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:27,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1733597944, now seen corresponding path program 21 times [2022-01-18 00:47:27,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:27,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305396820] [2022-01-18 00:47:27,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:27,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:27,485 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 00:47:27,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:27,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305396820] [2022-01-18 00:47:27,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305396820] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:27,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:27,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:27,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565730874] [2022-01-18 00:47:27,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:27,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:27,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:27,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:27,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:27,487 INFO L87 Difference]: Start difference. First operand 6937 states and 18728 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:27,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:27,713 INFO L93 Difference]: Finished difference Result 8206 states and 22087 transitions. [2022-01-18 00:47:27,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 00:47:27,713 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:27,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:27,725 INFO L225 Difference]: With dead ends: 8206 [2022-01-18 00:47:27,726 INFO L226 Difference]: Without dead ends: 7955 [2022-01-18 00:47:27,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2022-01-18 00:47:27,726 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 147 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:27,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 1523 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:27,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7955 states. [2022-01-18 00:47:27,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7955 to 6941. [2022-01-18 00:47:27,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.6995677233429394) internal successors, (18735), 6940 states have internal predecessors, (18735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:27,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18735 transitions. [2022-01-18 00:47:27,830 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18735 transitions. Word has length 91 [2022-01-18 00:47:27,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:27,830 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18735 transitions. [2022-01-18 00:47:27,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:27,831 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18735 transitions. [2022-01-18 00:47:27,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:27,839 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:27,839 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] [2022-01-18 00:47:27,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 00:47:27,839 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:27,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:27,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1068547918, now seen corresponding path program 22 times [2022-01-18 00:47:27,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:27,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490723651] [2022-01-18 00:47:27,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:27,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:27,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:27,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:27,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490723651] [2022-01-18 00:47:27,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490723651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:27,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:27,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:27,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474191509] [2022-01-18 00:47:27,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:27,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:27,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:27,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:27,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:27,928 INFO L87 Difference]: Start difference. First operand 6941 states and 18735 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:28,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:28,100 INFO L93 Difference]: Finished difference Result 8177 states and 22005 transitions. [2022-01-18 00:47:28,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 00:47:28,115 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:28,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:28,126 INFO L225 Difference]: With dead ends: 8177 [2022-01-18 00:47:28,126 INFO L226 Difference]: Without dead ends: 7915 [2022-01-18 00:47:28,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-01-18 00:47:28,140 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 136 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1941 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 00:47:28,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 1941 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:28,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7915 states. [2022-01-18 00:47:28,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7915 to 6933. [2022-01-18 00:47:28,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.7000865551067514) internal successors, (18717), 6932 states have internal predecessors, (18717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:28,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18717 transitions. [2022-01-18 00:47:28,274 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18717 transitions. Word has length 91 [2022-01-18 00:47:28,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:28,274 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18717 transitions. [2022-01-18 00:47:28,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:28,274 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18717 transitions. [2022-01-18 00:47:28,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:28,282 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:28,283 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] [2022-01-18 00:47:28,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 00:47:28,284 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:28,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:28,284 INFO L85 PathProgramCache]: Analyzing trace with hash -2060866488, now seen corresponding path program 23 times [2022-01-18 00:47:28,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:28,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017943282] [2022-01-18 00:47:28,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:28,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:28,405 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 00:47:28,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:28,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017943282] [2022-01-18 00:47:28,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017943282] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:28,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:28,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:28,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031746699] [2022-01-18 00:47:28,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:28,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:28,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:28,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:28,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:28,407 INFO L87 Difference]: Start difference. First operand 6933 states and 18717 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:28,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:28,703 INFO L93 Difference]: Finished difference Result 8261 states and 22215 transitions. [2022-01-18 00:47:28,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 00:47:28,704 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:28,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:28,718 INFO L225 Difference]: With dead ends: 8261 [2022-01-18 00:47:28,719 INFO L226 Difference]: Without dead ends: 7976 [2022-01-18 00:47:28,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=193, Invalid=563, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:47:28,720 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 179 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:28,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 1748 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:28,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7976 states. [2022-01-18 00:47:28,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7976 to 6937. [2022-01-18 00:47:28,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.699538638985006) internal successors, (18724), 6936 states have internal predecessors, (18724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:28,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18724 transitions. [2022-01-18 00:47:28,823 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18724 transitions. Word has length 91 [2022-01-18 00:47:28,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:28,823 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18724 transitions. [2022-01-18 00:47:28,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:28,824 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18724 transitions. [2022-01-18 00:47:28,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:28,832 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:28,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:28,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 00:47:28,832 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:28,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:28,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1815919154, now seen corresponding path program 24 times [2022-01-18 00:47:28,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:28,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669015486] [2022-01-18 00:47:28,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:28,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:28,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:28,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:28,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669015486] [2022-01-18 00:47:28,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669015486] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:28,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:28,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:28,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167807211] [2022-01-18 00:47:28,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:28,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:28,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:28,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:28,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:28,949 INFO L87 Difference]: Start difference. First operand 6937 states and 18724 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:29,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:29,191 INFO L93 Difference]: Finished difference Result 8170 states and 21984 transitions. [2022-01-18 00:47:29,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 00:47:29,191 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:29,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:29,204 INFO L225 Difference]: With dead ends: 8170 [2022-01-18 00:47:29,204 INFO L226 Difference]: Without dead ends: 7919 [2022-01-18 00:47:29,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2022-01-18 00:47:29,205 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 140 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:29,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 1529 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:29,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7919 states. [2022-01-18 00:47:29,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7919 to 6941. [2022-01-18 00:47:29,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.698991354466859) internal successors, (18731), 6940 states have internal predecessors, (18731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:29,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18731 transitions. [2022-01-18 00:47:29,312 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18731 transitions. Word has length 91 [2022-01-18 00:47:29,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:29,312 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18731 transitions. [2022-01-18 00:47:29,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:29,313 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18731 transitions. [2022-01-18 00:47:29,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:29,321 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:29,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:29,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 00:47:29,321 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:29,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:29,322 INFO L85 PathProgramCache]: Analyzing trace with hash -986226708, now seen corresponding path program 25 times [2022-01-18 00:47:29,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:29,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855282237] [2022-01-18 00:47:29,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:29,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:29,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:29,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:29,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855282237] [2022-01-18 00:47:29,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855282237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:29,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:29,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:29,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772571579] [2022-01-18 00:47:29,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:29,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:29,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:29,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:29,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:29,436 INFO L87 Difference]: Start difference. First operand 6941 states and 18731 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:29,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:29,684 INFO L93 Difference]: Finished difference Result 8129 states and 21869 transitions. [2022-01-18 00:47:29,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 00:47:29,684 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:29,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:29,695 INFO L225 Difference]: With dead ends: 8129 [2022-01-18 00:47:29,695 INFO L226 Difference]: Without dead ends: 7859 [2022-01-18 00:47:29,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2022-01-18 00:47:29,696 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 133 mSDsluCounter, 1889 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:29,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 2073 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:29,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7859 states. [2022-01-18 00:47:29,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7859 to 6925. [2022-01-18 00:47:29,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6925 states, 6924 states have (on average 2.7006065857885617) internal successors, (18699), 6924 states have internal predecessors, (18699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:29,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6925 states to 6925 states and 18699 transitions. [2022-01-18 00:47:29,776 INFO L78 Accepts]: Start accepts. Automaton has 6925 states and 18699 transitions. Word has length 91 [2022-01-18 00:47:29,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:29,777 INFO L470 AbstractCegarLoop]: Abstraction has 6925 states and 18699 transitions. [2022-01-18 00:47:29,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:29,777 INFO L276 IsEmpty]: Start isEmpty. Operand 6925 states and 18699 transitions. [2022-01-18 00:47:29,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:29,784 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:29,784 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] [2022-01-18 00:47:29,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 00:47:29,784 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:29,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:29,785 INFO L85 PathProgramCache]: Analyzing trace with hash -2013636544, now seen corresponding path program 26 times [2022-01-18 00:47:29,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:29,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550581820] [2022-01-18 00:47:29,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:29,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:29,867 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 00:47:29,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:29,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550581820] [2022-01-18 00:47:29,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550581820] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:29,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:29,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:29,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149087187] [2022-01-18 00:47:29,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:29,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:29,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:29,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:29,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:29,868 INFO L87 Difference]: Start difference. First operand 6925 states and 18699 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:30,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:30,126 INFO L93 Difference]: Finished difference Result 8222 states and 22123 transitions. [2022-01-18 00:47:30,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 00:47:30,127 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:30,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:30,138 INFO L225 Difference]: With dead ends: 8222 [2022-01-18 00:47:30,138 INFO L226 Difference]: Without dead ends: 7943 [2022-01-18 00:47:30,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=238, Invalid=754, Unknown=0, NotChecked=0, Total=992 [2022-01-18 00:47:30,141 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 242 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2120 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:30,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 2120 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:30,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7943 states. [2022-01-18 00:47:30,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7943 to 6937. [2022-01-18 00:47:30,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.7001153402537486) internal successors, (18728), 6936 states have internal predecessors, (18728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:30,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18728 transitions. [2022-01-18 00:47:30,255 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18728 transitions. Word has length 91 [2022-01-18 00:47:30,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:30,255 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18728 transitions. [2022-01-18 00:47:30,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:30,256 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18728 transitions. [2022-01-18 00:47:30,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:30,266 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:30,266 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] [2022-01-18 00:47:30,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 00:47:30,266 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:30,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:30,266 INFO L85 PathProgramCache]: Analyzing trace with hash -769674450, now seen corresponding path program 27 times [2022-01-18 00:47:30,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:30,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659598131] [2022-01-18 00:47:30,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:30,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:30,380 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 00:47:30,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:30,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659598131] [2022-01-18 00:47:30,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659598131] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:30,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:30,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:30,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561138845] [2022-01-18 00:47:30,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:30,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:30,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:30,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:30,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:30,382 INFO L87 Difference]: Start difference. First operand 6937 states and 18728 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:30,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:30,602 INFO L93 Difference]: Finished difference Result 8158 states and 21955 transitions. [2022-01-18 00:47:30,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 00:47:30,603 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:30,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:30,613 INFO L225 Difference]: With dead ends: 8158 [2022-01-18 00:47:30,613 INFO L226 Difference]: Without dead ends: 7907 [2022-01-18 00:47:30,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2022-01-18 00:47:30,614 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 198 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1641 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 00:47:30,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 1641 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:30,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7907 states. [2022-01-18 00:47:30,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7907 to 6941. [2022-01-18 00:47:30,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.6995677233429394) internal successors, (18735), 6940 states have internal predecessors, (18735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:30,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18735 transitions. [2022-01-18 00:47:30,702 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18735 transitions. Word has length 91 [2022-01-18 00:47:30,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:30,702 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18735 transitions. [2022-01-18 00:47:30,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:30,702 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18735 transitions. [2022-01-18 00:47:30,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:30,710 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:30,710 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] [2022-01-18 00:47:30,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 00:47:30,710 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:30,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:30,710 INFO L85 PathProgramCache]: Analyzing trace with hash 723146984, now seen corresponding path program 28 times [2022-01-18 00:47:30,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:30,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258109501] [2022-01-18 00:47:30,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:30,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:30,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:30,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:30,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258109501] [2022-01-18 00:47:30,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258109501] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:30,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:30,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:30,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709120344] [2022-01-18 00:47:30,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:30,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:30,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:30,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:30,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:30,812 INFO L87 Difference]: Start difference. First operand 6941 states and 18735 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:31,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:31,066 INFO L93 Difference]: Finished difference Result 8129 states and 21873 transitions. [2022-01-18 00:47:31,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 00:47:31,082 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:31,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:31,095 INFO L225 Difference]: With dead ends: 8129 [2022-01-18 00:47:31,095 INFO L226 Difference]: Without dead ends: 7867 [2022-01-18 00:47:31,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2022-01-18 00:47:31,096 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 175 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:31,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 2270 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:31,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7867 states. [2022-01-18 00:47:31,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7867 to 6933. [2022-01-18 00:47:31,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.7000865551067514) internal successors, (18717), 6932 states have internal predecessors, (18717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:31,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18717 transitions. [2022-01-18 00:47:31,192 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18717 transitions. Word has length 91 [2022-01-18 00:47:31,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:31,193 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18717 transitions. [2022-01-18 00:47:31,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:31,193 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18717 transitions. [2022-01-18 00:47:31,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:31,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:31,201 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] [2022-01-18 00:47:31,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 00:47:31,201 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:31,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:31,202 INFO L85 PathProgramCache]: Analyzing trace with hash -269171586, now seen corresponding path program 29 times [2022-01-18 00:47:31,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:31,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977567314] [2022-01-18 00:47:31,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:31,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:31,284 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 00:47:31,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:31,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977567314] [2022-01-18 00:47:31,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977567314] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:31,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:31,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:31,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419948002] [2022-01-18 00:47:31,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:31,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:31,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:31,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:31,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:31,285 INFO L87 Difference]: Start difference. First operand 6933 states and 18717 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:31,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:31,481 INFO L93 Difference]: Finished difference Result 8189 states and 22017 transitions. [2022-01-18 00:47:31,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 00:47:31,481 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:31,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:31,492 INFO L225 Difference]: With dead ends: 8189 [2022-01-18 00:47:31,492 INFO L226 Difference]: Without dead ends: 7904 [2022-01-18 00:47:31,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:47:31,493 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 210 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:31,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 1701 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:31,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7904 states. [2022-01-18 00:47:31,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7904 to 6937. [2022-01-18 00:47:31,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.699538638985006) internal successors, (18724), 6936 states have internal predecessors, (18724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:31,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18724 transitions. [2022-01-18 00:47:31,582 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18724 transitions. Word has length 91 [2022-01-18 00:47:31,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:31,582 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18724 transitions. [2022-01-18 00:47:31,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:31,582 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18724 transitions. [2022-01-18 00:47:31,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:31,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:31,591 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] [2022-01-18 00:47:31,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 00:47:31,591 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:31,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:31,591 INFO L85 PathProgramCache]: Analyzing trace with hash -687353240, now seen corresponding path program 30 times [2022-01-18 00:47:31,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:31,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800458961] [2022-01-18 00:47:31,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:31,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:31,698 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 00:47:31,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:31,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800458961] [2022-01-18 00:47:31,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800458961] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:31,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:31,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:31,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228614075] [2022-01-18 00:47:31,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:31,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:31,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:31,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:31,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:31,700 INFO L87 Difference]: Start difference. First operand 6937 states and 18724 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:32,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:32,010 INFO L93 Difference]: Finished difference Result 8122 states and 21852 transitions. [2022-01-18 00:47:32,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 00:47:32,010 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:32,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:32,020 INFO L225 Difference]: With dead ends: 8122 [2022-01-18 00:47:32,020 INFO L226 Difference]: Without dead ends: 7871 [2022-01-18 00:47:32,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-01-18 00:47:32,021 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 195 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 2046 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:32,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 2046 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:32,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7871 states. [2022-01-18 00:47:32,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7871 to 6941. [2022-01-18 00:47:32,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.698991354466859) internal successors, (18731), 6940 states have internal predecessors, (18731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:32,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18731 transitions. [2022-01-18 00:47:32,097 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18731 transitions. Word has length 91 [2022-01-18 00:47:32,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:32,098 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18731 transitions. [2022-01-18 00:47:32,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:32,098 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18731 transitions. [2022-01-18 00:47:32,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:32,131 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:32,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:32,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 00:47:32,131 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:32,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:32,132 INFO L85 PathProgramCache]: Analyzing trace with hash 805468194, now seen corresponding path program 31 times [2022-01-18 00:47:32,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:32,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954635643] [2022-01-18 00:47:32,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:32,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:32,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:32,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:32,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954635643] [2022-01-18 00:47:32,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954635643] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:32,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:32,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:32,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455895092] [2022-01-18 00:47:32,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:32,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:32,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:32,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:32,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:32,219 INFO L87 Difference]: Start difference. First operand 6941 states and 18731 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:32,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:32,433 INFO L93 Difference]: Finished difference Result 8093 states and 21770 transitions. [2022-01-18 00:47:32,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 00:47:32,433 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:32,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:32,446 INFO L225 Difference]: With dead ends: 8093 [2022-01-18 00:47:32,446 INFO L226 Difference]: Without dead ends: 7827 [2022-01-18 00:47:32,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2022-01-18 00:47:32,447 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 206 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:32,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 1441 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 00:47:32,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7827 states. [2022-01-18 00:47:32,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7827 to 6929. [2022-01-18 00:47:32,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 2.7000577367205545) internal successors, (18706), 6928 states have internal predecessors, (18706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:32,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 18706 transitions. [2022-01-18 00:47:32,559 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 18706 transitions. Word has length 91 [2022-01-18 00:47:32,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:32,560 INFO L470 AbstractCegarLoop]: Abstraction has 6929 states and 18706 transitions. [2022-01-18 00:47:32,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:32,560 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 18706 transitions. [2022-01-18 00:47:32,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:32,570 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:32,570 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] [2022-01-18 00:47:32,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 00:47:32,570 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:32,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:32,571 INFO L85 PathProgramCache]: Analyzing trace with hash 853696490, now seen corresponding path program 32 times [2022-01-18 00:47:32,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:32,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96005765] [2022-01-18 00:47:32,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:32,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:32,658 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 00:47:32,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:32,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96005765] [2022-01-18 00:47:32,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96005765] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:32,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:32,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:32,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281000667] [2022-01-18 00:47:32,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:32,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:32,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:32,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:32,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:32,660 INFO L87 Difference]: Start difference. First operand 6929 states and 18706 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:32,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:32,967 INFO L93 Difference]: Finished difference Result 8651 states and 23106 transitions. [2022-01-18 00:47:32,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 00:47:32,968 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:32,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:32,978 INFO L225 Difference]: With dead ends: 8651 [2022-01-18 00:47:32,978 INFO L226 Difference]: Without dead ends: 8344 [2022-01-18 00:47:32,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 00:47:32,979 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 573 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 2324 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:32,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [573 Valid, 2324 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:32,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8344 states. [2022-01-18 00:47:33,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8344 to 6877. [2022-01-18 00:47:33,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6877 states, 6876 states have (on average 2.6961896451425247) internal successors, (18539), 6876 states have internal predecessors, (18539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:33,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6877 states to 6877 states and 18539 transitions. [2022-01-18 00:47:33,059 INFO L78 Accepts]: Start accepts. Automaton has 6877 states and 18539 transitions. Word has length 91 [2022-01-18 00:47:33,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:33,059 INFO L470 AbstractCegarLoop]: Abstraction has 6877 states and 18539 transitions. [2022-01-18 00:47:33,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:33,059 INFO L276 IsEmpty]: Start isEmpty. Operand 6877 states and 18539 transitions. [2022-01-18 00:47:33,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:33,066 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:33,066 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:33,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 00:47:33,066 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:33,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:33,067 INFO L85 PathProgramCache]: Analyzing trace with hash -974686014, now seen corresponding path program 33 times [2022-01-18 00:47:33,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:33,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032118227] [2022-01-18 00:47:33,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:33,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:33,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:33,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:33,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032118227] [2022-01-18 00:47:33,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032118227] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:33,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:33,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:33,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321741935] [2022-01-18 00:47:33,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:33,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:33,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:33,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:33,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:33,183 INFO L87 Difference]: Start difference. First operand 6877 states and 18539 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:33,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:33,493 INFO L93 Difference]: Finished difference Result 8114 states and 21798 transitions. [2022-01-18 00:47:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 00:47:33,493 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:33,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:33,503 INFO L225 Difference]: With dead ends: 8114 [2022-01-18 00:47:33,503 INFO L226 Difference]: Without dead ends: 7835 [2022-01-18 00:47:33,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=245, Invalid=877, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 00:47:33,504 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 321 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:33,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 2485 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:33,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7835 states. [2022-01-18 00:47:33,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7835 to 6881. [2022-01-18 00:47:33,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6881 states, 6880 states have (on average 2.6956395348837208) internal successors, (18546), 6880 states have internal predecessors, (18546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:33,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6881 states to 6881 states and 18546 transitions. [2022-01-18 00:47:33,589 INFO L78 Accepts]: Start accepts. Automaton has 6881 states and 18546 transitions. Word has length 91 [2022-01-18 00:47:33,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:33,589 INFO L470 AbstractCegarLoop]: Abstraction has 6881 states and 18546 transitions. [2022-01-18 00:47:33,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:33,589 INFO L276 IsEmpty]: Start isEmpty. Operand 6881 states and 18546 transitions. [2022-01-18 00:47:33,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:33,597 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:33,597 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] [2022-01-18 00:47:33,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 00:47:33,597 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:33,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:33,597 INFO L85 PathProgramCache]: Analyzing trace with hash 269276080, now seen corresponding path program 34 times [2022-01-18 00:47:33,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:33,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247877233] [2022-01-18 00:47:33,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:33,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:33,687 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 00:47:33,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:33,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247877233] [2022-01-18 00:47:33,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247877233] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:33,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:33,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:33,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273539936] [2022-01-18 00:47:33,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:33,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:33,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:33,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:33,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:33,688 INFO L87 Difference]: Start difference. First operand 6881 states and 18546 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:33,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:33,912 INFO L93 Difference]: Finished difference Result 8034 states and 21586 transitions. [2022-01-18 00:47:33,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 00:47:33,912 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:33,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:33,922 INFO L225 Difference]: With dead ends: 8034 [2022-01-18 00:47:33,922 INFO L226 Difference]: Without dead ends: 7783 [2022-01-18 00:47:33,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2022-01-18 00:47:33,923 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 265 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:33,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 1942 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:33,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7783 states. [2022-01-18 00:47:33,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7783 to 6885. [2022-01-18 00:47:33,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6885 states, 6884 states have (on average 2.6950900639163278) internal successors, (18553), 6884 states have internal predecessors, (18553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:34,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6885 states to 6885 states and 18553 transitions. [2022-01-18 00:47:34,010 INFO L78 Accepts]: Start accepts. Automaton has 6885 states and 18553 transitions. Word has length 91 [2022-01-18 00:47:34,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:34,010 INFO L470 AbstractCegarLoop]: Abstraction has 6885 states and 18553 transitions. [2022-01-18 00:47:34,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:34,010 INFO L276 IsEmpty]: Start isEmpty. Operand 6885 states and 18553 transitions. [2022-01-18 00:47:34,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:34,018 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:34,018 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] [2022-01-18 00:47:34,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 00:47:34,018 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:34,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:34,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1762097514, now seen corresponding path program 35 times [2022-01-18 00:47:34,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:34,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597449563] [2022-01-18 00:47:34,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:34,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:34,111 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 00:47:34,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:34,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597449563] [2022-01-18 00:47:34,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597449563] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:34,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:34,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:34,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126540817] [2022-01-18 00:47:34,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:34,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:34,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:34,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:34,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:34,114 INFO L87 Difference]: Start difference. First operand 6885 states and 18553 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:34,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:34,331 INFO L93 Difference]: Finished difference Result 7997 states and 21482 transitions. [2022-01-18 00:47:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 00:47:34,332 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:34,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:34,342 INFO L225 Difference]: With dead ends: 7997 [2022-01-18 00:47:34,342 INFO L226 Difference]: Without dead ends: 7719 [2022-01-18 00:47:34,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2022-01-18 00:47:34,343 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 237 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1903 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 00:47:34,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 1903 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:34,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7719 states. [2022-01-18 00:47:34,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7719 to 6845. [2022-01-18 00:47:34,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6845 states, 6844 states have (on average 2.695353594389246) internal successors, (18447), 6844 states have internal predecessors, (18447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:34,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6845 states to 6845 states and 18447 transitions. [2022-01-18 00:47:34,425 INFO L78 Accepts]: Start accepts. Automaton has 6845 states and 18447 transitions. Word has length 91 [2022-01-18 00:47:34,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:34,426 INFO L470 AbstractCegarLoop]: Abstraction has 6845 states and 18447 transitions. [2022-01-18 00:47:34,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:34,426 INFO L276 IsEmpty]: Start isEmpty. Operand 6845 states and 18447 transitions. [2022-01-18 00:47:34,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:34,433 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:34,433 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] [2022-01-18 00:47:34,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 00:47:34,435 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:34,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:34,435 INFO L85 PathProgramCache]: Analyzing trace with hash 629696244, now seen corresponding path program 1 times [2022-01-18 00:47:34,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:34,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458714435] [2022-01-18 00:47:34,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:34,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:34,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:34,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:34,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458714435] [2022-01-18 00:47:34,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458714435] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:34,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:34,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:34,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534481503] [2022-01-18 00:47:34,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:34,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:34,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:34,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:34,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:34,529 INFO L87 Difference]: Start difference. First operand 6845 states and 18447 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:34,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:34,918 INFO L93 Difference]: Finished difference Result 8662 states and 23037 transitions. [2022-01-18 00:47:34,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-18 00:47:34,918 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:34,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:34,929 INFO L225 Difference]: With dead ends: 8662 [2022-01-18 00:47:34,930 INFO L226 Difference]: Without dead ends: 8340 [2022-01-18 00:47:34,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-01-18 00:47:34,930 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 484 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 2606 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 00:47:34,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 2606 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:34,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8340 states. [2022-01-18 00:47:35,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8340 to 6753. [2022-01-18 00:47:35,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6753 states, 6752 states have (on average 2.696830568720379) internal successors, (18209), 6752 states have internal predecessors, (18209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:35,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6753 states to 6753 states and 18209 transitions. [2022-01-18 00:47:35,018 INFO L78 Accepts]: Start accepts. Automaton has 6753 states and 18209 transitions. Word has length 91 [2022-01-18 00:47:35,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:35,018 INFO L470 AbstractCegarLoop]: Abstraction has 6753 states and 18209 transitions. [2022-01-18 00:47:35,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:35,018 INFO L276 IsEmpty]: Start isEmpty. Operand 6753 states and 18209 transitions. [2022-01-18 00:47:35,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:35,025 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:35,025 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] [2022-01-18 00:47:35,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 00:47:35,026 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:35,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:35,026 INFO L85 PathProgramCache]: Analyzing trace with hash 2025620248, now seen corresponding path program 2 times [2022-01-18 00:47:35,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:35,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684843379] [2022-01-18 00:47:35,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:35,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:35,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:35,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:35,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684843379] [2022-01-18 00:47:35,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684843379] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:35,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:35,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:35,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853253246] [2022-01-18 00:47:35,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:35,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:35,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:35,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:35,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:35,108 INFO L87 Difference]: Start difference. First operand 6753 states and 18209 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:35,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:35,434 INFO L93 Difference]: Finished difference Result 8011 states and 21504 transitions. [2022-01-18 00:47:35,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 00:47:35,435 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:35,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:35,448 INFO L225 Difference]: With dead ends: 8011 [2022-01-18 00:47:35,448 INFO L226 Difference]: Without dead ends: 7720 [2022-01-18 00:47:35,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=245, Invalid=877, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 00:47:35,449 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 252 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 2749 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 00:47:35,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [252 Valid, 2749 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:35,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7720 states. [2022-01-18 00:47:35,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7720 to 6757. [2022-01-18 00:47:35,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6757 states, 6756 states have (on average 2.6962699822380105) internal successors, (18216), 6756 states have internal predecessors, (18216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:35,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6757 states to 6757 states and 18216 transitions. [2022-01-18 00:47:35,540 INFO L78 Accepts]: Start accepts. Automaton has 6757 states and 18216 transitions. Word has length 91 [2022-01-18 00:47:35,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:35,541 INFO L470 AbstractCegarLoop]: Abstraction has 6757 states and 18216 transitions. [2022-01-18 00:47:35,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:35,541 INFO L276 IsEmpty]: Start isEmpty. Operand 6757 states and 18216 transitions. [2022-01-18 00:47:35,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:35,549 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:35,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:35,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 00:47:35,549 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:35,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:35,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1607438594, now seen corresponding path program 3 times [2022-01-18 00:47:35,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:35,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504887798] [2022-01-18 00:47:35,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:35,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:35,644 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 00:47:35,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:35,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504887798] [2022-01-18 00:47:35,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504887798] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:35,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:35,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:35,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838137782] [2022-01-18 00:47:35,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:35,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:35,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:35,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:35,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:35,646 INFO L87 Difference]: Start difference. First operand 6757 states and 18216 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:35,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:35,870 INFO L93 Difference]: Finished difference Result 7908 states and 21240 transitions. [2022-01-18 00:47:35,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 00:47:35,870 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:35,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:35,880 INFO L225 Difference]: With dead ends: 7908 [2022-01-18 00:47:35,880 INFO L226 Difference]: Without dead ends: 7651 [2022-01-18 00:47:35,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2022-01-18 00:47:35,881 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 194 mSDsluCounter, 1886 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:35,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 2148 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:35,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7651 states. [2022-01-18 00:47:35,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7651 to 6761. [2022-01-18 00:47:35,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6761 states, 6760 states have (on average 2.6957100591715975) internal successors, (18223), 6760 states have internal predecessors, (18223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:35,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6761 states to 6761 states and 18223 transitions. [2022-01-18 00:47:35,967 INFO L78 Accepts]: Start accepts. Automaton has 6761 states and 18223 transitions. Word has length 91 [2022-01-18 00:47:35,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:35,968 INFO L470 AbstractCegarLoop]: Abstraction has 6761 states and 18223 transitions. [2022-01-18 00:47:35,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:35,968 INFO L276 IsEmpty]: Start isEmpty. Operand 6761 states and 18223 transitions. [2022-01-18 00:47:35,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:35,976 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:35,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:35,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 00:47:35,976 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:35,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:35,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1194707268, now seen corresponding path program 4 times [2022-01-18 00:47:35,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:35,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515979855] [2022-01-18 00:47:35,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:35,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:36,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:36,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:36,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515979855] [2022-01-18 00:47:36,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515979855] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:36,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:36,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:36,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459004337] [2022-01-18 00:47:36,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:36,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:36,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:36,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:36,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:36,063 INFO L87 Difference]: Start difference. First operand 6761 states and 18223 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:36,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:36,324 INFO L93 Difference]: Finished difference Result 7879 states and 21158 transitions. [2022-01-18 00:47:36,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 00:47:36,325 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:36,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:36,337 INFO L225 Difference]: With dead ends: 7879 [2022-01-18 00:47:36,337 INFO L226 Difference]: Without dead ends: 7607 [2022-01-18 00:47:36,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2022-01-18 00:47:36,338 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 203 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:36,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 1891 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:36,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7607 states. [2022-01-18 00:47:36,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7607 to 6735. [2022-01-18 00:47:36,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6735 states, 6734 states have (on average 2.696762696762697) internal successors, (18160), 6734 states have internal predecessors, (18160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:36,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6735 states to 6735 states and 18160 transitions. [2022-01-18 00:47:36,438 INFO L78 Accepts]: Start accepts. Automaton has 6735 states and 18160 transitions. Word has length 91 [2022-01-18 00:47:36,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:36,438 INFO L470 AbstractCegarLoop]: Abstraction has 6735 states and 18160 transitions. [2022-01-18 00:47:36,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:36,439 INFO L276 IsEmpty]: Start isEmpty. Operand 6735 states and 18160 transitions. [2022-01-18 00:47:36,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:36,446 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:36,446 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] [2022-01-18 00:47:36,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 00:47:36,446 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:36,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:36,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1850666310, now seen corresponding path program 5 times [2022-01-18 00:47:36,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:36,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792070394] [2022-01-18 00:47:36,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:36,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:36,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:36,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:36,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792070394] [2022-01-18 00:47:36,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792070394] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:36,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:36,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:36,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043462606] [2022-01-18 00:47:36,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:36,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:36,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:36,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:36,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:36,535 INFO L87 Difference]: Start difference. First operand 6735 states and 18160 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:36,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:36,754 INFO L93 Difference]: Finished difference Result 8008 states and 21503 transitions. [2022-01-18 00:47:36,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 00:47:36,754 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:36,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:36,764 INFO L225 Difference]: With dead ends: 8008 [2022-01-18 00:47:36,764 INFO L226 Difference]: Without dead ends: 7723 [2022-01-18 00:47:36,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:47:36,765 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 193 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1831 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:36,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 1831 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:36,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7723 states. [2022-01-18 00:47:36,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7723 to 6743. [2022-01-18 00:47:36,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6743 states, 6742 states have (on average 2.6962325719371107) internal successors, (18178), 6742 states have internal predecessors, (18178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:36,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6743 states to 6743 states and 18178 transitions. [2022-01-18 00:47:36,849 INFO L78 Accepts]: Start accepts. Automaton has 6743 states and 18178 transitions. Word has length 91 [2022-01-18 00:47:36,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:36,849 INFO L470 AbstractCegarLoop]: Abstraction has 6743 states and 18178 transitions. [2022-01-18 00:47:36,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:36,849 INFO L276 IsEmpty]: Start isEmpty. Operand 6743 states and 18178 transitions. [2022-01-18 00:47:36,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:36,857 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:36,857 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] [2022-01-18 00:47:36,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 00:47:36,857 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:36,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:36,857 INFO L85 PathProgramCache]: Analyzing trace with hash -606704216, now seen corresponding path program 6 times [2022-01-18 00:47:36,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:36,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136089697] [2022-01-18 00:47:36,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:36,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:36,929 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 00:47:36,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:36,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136089697] [2022-01-18 00:47:36,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136089697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:36,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:36,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:36,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304265670] [2022-01-18 00:47:36,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:36,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:36,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:36,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:36,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:36,930 INFO L87 Difference]: Start difference. First operand 6743 states and 18178 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:37,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:37,107 INFO L93 Difference]: Finished difference Result 7956 states and 21368 transitions. [2022-01-18 00:47:37,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 00:47:37,107 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:37,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:37,117 INFO L225 Difference]: With dead ends: 7956 [2022-01-18 00:47:37,117 INFO L226 Difference]: Without dead ends: 7699 [2022-01-18 00:47:37,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2022-01-18 00:47:37,118 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 160 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:37,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 2024 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:37,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7699 states. [2022-01-18 00:47:37,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7699 to 6747. [2022-01-18 00:47:37,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6747 states, 6746 states have (on average 2.6956715090423953) internal successors, (18185), 6746 states have internal predecessors, (18185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:37,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6747 states to 6747 states and 18185 transitions. [2022-01-18 00:47:37,203 INFO L78 Accepts]: Start accepts. Automaton has 6747 states and 18185 transitions. Word has length 91 [2022-01-18 00:47:37,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:37,204 INFO L470 AbstractCegarLoop]: Abstraction has 6747 states and 18185 transitions. [2022-01-18 00:47:37,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:37,204 INFO L276 IsEmpty]: Start isEmpty. Operand 6747 states and 18185 transitions. [2022-01-18 00:47:37,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:37,211 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:37,211 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:37,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 00:47:37,211 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:37,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:37,212 INFO L85 PathProgramCache]: Analyzing trace with hash 886117218, now seen corresponding path program 7 times [2022-01-18 00:47:37,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:37,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720156823] [2022-01-18 00:47:37,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:37,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:37,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:37,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:37,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720156823] [2022-01-18 00:47:37,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720156823] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:37,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:37,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:37,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853819315] [2022-01-18 00:47:37,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:37,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:37,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:37,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:37,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:37,284 INFO L87 Difference]: Start difference. First operand 6747 states and 18185 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:37,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:37,468 INFO L93 Difference]: Finished difference Result 7927 states and 21286 transitions. [2022-01-18 00:47:37,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 00:47:37,468 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:37,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:37,478 INFO L225 Difference]: With dead ends: 7927 [2022-01-18 00:47:37,479 INFO L226 Difference]: Without dead ends: 7659 [2022-01-18 00:47:37,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-01-18 00:47:37,479 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 165 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:37,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 1750 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:37,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7659 states. [2022-01-18 00:47:37,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7659 to 6739. [2022-01-18 00:47:37,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6739 states, 6738 states have (on average 2.6962006530127636) internal successors, (18167), 6738 states have internal predecessors, (18167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:37,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6739 states to 6739 states and 18167 transitions. [2022-01-18 00:47:37,620 INFO L78 Accepts]: Start accepts. Automaton has 6739 states and 18167 transitions. Word has length 91 [2022-01-18 00:47:37,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:37,621 INFO L470 AbstractCegarLoop]: Abstraction has 6739 states and 18167 transitions. [2022-01-18 00:47:37,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:37,621 INFO L276 IsEmpty]: Start isEmpty. Operand 6739 states and 18167 transitions. [2022-01-18 00:47:37,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:37,628 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:37,628 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:37,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-18 00:47:37,628 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:37,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:37,629 INFO L85 PathProgramCache]: Analyzing trace with hash -106201352, now seen corresponding path program 8 times [2022-01-18 00:47:37,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:37,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67445232] [2022-01-18 00:47:37,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:37,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:37,691 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 00:47:37,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:37,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67445232] [2022-01-18 00:47:37,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67445232] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:37,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:37,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:37,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952930707] [2022-01-18 00:47:37,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:37,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:37,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:37,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:37,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:37,692 INFO L87 Difference]: Start difference. First operand 6739 states and 18167 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:37,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:37,974 INFO L93 Difference]: Finished difference Result 8011 states and 21496 transitions. [2022-01-18 00:47:37,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 00:47:37,975 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:37,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:37,987 INFO L225 Difference]: With dead ends: 8011 [2022-01-18 00:47:37,987 INFO L226 Difference]: Without dead ends: 7720 [2022-01-18 00:47:37,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=241, Invalid=815, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 00:47:37,988 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 215 mSDsluCounter, 2039 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 2269 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 00:47:37,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 2269 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:37,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7720 states. [2022-01-18 00:47:38,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7720 to 6743. [2022-01-18 00:47:38,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6743 states, 6742 states have (on average 2.6956392761791754) internal successors, (18174), 6742 states have internal predecessors, (18174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:38,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6743 states to 6743 states and 18174 transitions. [2022-01-18 00:47:38,074 INFO L78 Accepts]: Start accepts. Automaton has 6743 states and 18174 transitions. Word has length 91 [2022-01-18 00:47:38,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:38,074 INFO L470 AbstractCegarLoop]: Abstraction has 6743 states and 18174 transitions. [2022-01-18 00:47:38,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:38,074 INFO L276 IsEmpty]: Start isEmpty. Operand 6743 states and 18174 transitions. [2022-01-18 00:47:38,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:38,081 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:38,081 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] [2022-01-18 00:47:38,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-18 00:47:38,082 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:38,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:38,082 INFO L85 PathProgramCache]: Analyzing trace with hash -524383006, now seen corresponding path program 9 times [2022-01-18 00:47:38,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:38,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116698327] [2022-01-18 00:47:38,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:38,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:38,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:38,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:38,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116698327] [2022-01-18 00:47:38,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116698327] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:38,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:38,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:38,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834921325] [2022-01-18 00:47:38,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:38,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:38,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:38,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:38,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:38,168 INFO L87 Difference]: Start difference. First operand 6743 states and 18174 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:38,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:38,433 INFO L93 Difference]: Finished difference Result 7920 states and 21265 transitions. [2022-01-18 00:47:38,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 00:47:38,433 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:38,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:38,443 INFO L225 Difference]: With dead ends: 7920 [2022-01-18 00:47:38,444 INFO L226 Difference]: Without dead ends: 7663 [2022-01-18 00:47:38,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2022-01-18 00:47:38,444 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 159 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:38,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 2138 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:38,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7663 states. [2022-01-18 00:47:38,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7663 to 6747. [2022-01-18 00:47:38,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6747 states, 6746 states have (on average 2.6950785650756) internal successors, (18181), 6746 states have internal predecessors, (18181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:38,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6747 states to 6747 states and 18181 transitions. [2022-01-18 00:47:38,544 INFO L78 Accepts]: Start accepts. Automaton has 6747 states and 18181 transitions. Word has length 91 [2022-01-18 00:47:38,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:38,544 INFO L470 AbstractCegarLoop]: Abstraction has 6747 states and 18181 transitions. [2022-01-18 00:47:38,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:38,544 INFO L276 IsEmpty]: Start isEmpty. Operand 6747 states and 18181 transitions. [2022-01-18 00:47:38,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:38,552 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:38,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:38,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-18 00:47:38,552 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:38,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:38,552 INFO L85 PathProgramCache]: Analyzing trace with hash 968438428, now seen corresponding path program 10 times [2022-01-18 00:47:38,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:38,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285875557] [2022-01-18 00:47:38,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:38,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:38,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:38,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:38,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285875557] [2022-01-18 00:47:38,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285875557] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:38,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:38,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:38,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084722209] [2022-01-18 00:47:38,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:38,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:38,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:38,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:38,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:38,615 INFO L87 Difference]: Start difference. First operand 6747 states and 18181 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:38,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:38,851 INFO L93 Difference]: Finished difference Result 7879 states and 21150 transitions. [2022-01-18 00:47:38,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 00:47:38,851 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:38,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:38,861 INFO L225 Difference]: With dead ends: 7879 [2022-01-18 00:47:38,861 INFO L226 Difference]: Without dead ends: 7603 [2022-01-18 00:47:38,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2022-01-18 00:47:38,862 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 171 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1962 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:38,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 1962 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:38,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7603 states. [2022-01-18 00:47:38,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7603 to 6717. [2022-01-18 00:47:38,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6717 states, 6716 states have (on average 2.6966944609886836) internal successors, (18111), 6716 states have internal predecessors, (18111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:38,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6717 states to 6717 states and 18111 transitions. [2022-01-18 00:47:38,950 INFO L78 Accepts]: Start accepts. Automaton has 6717 states and 18111 transitions. Word has length 91 [2022-01-18 00:47:38,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:38,950 INFO L470 AbstractCegarLoop]: Abstraction has 6717 states and 18111 transitions. [2022-01-18 00:47:38,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:38,950 INFO L276 IsEmpty]: Start isEmpty. Operand 6717 states and 18111 transitions. [2022-01-18 00:47:38,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:38,957 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:38,957 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] [2022-01-18 00:47:38,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-18 00:47:38,958 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:38,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:38,958 INFO L85 PathProgramCache]: Analyzing trace with hash 712233108, now seen corresponding path program 11 times [2022-01-18 00:47:38,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:38,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126676383] [2022-01-18 00:47:38,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:38,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:39,044 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 00:47:39,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:39,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126676383] [2022-01-18 00:47:39,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126676383] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:39,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:39,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:39,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045372120] [2022-01-18 00:47:39,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:39,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:39,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:39,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:39,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:39,045 INFO L87 Difference]: Start difference. First operand 6717 states and 18111 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:39,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:39,366 INFO L93 Difference]: Finished difference Result 8104 states and 21751 transitions. [2022-01-18 00:47:39,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 00:47:39,367 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:39,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:39,379 INFO L225 Difference]: With dead ends: 8104 [2022-01-18 00:47:39,379 INFO L226 Difference]: Without dead ends: 7791 [2022-01-18 00:47:39,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2022-01-18 00:47:39,380 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 190 mSDsluCounter, 1381 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:39,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 1593 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:39,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7791 states. [2022-01-18 00:47:39,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7791 to 6725. [2022-01-18 00:47:39,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6725 states, 6724 states have (on average 2.696162998215348) internal successors, (18129), 6724 states have internal predecessors, (18129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6725 states to 6725 states and 18129 transitions. [2022-01-18 00:47:39,477 INFO L78 Accepts]: Start accepts. Automaton has 6725 states and 18129 transitions. Word has length 91 [2022-01-18 00:47:39,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:39,478 INFO L470 AbstractCegarLoop]: Abstraction has 6725 states and 18129 transitions. [2022-01-18 00:47:39,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:39,478 INFO L276 IsEmpty]: Start isEmpty. Operand 6725 states and 18129 transitions. [2022-01-18 00:47:39,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:39,486 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:39,486 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] [2022-01-18 00:47:39,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-18 00:47:39,486 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:39,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:39,486 INFO L85 PathProgramCache]: Analyzing trace with hash -456059060, now seen corresponding path program 12 times [2022-01-18 00:47:39,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:39,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941697894] [2022-01-18 00:47:39,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:39,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:39,575 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 00:47:39,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:39,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941697894] [2022-01-18 00:47:39,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941697894] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:39,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:39,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:39,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863530923] [2022-01-18 00:47:39,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:39,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:39,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:39,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:39,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:39,581 INFO L87 Difference]: Start difference. First operand 6725 states and 18129 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:39,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:39,815 INFO L93 Difference]: Finished difference Result 8076 states and 21682 transitions. [2022-01-18 00:47:39,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 00:47:39,815 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:39,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:39,824 INFO L225 Difference]: With dead ends: 8076 [2022-01-18 00:47:39,824 INFO L226 Difference]: Without dead ends: 7791 [2022-01-18 00:47:39,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=197, Invalid=615, Unknown=0, NotChecked=0, Total=812 [2022-01-18 00:47:39,825 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 162 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:39,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 1461 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:39,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7791 states. [2022-01-18 00:47:39,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7791 to 6729. [2022-01-18 00:47:39,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6728 states have (on average 2.6956004756242566) internal successors, (18136), 6728 states have internal predecessors, (18136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:39,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 18136 transitions. [2022-01-18 00:47:39,899 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 18136 transitions. Word has length 91 [2022-01-18 00:47:39,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:39,900 INFO L470 AbstractCegarLoop]: Abstraction has 6729 states and 18136 transitions. [2022-01-18 00:47:39,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:39,900 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 18136 transitions. [2022-01-18 00:47:39,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:39,906 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:39,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:39,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-18 00:47:39,907 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:39,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:39,907 INFO L85 PathProgramCache]: Analyzing trace with hash 787903034, now seen corresponding path program 13 times [2022-01-18 00:47:39,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:39,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320839639] [2022-01-18 00:47:39,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:39,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:40,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:40,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:40,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320839639] [2022-01-18 00:47:40,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320839639] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:40,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:40,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:40,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970205229] [2022-01-18 00:47:40,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:40,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:40,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:40,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:40,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:40,021 INFO L87 Difference]: Start difference. First operand 6729 states and 18136 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:40,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:40,256 INFO L93 Difference]: Finished difference Result 7996 states and 21470 transitions. [2022-01-18 00:47:40,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 00:47:40,256 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:40,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:40,267 INFO L225 Difference]: With dead ends: 7996 [2022-01-18 00:47:40,267 INFO L226 Difference]: Without dead ends: 7739 [2022-01-18 00:47:40,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2022-01-18 00:47:40,268 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 123 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:40,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1631 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:40,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7739 states. [2022-01-18 00:47:40,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7739 to 6733. [2022-01-18 00:47:40,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 6732 states have (on average 2.6950386215092097) internal successors, (18143), 6732 states have internal predecessors, (18143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:40,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 18143 transitions. [2022-01-18 00:47:40,356 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 18143 transitions. Word has length 91 [2022-01-18 00:47:40,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:40,357 INFO L470 AbstractCegarLoop]: Abstraction has 6733 states and 18143 transitions. [2022-01-18 00:47:40,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:40,357 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 18143 transitions. [2022-01-18 00:47:40,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:40,364 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:40,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:40,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-18 00:47:40,365 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:40,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:40,365 INFO L85 PathProgramCache]: Analyzing trace with hash -2014242828, now seen corresponding path program 14 times [2022-01-18 00:47:40,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:40,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488827092] [2022-01-18 00:47:40,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:40,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:40,452 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 00:47:40,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:40,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488827092] [2022-01-18 00:47:40,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488827092] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:40,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:40,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:40,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673481801] [2022-01-18 00:47:40,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:40,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:40,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:40,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:40,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:40,453 INFO L87 Difference]: Start difference. First operand 6733 states and 18143 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:40,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:40,635 INFO L93 Difference]: Finished difference Result 7959 states and 21366 transitions. [2022-01-18 00:47:40,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 00:47:40,636 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:40,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:40,646 INFO L225 Difference]: With dead ends: 7959 [2022-01-18 00:47:40,646 INFO L226 Difference]: Without dead ends: 7687 [2022-01-18 00:47:40,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-01-18 00:47:40,646 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 123 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1724 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:40,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1724 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:40,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7687 states. [2022-01-18 00:47:40,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7687 to 6721. [2022-01-18 00:47:40,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6721 states, 6720 states have (on average 2.6961309523809525) internal successors, (18118), 6720 states have internal predecessors, (18118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:40,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6721 states to 6721 states and 18118 transitions. [2022-01-18 00:47:40,736 INFO L78 Accepts]: Start accepts. Automaton has 6721 states and 18118 transitions. Word has length 91 [2022-01-18 00:47:40,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:40,736 INFO L470 AbstractCegarLoop]: Abstraction has 6721 states and 18118 transitions. [2022-01-18 00:47:40,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:40,737 INFO L276 IsEmpty]: Start isEmpty. Operand 6721 states and 18118 transitions. [2022-01-18 00:47:40,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:40,744 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:40,744 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:40,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-18 00:47:40,745 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:40,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:40,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1391839194, now seen corresponding path program 15 times [2022-01-18 00:47:40,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:40,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586593574] [2022-01-18 00:47:40,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:40,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:40,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:40,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:40,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586593574] [2022-01-18 00:47:40,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586593574] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:40,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:40,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:40,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842559426] [2022-01-18 00:47:40,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:40,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:40,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:40,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:40,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:40,833 INFO L87 Difference]: Start difference. First operand 6721 states and 18118 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:41,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:41,104 INFO L93 Difference]: Finished difference Result 8024 states and 21539 transitions. [2022-01-18 00:47:41,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 00:47:41,104 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:41,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:41,114 INFO L225 Difference]: With dead ends: 8024 [2022-01-18 00:47:41,115 INFO L226 Difference]: Without dead ends: 7739 [2022-01-18 00:47:41,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=196, Invalid=616, Unknown=0, NotChecked=0, Total=812 [2022-01-18 00:47:41,115 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 155 mSDsluCounter, 1794 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1999 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:41,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 1999 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:41,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7739 states. [2022-01-18 00:47:41,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7739 to 6729. [2022-01-18 00:47:41,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6728 states have (on average 2.6956004756242566) internal successors, (18136), 6728 states have internal predecessors, (18136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:41,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 18136 transitions. [2022-01-18 00:47:41,200 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 18136 transitions. Word has length 91 [2022-01-18 00:47:41,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:41,200 INFO L470 AbstractCegarLoop]: Abstraction has 6729 states and 18136 transitions. [2022-01-18 00:47:41,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:41,200 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 18136 transitions. [2022-01-18 00:47:41,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:41,208 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:41,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:41,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-18 00:47:41,208 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:41,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:41,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1659166008, now seen corresponding path program 16 times [2022-01-18 00:47:41,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:41,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579323803] [2022-01-18 00:47:41,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:41,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:41,297 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 00:47:41,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:41,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579323803] [2022-01-18 00:47:41,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579323803] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:41,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:41,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:41,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991858088] [2022-01-18 00:47:41,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:41,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:41,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:41,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:41,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:41,298 INFO L87 Difference]: Start difference. First operand 6729 states and 18136 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:41,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:41,533 INFO L93 Difference]: Finished difference Result 7972 states and 21404 transitions. [2022-01-18 00:47:41,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 00:47:41,534 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:41,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:41,544 INFO L225 Difference]: With dead ends: 7972 [2022-01-18 00:47:41,544 INFO L226 Difference]: Without dead ends: 7715 [2022-01-18 00:47:41,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2022-01-18 00:47:41,545 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 131 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:41,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 1691 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:41,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7715 states. [2022-01-18 00:47:41,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7715 to 6733. [2022-01-18 00:47:41,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 6732 states have (on average 2.6950386215092097) internal successors, (18143), 6732 states have internal predecessors, (18143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:41,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 18143 transitions. [2022-01-18 00:47:41,631 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 18143 transitions. Word has length 91 [2022-01-18 00:47:41,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:41,632 INFO L470 AbstractCegarLoop]: Abstraction has 6733 states and 18143 transitions. [2022-01-18 00:47:41,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:41,632 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 18143 transitions. [2022-01-18 00:47:41,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:41,639 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:41,639 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] [2022-01-18 00:47:41,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-18 00:47:41,640 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:41,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:41,640 INFO L85 PathProgramCache]: Analyzing trace with hash -166344574, now seen corresponding path program 17 times [2022-01-18 00:47:41,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:41,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191227313] [2022-01-18 00:47:41,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:41,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:41,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:41,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:41,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191227313] [2022-01-18 00:47:41,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191227313] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:41,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:41,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:41,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868995004] [2022-01-18 00:47:41,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:41,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:41,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:41,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:41,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:41,731 INFO L87 Difference]: Start difference. First operand 6733 states and 18143 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:41,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:41,940 INFO L93 Difference]: Finished difference Result 7943 states and 21322 transitions. [2022-01-18 00:47:41,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 00:47:41,940 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:41,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:41,952 INFO L225 Difference]: With dead ends: 7943 [2022-01-18 00:47:41,953 INFO L226 Difference]: Without dead ends: 7675 [2022-01-18 00:47:41,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2022-01-18 00:47:41,953 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 125 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:41,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 1915 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:41,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7675 states. [2022-01-18 00:47:42,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7675 to 6725. [2022-01-18 00:47:42,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6725 states, 6724 states have (on average 2.6955681142177275) internal successors, (18125), 6724 states have internal predecessors, (18125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:42,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6725 states to 6725 states and 18125 transitions. [2022-01-18 00:47:42,042 INFO L78 Accepts]: Start accepts. Automaton has 6725 states and 18125 transitions. Word has length 91 [2022-01-18 00:47:42,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:42,042 INFO L470 AbstractCegarLoop]: Abstraction has 6725 states and 18125 transitions. [2022-01-18 00:47:42,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:42,042 INFO L276 IsEmpty]: Start isEmpty. Operand 6725 states and 18125 transitions. [2022-01-18 00:47:42,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:42,050 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:42,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:42,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-18 00:47:42,050 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:42,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:42,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1158663144, now seen corresponding path program 18 times [2022-01-18 00:47:42,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:42,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704041741] [2022-01-18 00:47:42,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:42,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:42,143 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 00:47:42,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:42,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704041741] [2022-01-18 00:47:42,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704041741] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:42,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:42,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:42,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714551821] [2022-01-18 00:47:42,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:42,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:42,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:42,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:42,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:42,145 INFO L87 Difference]: Start difference. First operand 6725 states and 18125 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:42,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:42,480 INFO L93 Difference]: Finished difference Result 8011 states and 21488 transitions. [2022-01-18 00:47:42,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-18 00:47:42,480 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:42,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:42,495 INFO L225 Difference]: With dead ends: 8011 [2022-01-18 00:47:42,495 INFO L226 Difference]: Without dead ends: 7720 [2022-01-18 00:47:42,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=220, Invalid=710, Unknown=0, NotChecked=0, Total=930 [2022-01-18 00:47:42,496 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 178 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1998 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:42,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 1998 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:42,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7720 states. [2022-01-18 00:47:42,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7720 to 6729. [2022-01-18 00:47:42,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6728 states have (on average 2.6950059453032105) internal successors, (18132), 6728 states have internal predecessors, (18132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:42,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 18132 transitions. [2022-01-18 00:47:42,586 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 18132 transitions. Word has length 91 [2022-01-18 00:47:42,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:42,586 INFO L470 AbstractCegarLoop]: Abstraction has 6729 states and 18132 transitions. [2022-01-18 00:47:42,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:42,586 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 18132 transitions. [2022-01-18 00:47:42,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:42,594 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:42,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:42,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-18 00:47:42,594 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:42,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:42,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1576844798, now seen corresponding path program 19 times [2022-01-18 00:47:42,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:42,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598480740] [2022-01-18 00:47:42,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:42,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:42,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:42,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:42,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598480740] [2022-01-18 00:47:42,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598480740] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:42,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:42,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:42,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898190436] [2022-01-18 00:47:42,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:42,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:42,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:42,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:42,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:42,683 INFO L87 Difference]: Start difference. First operand 6729 states and 18132 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:42,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:42,941 INFO L93 Difference]: Finished difference Result 7932 states and 21290 transitions. [2022-01-18 00:47:42,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 00:47:42,941 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:42,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:42,950 INFO L225 Difference]: With dead ends: 7932 [2022-01-18 00:47:42,950 INFO L226 Difference]: Without dead ends: 7675 [2022-01-18 00:47:42,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-01-18 00:47:42,950 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 132 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1878 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:42,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 1878 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:42,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7675 states. [2022-01-18 00:47:43,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7675 to 6733. [2022-01-18 00:47:43,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 6732 states have (on average 2.6944444444444446) internal successors, (18139), 6732 states have internal predecessors, (18139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:43,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 18139 transitions. [2022-01-18 00:47:43,030 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 18139 transitions. Word has length 91 [2022-01-18 00:47:43,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:43,030 INFO L470 AbstractCegarLoop]: Abstraction has 6733 states and 18139 transitions. [2022-01-18 00:47:43,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:43,030 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 18139 transitions. [2022-01-18 00:47:43,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:43,038 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:43,038 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] [2022-01-18 00:47:43,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-18 00:47:43,038 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:43,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:43,039 INFO L85 PathProgramCache]: Analyzing trace with hash -84023364, now seen corresponding path program 20 times [2022-01-18 00:47:43,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:43,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400894039] [2022-01-18 00:47:43,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:43,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:43,127 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 00:47:43,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:43,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400894039] [2022-01-18 00:47:43,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400894039] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:43,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:43,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:43,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884313297] [2022-01-18 00:47:43,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:43,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:43,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:43,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:43,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:43,129 INFO L87 Difference]: Start difference. First operand 6733 states and 18139 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:43,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:43,368 INFO L93 Difference]: Finished difference Result 7879 states and 21142 transitions. [2022-01-18 00:47:43,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 00:47:43,368 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:43,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:43,379 INFO L225 Difference]: With dead ends: 7879 [2022-01-18 00:47:43,379 INFO L226 Difference]: Without dead ends: 7599 [2022-01-18 00:47:43,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2022-01-18 00:47:43,379 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 133 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:43,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 1729 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:43,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7599 states. [2022-01-18 00:47:43,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7599 to 6709. [2022-01-18 00:47:43,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6709 states, 6708 states have (on average 2.6960345855694694) internal successors, (18085), 6708 states have internal predecessors, (18085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:43,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6709 states to 6709 states and 18085 transitions. [2022-01-18 00:47:43,463 INFO L78 Accepts]: Start accepts. Automaton has 6709 states and 18085 transitions. Word has length 91 [2022-01-18 00:47:43,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:43,464 INFO L470 AbstractCegarLoop]: Abstraction has 6709 states and 18085 transitions. [2022-01-18 00:47:43,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:43,464 INFO L276 IsEmpty]: Start isEmpty. Operand 6709 states and 18085 transitions. [2022-01-18 00:47:43,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:43,471 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:43,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:43,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-18 00:47:43,472 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:43,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:43,472 INFO L85 PathProgramCache]: Analyzing trace with hash 766843090, now seen corresponding path program 21 times [2022-01-18 00:47:43,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:43,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239524156] [2022-01-18 00:47:43,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:43,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:43,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:43,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:43,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239524156] [2022-01-18 00:47:43,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239524156] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:43,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:43,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:43,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320437937] [2022-01-18 00:47:43,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:43,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:43,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:43,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:43,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:43,566 INFO L87 Difference]: Start difference. First operand 6709 states and 18085 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:43,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:43,905 INFO L93 Difference]: Finished difference Result 8294 states and 22104 transitions. [2022-01-18 00:47:43,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 00:47:43,905 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:43,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:43,916 INFO L225 Difference]: With dead ends: 8294 [2022-01-18 00:47:43,916 INFO L226 Difference]: Without dead ends: 7953 [2022-01-18 00:47:43,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=283, Invalid=839, Unknown=0, NotChecked=0, Total=1122 [2022-01-18 00:47:43,916 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 396 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:43,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 2421 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:43,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7953 states. [2022-01-18 00:47:43,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7953 to 6633. [2022-01-18 00:47:43,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.692400482509047) internal successors, (17856), 6632 states have internal predecessors, (17856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:44,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17856 transitions. [2022-01-18 00:47:44,002 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17856 transitions. Word has length 91 [2022-01-18 00:47:44,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:44,002 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17856 transitions. [2022-01-18 00:47:44,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:44,002 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17856 transitions. [2022-01-18 00:47:44,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:44,010 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:44,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:44,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-18 00:47:44,010 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:44,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:44,011 INFO L85 PathProgramCache]: Analyzing trace with hash 519941212, now seen corresponding path program 22 times [2022-01-18 00:47:44,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:44,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876587987] [2022-01-18 00:47:44,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:44,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:44,096 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 00:47:44,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:44,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876587987] [2022-01-18 00:47:44,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876587987] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:44,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:44,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:44,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881714063] [2022-01-18 00:47:44,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:44,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:44,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:44,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:44,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:44,098 INFO L87 Difference]: Start difference. First operand 6633 states and 17856 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:44,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:44,357 INFO L93 Difference]: Finished difference Result 7674 states and 20566 transitions. [2022-01-18 00:47:44,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 00:47:44,357 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:44,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:44,367 INFO L225 Difference]: With dead ends: 7674 [2022-01-18 00:47:44,367 INFO L226 Difference]: Without dead ends: 7361 [2022-01-18 00:47:44,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=244, Invalid=812, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 00:47:44,368 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 233 mSDsluCounter, 1951 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2177 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:44,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2177 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:44,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7361 states. [2022-01-18 00:47:44,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7361 to 6637. [2022-01-18 00:47:44,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6637 states, 6636 states have (on average 2.6918324291742013) internal successors, (17863), 6636 states have internal predecessors, (17863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:44,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6637 states to 6637 states and 17863 transitions. [2022-01-18 00:47:44,450 INFO L78 Accepts]: Start accepts. Automaton has 6637 states and 17863 transitions. Word has length 91 [2022-01-18 00:47:44,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:44,451 INFO L470 AbstractCegarLoop]: Abstraction has 6637 states and 17863 transitions. [2022-01-18 00:47:44,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:44,451 INFO L276 IsEmpty]: Start isEmpty. Operand 6637 states and 17863 transitions. [2022-01-18 00:47:44,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:44,458 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:44,458 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] [2022-01-18 00:47:44,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-18 00:47:44,459 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:44,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:44,459 INFO L85 PathProgramCache]: Analyzing trace with hash -648350956, now seen corresponding path program 23 times [2022-01-18 00:47:44,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:44,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333228138] [2022-01-18 00:47:44,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:44,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:44,549 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 00:47:44,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:44,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333228138] [2022-01-18 00:47:44,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333228138] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:44,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:44,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:44,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481425690] [2022-01-18 00:47:44,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:44,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:44,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:44,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:44,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:44,550 INFO L87 Difference]: Start difference. First operand 6637 states and 17863 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:44,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:44,803 INFO L93 Difference]: Finished difference Result 7594 states and 20354 transitions. [2022-01-18 00:47:44,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 00:47:44,804 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:44,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:44,813 INFO L225 Difference]: With dead ends: 7594 [2022-01-18 00:47:44,814 INFO L226 Difference]: Without dead ends: 7309 [2022-01-18 00:47:44,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=684, Unknown=0, NotChecked=0, Total=870 [2022-01-18 00:47:44,814 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 197 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 1975 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 00:47:44,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 1975 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:44,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7309 states. [2022-01-18 00:47:44,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7309 to 6641. [2022-01-18 00:47:44,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6641 states, 6640 states have (on average 2.691265060240964) internal successors, (17870), 6640 states have internal predecessors, (17870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:44,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6641 states to 6641 states and 17870 transitions. [2022-01-18 00:47:44,897 INFO L78 Accepts]: Start accepts. Automaton has 6641 states and 17870 transitions. Word has length 91 [2022-01-18 00:47:44,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:44,897 INFO L470 AbstractCegarLoop]: Abstraction has 6641 states and 17870 transitions. [2022-01-18 00:47:44,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:44,897 INFO L276 IsEmpty]: Start isEmpty. Operand 6641 states and 17870 transitions. [2022-01-18 00:47:44,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:44,905 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:44,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:44,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-18 00:47:44,905 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:44,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:44,905 INFO L85 PathProgramCache]: Analyzing trace with hash 595611138, now seen corresponding path program 24 times [2022-01-18 00:47:44,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:44,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648503901] [2022-01-18 00:47:44,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:44,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:44,987 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 00:47:44,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:44,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648503901] [2022-01-18 00:47:44,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648503901] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:44,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:44,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:44,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323201934] [2022-01-18 00:47:44,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:44,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:44,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:44,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:44,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:44,989 INFO L87 Difference]: Start difference. First operand 6641 states and 17870 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:45,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:45,181 INFO L93 Difference]: Finished difference Result 7514 states and 20142 transitions. [2022-01-18 00:47:45,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 00:47:45,181 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:45,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:45,191 INFO L225 Difference]: With dead ends: 7514 [2022-01-18 00:47:45,191 INFO L226 Difference]: Without dead ends: 7257 [2022-01-18 00:47:45,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-01-18 00:47:45,191 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 157 mSDsluCounter, 1454 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:45,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 1676 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:45,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7257 states. [2022-01-18 00:47:45,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7257 to 6645. [2022-01-18 00:47:45,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6645 states, 6644 states have (on average 2.6906983744732087) internal successors, (17877), 6644 states have internal predecessors, (17877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:45,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6645 states to 6645 states and 17877 transitions. [2022-01-18 00:47:45,287 INFO L78 Accepts]: Start accepts. Automaton has 6645 states and 17877 transitions. Word has length 91 [2022-01-18 00:47:45,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:45,287 INFO L470 AbstractCegarLoop]: Abstraction has 6645 states and 17877 transitions. [2022-01-18 00:47:45,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:45,287 INFO L276 IsEmpty]: Start isEmpty. Operand 6645 states and 17877 transitions. [2022-01-18 00:47:45,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:45,295 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:45,295 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] [2022-01-18 00:47:45,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-18 00:47:45,295 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:45,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:45,295 INFO L85 PathProgramCache]: Analyzing trace with hash 2088432572, now seen corresponding path program 25 times [2022-01-18 00:47:45,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:45,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064857762] [2022-01-18 00:47:45,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:45,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:45,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:45,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:45,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064857762] [2022-01-18 00:47:45,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064857762] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:45,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:45,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:45,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423987061] [2022-01-18 00:47:45,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:45,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:45,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:45,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:45,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:45,363 INFO L87 Difference]: Start difference. First operand 6645 states and 17877 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:45,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:45,563 INFO L93 Difference]: Finished difference Result 7469 states and 20016 transitions. [2022-01-18 00:47:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 00:47:45,563 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:45,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:45,573 INFO L225 Difference]: With dead ends: 7469 [2022-01-18 00:47:45,573 INFO L226 Difference]: Without dead ends: 7193 [2022-01-18 00:47:45,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=436, Unknown=0, NotChecked=0, Total=600 [2022-01-18 00:47:45,574 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 163 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:45,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 1268 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 00:47:45,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7193 states. [2022-01-18 00:47:45,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7193 to 6617. [2022-01-18 00:47:45,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6617 states, 6616 states have (on average 2.6916565900846434) internal successors, (17808), 6616 states have internal predecessors, (17808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:45,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6617 states to 6617 states and 17808 transitions. [2022-01-18 00:47:45,655 INFO L78 Accepts]: Start accepts. Automaton has 6617 states and 17808 transitions. Word has length 91 [2022-01-18 00:47:45,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:45,655 INFO L470 AbstractCegarLoop]: Abstraction has 6617 states and 17808 transitions. [2022-01-18 00:47:45,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:45,655 INFO L276 IsEmpty]: Start isEmpty. Operand 6617 states and 17808 transitions. [2022-01-18 00:47:45,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:45,663 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:45,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:45,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-18 00:47:45,663 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:45,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:45,663 INFO L85 PathProgramCache]: Analyzing trace with hash 85978932, now seen corresponding path program 26 times [2022-01-18 00:47:45,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:45,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622072710] [2022-01-18 00:47:45,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:45,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:45,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:45,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:45,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622072710] [2022-01-18 00:47:45,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622072710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:45,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:45,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:45,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767144228] [2022-01-18 00:47:45,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:45,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:45,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:45,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:45,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:45,753 INFO L87 Difference]: Start difference. First operand 6617 states and 17808 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:46,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:46,041 INFO L93 Difference]: Finished difference Result 7694 states and 20617 transitions. [2022-01-18 00:47:46,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 00:47:46,041 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:46,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:46,052 INFO L225 Difference]: With dead ends: 7694 [2022-01-18 00:47:46,053 INFO L226 Difference]: Without dead ends: 7381 [2022-01-18 00:47:46,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2022-01-18 00:47:46,054 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 201 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:46,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 1772 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:46,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7381 states. [2022-01-18 00:47:46,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7381 to 6625. [2022-01-18 00:47:46,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6625 states, 6624 states have (on average 2.691123188405797) internal successors, (17826), 6624 states have internal predecessors, (17826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:46,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6625 states to 6625 states and 17826 transitions. [2022-01-18 00:47:46,141 INFO L78 Accepts]: Start accepts. Automaton has 6625 states and 17826 transitions. Word has length 91 [2022-01-18 00:47:46,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:46,142 INFO L470 AbstractCegarLoop]: Abstraction has 6625 states and 17826 transitions. [2022-01-18 00:47:46,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:46,142 INFO L276 IsEmpty]: Start isEmpty. Operand 6625 states and 17826 transitions. [2022-01-18 00:47:46,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:46,149 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:46,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:46,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-18 00:47:46,149 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:46,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:46,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1082313236, now seen corresponding path program 27 times [2022-01-18 00:47:46,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:46,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730458229] [2022-01-18 00:47:46,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:46,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:46,251 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 00:47:46,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:46,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730458229] [2022-01-18 00:47:46,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730458229] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:46,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:46,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:46,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274918493] [2022-01-18 00:47:46,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:46,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:46,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:46,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:46,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:46,253 INFO L87 Difference]: Start difference. First operand 6625 states and 17826 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:46,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:46,461 INFO L93 Difference]: Finished difference Result 7666 states and 20548 transitions. [2022-01-18 00:47:46,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 00:47:46,462 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:46,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:46,471 INFO L225 Difference]: With dead ends: 7666 [2022-01-18 00:47:46,471 INFO L226 Difference]: Without dead ends: 7381 [2022-01-18 00:47:46,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=179, Invalid=633, Unknown=0, NotChecked=0, Total=812 [2022-01-18 00:47:46,472 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 169 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 2095 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 00:47:46,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 2095 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:46,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7381 states. [2022-01-18 00:47:46,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7381 to 6629. [2022-01-18 00:47:46,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6629 states, 6628 states have (on average 2.69055522027761) internal successors, (17833), 6628 states have internal predecessors, (17833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:46,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 17833 transitions. [2022-01-18 00:47:46,552 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 17833 transitions. Word has length 91 [2022-01-18 00:47:46,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:46,553 INFO L470 AbstractCegarLoop]: Abstraction has 6629 states and 17833 transitions. [2022-01-18 00:47:46,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:46,553 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 17833 transitions. [2022-01-18 00:47:46,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:46,560 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:46,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:46,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-18 00:47:46,560 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:46,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:46,560 INFO L85 PathProgramCache]: Analyzing trace with hash 161648858, now seen corresponding path program 28 times [2022-01-18 00:47:46,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:46,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88881052] [2022-01-18 00:47:46,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:46,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:46,660 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 00:47:46,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:46,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88881052] [2022-01-18 00:47:46,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88881052] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:46,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:46,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:46,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414206747] [2022-01-18 00:47:46,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:46,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:46,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:46,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:46,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:46,662 INFO L87 Difference]: Start difference. First operand 6629 states and 17833 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:46,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:46,882 INFO L93 Difference]: Finished difference Result 7586 states and 20336 transitions. [2022-01-18 00:47:46,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 00:47:46,882 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:46,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:46,891 INFO L225 Difference]: With dead ends: 7586 [2022-01-18 00:47:46,891 INFO L226 Difference]: Without dead ends: 7329 [2022-01-18 00:47:46,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2022-01-18 00:47:46,919 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 124 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:46,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 1664 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:46,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7329 states. [2022-01-18 00:47:46,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7329 to 6633. [2022-01-18 00:47:46,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.689987937273824) internal successors, (17840), 6632 states have internal predecessors, (17840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:46,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17840 transitions. [2022-01-18 00:47:46,999 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17840 transitions. Word has length 91 [2022-01-18 00:47:46,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:46,999 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17840 transitions. [2022-01-18 00:47:46,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:46,999 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17840 transitions. [2022-01-18 00:47:47,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:47,006 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:47,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:47,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-18 00:47:47,006 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:47,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:47,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1654470292, now seen corresponding path program 29 times [2022-01-18 00:47:47,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:47,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129415056] [2022-01-18 00:47:47,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:47,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:47,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:47,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:47,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129415056] [2022-01-18 00:47:47,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129415056] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:47,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:47,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:47,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594187038] [2022-01-18 00:47:47,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:47,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:47,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:47,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:47,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:47,136 INFO L87 Difference]: Start difference. First operand 6633 states and 17840 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:47,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:47,370 INFO L93 Difference]: Finished difference Result 7549 states and 20232 transitions. [2022-01-18 00:47:47,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 00:47:47,370 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:47,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:47,378 INFO L225 Difference]: With dead ends: 7549 [2022-01-18 00:47:47,379 INFO L226 Difference]: Without dead ends: 7277 [2022-01-18 00:47:47,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2022-01-18 00:47:47,379 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 126 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:47,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 1903 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:47,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7277 states. [2022-01-18 00:47:47,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7277 to 6621. [2022-01-18 00:47:47,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6621 states, 6620 states have (on average 2.6910876132930515) internal successors, (17815), 6620 states have internal predecessors, (17815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:47,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6621 states to 6621 states and 17815 transitions. [2022-01-18 00:47:47,462 INFO L78 Accepts]: Start accepts. Automaton has 6621 states and 17815 transitions. Word has length 91 [2022-01-18 00:47:47,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:47,462 INFO L470 AbstractCegarLoop]: Abstraction has 6621 states and 17815 transitions. [2022-01-18 00:47:47,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:47,463 INFO L276 IsEmpty]: Start isEmpty. Operand 6621 states and 17815 transitions. [2022-01-18 00:47:47,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:47,469 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:47,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:47,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-18 00:47:47,469 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:47,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:47,470 INFO L85 PathProgramCache]: Analyzing trace with hash 765585018, now seen corresponding path program 30 times [2022-01-18 00:47:47,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:47,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131216710] [2022-01-18 00:47:47,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:47,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:47,547 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 00:47:47,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:47,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131216710] [2022-01-18 00:47:47,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131216710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:47,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:47,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:47,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848499094] [2022-01-18 00:47:47,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:47,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:47,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:47,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:47,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:47,548 INFO L87 Difference]: Start difference. First operand 6621 states and 17815 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:47,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:47,730 INFO L93 Difference]: Finished difference Result 7614 states and 20405 transitions. [2022-01-18 00:47:47,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 00:47:47,730 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:47,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:47,738 INFO L225 Difference]: With dead ends: 7614 [2022-01-18 00:47:47,738 INFO L226 Difference]: Without dead ends: 7329 [2022-01-18 00:47:47,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2022-01-18 00:47:47,740 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 168 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:47,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 1376 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 00:47:47,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7329 states. [2022-01-18 00:47:47,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7329 to 6629. [2022-01-18 00:47:47,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6629 states, 6628 states have (on average 2.69055522027761) internal successors, (17833), 6628 states have internal predecessors, (17833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:47,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 17833 transitions. [2022-01-18 00:47:47,812 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 17833 transitions. Word has length 91 [2022-01-18 00:47:47,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:47,812 INFO L470 AbstractCegarLoop]: Abstraction has 6629 states and 17833 transitions. [2022-01-18 00:47:47,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:47,812 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 17833 transitions. [2022-01-18 00:47:47,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:47,819 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:47,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:47,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-18 00:47:47,819 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:47,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:47,819 INFO L85 PathProgramCache]: Analyzing trace with hash 2009547112, now seen corresponding path program 31 times [2022-01-18 00:47:47,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:47,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127175696] [2022-01-18 00:47:47,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:47,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:47,924 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 00:47:47,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:47,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127175696] [2022-01-18 00:47:47,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127175696] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:47,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:47,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:47,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835495856] [2022-01-18 00:47:47,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:47,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:47,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:47,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:47,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:47,925 INFO L87 Difference]: Start difference. First operand 6629 states and 17833 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:48,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:48,139 INFO L93 Difference]: Finished difference Result 7562 states and 20270 transitions. [2022-01-18 00:47:48,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 00:47:48,139 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:48,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:48,146 INFO L225 Difference]: With dead ends: 7562 [2022-01-18 00:47:48,146 INFO L226 Difference]: Without dead ends: 7305 [2022-01-18 00:47:48,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-01-18 00:47:48,147 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 135 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:48,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 1688 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:48,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7305 states. [2022-01-18 00:47:48,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7305 to 6633. [2022-01-18 00:47:48,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.689987937273824) internal successors, (17840), 6632 states have internal predecessors, (17840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:48,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17840 transitions. [2022-01-18 00:47:48,215 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17840 transitions. Word has length 91 [2022-01-18 00:47:48,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:48,215 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17840 transitions. [2022-01-18 00:47:48,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:48,215 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17840 transitions. [2022-01-18 00:47:48,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:48,221 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:48,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:48,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-18 00:47:48,222 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:48,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:48,222 INFO L85 PathProgramCache]: Analyzing trace with hash -792598750, now seen corresponding path program 32 times [2022-01-18 00:47:48,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:48,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344552265] [2022-01-18 00:47:48,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:48,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:48,304 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 00:47:48,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:48,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344552265] [2022-01-18 00:47:48,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344552265] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:48,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:48,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:48,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185724445] [2022-01-18 00:47:48,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:48,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:48,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:48,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:48,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:48,305 INFO L87 Difference]: Start difference. First operand 6633 states and 17840 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:48,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:48,475 INFO L93 Difference]: Finished difference Result 7533 states and 20188 transitions. [2022-01-18 00:47:48,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 00:47:48,475 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:48,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:48,484 INFO L225 Difference]: With dead ends: 7533 [2022-01-18 00:47:48,484 INFO L226 Difference]: Without dead ends: 7265 [2022-01-18 00:47:48,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2022-01-18 00:47:48,484 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 124 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:48,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 1656 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:48,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7265 states. [2022-01-18 00:47:48,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7265 to 6625. [2022-01-18 00:47:48,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6625 states, 6624 states have (on average 2.6905193236714977) internal successors, (17822), 6624 states have internal predecessors, (17822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:48,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6625 states to 6625 states and 17822 transitions. [2022-01-18 00:47:48,557 INFO L78 Accepts]: Start accepts. Automaton has 6625 states and 17822 transitions. Word has length 91 [2022-01-18 00:47:48,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:48,557 INFO L470 AbstractCegarLoop]: Abstraction has 6625 states and 17822 transitions. [2022-01-18 00:47:48,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:48,557 INFO L276 IsEmpty]: Start isEmpty. Operand 6625 states and 17822 transitions. [2022-01-18 00:47:48,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:48,564 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:48,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:48,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-18 00:47:48,564 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:48,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:48,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1784917320, now seen corresponding path program 33 times [2022-01-18 00:47:48,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:48,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123777329] [2022-01-18 00:47:48,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:48,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:48,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:48,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:48,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123777329] [2022-01-18 00:47:48,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123777329] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:48,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:48,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:48,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959369078] [2022-01-18 00:47:48,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:48,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:48,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:48,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:48,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:48,647 INFO L87 Difference]: Start difference. First operand 6625 states and 17822 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:48,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:48,911 INFO L93 Difference]: Finished difference Result 7601 states and 20354 transitions. [2022-01-18 00:47:48,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 00:47:48,911 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:48,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:48,919 INFO L225 Difference]: With dead ends: 7601 [2022-01-18 00:47:48,919 INFO L226 Difference]: Without dead ends: 7310 [2022-01-18 00:47:48,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=216, Invalid=654, Unknown=0, NotChecked=0, Total=870 [2022-01-18 00:47:48,920 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 180 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1607 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:48,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 1607 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:48,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7310 states. [2022-01-18 00:47:48,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7310 to 6629. [2022-01-18 00:47:48,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6629 states, 6628 states have (on average 2.68995171997586) internal successors, (17829), 6628 states have internal predecessors, (17829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:48,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 17829 transitions. [2022-01-18 00:47:48,992 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 17829 transitions. Word has length 91 [2022-01-18 00:47:48,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:48,992 INFO L470 AbstractCegarLoop]: Abstraction has 6629 states and 17829 transitions. [2022-01-18 00:47:48,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:48,992 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 17829 transitions. [2022-01-18 00:47:48,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:48,999 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:48,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:48,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-18 00:47:48,999 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:48,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:48,999 INFO L85 PathProgramCache]: Analyzing trace with hash 2091868322, now seen corresponding path program 34 times [2022-01-18 00:47:48,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:48,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390197920] [2022-01-18 00:47:48,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:49,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:49,080 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 00:47:49,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:49,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390197920] [2022-01-18 00:47:49,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390197920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:49,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:49,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:49,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346134798] [2022-01-18 00:47:49,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:49,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:49,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:49,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:49,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:49,082 INFO L87 Difference]: Start difference. First operand 6629 states and 17829 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:49,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:49,270 INFO L93 Difference]: Finished difference Result 7522 states and 20156 transitions. [2022-01-18 00:47:49,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 00:47:49,270 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:49,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:49,278 INFO L225 Difference]: With dead ends: 7522 [2022-01-18 00:47:49,278 INFO L226 Difference]: Without dead ends: 7265 [2022-01-18 00:47:49,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-01-18 00:47:49,279 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 142 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:49,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1570 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:49,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7265 states. [2022-01-18 00:47:49,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7265 to 6633. [2022-01-18 00:47:49,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.6893848009650183) internal successors, (17836), 6632 states have internal predecessors, (17836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:49,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17836 transitions. [2022-01-18 00:47:49,351 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17836 transitions. Word has length 91 [2022-01-18 00:47:49,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:49,351 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17836 transitions. [2022-01-18 00:47:49,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:49,351 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17836 transitions. [2022-01-18 00:47:49,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-18 00:47:49,357 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:49,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:49,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-18 00:47:49,358 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:49,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:49,358 INFO L85 PathProgramCache]: Analyzing trace with hash -710277540, now seen corresponding path program 35 times [2022-01-18 00:47:49,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:49,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288571164] [2022-01-18 00:47:49,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:49,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:49,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:49,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:49,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288571164] [2022-01-18 00:47:49,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288571164] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:49,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:49,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 00:47:49,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388753474] [2022-01-18 00:47:49,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:49,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 00:47:49,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:49,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 00:47:49,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 00:47:49,441 INFO L87 Difference]: Start difference. First operand 6633 states and 17836 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:49,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:49,681 INFO L93 Difference]: Finished difference Result 7469 states and 20008 transitions. [2022-01-18 00:47:49,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 00:47:49,681 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-01-18 00:47:49,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:49,689 INFO L225 Difference]: With dead ends: 7469 [2022-01-18 00:47:49,690 INFO L226 Difference]: Without dead ends: 7185 [2022-01-18 00:47:49,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2022-01-18 00:47:49,690 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 144 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1821 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 00:47:49,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1821 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:47:49,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7185 states. [2022-01-18 00:47:49,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7185 to 6597. [2022-01-18 00:47:49,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6597 states, 6596 states have (on average 2.6908732565191027) internal successors, (17749), 6596 states have internal predecessors, (17749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:49,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6597 states to 6597 states and 17749 transitions. [2022-01-18 00:47:49,760 INFO L78 Accepts]: Start accepts. Automaton has 6597 states and 17749 transitions. Word has length 91 [2022-01-18 00:47:49,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:49,760 INFO L470 AbstractCegarLoop]: Abstraction has 6597 states and 17749 transitions. [2022-01-18 00:47:49,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:49,760 INFO L276 IsEmpty]: Start isEmpty. Operand 6597 states and 17749 transitions. [2022-01-18 00:47:49,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-18 00:47:49,766 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:49,766 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, 1, 1] [2022-01-18 00:47:49,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-18 00:47:49,767 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:49,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:49,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1361468159, now seen corresponding path program 1 times [2022-01-18 00:47:49,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:49,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447623887] [2022-01-18 00:47:49,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:49,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:49,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:49,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:49,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:49,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447623887] [2022-01-18 00:47:49,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447623887] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:49,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:49,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 00:47:49,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824221274] [2022-01-18 00:47:49,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:49,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 00:47:49,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:49,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 00:47:49,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 00:47:49,826 INFO L87 Difference]: Start difference. First operand 6597 states and 17749 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:49,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:49,906 INFO L93 Difference]: Finished difference Result 8654 states and 22706 transitions. [2022-01-18 00:47:49,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 00:47:49,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-01-18 00:47:49,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:49,915 INFO L225 Difference]: With dead ends: 8654 [2022-01-18 00:47:49,915 INFO L226 Difference]: Without dead ends: 7956 [2022-01-18 00:47:49,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 00:47:49,915 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 191 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:49,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 593 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 00:47:49,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7956 states. [2022-01-18 00:47:49,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7956 to 5846. [2022-01-18 00:47:49,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5846 states, 5845 states have (on average 2.688280581693755) internal successors, (15713), 5845 states have internal predecessors, (15713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:49,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5846 states to 5846 states and 15713 transitions. [2022-01-18 00:47:49,980 INFO L78 Accepts]: Start accepts. Automaton has 5846 states and 15713 transitions. Word has length 111 [2022-01-18 00:47:49,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:49,980 INFO L470 AbstractCegarLoop]: Abstraction has 5846 states and 15713 transitions. [2022-01-18 00:47:49,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:49,980 INFO L276 IsEmpty]: Start isEmpty. Operand 5846 states and 15713 transitions. [2022-01-18 00:47:49,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-18 00:47:49,985 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:49,985 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, 1, 1] [2022-01-18 00:47:49,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-18 00:47:49,986 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:49,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:49,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1203312979, now seen corresponding path program 1 times [2022-01-18 00:47:49,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:49,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28754558] [2022-01-18 00:47:49,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:49,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:50,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:50,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:50,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28754558] [2022-01-18 00:47:50,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28754558] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:50,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:50,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 00:47:50,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655768108] [2022-01-18 00:47:50,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:50,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 00:47:50,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:50,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 00:47:50,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 00:47:50,076 INFO L87 Difference]: Start difference. First operand 5846 states and 15713 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:50,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:50,107 INFO L93 Difference]: Finished difference Result 5563 states and 14662 transitions. [2022-01-18 00:47:50,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 00:47:50,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-01-18 00:47:50,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:50,112 INFO L225 Difference]: With dead ends: 5563 [2022-01-18 00:47:50,112 INFO L226 Difference]: Without dead ends: 5563 [2022-01-18 00:47:50,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-18 00:47:50,113 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 162 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:50,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 168 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 00:47:50,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5563 states. [2022-01-18 00:47:50,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5563 to 5563. [2022-01-18 00:47:50,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5563 states, 5562 states have (on average 2.6361021215390146) internal successors, (14662), 5562 states have internal predecessors, (14662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:50,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5563 states to 5563 states and 14662 transitions. [2022-01-18 00:47:50,163 INFO L78 Accepts]: Start accepts. Automaton has 5563 states and 14662 transitions. Word has length 111 [2022-01-18 00:47:50,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:50,163 INFO L470 AbstractCegarLoop]: Abstraction has 5563 states and 14662 transitions. [2022-01-18 00:47:50,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:50,163 INFO L276 IsEmpty]: Start isEmpty. Operand 5563 states and 14662 transitions. [2022-01-18 00:47:50,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:47:50,168 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:50,168 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:50,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-18 00:47:50,168 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:50,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:50,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1862970063, now seen corresponding path program 1 times [2022-01-18 00:47:50,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:50,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204319366] [2022-01-18 00:47:50,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:50,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:47:50,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:47:50,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:47:50,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204319366] [2022-01-18 00:47:50,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204319366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:47:50,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:47:50,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:47:50,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562092981] [2022-01-18 00:47:50,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:47:50,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:47:50,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:47:50,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:47:50,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:47:50,682 INFO L87 Difference]: Start difference. First operand 5563 states and 14662 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:59,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:47:59,181 INFO L93 Difference]: Finished difference Result 6672 states and 17462 transitions. [2022-01-18 00:47:59,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-01-18 00:47:59,181 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:47:59,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:47:59,187 INFO L225 Difference]: With dead ends: 6672 [2022-01-18 00:47:59,187 INFO L226 Difference]: Without dead ends: 5502 [2022-01-18 00:47:59,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2814 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=3221, Invalid=8769, Unknown=0, NotChecked=0, Total=11990 [2022-01-18 00:47:59,188 INFO L933 BasicCegarLoop]: 625 mSDtfsCounter, 1979 mSDsluCounter, 10217 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 10560 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 00:47:59,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1979 Valid, 10560 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 00:47:59,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5502 states. [2022-01-18 00:47:59,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5502 to 5366. [2022-01-18 00:47:59,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5366 states, 5365 states have (on average 2.639888164026095) internal successors, (14163), 5365 states have internal predecessors, (14163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:59,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5366 states to 5366 states and 14163 transitions. [2022-01-18 00:47:59,236 INFO L78 Accepts]: Start accepts. Automaton has 5366 states and 14163 transitions. Word has length 137 [2022-01-18 00:47:59,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:47:59,236 INFO L470 AbstractCegarLoop]: Abstraction has 5366 states and 14163 transitions. [2022-01-18 00:47:59,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:47:59,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5366 states and 14163 transitions. [2022-01-18 00:47:59,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:47:59,241 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:47:59,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:47:59,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-18 00:47:59,241 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:47:59,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:47:59,241 INFO L85 PathProgramCache]: Analyzing trace with hash 298409985, now seen corresponding path program 2 times [2022-01-18 00:47:59,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:47:59,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417837003] [2022-01-18 00:47:59,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:47:59,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:47:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:48:00,126 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 00:48:00,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:48:00,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417837003] [2022-01-18 00:48:00,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417837003] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:48:00,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:48:00,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:48:00,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130431829] [2022-01-18 00:48:00,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:48:00,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:48:00,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:48:00,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:48:00,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:48:00,128 INFO L87 Difference]: Start difference. First operand 5366 states and 14163 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:06,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:48:06,538 INFO L93 Difference]: Finished difference Result 7488 states and 19502 transitions. [2022-01-18 00:48:06,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-18 00:48:06,538 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:48:06,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:48:06,547 INFO L225 Difference]: With dead ends: 7488 [2022-01-18 00:48:06,547 INFO L226 Difference]: Without dead ends: 6515 [2022-01-18 00:48:06,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2663 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=2903, Invalid=8227, Unknown=0, NotChecked=0, Total=11130 [2022-01-18 00:48:06,549 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 1899 mSDsluCounter, 9797 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 10157 SdHoareTripleChecker+Invalid, 1888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:48:06,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1899 Valid, 10157 Invalid, 1888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:48:06,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6515 states. [2022-01-18 00:48:06,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6515 to 5378. [2022-01-18 00:48:06,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 2.637902175934536) internal successors, (14184), 5377 states have internal predecessors, (14184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:06,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 14184 transitions. [2022-01-18 00:48:06,614 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 14184 transitions. Word has length 137 [2022-01-18 00:48:06,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:48:06,614 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 14184 transitions. [2022-01-18 00:48:06,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:06,614 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 14184 transitions. [2022-01-18 00:48:06,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:48:06,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:48:06,620 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:48:06,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-18 00:48:06,620 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:48:06,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:48:06,620 INFO L85 PathProgramCache]: Analyzing trace with hash 69628501, now seen corresponding path program 3 times [2022-01-18 00:48:06,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:48:06,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783895951] [2022-01-18 00:48:06,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:48:06,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:48:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:48:07,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:48:07,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:48:07,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783895951] [2022-01-18 00:48:07,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783895951] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:48:07,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:48:07,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:48:07,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083243613] [2022-01-18 00:48:07,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:48:07,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:48:07,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:48:07,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:48:07,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:48:07,216 INFO L87 Difference]: Start difference. First operand 5378 states and 14184 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:22,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:48:22,185 INFO L93 Difference]: Finished difference Result 7042 states and 18372 transitions. [2022-01-18 00:48:22,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-18 00:48:22,185 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:48:22,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:48:22,192 INFO L225 Difference]: With dead ends: 7042 [2022-01-18 00:48:22,193 INFO L226 Difference]: Without dead ends: 6193 [2022-01-18 00:48:22,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2182 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=2321, Invalid=7185, Unknown=0, NotChecked=0, Total=9506 [2022-01-18 00:48:22,199 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 1497 mSDsluCounter, 9220 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 9588 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 00:48:22,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1497 Valid, 9588 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 00:48:22,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6193 states. [2022-01-18 00:48:22,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6193 to 5434. [2022-01-18 00:48:22,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 5433 states have (on average 2.6294864715626725) internal successors, (14286), 5433 states have internal predecessors, (14286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:22,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 14286 transitions. [2022-01-18 00:48:22,253 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 14286 transitions. Word has length 137 [2022-01-18 00:48:22,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:48:22,253 INFO L470 AbstractCegarLoop]: Abstraction has 5434 states and 14286 transitions. [2022-01-18 00:48:22,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:22,254 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 14286 transitions. [2022-01-18 00:48:22,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:48:22,258 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:48:22,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:48:22,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-18 00:48:22,259 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:48:22,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:48:22,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1486434563, now seen corresponding path program 4 times [2022-01-18 00:48:22,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:48:22,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706642392] [2022-01-18 00:48:22,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:48:22,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:48:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:48:22,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:48:22,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:48:22,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706642392] [2022-01-18 00:48:22,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706642392] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:48:22,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:48:22,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:48:22,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905666506] [2022-01-18 00:48:22,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:48:22,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:48:22,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:48:22,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:48:22,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:48:22,866 INFO L87 Difference]: Start difference. First operand 5434 states and 14286 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:27,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:48:27,732 INFO L93 Difference]: Finished difference Result 6608 states and 17214 transitions. [2022-01-18 00:48:27,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 00:48:27,732 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:48:27,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:48:27,739 INFO L225 Difference]: With dead ends: 6608 [2022-01-18 00:48:27,740 INFO L226 Difference]: Without dead ends: 6162 [2022-01-18 00:48:27,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1910 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=2055, Invalid=6687, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 00:48:27,741 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 1393 mSDsluCounter, 10021 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 10346 SdHoareTripleChecker+Invalid, 2005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:48:27,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1393 Valid, 10346 Invalid, 2005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:48:27,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6162 states. [2022-01-18 00:48:27,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6162 to 5438. [2022-01-18 00:48:27,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5437 states have (on average 2.6288394335111276) internal successors, (14293), 5437 states have internal predecessors, (14293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:27,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 14293 transitions. [2022-01-18 00:48:27,794 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 14293 transitions. Word has length 137 [2022-01-18 00:48:27,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:48:27,794 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 14293 transitions. [2022-01-18 00:48:27,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:27,795 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 14293 transitions. [2022-01-18 00:48:27,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:48:27,799 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:48:27,799 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] [2022-01-18 00:48:27,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-18 00:48:27,799 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:48:27,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:48:27,801 INFO L85 PathProgramCache]: Analyzing trace with hash -897574149, now seen corresponding path program 5 times [2022-01-18 00:48:27,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:48:27,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181665679] [2022-01-18 00:48:27,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:48:27,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:48:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:48:28,212 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 00:48:28,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:48:28,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181665679] [2022-01-18 00:48:28,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181665679] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:48:28,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:48:28,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:48:28,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665244964] [2022-01-18 00:48:28,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:48:28,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:48:28,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:48:28,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:48:28,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:48:28,213 INFO L87 Difference]: Start difference. First operand 5438 states and 14293 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:33,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:48:33,156 INFO L93 Difference]: Finished difference Result 6370 states and 16667 transitions. [2022-01-18 00:48:33,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 00:48:33,156 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:48:33,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:48:33,163 INFO L225 Difference]: With dead ends: 6370 [2022-01-18 00:48:33,163 INFO L226 Difference]: Without dead ends: 5955 [2022-01-18 00:48:33,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1701 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1806, Invalid=6204, Unknown=0, NotChecked=0, Total=8010 [2022-01-18 00:48:33,166 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 1232 mSDsluCounter, 9638 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 9977 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:48:33,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1232 Valid, 9977 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:48:33,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5955 states. [2022-01-18 00:48:33,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5955 to 5450. [2022-01-18 00:48:33,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5449 states have (on average 2.6269040190860706) internal successors, (14314), 5449 states have internal predecessors, (14314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:33,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14314 transitions. [2022-01-18 00:48:33,282 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14314 transitions. Word has length 137 [2022-01-18 00:48:33,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:48:33,282 INFO L470 AbstractCegarLoop]: Abstraction has 5450 states and 14314 transitions. [2022-01-18 00:48:33,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:33,282 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14314 transitions. [2022-01-18 00:48:33,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:48:33,287 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:48:33,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:48:33,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-18 00:48:33,288 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:48:33,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:48:33,289 INFO L85 PathProgramCache]: Analyzing trace with hash 933751745, now seen corresponding path program 6 times [2022-01-18 00:48:33,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:48:33,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025936017] [2022-01-18 00:48:33,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:48:33,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:48:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:48:33,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:48:33,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:48:33,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025936017] [2022-01-18 00:48:33,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025936017] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:48:33,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:48:33,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:48:33,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482449804] [2022-01-18 00:48:33,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:48:33,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:48:33,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:48:33,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:48:33,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:48:33,685 INFO L87 Difference]: Start difference. First operand 5450 states and 14314 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:37,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:48:37,663 INFO L93 Difference]: Finished difference Result 6215 states and 16260 transitions. [2022-01-18 00:48:37,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 00:48:37,663 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:48:37,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:48:37,671 INFO L225 Difference]: With dead ends: 6215 [2022-01-18 00:48:37,671 INFO L226 Difference]: Without dead ends: 5893 [2022-01-18 00:48:37,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1296 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1478, Invalid=5164, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 00:48:37,672 INFO L933 BasicCegarLoop]: 560 mSDtfsCounter, 1063 mSDsluCounter, 10312 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 10630 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:48:37,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1063 Valid, 10630 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:48:37,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5893 states. [2022-01-18 00:48:37,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5893 to 5454. [2022-01-18 00:48:37,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 5453 states have (on average 2.6262607738859343) internal successors, (14321), 5453 states have internal predecessors, (14321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:37,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 14321 transitions. [2022-01-18 00:48:37,733 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 14321 transitions. Word has length 137 [2022-01-18 00:48:37,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:48:37,733 INFO L470 AbstractCegarLoop]: Abstraction has 5454 states and 14321 transitions. [2022-01-18 00:48:37,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:37,733 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 14321 transitions. [2022-01-18 00:48:37,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:48:37,738 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:48:37,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:48:37,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-18 00:48:37,738 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:48:37,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:48:37,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1229354581, now seen corresponding path program 7 times [2022-01-18 00:48:37,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:48:37,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220447484] [2022-01-18 00:48:37,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:48:37,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:48:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:48:38,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:48:38,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:48:38,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220447484] [2022-01-18 00:48:38,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220447484] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:48:38,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:48:38,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:48:38,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158129849] [2022-01-18 00:48:38,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:48:38,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:48:38,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:48:38,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:48:38,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:48:38,257 INFO L87 Difference]: Start difference. First operand 5454 states and 14321 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:41,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:48:41,777 INFO L93 Difference]: Finished difference Result 6122 states and 16019 transitions. [2022-01-18 00:48:41,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 00:48:41,777 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:48:41,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:48:41,784 INFO L225 Difference]: With dead ends: 6122 [2022-01-18 00:48:41,784 INFO L226 Difference]: Without dead ends: 5831 [2022-01-18 00:48:41,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 938 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1201, Invalid=4201, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 00:48:41,785 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 1027 mSDsluCounter, 9416 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 9768 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:48:41,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1027 Valid, 9768 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1889 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:48:41,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5831 states. [2022-01-18 00:48:41,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5831 to 5458. [2022-01-18 00:48:41,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.6256184716877407) internal successors, (14328), 5457 states have internal predecessors, (14328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:41,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14328 transitions. [2022-01-18 00:48:41,837 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14328 transitions. Word has length 137 [2022-01-18 00:48:41,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:48:41,837 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14328 transitions. [2022-01-18 00:48:41,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:41,837 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14328 transitions. [2022-01-18 00:48:41,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:48:41,841 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:48:41,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:48:41,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-01-18 00:48:41,842 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:48:41,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:48:41,842 INFO L85 PathProgramCache]: Analyzing trace with hash 811172927, now seen corresponding path program 8 times [2022-01-18 00:48:41,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:48:41,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662142114] [2022-01-18 00:48:41,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:48:41,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:48:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:48:42,404 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 00:48:42,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:48:42,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662142114] [2022-01-18 00:48:42,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662142114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:48:42,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:48:42,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:48:42,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798202084] [2022-01-18 00:48:42,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:48:42,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:48:42,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:48:42,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:48:42,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:48:42,405 INFO L87 Difference]: Start difference. First operand 5458 states and 14328 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:50,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:48:50,794 INFO L93 Difference]: Finished difference Result 5967 states and 15620 transitions. [2022-01-18 00:48:50,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 00:48:50,795 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:48:50,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:48:50,801 INFO L225 Difference]: With dead ends: 5967 [2022-01-18 00:48:50,802 INFO L226 Difference]: Without dead ends: 5710 [2022-01-18 00:48:50,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=955, Invalid=2827, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 00:48:50,803 INFO L933 BasicCegarLoop]: 537 mSDtfsCounter, 996 mSDsluCounter, 8084 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 8473 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:48:50,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [996 Valid, 8473 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1637 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:48:50,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5710 states. [2022-01-18 00:48:50,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5710 to 5462. [2022-01-18 00:48:50,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.624977110419337) internal successors, (14335), 5461 states have internal predecessors, (14335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:50,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14335 transitions. [2022-01-18 00:48:50,855 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14335 transitions. Word has length 137 [2022-01-18 00:48:50,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:48:50,855 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14335 transitions. [2022-01-18 00:48:50,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:50,855 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14335 transitions. [2022-01-18 00:48:50,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:48:50,860 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:48:50,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:48:50,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-01-18 00:48:50,860 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:48:50,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:48:50,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1990972935, now seen corresponding path program 9 times [2022-01-18 00:48:50,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:48:50,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548999334] [2022-01-18 00:48:50,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:48:50,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:48:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:48:51,353 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 00:48:51,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:48:51,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548999334] [2022-01-18 00:48:51,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548999334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:48:51,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:48:51,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:48:51,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476949139] [2022-01-18 00:48:51,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:48:51,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:48:51,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:48:51,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:48:51,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:48:51,354 INFO L87 Difference]: Start difference. First operand 5462 states and 14335 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:54,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:48:54,172 INFO L93 Difference]: Finished difference Result 5970 states and 15622 transitions. [2022-01-18 00:48:54,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:48:54,172 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:48:54,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:48:54,179 INFO L225 Difference]: With dead ends: 5970 [2022-01-18 00:48:54,179 INFO L226 Difference]: Without dead ends: 5630 [2022-01-18 00:48:54,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=972, Invalid=3318, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:48:54,180 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 964 mSDsluCounter, 9519 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 9873 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:48:54,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [964 Valid, 9873 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:48:54,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5630 states. [2022-01-18 00:48:54,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5630 to 5382. [2022-01-18 00:48:54,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5382 states, 5381 states have (on average 2.6372421482995727) internal successors, (14191), 5381 states have internal predecessors, (14191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:54,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 14191 transitions. [2022-01-18 00:48:54,231 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 14191 transitions. Word has length 137 [2022-01-18 00:48:54,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:48:54,231 INFO L470 AbstractCegarLoop]: Abstraction has 5382 states and 14191 transitions. [2022-01-18 00:48:54,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:48:54,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 14191 transitions. [2022-01-18 00:48:54,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:48:54,236 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:48:54,236 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:48:54,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-01-18 00:48:54,236 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:48:54,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:48:54,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1791231757, now seen corresponding path program 10 times [2022-01-18 00:48:54,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:48:54,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556289530] [2022-01-18 00:48:54,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:48:54,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:48:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:48:54,795 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 00:48:54,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:48:54,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556289530] [2022-01-18 00:48:54,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556289530] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:48:54,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:48:54,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:48:54,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773546095] [2022-01-18 00:48:54,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:48:54,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:48:54,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:48:54,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:48:54,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:48:54,796 INFO L87 Difference]: Start difference. First operand 5382 states and 14191 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:11,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:49:11,321 INFO L93 Difference]: Finished difference Result 6398 states and 16754 transitions. [2022-01-18 00:49:11,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 00:49:11,322 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:49:11,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:49:11,327 INFO L225 Difference]: With dead ends: 6398 [2022-01-18 00:49:11,327 INFO L226 Difference]: Without dead ends: 5476 [2022-01-18 00:49:11,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2423 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=2603, Invalid=7699, Unknown=0, NotChecked=0, Total=10302 [2022-01-18 00:49:11,328 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 1484 mSDsluCounter, 9668 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 10022 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:49:11,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1484 Valid, 10022 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:49:11,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5476 states. [2022-01-18 00:49:11,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5476 to 5340. [2022-01-18 00:49:11,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5340 states, 5339 states have (on average 2.640194793032403) internal successors, (14096), 5339 states have internal predecessors, (14096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:11,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5340 states to 5340 states and 14096 transitions. [2022-01-18 00:49:11,379 INFO L78 Accepts]: Start accepts. Automaton has 5340 states and 14096 transitions. Word has length 137 [2022-01-18 00:49:11,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:49:11,380 INFO L470 AbstractCegarLoop]: Abstraction has 5340 states and 14096 transitions. [2022-01-18 00:49:11,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:11,380 INFO L276 IsEmpty]: Start isEmpty. Operand 5340 states and 14096 transitions. [2022-01-18 00:49:11,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:49:11,385 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:49:11,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:49:11,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-01-18 00:49:11,389 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:49:11,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:49:11,389 INFO L85 PathProgramCache]: Analyzing trace with hash 66333161, now seen corresponding path program 11 times [2022-01-18 00:49:11,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:49:11,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743511503] [2022-01-18 00:49:11,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:49:11,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:49:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:49:11,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:49:11,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:49:11,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743511503] [2022-01-18 00:49:11,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743511503] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:49:11,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:49:11,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:49:11,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626438935] [2022-01-18 00:49:11,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:49:11,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:49:11,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:49:11,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:49:11,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:49:11,762 INFO L87 Difference]: Start difference. First operand 5340 states and 14096 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:18,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:49:18,744 INFO L93 Difference]: Finished difference Result 7586 states and 19772 transitions. [2022-01-18 00:49:18,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-18 00:49:18,744 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:49:18,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:49:18,752 INFO L225 Difference]: With dead ends: 7586 [2022-01-18 00:49:18,752 INFO L226 Difference]: Without dead ends: 6613 [2022-01-18 00:49:18,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2644 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=2926, Invalid=8204, Unknown=0, NotChecked=0, Total=11130 [2022-01-18 00:49:18,754 INFO L933 BasicCegarLoop]: 597 mSDtfsCounter, 2029 mSDsluCounter, 9408 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 9780 SdHoareTripleChecker+Invalid, 1847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:49:18,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2029 Valid, 9780 Invalid, 1847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1844 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:49:18,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6613 states. [2022-01-18 00:49:18,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6613 to 5364. [2022-01-18 00:49:18,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5364 states, 5363 states have (on average 2.638448629498415) internal successors, (14150), 5363 states have internal predecessors, (14150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:18,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5364 states to 5364 states and 14150 transitions. [2022-01-18 00:49:18,809 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 14150 transitions. Word has length 137 [2022-01-18 00:49:18,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:49:18,809 INFO L470 AbstractCegarLoop]: Abstraction has 5364 states and 14150 transitions. [2022-01-18 00:49:18,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:18,809 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 14150 transitions. [2022-01-18 00:49:18,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:49:18,813 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:49:18,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:49:18,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-01-18 00:49:18,814 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:49:18,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:49:18,814 INFO L85 PathProgramCache]: Analyzing trace with hash -162448323, now seen corresponding path program 12 times [2022-01-18 00:49:18,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:49:18,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481739772] [2022-01-18 00:49:18,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:49:18,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:49:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:49:19,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:49:19,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:49:19,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481739772] [2022-01-18 00:49:19,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481739772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:49:19,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:49:19,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:49:19,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388117976] [2022-01-18 00:49:19,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:49:19,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:49:19,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:49:19,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:49:19,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:49:19,302 INFO L87 Difference]: Start difference. First operand 5364 states and 14150 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:23,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:49:23,911 INFO L93 Difference]: Finished difference Result 7476 states and 19554 transitions. [2022-01-18 00:49:23,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-18 00:49:23,911 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:49:23,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:49:23,919 INFO L225 Difference]: With dead ends: 7476 [2022-01-18 00:49:23,919 INFO L226 Difference]: Without dead ends: 6627 [2022-01-18 00:49:23,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2165 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=2340, Invalid=7166, Unknown=0, NotChecked=0, Total=9506 [2022-01-18 00:49:23,920 INFO L933 BasicCegarLoop]: 587 mSDtfsCounter, 1632 mSDsluCounter, 10424 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 10751 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:49:23,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1632 Valid, 10751 Invalid, 2100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:49:23,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6627 states. [2022-01-18 00:49:23,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6627 to 5420. [2022-01-18 00:49:23,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5420 states, 5419 states have (on average 2.630005536076767) internal successors, (14252), 5419 states have internal predecessors, (14252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:23,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5420 states to 5420 states and 14252 transitions. [2022-01-18 00:49:23,976 INFO L78 Accepts]: Start accepts. Automaton has 5420 states and 14252 transitions. Word has length 137 [2022-01-18 00:49:23,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:49:23,976 INFO L470 AbstractCegarLoop]: Abstraction has 5420 states and 14252 transitions. [2022-01-18 00:49:23,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:23,977 INFO L276 IsEmpty]: Start isEmpty. Operand 5420 states and 14252 transitions. [2022-01-18 00:49:23,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:49:23,981 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:49:23,981 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:49:23,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-01-18 00:49:23,981 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:49:23,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:49:23,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1718511387, now seen corresponding path program 13 times [2022-01-18 00:49:23,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:49:23,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834470830] [2022-01-18 00:49:23,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:49:23,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:49:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:49:24,615 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 00:49:24,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:49:24,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834470830] [2022-01-18 00:49:24,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834470830] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:49:24,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:49:24,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:49:24,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527761481] [2022-01-18 00:49:24,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:49:24,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:49:24,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:49:24,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:49:24,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:49:24,616 INFO L87 Difference]: Start difference. First operand 5420 states and 14252 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:29,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:49:29,960 INFO L93 Difference]: Finished difference Result 7042 states and 18396 transitions. [2022-01-18 00:49:29,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 00:49:29,961 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:49:29,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:49:29,969 INFO L225 Difference]: With dead ends: 7042 [2022-01-18 00:49:29,969 INFO L226 Difference]: Without dead ends: 6596 [2022-01-18 00:49:29,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1894 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=2072, Invalid=6670, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 00:49:29,970 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 1556 mSDsluCounter, 9588 mSDsCounter, 0 mSdLazyCounter, 1936 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 9929 SdHoareTripleChecker+Invalid, 1939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:49:29,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1556 Valid, 9929 Invalid, 1939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1936 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:49:29,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6596 states. [2022-01-18 00:49:30,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6596 to 5424. [2022-01-18 00:49:30,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5424 states, 5423 states have (on average 2.629356444772266) internal successors, (14259), 5423 states have internal predecessors, (14259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:30,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5424 states to 5424 states and 14259 transitions. [2022-01-18 00:49:30,027 INFO L78 Accepts]: Start accepts. Automaton has 5424 states and 14259 transitions. Word has length 137 [2022-01-18 00:49:30,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:49:30,027 INFO L470 AbstractCegarLoop]: Abstraction has 5424 states and 14259 transitions. [2022-01-18 00:49:30,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:30,027 INFO L276 IsEmpty]: Start isEmpty. Operand 5424 states and 14259 transitions. [2022-01-18 00:49:30,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:49:30,032 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:49:30,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:49:30,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-01-18 00:49:30,032 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:49:30,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:49:30,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1129650973, now seen corresponding path program 14 times [2022-01-18 00:49:30,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:49:30,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506477475] [2022-01-18 00:49:30,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:49:30,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:49:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:49:30,582 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 00:49:30,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:49:30,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506477475] [2022-01-18 00:49:30,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506477475] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:49:30,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:49:30,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:49:30,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909040553] [2022-01-18 00:49:30,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:49:30,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:49:30,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:49:30,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:49:30,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:49:30,583 INFO L87 Difference]: Start difference. First operand 5424 states and 14259 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:36,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:49:36,551 INFO L93 Difference]: Finished difference Result 6804 states and 17849 transitions. [2022-01-18 00:49:36,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 00:49:36,552 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:49:36,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:49:36,560 INFO L225 Difference]: With dead ends: 6804 [2022-01-18 00:49:36,560 INFO L226 Difference]: Without dead ends: 6389 [2022-01-18 00:49:36,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1754 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1824, Invalid=6186, Unknown=0, NotChecked=0, Total=8010 [2022-01-18 00:49:36,561 INFO L933 BasicCegarLoop]: 561 mSDtfsCounter, 1169 mSDsluCounter, 8575 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 8950 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:49:36,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1169 Valid, 8950 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:49:36,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6389 states. [2022-01-18 00:49:36,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6389 to 5436. [2022-01-18 00:49:36,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.6274149034038636) internal successors, (14280), 5435 states have internal predecessors, (14280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:36,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14280 transitions. [2022-01-18 00:49:36,615 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14280 transitions. Word has length 137 [2022-01-18 00:49:36,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:49:36,616 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14280 transitions. [2022-01-18 00:49:36,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:36,616 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14280 transitions. [2022-01-18 00:49:36,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:49:36,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:49:36,620 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:49:36,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-01-18 00:49:36,621 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:49:36,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:49:36,621 INFO L85 PathProgramCache]: Analyzing trace with hash 701674921, now seen corresponding path program 15 times [2022-01-18 00:49:36,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:49:36,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026199861] [2022-01-18 00:49:36,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:49:36,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:49:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:49:37,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:49:37,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:49:37,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026199861] [2022-01-18 00:49:37,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026199861] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:49:37,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:49:37,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:49:37,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703649789] [2022-01-18 00:49:37,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:49:37,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:49:37,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:49:37,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:49:37,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:49:37,016 INFO L87 Difference]: Start difference. First operand 5436 states and 14280 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:40,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:49:40,670 INFO L93 Difference]: Finished difference Result 6649 states and 17442 transitions. [2022-01-18 00:49:40,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 00:49:40,670 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:49:40,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:49:40,678 INFO L225 Difference]: With dead ends: 6649 [2022-01-18 00:49:40,678 INFO L226 Difference]: Without dead ends: 6327 [2022-01-18 00:49:40,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1343 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1492, Invalid=5150, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 00:49:40,685 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 1095 mSDsluCounter, 8911 mSDsCounter, 0 mSdLazyCounter, 1824 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 9275 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:49:40,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1095 Valid, 9275 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1824 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:49:40,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6327 states. [2022-01-18 00:49:40,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6327 to 5440. [2022-01-18 00:49:40,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6267696267696268) internal successors, (14287), 5439 states have internal predecessors, (14287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:40,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14287 transitions. [2022-01-18 00:49:40,740 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14287 transitions. Word has length 137 [2022-01-18 00:49:40,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:49:40,740 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14287 transitions. [2022-01-18 00:49:40,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:40,740 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14287 transitions. [2022-01-18 00:49:40,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:49:40,744 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:49:40,745 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:49:40,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-01-18 00:49:40,745 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:49:40,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:49:40,745 INFO L85 PathProgramCache]: Analyzing trace with hash 997277757, now seen corresponding path program 16 times [2022-01-18 00:49:40,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:49:40,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359109036] [2022-01-18 00:49:40,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:49:40,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:49:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:49:41,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:49:41,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:49:41,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359109036] [2022-01-18 00:49:41,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359109036] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:49:41,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:49:41,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:49:41,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966686792] [2022-01-18 00:49:41,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:49:41,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:49:41,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:49:41,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:49:41,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:49:41,249 INFO L87 Difference]: Start difference. First operand 5440 states and 14287 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:44,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:49:44,669 INFO L93 Difference]: Finished difference Result 6556 states and 17201 transitions. [2022-01-18 00:49:44,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 00:49:44,670 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:49:44,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:49:44,678 INFO L225 Difference]: With dead ends: 6556 [2022-01-18 00:49:44,678 INFO L226 Difference]: Without dead ends: 6265 [2022-01-18 00:49:44,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 927 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1208, Invalid=4194, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 00:49:44,679 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 1019 mSDsluCounter, 9315 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 9669 SdHoareTripleChecker+Invalid, 1899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:49:44,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1019 Valid, 9669 Invalid, 1899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:49:44,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6265 states. [2022-01-18 00:49:44,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6265 to 5444. [2022-01-18 00:49:44,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5444 states, 5443 states have (on average 2.6261252985485943) internal successors, (14294), 5443 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:44,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 14294 transitions. [2022-01-18 00:49:44,742 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 14294 transitions. Word has length 137 [2022-01-18 00:49:44,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:49:44,742 INFO L470 AbstractCegarLoop]: Abstraction has 5444 states and 14294 transitions. [2022-01-18 00:49:44,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:44,742 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 14294 transitions. [2022-01-18 00:49:44,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:49:44,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:49:44,747 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:49:44,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-01-18 00:49:44,747 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:49:44,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:49:44,748 INFO L85 PathProgramCache]: Analyzing trace with hash 579096103, now seen corresponding path program 17 times [2022-01-18 00:49:44,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:49:44,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715697997] [2022-01-18 00:49:44,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:49:44,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:49:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:49:45,275 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 00:49:45,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:49:45,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715697997] [2022-01-18 00:49:45,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715697997] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:49:45,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:49:45,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:49:45,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582263864] [2022-01-18 00:49:45,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:49:45,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:49:45,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:49:45,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:49:45,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:49:45,277 INFO L87 Difference]: Start difference. First operand 5444 states and 14294 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:48,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:49:48,610 INFO L93 Difference]: Finished difference Result 6401 states and 16802 transitions. [2022-01-18 00:49:48,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 00:49:48,611 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:49:48,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:49:48,619 INFO L225 Difference]: With dead ends: 6401 [2022-01-18 00:49:48,619 INFO L226 Difference]: Without dead ends: 6144 [2022-01-18 00:49:48,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=954, Invalid=2828, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 00:49:48,619 INFO L933 BasicCegarLoop]: 529 mSDtfsCounter, 977 mSDsluCounter, 8956 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 9324 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:49:48,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 9324 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:49:48,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6144 states. [2022-01-18 00:49:48,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6144 to 5448. [2022-01-18 00:49:48,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5448 states, 5447 states have (on average 2.625481916651368) internal successors, (14301), 5447 states have internal predecessors, (14301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:48,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5448 states to 5448 states and 14301 transitions. [2022-01-18 00:49:48,676 INFO L78 Accepts]: Start accepts. Automaton has 5448 states and 14301 transitions. Word has length 137 [2022-01-18 00:49:48,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:49:48,676 INFO L470 AbstractCegarLoop]: Abstraction has 5448 states and 14301 transitions. [2022-01-18 00:49:48,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:48,676 INFO L276 IsEmpty]: Start isEmpty. Operand 5448 states and 14301 transitions. [2022-01-18 00:49:48,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:49:48,681 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:49:48,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:49:48,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-01-18 00:49:48,682 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:49:48,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:49:48,682 INFO L85 PathProgramCache]: Analyzing trace with hash 2071917537, now seen corresponding path program 18 times [2022-01-18 00:49:48,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:49:48,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922109355] [2022-01-18 00:49:48,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:49:48,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:49:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:49:49,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:49:49,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:49:49,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922109355] [2022-01-18 00:49:49,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922109355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:49:49,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:49:49,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:49:49,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172859201] [2022-01-18 00:49:49,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:49:49,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:49:49,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:49:49,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:49:49,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:49:49,216 INFO L87 Difference]: Start difference. First operand 5448 states and 14301 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:52,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:49:52,629 INFO L93 Difference]: Finished difference Result 6404 states and 16804 transitions. [2022-01-18 00:49:52,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:49:52,630 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:49:52,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:49:52,636 INFO L225 Difference]: With dead ends: 6404 [2022-01-18 00:49:52,636 INFO L226 Difference]: Without dead ends: 6064 [2022-01-18 00:49:52,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=978, Invalid=3312, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:49:52,637 INFO L933 BasicCegarLoop]: 537 mSDtfsCounter, 1038 mSDsluCounter, 9056 mSDsCounter, 0 mSdLazyCounter, 1839 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 9425 SdHoareTripleChecker+Invalid, 1842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:49:52,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1038 Valid, 9425 Invalid, 1842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1839 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:49:52,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6064 states. [2022-01-18 00:49:52,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6064 to 5368. [2022-01-18 00:49:52,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5368 states, 5367 states have (on average 2.6377864728898825) internal successors, (14157), 5367 states have internal predecessors, (14157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:52,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5368 states to 5368 states and 14157 transitions. [2022-01-18 00:49:52,694 INFO L78 Accepts]: Start accepts. Automaton has 5368 states and 14157 transitions. Word has length 137 [2022-01-18 00:49:52,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:49:52,694 INFO L470 AbstractCegarLoop]: Abstraction has 5368 states and 14157 transitions. [2022-01-18 00:49:52,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:52,694 INFO L276 IsEmpty]: Start isEmpty. Operand 5368 states and 14157 transitions. [2022-01-18 00:49:52,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:49:52,700 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:49:52,700 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:49:52,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-01-18 00:49:52,700 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:49:52,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:49:52,700 INFO L85 PathProgramCache]: Analyzing trace with hash -2023308581, now seen corresponding path program 19 times [2022-01-18 00:49:52,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:49:52,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848149900] [2022-01-18 00:49:52,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:49:52,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:49:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:49:53,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:49:53,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:49:53,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848149900] [2022-01-18 00:49:53,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848149900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:49:53,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:49:53,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:49:53,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940219659] [2022-01-18 00:49:53,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:49:53,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:49:53,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:49:53,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:49:53,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:49:53,183 INFO L87 Difference]: Start difference. First operand 5368 states and 14157 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:58,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:49:58,165 INFO L93 Difference]: Finished difference Result 6832 states and 17936 transitions. [2022-01-18 00:49:58,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 00:49:58,165 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:49:58,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:49:58,172 INFO L225 Difference]: With dead ends: 6832 [2022-01-18 00:49:58,172 INFO L226 Difference]: Without dead ends: 5936 [2022-01-18 00:49:58,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2405 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2624, Invalid=7678, Unknown=0, NotChecked=0, Total=10302 [2022-01-18 00:49:58,174 INFO L933 BasicCegarLoop]: 597 mSDtfsCounter, 1554 mSDsluCounter, 9531 mSDsCounter, 0 mSdLazyCounter, 1917 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 9890 SdHoareTripleChecker+Invalid, 1920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:49:58,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1554 Valid, 9890 Invalid, 1920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1917 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:49:58,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5936 states. [2022-01-18 00:49:58,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5936 to 5352. [2022-01-18 00:49:58,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 5351 states have (on average 2.638198467576154) internal successors, (14117), 5351 states have internal predecessors, (14117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:58,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 14117 transitions. [2022-01-18 00:49:58,226 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 14117 transitions. Word has length 137 [2022-01-18 00:49:58,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:49:58,226 INFO L470 AbstractCegarLoop]: Abstraction has 5352 states and 14117 transitions. [2022-01-18 00:49:58,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:49:58,226 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 14117 transitions. [2022-01-18 00:49:58,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:49:58,230 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:49:58,230 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:49:58,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-01-18 00:49:58,231 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:49:58,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:49:58,231 INFO L85 PathProgramCache]: Analyzing trace with hash -217224763, now seen corresponding path program 20 times [2022-01-18 00:49:58,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:49:58,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984585599] [2022-01-18 00:49:58,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:49:58,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:49:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:49:58,624 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 00:49:58,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:49:58,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984585599] [2022-01-18 00:49:58,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984585599] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:49:58,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:49:58,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:49:58,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208878779] [2022-01-18 00:49:58,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:49:58,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:49:58,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:49:58,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:49:58,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:49:58,625 INFO L87 Difference]: Start difference. First operand 5352 states and 14117 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:07,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:50:07,746 INFO L93 Difference]: Finished difference Result 7348 states and 19206 transitions. [2022-01-18 00:50:07,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-18 00:50:07,747 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:50:07,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:50:07,760 INFO L225 Difference]: With dead ends: 7348 [2022-01-18 00:50:07,760 INFO L226 Difference]: Without dead ends: 6499 [2022-01-18 00:50:07,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2143 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=2384, Invalid=7122, Unknown=0, NotChecked=0, Total=9506 [2022-01-18 00:50:07,762 INFO L933 BasicCegarLoop]: 583 mSDtfsCounter, 1615 mSDsluCounter, 9121 mSDsCounter, 0 mSdLazyCounter, 1960 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 9484 SdHoareTripleChecker+Invalid, 1963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:50:07,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1615 Valid, 9484 Invalid, 1963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1960 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:50:07,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6499 states. [2022-01-18 00:50:07,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6499 to 5460. [2022-01-18 00:50:07,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5460 states, 5459 states have (on average 2.630884777431764) internal successors, (14362), 5459 states have internal predecessors, (14362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:07,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5460 states to 5460 states and 14362 transitions. [2022-01-18 00:50:07,821 INFO L78 Accepts]: Start accepts. Automaton has 5460 states and 14362 transitions. Word has length 137 [2022-01-18 00:50:07,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:50:07,822 INFO L470 AbstractCegarLoop]: Abstraction has 5460 states and 14362 transitions. [2022-01-18 00:50:07,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:07,822 INFO L276 IsEmpty]: Start isEmpty. Operand 5460 states and 14362 transitions. [2022-01-18 00:50:07,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:50:07,827 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:50:07,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:50:07,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-01-18 00:50:07,827 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:50:07,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:50:07,827 INFO L85 PathProgramCache]: Analyzing trace with hash -486419407, now seen corresponding path program 21 times [2022-01-18 00:50:07,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:50:07,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257176970] [2022-01-18 00:50:07,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:50:07,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:50:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:50:08,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:50:08,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:50:08,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257176970] [2022-01-18 00:50:08,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257176970] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:50:08,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:50:08,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:50:08,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008929412] [2022-01-18 00:50:08,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:50:08,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:50:08,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:50:08,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:50:08,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:50:08,264 INFO L87 Difference]: Start difference. First operand 5460 states and 14362 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:14,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:50:14,611 INFO L93 Difference]: Finished difference Result 7026 states and 18348 transitions. [2022-01-18 00:50:14,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 00:50:14,611 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:50:14,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:50:14,619 INFO L225 Difference]: With dead ends: 7026 [2022-01-18 00:50:14,620 INFO L226 Difference]: Without dead ends: 6580 [2022-01-18 00:50:14,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1950 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=2114, Invalid=6628, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 00:50:14,621 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 1403 mSDsluCounter, 9621 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 9955 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:50:14,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1403 Valid, 9955 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:50:14,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6580 states. [2022-01-18 00:50:14,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6580 to 5464. [2022-01-18 00:50:14,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5464 states, 5463 states have (on average 2.630239794984441) internal successors, (14369), 5463 states have internal predecessors, (14369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:14,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5464 states to 5464 states and 14369 transitions. [2022-01-18 00:50:14,722 INFO L78 Accepts]: Start accepts. Automaton has 5464 states and 14369 transitions. Word has length 137 [2022-01-18 00:50:14,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:50:14,722 INFO L470 AbstractCegarLoop]: Abstraction has 5464 states and 14369 transitions. [2022-01-18 00:50:14,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:14,722 INFO L276 IsEmpty]: Start isEmpty. Operand 5464 states and 14369 transitions. [2022-01-18 00:50:14,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:50:14,727 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:50:14,727 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] [2022-01-18 00:50:14,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-01-18 00:50:14,727 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:50:14,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:50:14,728 INFO L85 PathProgramCache]: Analyzing trace with hash 102441007, now seen corresponding path program 22 times [2022-01-18 00:50:14,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:50:14,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109202459] [2022-01-18 00:50:14,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:50:14,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:50:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:50:15,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:50:15,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:50:15,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109202459] [2022-01-18 00:50:15,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109202459] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:50:15,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:50:15,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:50:15,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122289997] [2022-01-18 00:50:15,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:50:15,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:50:15,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:50:15,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:50:15,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:50:15,151 INFO L87 Difference]: Start difference. First operand 5464 states and 14369 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:20,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:50:20,352 INFO L93 Difference]: Finished difference Result 6800 states and 17830 transitions. [2022-01-18 00:50:20,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 00:50:20,352 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:50:20,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:50:20,360 INFO L225 Difference]: With dead ends: 6800 [2022-01-18 00:50:20,360 INFO L226 Difference]: Without dead ends: 6385 [2022-01-18 00:50:20,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1668 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1858, Invalid=6152, Unknown=0, NotChecked=0, Total=8010 [2022-01-18 00:50:20,361 INFO L933 BasicCegarLoop]: 559 mSDtfsCounter, 1200 mSDsluCounter, 9518 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 9858 SdHoareTripleChecker+Invalid, 2054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:50:20,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1200 Valid, 9858 Invalid, 2054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2051 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:50:20,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6385 states. [2022-01-18 00:50:20,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6385 to 5476. [2022-01-18 00:50:20,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5476 states, 5475 states have (on average 2.628310502283105) internal successors, (14390), 5475 states have internal predecessors, (14390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:20,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5476 states to 5476 states and 14390 transitions. [2022-01-18 00:50:20,416 INFO L78 Accepts]: Start accepts. Automaton has 5476 states and 14390 transitions. Word has length 137 [2022-01-18 00:50:20,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:50:20,416 INFO L470 AbstractCegarLoop]: Abstraction has 5476 states and 14390 transitions. [2022-01-18 00:50:20,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:20,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5476 states and 14390 transitions. [2022-01-18 00:50:20,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:50:20,421 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:50:20,422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:50:20,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-01-18 00:50:20,422 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:50:20,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:50:20,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1933766901, now seen corresponding path program 23 times [2022-01-18 00:50:20,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:50:20,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104629467] [2022-01-18 00:50:20,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:50:20,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:50:20,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:50:21,009 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 00:50:21,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:50:21,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104629467] [2022-01-18 00:50:21,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104629467] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:50:21,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:50:21,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:50:21,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284743169] [2022-01-18 00:50:21,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:50:21,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:50:21,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:50:21,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:50:21,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:50:21,010 INFO L87 Difference]: Start difference. First operand 5476 states and 14390 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:25,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:50:25,506 INFO L93 Difference]: Finished difference Result 6649 states and 17434 transitions. [2022-01-18 00:50:25,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 00:50:25,507 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:50:25,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:50:25,514 INFO L225 Difference]: With dead ends: 6649 [2022-01-18 00:50:25,514 INFO L226 Difference]: Without dead ends: 6327 [2022-01-18 00:50:25,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1329 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1520, Invalid=5122, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 00:50:25,515 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 1117 mSDsluCounter, 9235 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 9581 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:50:25,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1117 Valid, 9581 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:50:25,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6327 states. [2022-01-18 00:50:25,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6327 to 5480. [2022-01-18 00:50:25,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5480 states, 5479 states have (on average 2.627669282715824) internal successors, (14397), 5479 states have internal predecessors, (14397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:25,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5480 states to 5480 states and 14397 transitions. [2022-01-18 00:50:25,572 INFO L78 Accepts]: Start accepts. Automaton has 5480 states and 14397 transitions. Word has length 137 [2022-01-18 00:50:25,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:50:25,572 INFO L470 AbstractCegarLoop]: Abstraction has 5480 states and 14397 transitions. [2022-01-18 00:50:25,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:25,572 INFO L276 IsEmpty]: Start isEmpty. Operand 5480 states and 14397 transitions. [2022-01-18 00:50:25,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:50:25,577 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:50:25,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:50:25,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-01-18 00:50:25,577 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:50:25,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:50:25,577 INFO L85 PathProgramCache]: Analyzing trace with hash -2065597559, now seen corresponding path program 24 times [2022-01-18 00:50:25,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:50:25,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551491149] [2022-01-18 00:50:25,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:50:25,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:50:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:50:26,077 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 00:50:26,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:50:26,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551491149] [2022-01-18 00:50:26,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551491149] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:50:26,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:50:26,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:50:26,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511825364] [2022-01-18 00:50:26,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:50:26,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:50:26,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:50:26,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:50:26,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:50:26,078 INFO L87 Difference]: Start difference. First operand 5480 states and 14397 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:30,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:50:30,145 INFO L93 Difference]: Finished difference Result 6560 states and 17204 transitions. [2022-01-18 00:50:30,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 00:50:30,146 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:50:30,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:50:30,154 INFO L225 Difference]: With dead ends: 6560 [2022-01-18 00:50:30,154 INFO L226 Difference]: Without dead ends: 6269 [2022-01-18 00:50:30,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 917 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1228, Invalid=4174, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 00:50:30,155 INFO L933 BasicCegarLoop]: 540 mSDtfsCounter, 1023 mSDsluCounter, 9290 mSDsCounter, 0 mSdLazyCounter, 1983 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 9638 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:50:30,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1023 Valid, 9638 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1983 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:50:30,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6269 states. [2022-01-18 00:50:30,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6269 to 5484. [2022-01-18 00:50:30,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5483 states have (on average 2.627028998723327) internal successors, (14404), 5483 states have internal predecessors, (14404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:30,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 14404 transitions. [2022-01-18 00:50:30,209 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 14404 transitions. Word has length 137 [2022-01-18 00:50:30,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:50:30,209 INFO L470 AbstractCegarLoop]: Abstraction has 5484 states and 14404 transitions. [2022-01-18 00:50:30,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:30,209 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 14404 transitions. [2022-01-18 00:50:30,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:50:30,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:50:30,215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:50:30,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-01-18 00:50:30,215 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:50:30,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:50:30,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1811188083, now seen corresponding path program 25 times [2022-01-18 00:50:30,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:50:30,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872535840] [2022-01-18 00:50:30,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:50:30,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:50:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:50:30,654 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 00:50:30,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:50:30,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872535840] [2022-01-18 00:50:30,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872535840] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:50:30,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:50:30,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:50:30,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566084671] [2022-01-18 00:50:30,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:50:30,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:50:30,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:50:30,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:50:30,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:50:30,655 INFO L87 Difference]: Start difference. First operand 5484 states and 14404 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:33,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:50:33,899 INFO L93 Difference]: Finished difference Result 6417 states and 16838 transitions. [2022-01-18 00:50:33,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 00:50:33,900 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:50:33,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:50:33,907 INFO L225 Difference]: With dead ends: 6417 [2022-01-18 00:50:33,907 INFO L226 Difference]: Without dead ends: 6160 [2022-01-18 00:50:33,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=958, Invalid=2824, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 00:50:33,908 INFO L933 BasicCegarLoop]: 524 mSDtfsCounter, 938 mSDsluCounter, 7863 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 8249 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:50:33,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [938 Valid, 8249 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:50:33,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6160 states. [2022-01-18 00:50:33,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6160 to 5488. [2022-01-18 00:50:33,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5488 states, 5487 states have (on average 2.6263896482595226) internal successors, (14411), 5487 states have internal predecessors, (14411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:33,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5488 states to 5488 states and 14411 transitions. [2022-01-18 00:50:33,965 INFO L78 Accepts]: Start accepts. Automaton has 5488 states and 14411 transitions. Word has length 137 [2022-01-18 00:50:33,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:50:33,965 INFO L470 AbstractCegarLoop]: Abstraction has 5488 states and 14411 transitions. [2022-01-18 00:50:33,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:33,965 INFO L276 IsEmpty]: Start isEmpty. Operand 5488 states and 14411 transitions. [2022-01-18 00:50:33,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:50:33,970 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:50:33,970 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:50:33,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-01-18 00:50:33,970 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:50:33,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:50:33,970 INFO L85 PathProgramCache]: Analyzing trace with hash -990957779, now seen corresponding path program 26 times [2022-01-18 00:50:33,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:50:33,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840308143] [2022-01-18 00:50:33,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:50:33,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:50:33,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:50:34,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:50:34,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:50:34,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840308143] [2022-01-18 00:50:34,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840308143] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:50:34,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:50:34,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:50:34,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551925720] [2022-01-18 00:50:34,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:50:34,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:50:34,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:50:34,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:50:34,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:50:34,434 INFO L87 Difference]: Start difference. First operand 5488 states and 14411 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:37,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:50:37,750 INFO L93 Difference]: Finished difference Result 6388 states and 16756 transitions. [2022-01-18 00:50:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:50:37,750 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:50:37,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:50:37,756 INFO L225 Difference]: With dead ends: 6388 [2022-01-18 00:50:37,756 INFO L226 Difference]: Without dead ends: 6048 [2022-01-18 00:50:37,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=987, Invalid=3303, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:50:37,771 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 920 mSDsluCounter, 9786 mSDsCounter, 0 mSdLazyCounter, 2059 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 10122 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:50:37,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [920 Valid, 10122 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2059 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:50:37,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6048 states. [2022-01-18 00:50:37,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6048 to 5408. [2022-01-18 00:50:37,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5408 states, 5407 states have (on average 2.629739226928056) internal successors, (14219), 5407 states have internal predecessors, (14219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:37,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5408 states to 5408 states and 14219 transitions. [2022-01-18 00:50:37,867 INFO L78 Accepts]: Start accepts. Automaton has 5408 states and 14219 transitions. Word has length 137 [2022-01-18 00:50:37,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:50:37,867 INFO L470 AbstractCegarLoop]: Abstraction has 5408 states and 14219 transitions. [2022-01-18 00:50:37,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:37,867 INFO L276 IsEmpty]: Start isEmpty. Operand 5408 states and 14219 transitions. [2022-01-18 00:50:37,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:50:37,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:50:37,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:50:37,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-01-18 00:50:37,873 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:50:37,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:50:37,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1945541703, now seen corresponding path program 27 times [2022-01-18 00:50:37,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:50:37,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902719217] [2022-01-18 00:50:37,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:50:37,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:50:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:50:38,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:50:38,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:50:38,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902719217] [2022-01-18 00:50:38,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902719217] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:50:38,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:50:38,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:50:38,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477822345] [2022-01-18 00:50:38,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:50:38,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:50:38,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:50:38,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:50:38,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:50:38,394 INFO L87 Difference]: Start difference. First operand 5408 states and 14219 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:42,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:50:42,159 INFO L93 Difference]: Finished difference Result 6437 states and 16883 transitions. [2022-01-18 00:50:42,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 00:50:42,159 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:50:42,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:50:42,166 INFO L225 Difference]: With dead ends: 6437 [2022-01-18 00:50:42,166 INFO L226 Difference]: Without dead ends: 6115 [2022-01-18 00:50:42,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1206 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1519, Invalid=4961, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 00:50:42,167 INFO L933 BasicCegarLoop]: 536 mSDtfsCounter, 1072 mSDsluCounter, 9201 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 9532 SdHoareTripleChecker+Invalid, 1975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:50:42,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1072 Valid, 9532 Invalid, 1975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:50:42,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6115 states. [2022-01-18 00:50:42,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6115 to 5432. [2022-01-18 00:50:42,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.6295341557724177) internal successors, (14281), 5431 states have internal predecessors, (14281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:42,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14281 transitions. [2022-01-18 00:50:42,224 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14281 transitions. Word has length 137 [2022-01-18 00:50:42,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:50:42,224 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14281 transitions. [2022-01-18 00:50:42,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:42,224 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14281 transitions. [2022-01-18 00:50:42,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:50:42,231 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:50:42,231 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:50:42,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-01-18 00:50:42,231 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:50:42,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:50:42,232 INFO L85 PathProgramCache]: Analyzing trace with hash -2053822757, now seen corresponding path program 28 times [2022-01-18 00:50:42,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:50:42,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176664761] [2022-01-18 00:50:42,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:50:42,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:50:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:50:42,676 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 00:50:42,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:50:42,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176664761] [2022-01-18 00:50:42,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176664761] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:50:42,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:50:42,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:50:42,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982282258] [2022-01-18 00:50:42,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:50:42,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:50:42,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:50:42,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:50:42,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:50:42,677 INFO L87 Difference]: Start difference. First operand 5432 states and 14281 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:49,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:50:49,425 INFO L93 Difference]: Finished difference Result 6380 states and 16741 transitions. [2022-01-18 00:50:49,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 00:50:49,425 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:50:49,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:50:49,430 INFO L225 Difference]: With dead ends: 6380 [2022-01-18 00:50:49,430 INFO L226 Difference]: Without dead ends: 6089 [2022-01-18 00:50:49,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1260, Invalid=4142, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 00:50:49,431 INFO L933 BasicCegarLoop]: 530 mSDtfsCounter, 1072 mSDsluCounter, 8433 mSDsCounter, 0 mSdLazyCounter, 1831 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 8795 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:50:49,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1072 Valid, 8795 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1831 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:50:49,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6089 states. [2022-01-18 00:50:49,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6089 to 5436. [2022-01-18 00:50:49,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.628886844526219) internal successors, (14288), 5435 states have internal predecessors, (14288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:49,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14288 transitions. [2022-01-18 00:50:49,480 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14288 transitions. Word has length 137 [2022-01-18 00:50:49,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:50:49,480 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14288 transitions. [2022-01-18 00:50:49,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:49,480 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14288 transitions. [2022-01-18 00:50:49,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:50:49,484 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:50:49,485 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:50:49,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-01-18 00:50:49,485 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:50:49,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:50:49,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1822962885, now seen corresponding path program 29 times [2022-01-18 00:50:49,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:50:49,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744246601] [2022-01-18 00:50:49,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:50:49,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:50:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:50:50,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:50:50,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:50:50,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744246601] [2022-01-18 00:50:50,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744246601] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:50:50,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:50:50,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:50:50,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513104968] [2022-01-18 00:50:50,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:50:50,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:50:50,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:50:50,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:50:50,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:50:50,007 INFO L87 Difference]: Start difference. First operand 5436 states and 14288 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:54,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:50:54,490 INFO L93 Difference]: Finished difference Result 6277 states and 16477 transitions. [2022-01-18 00:50:54,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 00:50:54,490 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:50:54,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:50:54,497 INFO L225 Difference]: With dead ends: 6277 [2022-01-18 00:50:54,497 INFO L226 Difference]: Without dead ends: 6020 [2022-01-18 00:50:54,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1026, Invalid=3006, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 00:50:54,498 INFO L933 BasicCegarLoop]: 518 mSDtfsCounter, 923 mSDsluCounter, 9435 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 9770 SdHoareTripleChecker+Invalid, 2009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:50:54,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [923 Valid, 9770 Invalid, 2009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:50:54,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6020 states. [2022-01-18 00:50:54,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6020 to 5440. [2022-01-18 00:50:54,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6282404853833423) internal successors, (14295), 5439 states have internal predecessors, (14295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:54,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14295 transitions. [2022-01-18 00:50:54,551 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14295 transitions. Word has length 137 [2022-01-18 00:50:54,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:50:54,551 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14295 transitions. [2022-01-18 00:50:54,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:54,551 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14295 transitions. [2022-01-18 00:50:54,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:50:54,556 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:50:54,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:50:54,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-01-18 00:50:54,556 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:50:54,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:50:54,556 INFO L85 PathProgramCache]: Analyzing trace with hash -979182977, now seen corresponding path program 30 times [2022-01-18 00:50:54,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:50:54,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531124797] [2022-01-18 00:50:54,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:50:54,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:50:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:50:55,101 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 00:50:55,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:50:55,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531124797] [2022-01-18 00:50:55,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531124797] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:50:55,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:50:55,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:50:55,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497520797] [2022-01-18 00:50:55,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:50:55,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:50:55,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:50:55,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:50:55,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:50:55,102 INFO L87 Difference]: Start difference. First operand 5440 states and 14295 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:59,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:50:59,366 INFO L93 Difference]: Finished difference Result 6248 states and 16395 transitions. [2022-01-18 00:50:59,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:50:59,367 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:50:59,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:50:59,372 INFO L225 Difference]: With dead ends: 6248 [2022-01-18 00:50:59,372 INFO L226 Difference]: Without dead ends: 5976 [2022-01-18 00:50:59,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1006, Invalid=3284, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:50:59,373 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 1010 mSDsluCounter, 7945 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 8323 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:50:59,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 8323 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1755 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:50:59,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2022-01-18 00:50:59,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 5428. [2022-01-18 00:50:59,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 5427 states have (on average 2.6294453657637735) internal successors, (14270), 5427 states have internal predecessors, (14270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:59,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 14270 transitions. [2022-01-18 00:50:59,421 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 14270 transitions. Word has length 137 [2022-01-18 00:50:59,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:50:59,421 INFO L470 AbstractCegarLoop]: Abstraction has 5428 states and 14270 transitions. [2022-01-18 00:50:59,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:50:59,421 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 14270 transitions. [2022-01-18 00:50:59,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:50:59,426 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:50:59,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:50:59,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-01-18 00:50:59,426 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:50:59,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:50:59,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1535630111, now seen corresponding path program 31 times [2022-01-18 00:50:59,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:50:59,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228448424] [2022-01-18 00:50:59,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:50:59,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:50:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:50:59,921 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 00:50:59,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:50:59,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228448424] [2022-01-18 00:50:59,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228448424] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:50:59,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:50:59,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:50:59,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679671304] [2022-01-18 00:50:59,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:50:59,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:50:59,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:50:59,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:50:59,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:50:59,922 INFO L87 Difference]: Start difference. First operand 5428 states and 14270 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:03,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:51:03,552 INFO L93 Difference]: Finished difference Result 6193 states and 16254 transitions. [2022-01-18 00:51:03,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 00:51:03,552 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:51:03,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:51:03,559 INFO L225 Difference]: With dead ends: 6193 [2022-01-18 00:51:03,560 INFO L226 Difference]: Without dead ends: 5908 [2022-01-18 00:51:03,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1290, Invalid=3540, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 00:51:03,560 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 971 mSDsluCounter, 8579 mSDsCounter, 0 mSdLazyCounter, 1809 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 8928 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:51:03,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [971 Valid, 8928 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1809 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:51:03,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5908 states. [2022-01-18 00:51:03,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5908 to 5436. [2022-01-18 00:51:03,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.628886844526219) internal successors, (14288), 5435 states have internal predecessors, (14288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:03,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14288 transitions. [2022-01-18 00:51:03,612 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14288 transitions. Word has length 137 [2022-01-18 00:51:03,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:51:03,613 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14288 transitions. [2022-01-18 00:51:03,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:03,613 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14288 transitions. [2022-01-18 00:51:03,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:51:03,617 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:51:03,617 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:51:03,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-01-18 00:51:03,617 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:51:03,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:51:03,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1515375091, now seen corresponding path program 32 times [2022-01-18 00:51:03,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:51:03,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070009791] [2022-01-18 00:51:03,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:51:03,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:51:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:51:04,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:51:04,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:51:04,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070009791] [2022-01-18 00:51:04,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070009791] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:51:04,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:51:04,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:51:04,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75398528] [2022-01-18 00:51:04,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:51:04,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:51:04,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:51:04,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:51:04,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:51:04,059 INFO L87 Difference]: Start difference. First operand 5436 states and 14288 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:07,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:51:07,037 INFO L93 Difference]: Finished difference Result 6201 states and 16272 transitions. [2022-01-18 00:51:07,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:51:07,037 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:51:07,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:51:07,044 INFO L225 Difference]: With dead ends: 6201 [2022-01-18 00:51:07,044 INFO L226 Difference]: Without dead ends: 5944 [2022-01-18 00:51:07,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1102, Invalid=3188, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:51:07,045 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 975 mSDsluCounter, 8928 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 9280 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:51:07,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [975 Valid, 9280 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:51:07,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2022-01-18 00:51:07,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5440. [2022-01-18 00:51:07,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6282404853833423) internal successors, (14295), 5439 states have internal predecessors, (14295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:07,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14295 transitions. [2022-01-18 00:51:07,099 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14295 transitions. Word has length 137 [2022-01-18 00:51:07,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:51:07,099 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14295 transitions. [2022-01-18 00:51:07,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:07,099 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14295 transitions. [2022-01-18 00:51:07,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:51:07,103 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:51:07,103 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:51:07,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-01-18 00:51:07,104 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:51:07,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:51:07,104 INFO L85 PathProgramCache]: Analyzing trace with hash -22553657, now seen corresponding path program 33 times [2022-01-18 00:51:07,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:51:07,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70064848] [2022-01-18 00:51:07,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:51:07,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:51:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:51:07,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:51:07,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:51:07,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70064848] [2022-01-18 00:51:07,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70064848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:51:07,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:51:07,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:51:07,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649694356] [2022-01-18 00:51:07,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:51:07,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:51:07,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:51:07,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:51:07,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:51:07,544 INFO L87 Difference]: Start difference. First operand 5440 states and 14295 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:12,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:51:12,534 INFO L93 Difference]: Finished difference Result 6172 states and 16190 transitions. [2022-01-18 00:51:12,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 00:51:12,534 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:51:12,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:51:12,541 INFO L225 Difference]: With dead ends: 6172 [2022-01-18 00:51:12,541 INFO L226 Difference]: Without dead ends: 5904 [2022-01-18 00:51:12,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=972, Invalid=3188, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 00:51:12,541 INFO L933 BasicCegarLoop]: 526 mSDtfsCounter, 999 mSDsluCounter, 7850 mSDsCounter, 0 mSdLazyCounter, 1717 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 8236 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:51:12,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [999 Valid, 8236 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1717 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:51:12,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5904 states. [2022-01-18 00:51:12,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5904 to 5432. [2022-01-18 00:51:12,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.628797643159639) internal successors, (14277), 5431 states have internal predecessors, (14277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:12,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14277 transitions. [2022-01-18 00:51:12,591 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14277 transitions. Word has length 137 [2022-01-18 00:51:12,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:51:12,592 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14277 transitions. [2022-01-18 00:51:12,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:12,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14277 transitions. [2022-01-18 00:51:12,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:51:12,596 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:51:12,596 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] [2022-01-18 00:51:12,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-01-18 00:51:12,597 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:51:12,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:51:12,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1014872227, now seen corresponding path program 34 times [2022-01-18 00:51:12,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:51:12,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759537364] [2022-01-18 00:51:12,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:51:12,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:51:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:51:13,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:51:13,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:51:13,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759537364] [2022-01-18 00:51:13,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759537364] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:51:13,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:51:13,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:51:13,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500344760] [2022-01-18 00:51:13,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:51:13,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:51:13,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:51:13,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:51:13,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:51:13,115 INFO L87 Difference]: Start difference. First operand 5432 states and 14277 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:16,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:51:16,612 INFO L93 Difference]: Finished difference Result 6304 states and 16532 transitions. [2022-01-18 00:51:16,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 00:51:16,612 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:51:16,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:51:16,620 INFO L225 Difference]: With dead ends: 6304 [2022-01-18 00:51:16,620 INFO L226 Difference]: Without dead ends: 6013 [2022-01-18 00:51:16,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 865 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1225, Invalid=4031, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 00:51:16,621 INFO L933 BasicCegarLoop]: 533 mSDtfsCounter, 1074 mSDsluCounter, 9017 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 9364 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:51:16,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1074 Valid, 9364 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:51:16,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2022-01-18 00:51:16,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 5436. [2022-01-18 00:51:16,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.6281508739650414) internal successors, (14284), 5435 states have internal predecessors, (14284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:16,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14284 transitions. [2022-01-18 00:51:16,679 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14284 transitions. Word has length 137 [2022-01-18 00:51:16,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:51:16,679 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14284 transitions. [2022-01-18 00:51:16,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:16,679 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14284 transitions. [2022-01-18 00:51:16,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:51:16,683 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:51:16,684 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:51:16,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-01-18 00:51:16,684 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:51:16,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:51:16,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1433053881, now seen corresponding path program 35 times [2022-01-18 00:51:16,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:51:16,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952753453] [2022-01-18 00:51:16,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:51:16,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:51:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:51:17,252 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 00:51:17,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:51:17,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952753453] [2022-01-18 00:51:17,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952753453] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:51:17,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:51:17,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:51:17,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16669456] [2022-01-18 00:51:17,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:51:17,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:51:17,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:51:17,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:51:17,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:51:17,254 INFO L87 Difference]: Start difference. First operand 5436 states and 14284 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:21,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:51:21,155 INFO L93 Difference]: Finished difference Result 6201 states and 16268 transitions. [2022-01-18 00:51:21,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 00:51:21,155 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:51:21,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:51:21,161 INFO L225 Difference]: With dead ends: 6201 [2022-01-18 00:51:21,161 INFO L226 Difference]: Without dead ends: 5944 [2022-01-18 00:51:21,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1065, Invalid=3095, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 00:51:21,162 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 988 mSDsluCounter, 8302 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 8672 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:51:21,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [988 Valid, 8672 Invalid, 1768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:51:21,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2022-01-18 00:51:21,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5440. [2022-01-18 00:51:21,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6275050560764845) internal successors, (14291), 5439 states have internal predecessors, (14291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:21,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14291 transitions. [2022-01-18 00:51:21,210 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14291 transitions. Word has length 137 [2022-01-18 00:51:21,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:51:21,210 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14291 transitions. [2022-01-18 00:51:21,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:21,210 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14291 transitions. [2022-01-18 00:51:21,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:51:21,215 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:51:21,215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:51:21,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-01-18 00:51:21,215 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:51:21,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:51:21,215 INFO L85 PathProgramCache]: Analyzing trace with hash 59767553, now seen corresponding path program 36 times [2022-01-18 00:51:21,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:51:21,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365330639] [2022-01-18 00:51:21,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:51:21,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:51:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:51:21,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:51:21,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:51:21,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365330639] [2022-01-18 00:51:21,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365330639] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:51:21,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:51:21,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:51:21,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377045813] [2022-01-18 00:51:21,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:51:21,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:51:21,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:51:21,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:51:21,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:51:21,626 INFO L87 Difference]: Start difference. First operand 5440 states and 14291 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:25,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:51:25,641 INFO L93 Difference]: Finished difference Result 6172 states and 16186 transitions. [2022-01-18 00:51:25,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:51:25,641 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:51:25,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:51:25,648 INFO L225 Difference]: With dead ends: 6172 [2022-01-18 00:51:25,648 INFO L226 Difference]: Without dead ends: 5896 [2022-01-18 00:51:25,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1011, Invalid=3279, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:51:25,649 INFO L933 BasicCegarLoop]: 528 mSDtfsCounter, 997 mSDsluCounter, 9156 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 9505 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:51:25,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [997 Valid, 9505 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:51:25,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5896 states. [2022-01-18 00:51:25,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5896 to 5424. [2022-01-18 00:51:25,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5424 states, 5423 states have (on average 2.629356444772266) internal successors, (14259), 5423 states have internal predecessors, (14259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:25,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5424 states to 5424 states and 14259 transitions. [2022-01-18 00:51:25,700 INFO L78 Accepts]: Start accepts. Automaton has 5424 states and 14259 transitions. Word has length 137 [2022-01-18 00:51:25,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:51:25,700 INFO L470 AbstractCegarLoop]: Abstraction has 5424 states and 14259 transitions. [2022-01-18 00:51:25,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:25,700 INFO L276 IsEmpty]: Start isEmpty. Operand 5424 states and 14259 transitions. [2022-01-18 00:51:25,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:51:25,705 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:51:25,705 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:51:25,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-01-18 00:51:25,705 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:51:25,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:51:25,705 INFO L85 PathProgramCache]: Analyzing trace with hash 40724957, now seen corresponding path program 37 times [2022-01-18 00:51:25,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:51:25,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590805032] [2022-01-18 00:51:25,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:51:25,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:51:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:51:26,291 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 00:51:26,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:51:26,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590805032] [2022-01-18 00:51:26,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590805032] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:51:26,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:51:26,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:51:26,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632462427] [2022-01-18 00:51:26,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:51:26,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:51:26,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:51:26,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:51:26,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:51:26,292 INFO L87 Difference]: Start difference. First operand 5424 states and 14259 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:31,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:51:31,623 INFO L93 Difference]: Finished difference Result 6568 states and 17212 transitions. [2022-01-18 00:51:31,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-01-18 00:51:31,623 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:51:31,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:51:31,630 INFO L225 Difference]: With dead ends: 6568 [2022-01-18 00:51:31,630 INFO L226 Difference]: Without dead ends: 6153 [2022-01-18 00:51:31,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1668 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1857, Invalid=5975, Unknown=0, NotChecked=0, Total=7832 [2022-01-18 00:51:31,631 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 1199 mSDsluCounter, 9332 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 9662 SdHoareTripleChecker+Invalid, 2010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:51:31,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1199 Valid, 9662 Invalid, 2010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:51:31,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6153 states. [2022-01-18 00:51:31,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6153 to 5436. [2022-01-18 00:51:31,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.6274149034038636) internal successors, (14280), 5435 states have internal predecessors, (14280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:31,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14280 transitions. [2022-01-18 00:51:31,681 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14280 transitions. Word has length 137 [2022-01-18 00:51:31,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:51:31,681 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14280 transitions. [2022-01-18 00:51:31,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:31,681 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14280 transitions. [2022-01-18 00:51:31,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:51:31,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:51:31,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:51:31,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-01-18 00:51:31,686 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:51:31,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:51:31,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1859617531, now seen corresponding path program 38 times [2022-01-18 00:51:31,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:51:31,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253597004] [2022-01-18 00:51:31,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:51:31,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:51:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:51:32,280 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 00:51:32,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:51:32,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253597004] [2022-01-18 00:51:32,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253597004] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:51:32,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:51:32,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:51:32,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461520314] [2022-01-18 00:51:32,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:51:32,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:51:32,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:51:32,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:51:32,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:51:32,282 INFO L87 Difference]: Start difference. First operand 5436 states and 14280 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:40,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:51:40,050 INFO L93 Difference]: Finished difference Result 6417 states and 16816 transitions. [2022-01-18 00:51:40,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 00:51:40,050 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:51:40,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:51:40,057 INFO L225 Difference]: With dead ends: 6417 [2022-01-18 00:51:40,058 INFO L226 Difference]: Without dead ends: 6095 [2022-01-18 00:51:40,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1314 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=1549, Invalid=5093, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 00:51:40,058 INFO L933 BasicCegarLoop]: 542 mSDtfsCounter, 1169 mSDsluCounter, 8311 mSDsCounter, 0 mSdLazyCounter, 1824 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 8675 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:51:40,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1169 Valid, 8675 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1824 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:51:40,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6095 states. [2022-01-18 00:51:40,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6095 to 5440. [2022-01-18 00:51:40,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6267696267696268) internal successors, (14287), 5439 states have internal predecessors, (14287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:40,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14287 transitions. [2022-01-18 00:51:40,112 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14287 transitions. Word has length 137 [2022-01-18 00:51:40,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:51:40,112 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14287 transitions. [2022-01-18 00:51:40,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:40,112 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14287 transitions. [2022-01-18 00:51:40,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:51:40,116 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:51:40,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:51:40,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-01-18 00:51:40,117 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:51:40,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:51:40,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1564014695, now seen corresponding path program 39 times [2022-01-18 00:51:40,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:51:40,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556432295] [2022-01-18 00:51:40,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:51:40,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:51:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:51:40,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:51:40,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:51:40,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556432295] [2022-01-18 00:51:40,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556432295] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:51:40,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:51:40,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:51:40,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865780382] [2022-01-18 00:51:40,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:51:40,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:51:40,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:51:40,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:51:40,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:51:40,663 INFO L87 Difference]: Start difference. First operand 5440 states and 14287 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:46,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:51:46,025 INFO L93 Difference]: Finished difference Result 6328 states and 16586 transitions. [2022-01-18 00:51:46,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 00:51:46,026 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:51:46,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:51:46,032 INFO L225 Difference]: With dead ends: 6328 [2022-01-18 00:51:46,032 INFO L226 Difference]: Without dead ends: 6037 [2022-01-18 00:51:46,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 993 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1253, Invalid=4149, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 00:51:46,033 INFO L933 BasicCegarLoop]: 533 mSDtfsCounter, 1060 mSDsluCounter, 8558 mSDsCounter, 0 mSdLazyCounter, 1839 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 8922 SdHoareTripleChecker+Invalid, 1842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:51:46,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1060 Valid, 8922 Invalid, 1842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1839 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:51:46,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6037 states. [2022-01-18 00:51:46,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6037 to 5444. [2022-01-18 00:51:46,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5444 states, 5443 states have (on average 2.6261252985485943) internal successors, (14294), 5443 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:46,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 14294 transitions. [2022-01-18 00:51:46,089 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 14294 transitions. Word has length 137 [2022-01-18 00:51:46,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:51:46,089 INFO L470 AbstractCegarLoop]: Abstraction has 5444 states and 14294 transitions. [2022-01-18 00:51:46,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:46,090 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 14294 transitions. [2022-01-18 00:51:46,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:51:46,095 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:51:46,095 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:51:46,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-01-18 00:51:46,095 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:51:46,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:51:46,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1982196349, now seen corresponding path program 40 times [2022-01-18 00:51:46,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:51:46,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689371102] [2022-01-18 00:51:46,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:51:46,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:51:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:51:46,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:51:46,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:51:46,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689371102] [2022-01-18 00:51:46,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689371102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:51:46,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:51:46,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:51:46,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771623125] [2022-01-18 00:51:46,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:51:46,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:51:46,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:51:46,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:51:46,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:51:46,597 INFO L87 Difference]: Start difference. First operand 5444 states and 14294 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:49,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:51:49,704 INFO L93 Difference]: Finished difference Result 6209 states and 16278 transitions. [2022-01-18 00:51:49,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 00:51:49,705 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:51:49,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:51:49,712 INFO L225 Difference]: With dead ends: 6209 [2022-01-18 00:51:49,712 INFO L226 Difference]: Without dead ends: 5952 [2022-01-18 00:51:49,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=991, Invalid=2915, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 00:51:49,713 INFO L933 BasicCegarLoop]: 517 mSDtfsCounter, 974 mSDsluCounter, 9256 mSDsCounter, 0 mSdLazyCounter, 1934 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 9596 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:51:49,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [974 Valid, 9596 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1934 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:51:49,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5952 states. [2022-01-18 00:51:49,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5952 to 5448. [2022-01-18 00:51:49,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5448 states, 5447 states have (on average 2.625481916651368) internal successors, (14301), 5447 states have internal predecessors, (14301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:49,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5448 states to 5448 states and 14301 transitions. [2022-01-18 00:51:49,773 INFO L78 Accepts]: Start accepts. Automaton has 5448 states and 14301 transitions. Word has length 137 [2022-01-18 00:51:49,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:51:49,773 INFO L470 AbstractCegarLoop]: Abstraction has 5448 states and 14301 transitions. [2022-01-18 00:51:49,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:49,773 INFO L276 IsEmpty]: Start isEmpty. Operand 5448 states and 14301 transitions. [2022-01-18 00:51:49,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:51:49,778 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:51:49,778 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:51:49,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-01-18 00:51:49,778 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:51:49,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:51:49,778 INFO L85 PathProgramCache]: Analyzing trace with hash -489374915, now seen corresponding path program 41 times [2022-01-18 00:51:49,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:51:49,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036643326] [2022-01-18 00:51:49,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:51:49,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:51:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:51:50,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:51:50,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:51:50,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036643326] [2022-01-18 00:51:50,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036643326] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:51:50,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:51:50,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:51:50,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285517276] [2022-01-18 00:51:50,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:51:50,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:51:50,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:51:50,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:51:50,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:51:50,271 INFO L87 Difference]: Start difference. First operand 5448 states and 14301 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:53,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:51:53,390 INFO L93 Difference]: Finished difference Result 6180 states and 16196 transitions. [2022-01-18 00:51:53,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:51:53,391 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:51:53,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:51:53,398 INFO L225 Difference]: With dead ends: 6180 [2022-01-18 00:51:53,398 INFO L226 Difference]: Without dead ends: 5884 [2022-01-18 00:51:53,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1004, Invalid=3286, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:51:53,399 INFO L933 BasicCegarLoop]: 525 mSDtfsCounter, 922 mSDsluCounter, 7861 mSDsCounter, 0 mSdLazyCounter, 1711 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 8247 SdHoareTripleChecker+Invalid, 1714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:51:53,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [922 Valid, 8247 Invalid, 1714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1711 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:51:53,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5884 states. [2022-01-18 00:51:53,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5884 to 5412. [2022-01-18 00:51:53,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5412 states, 5411 states have (on average 2.629088892995749) internal successors, (14226), 5411 states have internal predecessors, (14226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:53,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5412 states to 5412 states and 14226 transitions. [2022-01-18 00:51:53,478 INFO L78 Accepts]: Start accepts. Automaton has 5412 states and 14226 transitions. Word has length 137 [2022-01-18 00:51:53,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:51:53,478 INFO L470 AbstractCegarLoop]: Abstraction has 5412 states and 14226 transitions. [2022-01-18 00:51:53,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:51:53,478 INFO L276 IsEmpty]: Start isEmpty. Operand 5412 states and 14226 transitions. [2022-01-18 00:51:53,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:51:53,483 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:51:53,483 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:51:53,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-01-18 00:51:53,483 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:51:53,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:51:53,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1311377081, now seen corresponding path program 42 times [2022-01-18 00:51:53,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:51:53,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714591643] [2022-01-18 00:51:53,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:51:53,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:51:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:51:53,950 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 00:51:53,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:51:53,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714591643] [2022-01-18 00:51:53,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714591643] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:51:53,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:51:53,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:51:53,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204938243] [2022-01-18 00:51:53,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:51:53,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:51:53,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:51:53,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:51:53,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:51:53,951 INFO L87 Difference]: Start difference. First operand 5412 states and 14226 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:00,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:52:00,524 INFO L93 Difference]: Finished difference Result 6810 states and 17762 transitions. [2022-01-18 00:52:00,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 00:52:00,529 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:52:00,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:52:00,537 INFO L225 Difference]: With dead ends: 6810 [2022-01-18 00:52:00,537 INFO L226 Difference]: Without dead ends: 6364 [2022-01-18 00:52:00,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1940 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=2134, Invalid=6608, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 00:52:00,539 INFO L933 BasicCegarLoop]: 557 mSDtfsCounter, 1408 mSDsluCounter, 8990 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 9332 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:52:00,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1408 Valid, 9332 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1889 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:52:00,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6364 states. [2022-01-18 00:52:00,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6364 to 5416. [2022-01-18 00:52:00,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 5415 states have (on average 2.6284395198522623) internal successors, (14233), 5415 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:00,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 14233 transitions. [2022-01-18 00:52:00,605 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 14233 transitions. Word has length 137 [2022-01-18 00:52:00,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:52:00,605 INFO L470 AbstractCegarLoop]: Abstraction has 5416 states and 14233 transitions. [2022-01-18 00:52:00,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:00,606 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 14233 transitions. [2022-01-18 00:52:00,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:52:00,611 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:52:00,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:52:00,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-01-18 00:52:00,611 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:52:00,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:52:00,611 INFO L85 PathProgramCache]: Analyzing trace with hash -722516667, now seen corresponding path program 43 times [2022-01-18 00:52:00,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:52:00,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161782496] [2022-01-18 00:52:00,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:52:00,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:52:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:52:01,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:52:01,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:52:01,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161782496] [2022-01-18 00:52:01,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161782496] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:52:01,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:52:01,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:52:01,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551077302] [2022-01-18 00:52:01,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:52:01,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:52:01,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:52:01,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:52:01,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:52:01,280 INFO L87 Difference]: Start difference. First operand 5416 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:11,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:52:11,134 INFO L93 Difference]: Finished difference Result 6584 states and 17244 transitions. [2022-01-18 00:52:11,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 00:52:11,134 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:52:11,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:52:11,141 INFO L225 Difference]: With dead ends: 6584 [2022-01-18 00:52:11,141 INFO L226 Difference]: Without dead ends: 6169 [2022-01-18 00:52:11,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1727 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=1878, Invalid=6132, Unknown=0, NotChecked=0, Total=8010 [2022-01-18 00:52:11,142 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 1184 mSDsluCounter, 8303 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 8671 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 00:52:11,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1184 Valid, 8671 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 00:52:11,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6169 states. [2022-01-18 00:52:11,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6169 to 5428. [2022-01-18 00:52:11,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 5427 states have (on average 2.626497143910079) internal successors, (14254), 5427 states have internal predecessors, (14254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:11,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 14254 transitions. [2022-01-18 00:52:11,199 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 14254 transitions. Word has length 137 [2022-01-18 00:52:11,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:52:11,199 INFO L470 AbstractCegarLoop]: Abstraction has 5428 states and 14254 transitions. [2022-01-18 00:52:11,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:11,199 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 14254 transitions. [2022-01-18 00:52:11,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:52:11,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:52:11,205 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:52:11,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-01-18 00:52:11,205 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:52:11,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:52:11,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1108809227, now seen corresponding path program 44 times [2022-01-18 00:52:11,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:52:11,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138225898] [2022-01-18 00:52:11,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:52:11,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:52:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:52:11,594 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 00:52:11,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:52:11,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138225898] [2022-01-18 00:52:11,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138225898] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:52:11,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:52:11,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:52:11,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859607750] [2022-01-18 00:52:11,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:52:11,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:52:11,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:52:11,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:52:11,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:52:11,595 INFO L87 Difference]: Start difference. First operand 5428 states and 14254 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:16,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:52:16,427 INFO L93 Difference]: Finished difference Result 6433 states and 16848 transitions. [2022-01-18 00:52:16,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 00:52:16,427 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:52:16,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:52:16,434 INFO L225 Difference]: With dead ends: 6433 [2022-01-18 00:52:16,435 INFO L226 Difference]: Without dead ends: 6111 [2022-01-18 00:52:16,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1262 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1532, Invalid=5110, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 00:52:16,436 INFO L933 BasicCegarLoop]: 541 mSDtfsCounter, 1115 mSDsluCounter, 9459 mSDsCounter, 0 mSdLazyCounter, 1985 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 9789 SdHoareTripleChecker+Invalid, 1988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:52:16,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1115 Valid, 9789 Invalid, 1988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1985 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:52:16,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6111 states. [2022-01-18 00:52:16,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6111 to 5432. [2022-01-18 00:52:16,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.6258515927085253) internal successors, (14261), 5431 states have internal predecessors, (14261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:16,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14261 transitions. [2022-01-18 00:52:16,497 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14261 transitions. Word has length 137 [2022-01-18 00:52:16,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:52:16,497 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14261 transitions. [2022-01-18 00:52:16,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:16,497 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14261 transitions. [2022-01-18 00:52:16,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:52:16,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:52:16,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:52:16,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-01-18 00:52:16,502 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:52:16,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:52:16,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1404412063, now seen corresponding path program 45 times [2022-01-18 00:52:16,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:52:16,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853981102] [2022-01-18 00:52:16,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:52:16,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:52:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:52:17,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:52:17,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:52:17,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853981102] [2022-01-18 00:52:17,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853981102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:52:17,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:52:17,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:52:17,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943290602] [2022-01-18 00:52:17,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:52:17,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:52:17,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:52:17,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:52:17,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:52:17,085 INFO L87 Difference]: Start difference. First operand 5432 states and 14261 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:22,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:52:22,316 INFO L93 Difference]: Finished difference Result 6344 states and 16618 transitions. [2022-01-18 00:52:22,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 00:52:22,316 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:52:22,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:52:22,323 INFO L225 Difference]: With dead ends: 6344 [2022-01-18 00:52:22,323 INFO L226 Difference]: Without dead ends: 6053 [2022-01-18 00:52:22,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 964 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1240, Invalid=4162, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 00:52:22,324 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 1060 mSDsluCounter, 8562 mSDsCounter, 0 mSdLazyCounter, 1810 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 8921 SdHoareTripleChecker+Invalid, 1813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:52:22,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1060 Valid, 8921 Invalid, 1813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1810 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:52:22,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6053 states. [2022-01-18 00:52:22,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6053 to 5436. [2022-01-18 00:52:22,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.625206991720331) internal successors, (14268), 5435 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:22,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14268 transitions. [2022-01-18 00:52:22,383 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14268 transitions. Word has length 137 [2022-01-18 00:52:22,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:52:22,383 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14268 transitions. [2022-01-18 00:52:22,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:22,384 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14268 transitions. [2022-01-18 00:52:22,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:52:22,389 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:52:22,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:52:22,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-01-18 00:52:22,389 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:52:22,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:52:22,389 INFO L85 PathProgramCache]: Analyzing trace with hash 986230409, now seen corresponding path program 46 times [2022-01-18 00:52:22,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:52:22,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261047481] [2022-01-18 00:52:22,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:52:22,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:52:22,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:52:22,916 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 00:52:22,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:52:22,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261047481] [2022-01-18 00:52:22,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261047481] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:52:22,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:52:22,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:52:22,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223734750] [2022-01-18 00:52:22,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:52:22,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:52:22,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:52:22,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:52:22,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:52:22,917 INFO L87 Difference]: Start difference. First operand 5436 states and 14268 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:28,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:52:28,199 INFO L93 Difference]: Finished difference Result 6201 states and 16252 transitions. [2022-01-18 00:52:28,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 00:52:28,199 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:52:28,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:52:28,207 INFO L225 Difference]: With dead ends: 6201 [2022-01-18 00:52:28,207 INFO L226 Difference]: Without dead ends: 5944 [2022-01-18 00:52:28,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=958, Invalid=2824, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 00:52:28,207 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 979 mSDsluCounter, 9190 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 9530 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:52:28,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [979 Valid, 9530 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:52:28,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2022-01-18 00:52:28,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5440. [2022-01-18 00:52:28,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.624563338849053) internal successors, (14275), 5439 states have internal predecessors, (14275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:28,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14275 transitions. [2022-01-18 00:52:28,260 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14275 transitions. Word has length 137 [2022-01-18 00:52:28,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:52:28,260 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14275 transitions. [2022-01-18 00:52:28,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:28,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14275 transitions. [2022-01-18 00:52:28,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:52:28,265 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:52:28,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:52:28,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-01-18 00:52:28,266 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:52:28,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:52:28,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1815915453, now seen corresponding path program 47 times [2022-01-18 00:52:28,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:52:28,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729495976] [2022-01-18 00:52:28,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:52:28,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:52:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:52:28,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:52:28,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:52:28,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729495976] [2022-01-18 00:52:28,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729495976] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:52:28,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:52:28,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:52:28,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646047597] [2022-01-18 00:52:28,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:52:28,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:52:28,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:52:28,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:52:28,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:52:28,694 INFO L87 Difference]: Start difference. First operand 5440 states and 14275 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:34,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:52:34,415 INFO L93 Difference]: Finished difference Result 6172 states and 16170 transitions. [2022-01-18 00:52:34,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:52:34,415 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:52:34,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:52:34,421 INFO L225 Difference]: With dead ends: 6172 [2022-01-18 00:52:34,421 INFO L226 Difference]: Without dead ends: 5828 [2022-01-18 00:52:34,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=996, Invalid=3294, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:52:34,422 INFO L933 BasicCegarLoop]: 524 mSDtfsCounter, 950 mSDsluCounter, 8565 mSDsCounter, 0 mSdLazyCounter, 1798 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 8926 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:52:34,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [950 Valid, 8926 Invalid, 1801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1798 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:52:34,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5828 states. [2022-01-18 00:52:34,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5828 to 5356. [2022-01-18 00:52:34,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5356 states, 5355 states have (on average 2.637535014005602) internal successors, (14124), 5355 states have internal predecessors, (14124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:34,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5356 states to 5356 states and 14124 transitions. [2022-01-18 00:52:34,468 INFO L78 Accepts]: Start accepts. Automaton has 5356 states and 14124 transitions. Word has length 137 [2022-01-18 00:52:34,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:52:34,469 INFO L470 AbstractCegarLoop]: Abstraction has 5356 states and 14124 transitions. [2022-01-18 00:52:34,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:34,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5356 states and 14124 transitions. [2022-01-18 00:52:34,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:52:34,473 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:52:34,473 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:52:34,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-01-18 00:52:34,473 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:52:34,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:52:34,474 INFO L85 PathProgramCache]: Analyzing trace with hash -332532207, now seen corresponding path program 48 times [2022-01-18 00:52:34,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:52:34,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786216225] [2022-01-18 00:52:34,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:52:34,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:52:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:52:34,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:52:34,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:52:34,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786216225] [2022-01-18 00:52:34,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786216225] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:52:34,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:52:34,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:52:34,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106390932] [2022-01-18 00:52:34,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:52:34,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:52:34,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:52:34,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:52:34,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:52:34,989 INFO L87 Difference]: Start difference. First operand 5356 states and 14124 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:41,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:52:41,051 INFO L93 Difference]: Finished difference Result 7132 states and 18616 transitions. [2022-01-18 00:52:41,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-18 00:52:41,052 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:52:41,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:52:41,060 INFO L225 Difference]: With dead ends: 7132 [2022-01-18 00:52:41,060 INFO L226 Difference]: Without dead ends: 6283 [2022-01-18 00:52:41,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2154 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=2362, Invalid=7144, Unknown=0, NotChecked=0, Total=9506 [2022-01-18 00:52:41,061 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 1615 mSDsluCounter, 9321 mSDsCounter, 0 mSdLazyCounter, 1958 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 9682 SdHoareTripleChecker+Invalid, 1961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 00:52:41,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1615 Valid, 9682 Invalid, 1961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1958 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 00:52:41,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6283 states. [2022-01-18 00:52:41,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6283 to 5412. [2022-01-18 00:52:41,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5412 states, 5411 states have (on average 2.629088892995749) internal successors, (14226), 5411 states have internal predecessors, (14226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:41,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5412 states to 5412 states and 14226 transitions. [2022-01-18 00:52:41,115 INFO L78 Accepts]: Start accepts. Automaton has 5412 states and 14226 transitions. Word has length 137 [2022-01-18 00:52:41,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:52:41,115 INFO L470 AbstractCegarLoop]: Abstraction has 5412 states and 14226 transitions. [2022-01-18 00:52:41,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:41,115 INFO L276 IsEmpty]: Start isEmpty. Operand 5412 states and 14226 transitions. [2022-01-18 00:52:41,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:52:41,119 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:52:41,119 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:52:41,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-01-18 00:52:41,119 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:52:41,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:52:41,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1888595271, now seen corresponding path program 49 times [2022-01-18 00:52:41,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:52:41,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026090808] [2022-01-18 00:52:41,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:52:41,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:52:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:52:41,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:52:41,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:52:41,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026090808] [2022-01-18 00:52:41,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026090808] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:52:41,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:52:41,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:52:41,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282916218] [2022-01-18 00:52:41,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:52:41,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:52:41,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:52:41,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:52:41,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:52:41,618 INFO L87 Difference]: Start difference. First operand 5412 states and 14226 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:48,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:52:48,939 INFO L93 Difference]: Finished difference Result 6698 states and 17458 transitions. [2022-01-18 00:52:48,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 00:52:48,940 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:52:48,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:52:48,946 INFO L225 Difference]: With dead ends: 6698 [2022-01-18 00:52:48,947 INFO L226 Difference]: Without dead ends: 6252 [2022-01-18 00:52:48,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1884 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=2091, Invalid=6651, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 00:52:48,947 INFO L933 BasicCegarLoop]: 568 mSDtfsCounter, 1539 mSDsluCounter, 10065 mSDsCounter, 0 mSdLazyCounter, 2039 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 10386 SdHoareTripleChecker+Invalid, 2042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 00:52:48,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1539 Valid, 10386 Invalid, 2042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2039 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 00:52:48,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6252 states. [2022-01-18 00:52:48,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6252 to 5416. [2022-01-18 00:52:48,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 5415 states have (on average 2.6284395198522623) internal successors, (14233), 5415 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:48,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 14233 transitions. [2022-01-18 00:52:48,997 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 14233 transitions. Word has length 137 [2022-01-18 00:52:48,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:52:48,997 INFO L470 AbstractCegarLoop]: Abstraction has 5416 states and 14233 transitions. [2022-01-18 00:52:48,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:48,998 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 14233 transitions. [2022-01-18 00:52:49,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:52:49,002 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:52:49,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:52:49,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-01-18 00:52:49,002 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:52:49,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:52:49,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1299734857, now seen corresponding path program 50 times [2022-01-18 00:52:49,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:52:49,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061861147] [2022-01-18 00:52:49,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:52:49,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:52:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:52:49,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:52:49,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:52:49,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061861147] [2022-01-18 00:52:49,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061861147] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:52:49,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:52:49,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:52:49,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943148184] [2022-01-18 00:52:49,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:52:49,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:52:49,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:52:49,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:52:49,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:52:49,493 INFO L87 Difference]: Start difference. First operand 5416 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:54,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:52:54,814 INFO L93 Difference]: Finished difference Result 6460 states and 16911 transitions. [2022-01-18 00:52:54,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 00:52:54,815 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:52:54,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:52:54,822 INFO L225 Difference]: With dead ends: 6460 [2022-01-18 00:52:54,822 INFO L226 Difference]: Without dead ends: 6045 [2022-01-18 00:52:54,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1677 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1840, Invalid=6170, Unknown=0, NotChecked=0, Total=8010 [2022-01-18 00:52:54,824 INFO L933 BasicCegarLoop]: 560 mSDtfsCounter, 1227 mSDsluCounter, 9797 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 10128 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 00:52:54,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1227 Valid, 10128 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 00:52:54,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6045 states. [2022-01-18 00:52:54,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6045 to 5428. [2022-01-18 00:52:54,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 5427 states have (on average 2.626497143910079) internal successors, (14254), 5427 states have internal predecessors, (14254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:54,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 14254 transitions. [2022-01-18 00:52:54,881 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 14254 transitions. Word has length 137 [2022-01-18 00:52:54,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:52:54,882 INFO L470 AbstractCegarLoop]: Abstraction has 5428 states and 14254 transitions. [2022-01-18 00:52:54,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:52:54,882 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 14254 transitions. [2022-01-18 00:52:54,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:52:54,886 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:52:54,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:52:54,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-01-18 00:52:54,888 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:52:54,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:52:54,888 INFO L85 PathProgramCache]: Analyzing trace with hash 531591037, now seen corresponding path program 51 times [2022-01-18 00:52:54,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:52:54,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566383557] [2022-01-18 00:52:54,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:52:54,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:52:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:52:55,484 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 00:52:55,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:52:55,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566383557] [2022-01-18 00:52:55,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566383557] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:52:55,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:52:55,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:52:55,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067569263] [2022-01-18 00:52:55,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:52:55,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:52:55,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:52:55,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:52:55,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:52:55,485 INFO L87 Difference]: Start difference. First operand 5428 states and 14254 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:00,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:53:00,569 INFO L93 Difference]: Finished difference Result 6305 states and 16504 transitions. [2022-01-18 00:53:00,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 00:53:00,569 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:53:00,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:53:00,576 INFO L225 Difference]: With dead ends: 6305 [2022-01-18 00:53:00,576 INFO L226 Difference]: Without dead ends: 5983 [2022-01-18 00:53:00,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1336 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1506, Invalid=5136, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 00:53:00,577 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 1147 mSDsluCounter, 8875 mSDsCounter, 0 mSdLazyCounter, 1849 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 9237 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:53:00,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1147 Valid, 9237 Invalid, 1852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1849 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:53:00,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5983 states. [2022-01-18 00:53:00,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5983 to 5432. [2022-01-18 00:53:00,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.6258515927085253) internal successors, (14261), 5431 states have internal predecessors, (14261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:00,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14261 transitions. [2022-01-18 00:53:00,636 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14261 transitions. Word has length 137 [2022-01-18 00:53:00,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:53:00,636 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14261 transitions. [2022-01-18 00:53:00,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:00,637 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14261 transitions. [2022-01-18 00:53:00,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:53:00,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:53:00,642 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:53:00,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-01-18 00:53:00,642 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:53:00,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:53:00,642 INFO L85 PathProgramCache]: Analyzing trace with hash 827193873, now seen corresponding path program 52 times [2022-01-18 00:53:00,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:53:00,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045571799] [2022-01-18 00:53:00,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:53:00,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:53:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:53:01,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:53:01,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:53:01,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045571799] [2022-01-18 00:53:01,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045571799] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:53:01,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:53:01,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:53:01,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881815444] [2022-01-18 00:53:01,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:53:01,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:53:01,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:53:01,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:53:01,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:53:01,161 INFO L87 Difference]: Start difference. First operand 5432 states and 14261 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:05,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:53:05,600 INFO L93 Difference]: Finished difference Result 6212 states and 16263 transitions. [2022-01-18 00:53:05,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 00:53:05,600 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:53:05,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:53:05,607 INFO L225 Difference]: With dead ends: 6212 [2022-01-18 00:53:05,607 INFO L226 Difference]: Without dead ends: 5921 [2022-01-18 00:53:05,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 922 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1218, Invalid=4184, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 00:53:05,608 INFO L933 BasicCegarLoop]: 543 mSDtfsCounter, 1050 mSDsluCounter, 9326 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 9679 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:53:05,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1050 Valid, 9679 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:53:05,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5921 states. [2022-01-18 00:53:05,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5921 to 5436. [2022-01-18 00:53:05,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.625206991720331) internal successors, (14268), 5435 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:05,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14268 transitions. [2022-01-18 00:53:05,660 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14268 transitions. Word has length 137 [2022-01-18 00:53:05,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:53:05,660 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14268 transitions. [2022-01-18 00:53:05,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:05,660 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14268 transitions. [2022-01-18 00:53:05,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:53:05,664 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:53:05,664 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:53:05,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-01-18 00:53:05,665 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:53:05,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:53:05,665 INFO L85 PathProgramCache]: Analyzing trace with hash 409012219, now seen corresponding path program 53 times [2022-01-18 00:53:05,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:53:05,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108054940] [2022-01-18 00:53:05,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:53:05,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:53:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:53:06,223 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 00:53:06,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:53:06,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108054940] [2022-01-18 00:53:06,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108054940] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:53:06,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:53:06,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:53:06,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295363282] [2022-01-18 00:53:06,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:53:06,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:53:06,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:53:06,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:53:06,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:53:06,225 INFO L87 Difference]: Start difference. First operand 5436 states and 14268 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:15,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:53:15,259 INFO L93 Difference]: Finished difference Result 6057 states and 15864 transitions. [2022-01-18 00:53:15,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 00:53:15,259 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:53:15,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:53:15,265 INFO L225 Difference]: With dead ends: 6057 [2022-01-18 00:53:15,265 INFO L226 Difference]: Without dead ends: 5800 [2022-01-18 00:53:15,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=956, Invalid=2826, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 00:53:15,265 INFO L933 BasicCegarLoop]: 528 mSDtfsCounter, 953 mSDsluCounter, 9224 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 9579 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:53:15,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [953 Valid, 9579 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:53:15,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5800 states. [2022-01-18 00:53:15,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5800 to 5440. [2022-01-18 00:53:15,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.624563338849053) internal successors, (14275), 5439 states have internal predecessors, (14275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:15,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14275 transitions. [2022-01-18 00:53:15,315 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14275 transitions. Word has length 137 [2022-01-18 00:53:15,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:53:15,315 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14275 transitions. [2022-01-18 00:53:15,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:15,315 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14275 transitions. [2022-01-18 00:53:15,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:53:15,320 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:53:15,320 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:53:15,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-01-18 00:53:15,320 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:53:15,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:53:15,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1901833653, now seen corresponding path program 54 times [2022-01-18 00:53:15,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:53:15,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191933374] [2022-01-18 00:53:15,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:53:15,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:53:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:53:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:53:15,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:53:15,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191933374] [2022-01-18 00:53:15,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191933374] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:53:15,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:53:15,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:53:15,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002592833] [2022-01-18 00:53:15,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:53:15,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:53:15,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:53:15,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:53:15,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:53:15,831 INFO L87 Difference]: Start difference. First operand 5440 states and 14275 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:19,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:53:19,725 INFO L93 Difference]: Finished difference Result 6060 states and 15866 transitions. [2022-01-18 00:53:19,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:53:19,726 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:53:19,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:53:19,733 INFO L225 Difference]: With dead ends: 6060 [2022-01-18 00:53:19,733 INFO L226 Difference]: Without dead ends: 5720 [2022-01-18 00:53:19,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=984, Invalid=3306, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:53:19,733 INFO L933 BasicCegarLoop]: 529 mSDtfsCounter, 1065 mSDsluCounter, 7998 mSDsCounter, 0 mSdLazyCounter, 1690 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 8384 SdHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:53:19,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1065 Valid, 8384 Invalid, 1693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1690 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:53:19,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5720 states. [2022-01-18 00:53:19,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5720 to 5360. [2022-01-18 00:53:19,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5359 states have (on average 2.636872550849039) internal successors, (14131), 5359 states have internal predecessors, (14131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:19,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 14131 transitions. [2022-01-18 00:53:19,793 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 14131 transitions. Word has length 137 [2022-01-18 00:53:19,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:53:19,793 INFO L470 AbstractCegarLoop]: Abstraction has 5360 states and 14131 transitions. [2022-01-18 00:53:19,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:19,793 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 14131 transitions. [2022-01-18 00:53:19,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:53:19,798 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:53:19,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:53:19,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-01-18 00:53:19,799 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:53:19,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:53:19,799 INFO L85 PathProgramCache]: Analyzing trace with hash 2101574831, now seen corresponding path program 55 times [2022-01-18 00:53:19,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:53:19,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862930097] [2022-01-18 00:53:19,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:53:19,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:53:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:53:20,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:53:20,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:53:20,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862930097] [2022-01-18 00:53:20,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862930097] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:53:20,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:53:20,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:53:20,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956796697] [2022-01-18 00:53:20,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:53:20,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:53:20,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:53:20,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:53:20,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:53:20,146 INFO L87 Difference]: Start difference. First operand 5360 states and 14131 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:26,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:53:26,064 INFO L93 Difference]: Finished difference Result 6376 states and 16694 transitions. [2022-01-18 00:53:26,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 00:53:26,064 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:53:26,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:53:26,070 INFO L225 Difference]: With dead ends: 6376 [2022-01-18 00:53:26,070 INFO L226 Difference]: Without dead ends: 5450 [2022-01-18 00:53:26,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2393 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=2648, Invalid=7654, Unknown=0, NotChecked=0, Total=10302 [2022-01-18 00:53:26,071 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 1507 mSDsluCounter, 9246 mSDsCounter, 0 mSdLazyCounter, 1899 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 9577 SdHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:53:26,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1507 Valid, 9577 Invalid, 1902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1899 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:53:26,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5450 states. [2022-01-18 00:53:26,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5450 to 5314. [2022-01-18 00:53:26,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5314 states, 5313 states have (on average 2.6405044231131187) internal successors, (14029), 5313 states have internal predecessors, (14029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:26,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5314 states to 5314 states and 14029 transitions. [2022-01-18 00:53:26,119 INFO L78 Accepts]: Start accepts. Automaton has 5314 states and 14029 transitions. Word has length 137 [2022-01-18 00:53:26,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:53:26,119 INFO L470 AbstractCegarLoop]: Abstraction has 5314 states and 14029 transitions. [2022-01-18 00:53:26,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:26,119 INFO L276 IsEmpty]: Start isEmpty. Operand 5314 states and 14029 transitions. [2022-01-18 00:53:26,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:53:26,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:53:26,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:53:26,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-01-18 00:53:26,124 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:53:26,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:53:26,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1776317311, now seen corresponding path program 56 times [2022-01-18 00:53:26,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:53:26,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639488274] [2022-01-18 00:53:26,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:53:26,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:53:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:53:26,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:53:26,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:53:26,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639488274] [2022-01-18 00:53:26,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639488274] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:53:26,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:53:26,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:53:26,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951063077] [2022-01-18 00:53:26,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:53:26,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:53:26,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:53:26,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:53:26,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:53:26,648 INFO L87 Difference]: Start difference. First operand 5314 states and 14029 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:33,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:53:33,262 INFO L93 Difference]: Finished difference Result 7714 states and 20217 transitions. [2022-01-18 00:53:33,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-18 00:53:33,263 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:53:33,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:53:33,270 INFO L225 Difference]: With dead ends: 7714 [2022-01-18 00:53:33,270 INFO L226 Difference]: Without dead ends: 6865 [2022-01-18 00:53:33,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2018 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=2445, Invalid=7061, Unknown=0, NotChecked=0, Total=9506 [2022-01-18 00:53:33,271 INFO L933 BasicCegarLoop]: 571 mSDtfsCounter, 1576 mSDsluCounter, 10139 mSDsCounter, 0 mSdLazyCounter, 2204 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1576 SdHoareTripleChecker+Valid, 10460 SdHoareTripleChecker+Invalid, 2207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 00:53:33,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1576 Valid, 10460 Invalid, 2207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2204 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 00:53:33,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6865 states. [2022-01-18 00:53:33,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6865 to 5486. [2022-01-18 00:53:33,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5486 states, 5485 states have (on average 2.634457611668186) internal successors, (14450), 5485 states have internal predecessors, (14450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:33,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5486 states to 5486 states and 14450 transitions. [2022-01-18 00:53:33,322 INFO L78 Accepts]: Start accepts. Automaton has 5486 states and 14450 transitions. Word has length 137 [2022-01-18 00:53:33,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:53:33,322 INFO L470 AbstractCegarLoop]: Abstraction has 5486 states and 14450 transitions. [2022-01-18 00:53:33,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:33,322 INFO L276 IsEmpty]: Start isEmpty. Operand 5486 states and 14450 transitions. [2022-01-18 00:53:33,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:53:33,327 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:53:33,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:53:33,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-01-18 00:53:33,327 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:53:33,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:53:33,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1890609603, now seen corresponding path program 57 times [2022-01-18 00:53:33,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:53:33,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651267242] [2022-01-18 00:53:33,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:53:33,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:53:33,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:53:33,770 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 00:53:33,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:53:33,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651267242] [2022-01-18 00:53:33,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651267242] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:53:33,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:53:33,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:53:33,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919157909] [2022-01-18 00:53:33,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:53:33,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:53:33,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:53:33,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:53:33,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:53:33,772 INFO L87 Difference]: Start difference. First operand 5486 states and 14450 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:39,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:53:39,326 INFO L93 Difference]: Finished difference Result 7448 states and 19509 transitions. [2022-01-18 00:53:39,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 00:53:39,326 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:53:39,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:53:39,335 INFO L225 Difference]: With dead ends: 7448 [2022-01-18 00:53:39,335 INFO L226 Difference]: Without dead ends: 7002 [2022-01-18 00:53:39,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1912 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=2171, Invalid=6571, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 00:53:39,336 INFO L933 BasicCegarLoop]: 556 mSDtfsCounter, 1493 mSDsluCounter, 8774 mSDsCounter, 0 mSdLazyCounter, 1959 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 9131 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:53:39,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1493 Valid, 9131 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1959 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:53:39,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7002 states. [2022-01-18 00:53:39,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7002 to 5490. [2022-01-18 00:53:39,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5490 states, 5489 states have (on average 2.6338130807068683) internal successors, (14457), 5489 states have internal predecessors, (14457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:39,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5490 states to 5490 states and 14457 transitions. [2022-01-18 00:53:39,394 INFO L78 Accepts]: Start accepts. Automaton has 5490 states and 14457 transitions. Word has length 137 [2022-01-18 00:53:39,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:53:39,394 INFO L470 AbstractCegarLoop]: Abstraction has 5490 states and 14457 transitions. [2022-01-18 00:53:39,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:39,394 INFO L276 IsEmpty]: Start isEmpty. Operand 5490 states and 14457 transitions. [2022-01-18 00:53:39,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:53:39,399 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:53:39,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:53:39,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-01-18 00:53:39,399 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:53:39,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:53:39,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1301749189, now seen corresponding path program 58 times [2022-01-18 00:53:39,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:53:39,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216983871] [2022-01-18 00:53:39,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:53:39,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:53:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:53:39,918 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 00:53:39,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:53:39,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216983871] [2022-01-18 00:53:39,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216983871] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:53:39,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:53:39,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:53:39,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737151425] [2022-01-18 00:53:39,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:53:39,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:53:39,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:53:39,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:53:39,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:53:39,919 INFO L87 Difference]: Start difference. First operand 5490 states and 14457 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:45,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:53:45,462 INFO L93 Difference]: Finished difference Result 7222 states and 18991 transitions. [2022-01-18 00:53:45,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 00:53:45,462 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:53:45,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:53:45,470 INFO L225 Difference]: With dead ends: 7222 [2022-01-18 00:53:45,470 INFO L226 Difference]: Without dead ends: 6807 [2022-01-18 00:53:45,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1633 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1909, Invalid=6101, Unknown=0, NotChecked=0, Total=8010 [2022-01-18 00:53:45,471 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 1250 mSDsluCounter, 9202 mSDsCounter, 0 mSdLazyCounter, 2068 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 9548 SdHoareTripleChecker+Invalid, 2071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 00:53:45,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1250 Valid, 9548 Invalid, 2071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2068 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 00:53:45,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6807 states. [2022-01-18 00:53:45,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6807 to 5502. [2022-01-18 00:53:45,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5502 states, 5501 states have (on average 2.631885111797855) internal successors, (14478), 5501 states have internal predecessors, (14478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:45,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5502 states to 5502 states and 14478 transitions. [2022-01-18 00:53:45,531 INFO L78 Accepts]: Start accepts. Automaton has 5502 states and 14478 transitions. Word has length 137 [2022-01-18 00:53:45,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:53:45,531 INFO L470 AbstractCegarLoop]: Abstraction has 5502 states and 14478 transitions. [2022-01-18 00:53:45,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:45,531 INFO L276 IsEmpty]: Start isEmpty. Operand 5502 states and 14478 transitions. [2022-01-18 00:53:45,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:53:45,537 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:53:45,537 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:53:45,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-01-18 00:53:45,537 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:53:45,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:53:45,537 INFO L85 PathProgramCache]: Analyzing trace with hash 529576705, now seen corresponding path program 59 times [2022-01-18 00:53:45,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:53:45,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920409703] [2022-01-18 00:53:45,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:53:45,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:53:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:53:46,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:53:46,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:53:46,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920409703] [2022-01-18 00:53:46,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920409703] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:53:46,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:53:46,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:53:46,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783308815] [2022-01-18 00:53:46,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:53:46,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:53:46,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:53:46,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:53:46,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:53:46,084 INFO L87 Difference]: Start difference. First operand 5502 states and 14478 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:52,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:53:52,043 INFO L93 Difference]: Finished difference Result 7071 states and 18595 transitions. [2022-01-18 00:53:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 00:53:52,043 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:53:52,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:53:52,052 INFO L225 Difference]: With dead ends: 7071 [2022-01-18 00:53:52,052 INFO L226 Difference]: Without dead ends: 6749 [2022-01-18 00:53:52,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1240 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1556, Invalid=5086, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 00:53:52,053 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 1110 mSDsluCounter, 9222 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 9568 SdHoareTripleChecker+Invalid, 2052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:53:52,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1110 Valid, 9568 Invalid, 2052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 00:53:52,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6749 states. [2022-01-18 00:53:52,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6749 to 5506. [2022-01-18 00:53:52,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5506 states, 5505 states have (on average 2.631244323342416) internal successors, (14485), 5505 states have internal predecessors, (14485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:52,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5506 states to 5506 states and 14485 transitions. [2022-01-18 00:53:52,117 INFO L78 Accepts]: Start accepts. Automaton has 5506 states and 14485 transitions. Word has length 137 [2022-01-18 00:53:52,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:53:52,118 INFO L470 AbstractCegarLoop]: Abstraction has 5506 states and 14485 transitions. [2022-01-18 00:53:52,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:52,118 INFO L276 IsEmpty]: Start isEmpty. Operand 5506 states and 14485 transitions. [2022-01-18 00:53:52,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:53:52,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:53:52,123 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:53:52,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-01-18 00:53:52,123 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:53:52,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:53:52,123 INFO L85 PathProgramCache]: Analyzing trace with hash 825179541, now seen corresponding path program 60 times [2022-01-18 00:53:52,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:53:52,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842053151] [2022-01-18 00:53:52,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:53:52,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:53:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:53:52,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:53:52,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:53:52,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842053151] [2022-01-18 00:53:52,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842053151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:53:52,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:53:52,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:53:52,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097050395] [2022-01-18 00:53:52,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:53:52,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:53:52,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:53:52,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:53:52,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:53:52,592 INFO L87 Difference]: Start difference. First operand 5506 states and 14485 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:58,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:53:58,232 INFO L93 Difference]: Finished difference Result 6982 states and 18365 transitions. [2022-01-18 00:53:58,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 00:53:58,232 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:53:58,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:53:58,240 INFO L225 Difference]: With dead ends: 6982 [2022-01-18 00:53:58,240 INFO L226 Difference]: Without dead ends: 6691 [2022-01-18 00:53:58,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 894 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1255, Invalid=4147, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 00:53:58,247 INFO L933 BasicCegarLoop]: 530 mSDtfsCounter, 1066 mSDsluCounter, 9092 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 9444 SdHoareTripleChecker+Invalid, 2030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:53:58,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1066 Valid, 9444 Invalid, 2030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2027 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 00:53:58,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6691 states. [2022-01-18 00:53:58,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6691 to 5510. [2022-01-18 00:53:58,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5510 states, 5509 states have (on average 2.6306044654202214) internal successors, (14492), 5509 states have internal predecessors, (14492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:58,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5510 states to 5510 states and 14492 transitions. [2022-01-18 00:53:58,313 INFO L78 Accepts]: Start accepts. Automaton has 5510 states and 14492 transitions. Word has length 137 [2022-01-18 00:53:58,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:53:58,313 INFO L470 AbstractCegarLoop]: Abstraction has 5510 states and 14492 transitions. [2022-01-18 00:53:58,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:53:58,313 INFO L276 IsEmpty]: Start isEmpty. Operand 5510 states and 14492 transitions. [2022-01-18 00:53:58,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:53:58,324 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:53:58,324 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:53:58,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-01-18 00:53:58,325 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:53:58,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:53:58,325 INFO L85 PathProgramCache]: Analyzing trace with hash 406997887, now seen corresponding path program 61 times [2022-01-18 00:53:58,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:53:58,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196192729] [2022-01-18 00:53:58,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:53:58,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:53:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:53:59,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:53:59,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:53:59,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196192729] [2022-01-18 00:53:59,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196192729] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:53:59,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:53:59,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:53:59,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819402294] [2022-01-18 00:53:59,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:53:59,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:53:59,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:53:59,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:53:59,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:53:59,072 INFO L87 Difference]: Start difference. First operand 5510 states and 14492 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:03,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:54:03,395 INFO L93 Difference]: Finished difference Result 6839 states and 17999 transitions. [2022-01-18 00:54:03,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 00:54:03,395 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:54:03,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:54:03,403 INFO L225 Difference]: With dead ends: 6839 [2022-01-18 00:54:03,403 INFO L226 Difference]: Without dead ends: 6582 [2022-01-18 00:54:03,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=958, Invalid=2824, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 00:54:03,404 INFO L933 BasicCegarLoop]: 514 mSDtfsCounter, 1032 mSDsluCounter, 8708 mSDsCounter, 0 mSdLazyCounter, 1920 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 9072 SdHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 00:54:03,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 9072 Invalid, 1923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1920 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 00:54:03,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6582 states. [2022-01-18 00:54:03,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6582 to 5514. [2022-01-18 00:54:03,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5514 states, 5513 states have (on average 2.6299655360058045) internal successors, (14499), 5513 states have internal predecessors, (14499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:03,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5514 states to 5514 states and 14499 transitions. [2022-01-18 00:54:03,458 INFO L78 Accepts]: Start accepts. Automaton has 5514 states and 14499 transitions. Word has length 137 [2022-01-18 00:54:03,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:54:03,459 INFO L470 AbstractCegarLoop]: Abstraction has 5514 states and 14499 transitions. [2022-01-18 00:54:03,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:03,459 INFO L276 IsEmpty]: Start isEmpty. Operand 5514 states and 14499 transitions. [2022-01-18 00:54:03,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:54:03,463 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:54:03,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:54:03,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-01-18 00:54:03,463 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:54:03,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:54:03,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1899819321, now seen corresponding path program 62 times [2022-01-18 00:54:03,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:54:03,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473247237] [2022-01-18 00:54:03,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:54:03,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:54:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:54:04,016 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 00:54:04,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:54:04,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473247237] [2022-01-18 00:54:04,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473247237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:54:04,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:54:04,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:54:04,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728148545] [2022-01-18 00:54:04,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:54:04,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:54:04,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:54:04,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:54:04,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:54:04,017 INFO L87 Difference]: Start difference. First operand 5514 states and 14499 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:08,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:54:08,192 INFO L93 Difference]: Finished difference Result 6810 states and 17917 transitions. [2022-01-18 00:54:08,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:54:08,192 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:54:08,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:54:08,198 INFO L225 Difference]: With dead ends: 6810 [2022-01-18 00:54:08,199 INFO L226 Difference]: Without dead ends: 6470 [2022-01-18 00:54:08,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1002, Invalid=3288, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:54:08,199 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 1006 mSDsluCounter, 9327 mSDsCounter, 0 mSdLazyCounter, 2050 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 9675 SdHoareTripleChecker+Invalid, 2053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:54:08,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1006 Valid, 9675 Invalid, 2053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2050 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:54:08,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6470 states. [2022-01-18 00:54:08,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6470 to 5434. [2022-01-18 00:54:08,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 5433 states have (on average 2.6333517393705135) internal successors, (14307), 5433 states have internal predecessors, (14307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:08,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 14307 transitions. [2022-01-18 00:54:08,260 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 14307 transitions. Word has length 137 [2022-01-18 00:54:08,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:54:08,260 INFO L470 AbstractCegarLoop]: Abstraction has 5434 states and 14307 transitions. [2022-01-18 00:54:08,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:08,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 14307 transitions. [2022-01-18 00:54:08,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:54:08,265 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:54:08,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:54:08,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-01-18 00:54:08,265 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:54:08,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:54:08,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1050393517, now seen corresponding path program 63 times [2022-01-18 00:54:08,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:54:08,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222932305] [2022-01-18 00:54:08,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:54:08,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:54:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:54:08,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:54:08,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:54:08,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222932305] [2022-01-18 00:54:08,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222932305] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:54:08,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:54:08,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:54:08,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504524103] [2022-01-18 00:54:08,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:54:08,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:54:08,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:54:08,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:54:08,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:54:08,841 INFO L87 Difference]: Start difference. First operand 5434 states and 14307 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:13,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:54:13,595 INFO L93 Difference]: Finished difference Result 7195 states and 18944 transitions. [2022-01-18 00:54:13,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 00:54:13,595 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:54:13,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:54:13,605 INFO L225 Difference]: With dead ends: 7195 [2022-01-18 00:54:13,605 INFO L226 Difference]: Without dead ends: 6873 [2022-01-18 00:54:13,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1177 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1559, Invalid=4921, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 00:54:13,606 INFO L933 BasicCegarLoop]: 526 mSDtfsCounter, 1146 mSDsluCounter, 8879 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 9216 SdHoareTripleChecker+Invalid, 1992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:54:13,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1146 Valid, 9216 Invalid, 1992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:54:13,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6873 states. [2022-01-18 00:54:13,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6873 to 5458. [2022-01-18 00:54:13,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.6331317573758475) internal successors, (14369), 5457 states have internal predecessors, (14369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:13,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14369 transitions. [2022-01-18 00:54:13,668 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14369 transitions. Word has length 137 [2022-01-18 00:54:13,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:54:13,668 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14369 transitions. [2022-01-18 00:54:13,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:13,668 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14369 transitions. [2022-01-18 00:54:13,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:54:13,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:54:13,672 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:54:13,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-01-18 00:54:13,673 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:54:13,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:54:13,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1345996353, now seen corresponding path program 64 times [2022-01-18 00:54:13,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:54:13,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312511284] [2022-01-18 00:54:13,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:54:13,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:54:13,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:54:14,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:54:14,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:54:14,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312511284] [2022-01-18 00:54:14,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312511284] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:54:14,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:54:14,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:54:14,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001904310] [2022-01-18 00:54:14,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:54:14,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:54:14,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:54:14,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:54:14,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:54:14,222 INFO L87 Difference]: Start difference. First operand 5458 states and 14369 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:18,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:54:18,856 INFO L93 Difference]: Finished difference Result 7138 states and 18802 transitions. [2022-01-18 00:54:18,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 00:54:18,856 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:54:18,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:54:18,863 INFO L225 Difference]: With dead ends: 7138 [2022-01-18 00:54:18,863 INFO L226 Difference]: Without dead ends: 6847 [2022-01-18 00:54:18,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 879 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1284, Invalid=4118, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 00:54:18,864 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 1135 mSDsluCounter, 8706 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 9055 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:54:18,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1135 Valid, 9055 Invalid, 1977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:54:18,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6847 states. [2022-01-18 00:54:18,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6847 to 5462. [2022-01-18 00:54:18,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.6324848928767626) internal successors, (14376), 5461 states have internal predecessors, (14376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:18,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14376 transitions. [2022-01-18 00:54:18,922 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14376 transitions. Word has length 137 [2022-01-18 00:54:18,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:54:18,922 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14376 transitions. [2022-01-18 00:54:18,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:18,922 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14376 transitions. [2022-01-18 00:54:18,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:54:18,928 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:54:18,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:54:18,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-01-18 00:54:18,928 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:54:18,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:54:18,929 INFO L85 PathProgramCache]: Analyzing trace with hash 927814699, now seen corresponding path program 65 times [2022-01-18 00:54:18,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:54:18,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943521333] [2022-01-18 00:54:18,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:54:18,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:54:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:54:19,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:54:19,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:54:19,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943521333] [2022-01-18 00:54:19,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943521333] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:54:19,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:54:19,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:54:19,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169595787] [2022-01-18 00:54:19,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:54:19,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:54:19,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:54:19,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:54:19,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:54:19,285 INFO L87 Difference]: Start difference. First operand 5462 states and 14376 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:22,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:54:22,846 INFO L93 Difference]: Finished difference Result 7035 states and 18538 transitions. [2022-01-18 00:54:22,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 00:54:22,846 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:54:22,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:54:22,855 INFO L225 Difference]: With dead ends: 7035 [2022-01-18 00:54:22,855 INFO L226 Difference]: Without dead ends: 6778 [2022-01-18 00:54:22,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1028, Invalid=3004, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 00:54:22,856 INFO L933 BasicCegarLoop]: 508 mSDtfsCounter, 998 mSDsluCounter, 8603 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 8961 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:54:22,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [998 Valid, 8961 Invalid, 1936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:54:22,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6778 states. [2022-01-18 00:54:22,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6778 to 5466. [2022-01-18 00:54:22,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.6318389752973466) internal successors, (14383), 5465 states have internal predecessors, (14383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:22,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14383 transitions. [2022-01-18 00:54:22,920 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14383 transitions. Word has length 137 [2022-01-18 00:54:22,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:54:22,921 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14383 transitions. [2022-01-18 00:54:22,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:22,921 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14383 transitions. [2022-01-18 00:54:22,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:54:22,926 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:54:22,926 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:54:22,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-01-18 00:54:22,926 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:54:22,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:54:22,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1874331163, now seen corresponding path program 66 times [2022-01-18 00:54:22,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:54:22,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753241430] [2022-01-18 00:54:22,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:54:22,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:54:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:54:23,286 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 00:54:23,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:54:23,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753241430] [2022-01-18 00:54:23,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753241430] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:54:23,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:54:23,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:54:23,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024978918] [2022-01-18 00:54:23,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:54:23,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:54:23,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:54:23,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:54:23,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:54:23,287 INFO L87 Difference]: Start difference. First operand 5466 states and 14383 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:27,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:54:27,674 INFO L93 Difference]: Finished difference Result 7006 states and 18456 transitions. [2022-01-18 00:54:27,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:54:27,674 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:54:27,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:54:27,683 INFO L225 Difference]: With dead ends: 7006 [2022-01-18 00:54:27,684 INFO L226 Difference]: Without dead ends: 6734 [2022-01-18 00:54:27,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1019, Invalid=3271, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:54:27,685 INFO L933 BasicCegarLoop]: 513 mSDtfsCounter, 1119 mSDsluCounter, 8504 mSDsCounter, 0 mSdLazyCounter, 1935 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 8865 SdHoareTripleChecker+Invalid, 1938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:54:27,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1119 Valid, 8865 Invalid, 1938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1935 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:54:27,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6734 states. [2022-01-18 00:54:27,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6734 to 5454. [2022-01-18 00:54:27,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 5453 states have (on average 2.6330460297084173) internal successors, (14358), 5453 states have internal predecessors, (14358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:27,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 14358 transitions. [2022-01-18 00:54:27,758 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 14358 transitions. Word has length 137 [2022-01-18 00:54:27,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:54:27,759 INFO L470 AbstractCegarLoop]: Abstraction has 5454 states and 14358 transitions. [2022-01-18 00:54:27,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:27,759 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 14358 transitions. [2022-01-18 00:54:27,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:54:27,764 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:54:27,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:54:27,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-01-18 00:54:27,765 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:54:27,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:54:27,765 INFO L85 PathProgramCache]: Analyzing trace with hash 640481925, now seen corresponding path program 67 times [2022-01-18 00:54:27,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:54:27,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376520868] [2022-01-18 00:54:27,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:54:27,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:54:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:54:28,308 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 00:54:28,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:54:28,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376520868] [2022-01-18 00:54:28,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376520868] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:54:28,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:54:28,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:54:28,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195229072] [2022-01-18 00:54:28,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:54:28,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:54:28,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:54:28,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:54:28,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:54:28,310 INFO L87 Difference]: Start difference. First operand 5454 states and 14358 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:34,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:54:34,137 INFO L93 Difference]: Finished difference Result 6951 states and 18315 transitions. [2022-01-18 00:54:34,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 00:54:34,137 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:54:34,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:54:34,146 INFO L225 Difference]: With dead ends: 6951 [2022-01-18 00:54:34,146 INFO L226 Difference]: Without dead ends: 6666 [2022-01-18 00:54:34,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1293, Invalid=3537, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 00:54:34,147 INFO L933 BasicCegarLoop]: 510 mSDtfsCounter, 984 mSDsluCounter, 8826 mSDsCounter, 0 mSdLazyCounter, 1944 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 9170 SdHoareTripleChecker+Invalid, 1947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:54:34,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 9170 Invalid, 1947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1944 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:54:34,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6666 states. [2022-01-18 00:54:34,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6666 to 5462. [2022-01-18 00:54:34,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.6324848928767626) internal successors, (14376), 5461 states have internal predecessors, (14376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:34,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14376 transitions. [2022-01-18 00:54:34,209 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14376 transitions. Word has length 137 [2022-01-18 00:54:34,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:54:34,209 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14376 transitions. [2022-01-18 00:54:34,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:34,209 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14376 transitions. [2022-01-18 00:54:34,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:54:34,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:54:34,214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:54:34,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-01-18 00:54:34,214 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:54:34,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:54:34,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1884444019, now seen corresponding path program 68 times [2022-01-18 00:54:34,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:54:34,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148529383] [2022-01-18 00:54:34,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:54:34,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:54:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:54:34,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:54:34,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:54:34,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148529383] [2022-01-18 00:54:34,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148529383] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:54:34,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:54:34,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:54:34,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410295276] [2022-01-18 00:54:34,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:54:34,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:54:34,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:54:34,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:54:34,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:54:34,740 INFO L87 Difference]: Start difference. First operand 5462 states and 14376 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:39,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:54:39,010 INFO L93 Difference]: Finished difference Result 6959 states and 18333 transitions. [2022-01-18 00:54:39,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:54:39,010 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:54:39,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:54:39,019 INFO L225 Difference]: With dead ends: 6959 [2022-01-18 00:54:39,019 INFO L226 Difference]: Without dead ends: 6702 [2022-01-18 00:54:39,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1107, Invalid=3183, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:54:39,020 INFO L933 BasicCegarLoop]: 510 mSDtfsCounter, 978 mSDsluCounter, 8078 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 8451 SdHoareTripleChecker+Invalid, 1822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:54:39,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 8451 Invalid, 1822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:54:39,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6702 states. [2022-01-18 00:54:39,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6702 to 5466. [2022-01-18 00:54:39,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.6318389752973466) internal successors, (14383), 5465 states have internal predecessors, (14383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:39,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14383 transitions. [2022-01-18 00:54:39,139 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14383 transitions. Word has length 137 [2022-01-18 00:54:39,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:54:39,139 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14383 transitions. [2022-01-18 00:54:39,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:39,139 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14383 transitions. [2022-01-18 00:54:39,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:54:39,145 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:54:39,146 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] [2022-01-18 00:54:39,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-01-18 00:54:39,146 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:54:39,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:54:39,147 INFO L85 PathProgramCache]: Analyzing trace with hash -917701843, now seen corresponding path program 69 times [2022-01-18 00:54:39,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:54:39,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010018191] [2022-01-18 00:54:39,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:54:39,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:54:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:54:39,663 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 00:54:39,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:54:39,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010018191] [2022-01-18 00:54:39,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010018191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:54:39,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:54:39,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:54:39,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976057426] [2022-01-18 00:54:39,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:54:39,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:54:39,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:54:39,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:54:39,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:54:39,664 INFO L87 Difference]: Start difference. First operand 5466 states and 14383 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:43,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:54:43,170 INFO L93 Difference]: Finished difference Result 6930 states and 18251 transitions. [2022-01-18 00:54:43,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 00:54:43,170 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:54:43,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:54:43,179 INFO L225 Difference]: With dead ends: 6930 [2022-01-18 00:54:43,179 INFO L226 Difference]: Without dead ends: 6662 [2022-01-18 00:54:43,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=987, Invalid=3173, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 00:54:43,180 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 966 mSDsluCounter, 8875 mSDsCounter, 0 mSdLazyCounter, 2005 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 966 SdHoareTripleChecker+Valid, 9227 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:54:43,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [966 Valid, 9227 Invalid, 2008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2005 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:54:43,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6662 states. [2022-01-18 00:54:43,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6662 to 5458. [2022-01-18 00:54:43,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.632398753894081) internal successors, (14365), 5457 states have internal predecessors, (14365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:43,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14365 transitions. [2022-01-18 00:54:43,247 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14365 transitions. Word has length 137 [2022-01-18 00:54:43,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:54:43,247 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14365 transitions. [2022-01-18 00:54:43,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:43,247 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14365 transitions. [2022-01-18 00:54:43,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:54:43,252 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:54:43,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:54:43,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-01-18 00:54:43,253 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:54:43,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:54:43,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1910020413, now seen corresponding path program 70 times [2022-01-18 00:54:43,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:54:43,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735213923] [2022-01-18 00:54:43,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:54:43,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:54:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:54:43,790 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 00:54:43,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:54:43,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735213923] [2022-01-18 00:54:43,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735213923] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:54:43,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:54:43,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:54:43,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298811201] [2022-01-18 00:54:43,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:54:43,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:54:43,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:54:43,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:54:43,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:54:43,791 INFO L87 Difference]: Start difference. First operand 5458 states and 14365 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:48,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:54:48,630 INFO L93 Difference]: Finished difference Result 7062 states and 18593 transitions. [2022-01-18 00:54:48,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 00:54:48,630 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:54:48,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:54:48,639 INFO L225 Difference]: With dead ends: 7062 [2022-01-18 00:54:48,640 INFO L226 Difference]: Without dead ends: 6771 [2022-01-18 00:54:48,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 894 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1254, Invalid=4002, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 00:54:48,641 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 1114 mSDsluCounter, 8469 mSDsCounter, 0 mSdLazyCounter, 1916 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 8825 SdHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 00:54:48,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1114 Valid, 8825 Invalid, 1919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1916 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 00:54:48,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6771 states. [2022-01-18 00:54:48,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6771 to 5462. [2022-01-18 00:54:48,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.63175242629555) internal successors, (14372), 5461 states have internal predecessors, (14372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:48,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14372 transitions. [2022-01-18 00:54:48,707 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14372 transitions. Word has length 137 [2022-01-18 00:54:48,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:54:48,707 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14372 transitions. [2022-01-18 00:54:48,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:48,708 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14372 transitions. [2022-01-18 00:54:48,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:54:48,712 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:54:48,712 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:54:48,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-01-18 00:54:48,713 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:54:48,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:54:48,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1966765229, now seen corresponding path program 71 times [2022-01-18 00:54:48,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:54:48,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750956532] [2022-01-18 00:54:48,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:54:48,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:54:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:54:49,264 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 00:54:49,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:54:49,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750956532] [2022-01-18 00:54:49,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750956532] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:54:49,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:54:49,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:54:49,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878394452] [2022-01-18 00:54:49,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:54:49,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:54:49,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:54:49,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:54:49,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:54:49,265 INFO L87 Difference]: Start difference. First operand 5462 states and 14372 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:53,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:54:53,952 INFO L93 Difference]: Finished difference Result 6959 states and 18329 transitions. [2022-01-18 00:54:53,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 00:54:53,953 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:54:53,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:54:53,961 INFO L225 Difference]: With dead ends: 6959 [2022-01-18 00:54:53,961 INFO L226 Difference]: Without dead ends: 6702 [2022-01-18 00:54:53,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1068, Invalid=3092, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 00:54:53,961 INFO L933 BasicCegarLoop]: 510 mSDtfsCounter, 1007 mSDsluCounter, 8021 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 8395 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:54:53,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1007 Valid, 8395 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:54:53,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6702 states. [2022-01-18 00:54:54,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6702 to 5466. [2022-01-18 00:54:54,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.631107044830741) internal successors, (14379), 5465 states have internal predecessors, (14379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:54,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14379 transitions. [2022-01-18 00:54:54,021 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14379 transitions. Word has length 137 [2022-01-18 00:54:54,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:54:54,022 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14379 transitions. [2022-01-18 00:54:54,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:54,022 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14379 transitions. [2022-01-18 00:54:54,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:54:54,027 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:54:54,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:54:54,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-01-18 00:54:54,027 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:54:54,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:54:54,027 INFO L85 PathProgramCache]: Analyzing trace with hash -835380633, now seen corresponding path program 72 times [2022-01-18 00:54:54,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:54:54,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113066818] [2022-01-18 00:54:54,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:54:54,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:54:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:54:54,568 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 00:54:54,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:54:54,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113066818] [2022-01-18 00:54:54,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113066818] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:54:54,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:54:54,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:54:54,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522754604] [2022-01-18 00:54:54,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:54:54,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:54:54,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:54:54,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:54:54,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:54:54,569 INFO L87 Difference]: Start difference. First operand 5466 states and 14379 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:58,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:54:58,949 INFO L93 Difference]: Finished difference Result 6930 states and 18247 transitions. [2022-01-18 00:54:58,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:54:58,950 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:54:58,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:54:58,958 INFO L225 Difference]: With dead ends: 6930 [2022-01-18 00:54:58,958 INFO L226 Difference]: Without dead ends: 6654 [2022-01-18 00:54:58,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1024, Invalid=3266, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:54:58,959 INFO L933 BasicCegarLoop]: 518 mSDtfsCounter, 984 mSDsluCounter, 8870 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 9224 SdHoareTripleChecker+Invalid, 2005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 00:54:58,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 9224 Invalid, 2005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 00:54:58,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6654 states. [2022-01-18 00:54:59,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6654 to 5450. [2022-01-18 00:54:59,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5449 states have (on average 2.6329601761791155) internal successors, (14347), 5449 states have internal predecessors, (14347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:59,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14347 transitions. [2022-01-18 00:54:59,022 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14347 transitions. Word has length 137 [2022-01-18 00:54:59,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:54:59,022 INFO L470 AbstractCegarLoop]: Abstraction has 5450 states and 14347 transitions. [2022-01-18 00:54:59,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:54:59,023 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14347 transitions. [2022-01-18 00:54:59,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:54:59,028 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:54:59,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:54:59,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-01-18 00:54:59,028 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:54:59,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:54:59,028 INFO L85 PathProgramCache]: Analyzing trace with hash -854423229, now seen corresponding path program 73 times [2022-01-18 00:54:59,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:54:59,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155331621] [2022-01-18 00:54:59,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:54:59,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:54:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:54:59,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:54:59,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:54:59,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155331621] [2022-01-18 00:54:59,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155331621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:54:59,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:54:59,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:54:59,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537372293] [2022-01-18 00:54:59,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:54:59,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:54:59,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:54:59,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:54:59,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:54:59,460 INFO L87 Difference]: Start difference. First operand 5450 states and 14347 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:06,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:55:06,984 INFO L93 Difference]: Finished difference Result 7326 states and 19273 transitions. [2022-01-18 00:55:06,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-01-18 00:55:06,988 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:55:06,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:55:06,996 INFO L225 Difference]: With dead ends: 7326 [2022-01-18 00:55:06,996 INFO L226 Difference]: Without dead ends: 6911 [2022-01-18 00:55:06,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1633 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=1908, Invalid=5924, Unknown=0, NotChecked=0, Total=7832 [2022-01-18 00:55:06,997 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 1257 mSDsluCounter, 8689 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 9035 SdHoareTripleChecker+Invalid, 1985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:55:06,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1257 Valid, 9035 Invalid, 1985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1982 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:55:07,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6911 states. [2022-01-18 00:55:07,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6911 to 5462. [2022-01-18 00:55:07,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.631019959714338) internal successors, (14368), 5461 states have internal predecessors, (14368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:07,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14368 transitions. [2022-01-18 00:55:07,059 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14368 transitions. Word has length 137 [2022-01-18 00:55:07,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:55:07,059 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14368 transitions. [2022-01-18 00:55:07,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:07,059 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14368 transitions. [2022-01-18 00:55:07,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:55:07,065 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:55:07,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:55:07,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-01-18 00:55:07,065 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:55:07,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:55:07,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1540201579, now seen corresponding path program 74 times [2022-01-18 00:55:07,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:55:07,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136997441] [2022-01-18 00:55:07,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:55:07,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:55:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:55:07,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:55:07,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:55:07,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136997441] [2022-01-18 00:55:07,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136997441] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:55:07,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:55:07,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:55:07,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660588090] [2022-01-18 00:55:07,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:55:07,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:55:07,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:55:07,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:55:07,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:55:07,604 INFO L87 Difference]: Start difference. First operand 5462 states and 14368 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:14,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:55:14,539 INFO L93 Difference]: Finished difference Result 7175 states and 18877 transitions. [2022-01-18 00:55:14,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 00:55:14,540 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:55:14,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:55:14,549 INFO L225 Difference]: With dead ends: 7175 [2022-01-18 00:55:14,549 INFO L226 Difference]: Without dead ends: 6853 [2022-01-18 00:55:14,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1285 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1588, Invalid=5054, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 00:55:14,550 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 1154 mSDsluCounter, 8605 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 8960 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:55:14,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1154 Valid, 8960 Invalid, 1936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:55:14,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6853 states. [2022-01-18 00:55:14,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6853 to 5466. [2022-01-18 00:55:14,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.6303751143641354) internal successors, (14375), 5465 states have internal predecessors, (14375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:14,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14375 transitions. [2022-01-18 00:55:14,614 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14375 transitions. Word has length 137 [2022-01-18 00:55:14,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:55:14,615 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14375 transitions. [2022-01-18 00:55:14,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:14,615 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14375 transitions. [2022-01-18 00:55:14,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:55:14,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:55:14,620 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:55:14,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-01-18 00:55:14,620 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:55:14,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:55:14,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1835804415, now seen corresponding path program 75 times [2022-01-18 00:55:14,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:55:14,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197347118] [2022-01-18 00:55:14,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:55:14,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:55:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:55:15,200 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 00:55:15,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:55:15,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197347118] [2022-01-18 00:55:15,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197347118] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:55:15,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:55:15,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:55:15,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245535385] [2022-01-18 00:55:15,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:55:15,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:55:15,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:55:15,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:55:15,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:55:15,201 INFO L87 Difference]: Start difference. First operand 5466 states and 14375 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:20,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:55:20,329 INFO L93 Difference]: Finished difference Result 7086 states and 18647 transitions. [2022-01-18 00:55:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 00:55:20,329 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:55:20,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:55:20,338 INFO L225 Difference]: With dead ends: 7086 [2022-01-18 00:55:20,339 INFO L226 Difference]: Without dead ends: 6795 [2022-01-18 00:55:20,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 938 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1277, Invalid=4125, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 00:55:20,340 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 1034 mSDsluCounter, 9417 mSDsCounter, 0 mSdLazyCounter, 2091 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 9748 SdHoareTripleChecker+Invalid, 2094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 00:55:20,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1034 Valid, 9748 Invalid, 2094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2091 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 00:55:20,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6795 states. [2022-01-18 00:55:20,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6795 to 5470. [2022-01-18 00:55:20,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5470 states, 5469 states have (on average 2.6297312122874383) internal successors, (14382), 5469 states have internal predecessors, (14382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:20,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5470 states to 5470 states and 14382 transitions. [2022-01-18 00:55:20,411 INFO L78 Accepts]: Start accepts. Automaton has 5470 states and 14382 transitions. Word has length 137 [2022-01-18 00:55:20,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:55:20,411 INFO L470 AbstractCegarLoop]: Abstraction has 5470 states and 14382 transitions. [2022-01-18 00:55:20,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:20,411 INFO L276 IsEmpty]: Start isEmpty. Operand 5470 states and 14382 transitions. [2022-01-18 00:55:20,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:55:20,416 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:55:20,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:55:20,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-01-18 00:55:20,416 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:55:20,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:55:20,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1417622761, now seen corresponding path program 76 times [2022-01-18 00:55:20,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:55:20,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905926287] [2022-01-18 00:55:20,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:55:20,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:55:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:55:20,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:55:20,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:55:20,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905926287] [2022-01-18 00:55:20,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905926287] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:55:20,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:55:20,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:55:20,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218315150] [2022-01-18 00:55:20,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:55:20,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:55:20,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:55:20,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:55:20,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:55:20,879 INFO L87 Difference]: Start difference. First operand 5470 states and 14382 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:24,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:55:24,334 INFO L93 Difference]: Finished difference Result 6967 states and 18339 transitions. [2022-01-18 00:55:24,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 00:55:24,335 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:55:24,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:55:24,345 INFO L225 Difference]: With dead ends: 6967 [2022-01-18 00:55:24,345 INFO L226 Difference]: Without dead ends: 6710 [2022-01-18 00:55:24,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=994, Invalid=2912, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 00:55:24,346 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 1042 mSDsluCounter, 8960 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 9307 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:55:24,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1042 Valid, 9307 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:55:24,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6710 states. [2022-01-18 00:55:24,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6710 to 5474. [2022-01-18 00:55:24,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 5473 states have (on average 2.6290882514160425) internal successors, (14389), 5473 states have internal predecessors, (14389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:24,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 14389 transitions. [2022-01-18 00:55:24,429 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 14389 transitions. Word has length 137 [2022-01-18 00:55:24,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:55:24,430 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 14389 transitions. [2022-01-18 00:55:24,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:24,430 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 14389 transitions. [2022-01-18 00:55:24,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:55:24,437 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:55:24,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:55:24,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-01-18 00:55:24,437 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:55:24,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:55:24,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1384523101, now seen corresponding path program 77 times [2022-01-18 00:55:24,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:55:24,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208226762] [2022-01-18 00:55:24,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:55:24,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:55:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:55:25,005 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 00:55:25,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:55:25,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208226762] [2022-01-18 00:55:25,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208226762] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:55:25,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:55:25,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:55:25,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258561616] [2022-01-18 00:55:25,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:55:25,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:55:25,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:55:25,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:55:25,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:55:25,006 INFO L87 Difference]: Start difference. First operand 5474 states and 14389 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:28,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:55:28,787 INFO L93 Difference]: Finished difference Result 6938 states and 18257 transitions. [2022-01-18 00:55:28,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:55:28,788 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:55:28,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:55:28,795 INFO L225 Difference]: With dead ends: 6938 [2022-01-18 00:55:28,795 INFO L226 Difference]: Without dead ends: 6642 [2022-01-18 00:55:28,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1016, Invalid=3274, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:55:28,795 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 1047 mSDsluCounter, 7828 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 8205 SdHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:55:28,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1047 Valid, 8205 Invalid, 1804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:55:28,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6642 states. [2022-01-18 00:55:28,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6642 to 5438. [2022-01-18 00:55:28,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5437 states have (on average 2.632701857642082) internal successors, (14314), 5437 states have internal predecessors, (14314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:28,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 14314 transitions. [2022-01-18 00:55:28,848 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 14314 transitions. Word has length 137 [2022-01-18 00:55:28,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:55:28,848 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 14314 transitions. [2022-01-18 00:55:28,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:28,848 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 14314 transitions. [2022-01-18 00:55:28,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:55:28,852 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:55:28,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:55:28,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-01-18 00:55:28,853 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:55:28,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:55:28,853 INFO L85 PathProgramCache]: Analyzing trace with hash 2088442029, now seen corresponding path program 78 times [2022-01-18 00:55:28,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:55:28,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145620856] [2022-01-18 00:55:28,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:55:28,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:55:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:55:29,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:55:29,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:55:29,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145620856] [2022-01-18 00:55:29,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145620856] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:55:29,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:55:29,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:55:29,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857042045] [2022-01-18 00:55:29,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:55:29,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:55:29,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:55:29,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:55:29,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:55:29,379 INFO L87 Difference]: Start difference. First operand 5438 states and 14314 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:36,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:55:36,406 INFO L93 Difference]: Finished difference Result 7400 states and 19373 transitions. [2022-01-18 00:55:36,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 00:55:36,406 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:55:36,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:55:36,415 INFO L225 Difference]: With dead ends: 7400 [2022-01-18 00:55:36,415 INFO L226 Difference]: Without dead ends: 6954 [2022-01-18 00:55:36,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1902 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=2191, Invalid=6551, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 00:55:36,416 INFO L933 BasicCegarLoop]: 547 mSDtfsCounter, 1508 mSDsluCounter, 8629 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 8978 SdHoareTripleChecker+Invalid, 1893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:55:36,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1508 Valid, 8978 Invalid, 1893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:55:36,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6954 states. [2022-01-18 00:55:36,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6954 to 5442. [2022-01-18 00:55:36,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5442 states, 5441 states have (on average 2.632052931446425) internal successors, (14321), 5441 states have internal predecessors, (14321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:36,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 14321 transitions. [2022-01-18 00:55:36,472 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 14321 transitions. Word has length 137 [2022-01-18 00:55:36,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:55:36,472 INFO L470 AbstractCegarLoop]: Abstraction has 5442 states and 14321 transitions. [2022-01-18 00:55:36,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:36,473 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 14321 transitions. [2022-01-18 00:55:36,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:55:36,477 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:55:36,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:55:36,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-01-18 00:55:36,477 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:55:36,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:55:36,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1617664853, now seen corresponding path program 79 times [2022-01-18 00:55:36,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:55:36,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337429414] [2022-01-18 00:55:36,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:55:36,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:55:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:55:36,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:55:36,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:55:36,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337429414] [2022-01-18 00:55:36,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337429414] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:55:36,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:55:36,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:55:36,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981801368] [2022-01-18 00:55:36,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:55:36,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:55:36,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:55:36,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:55:37,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:55:37,000 INFO L87 Difference]: Start difference. First operand 5442 states and 14321 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:43,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:55:43,699 INFO L93 Difference]: Finished difference Result 7186 states and 18884 transitions. [2022-01-18 00:55:43,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 00:55:43,700 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:55:43,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:55:43,708 INFO L225 Difference]: With dead ends: 7186 [2022-01-18 00:55:43,708 INFO L226 Difference]: Without dead ends: 6771 [2022-01-18 00:55:43,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1624 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=1927, Invalid=6083, Unknown=0, NotChecked=0, Total=8010 [2022-01-18 00:55:43,709 INFO L933 BasicCegarLoop]: 541 mSDtfsCounter, 1228 mSDsluCounter, 9611 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 9930 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 00:55:43,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1228 Valid, 9930 Invalid, 2100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 00:55:43,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6771 states. [2022-01-18 00:55:43,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6771 to 5454. [2022-01-18 00:55:43,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 5453 states have (on average 2.6301118650284248) internal successors, (14342), 5453 states have internal predecessors, (14342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:43,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 14342 transitions. [2022-01-18 00:55:43,767 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 14342 transitions. Word has length 137 [2022-01-18 00:55:43,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:55:43,767 INFO L470 AbstractCegarLoop]: Abstraction has 5454 states and 14342 transitions. [2022-01-18 00:55:43,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:43,767 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 14342 transitions. [2022-01-18 00:55:43,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:55:43,771 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:55:43,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:55:43,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-01-18 00:55:43,772 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:55:43,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:55:43,772 INFO L85 PathProgramCache]: Analyzing trace with hash 213661041, now seen corresponding path program 80 times [2022-01-18 00:55:43,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:55:43,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700921311] [2022-01-18 00:55:43,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:55:43,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:55:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:55:44,282 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 00:55:44,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:55:44,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700921311] [2022-01-18 00:55:44,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700921311] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:55:44,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:55:44,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:55:44,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432700300] [2022-01-18 00:55:44,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:55:44,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:55:44,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:55:44,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:55:44,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:55:44,284 INFO L87 Difference]: Start difference. First operand 5454 states and 14342 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:51,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:55:51,000 INFO L93 Difference]: Finished difference Result 7039 states and 18499 transitions. [2022-01-18 00:55:51,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 00:55:51,000 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:55:51,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:55:51,008 INFO L225 Difference]: With dead ends: 7039 [2022-01-18 00:55:51,008 INFO L226 Difference]: Without dead ends: 6717 [2022-01-18 00:55:51,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1293 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1573, Invalid=5069, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 00:55:51,008 INFO L933 BasicCegarLoop]: 531 mSDtfsCounter, 1195 mSDsluCounter, 8482 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 8838 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:55:51,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1195 Valid, 8838 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:55:51,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6717 states. [2022-01-18 00:55:51,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6717 to 5458. [2022-01-18 00:55:51,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.6294667399670146) internal successors, (14349), 5457 states have internal predecessors, (14349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:51,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14349 transitions. [2022-01-18 00:55:51,059 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14349 transitions. Word has length 137 [2022-01-18 00:55:51,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:55:51,060 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14349 transitions. [2022-01-18 00:55:51,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:51,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14349 transitions. [2022-01-18 00:55:51,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:55:51,064 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:55:51,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:55:51,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-01-18 00:55:51,065 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:55:51,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:55:51,065 INFO L85 PathProgramCache]: Analyzing trace with hash 509263877, now seen corresponding path program 81 times [2022-01-18 00:55:51,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:55:51,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961988583] [2022-01-18 00:55:51,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:55:51,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:55:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:55:51,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:55:51,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:55:51,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961988583] [2022-01-18 00:55:51,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961988583] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:55:51,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:55:51,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:55:51,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017650963] [2022-01-18 00:55:51,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:55:51,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:55:51,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:55:51,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:55:51,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:55:51,590 INFO L87 Difference]: Start difference. First operand 5458 states and 14349 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:55,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:55:55,785 INFO L93 Difference]: Finished difference Result 6954 states and 18280 transitions. [2022-01-18 00:55:55,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 00:55:55,785 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:55:55,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:55:55,794 INFO L225 Difference]: With dead ends: 6954 [2022-01-18 00:55:55,794 INFO L226 Difference]: Without dead ends: 6663 [2022-01-18 00:55:55,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1267, Invalid=4135, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 00:55:55,795 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 1062 mSDsluCounter, 8099 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 8466 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:55:55,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1062 Valid, 8466 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:55:55,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6663 states. [2022-01-18 00:55:55,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6663 to 5462. [2022-01-18 00:55:55,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.6288225599707014) internal successors, (14356), 5461 states have internal predecessors, (14356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:55,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14356 transitions. [2022-01-18 00:55:55,858 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14356 transitions. Word has length 137 [2022-01-18 00:55:55,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:55:55,858 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14356 transitions. [2022-01-18 00:55:55,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:55,858 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14356 transitions. [2022-01-18 00:55:55,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:55:55,863 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:55:55,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:55:55,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-01-18 00:55:55,863 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:55:55,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:55:55,863 INFO L85 PathProgramCache]: Analyzing trace with hash 91082223, now seen corresponding path program 82 times [2022-01-18 00:55:55,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:55:55,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820769387] [2022-01-18 00:55:55,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:55:55,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:55:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:55:56,249 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 00:55:56,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:55:56,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820769387] [2022-01-18 00:55:56,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820769387] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:55:56,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:55:56,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:55:56,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283811811] [2022-01-18 00:55:56,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:55:56,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:55:56,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:55:56,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:55:56,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:55:56,251 INFO L87 Difference]: Start difference. First operand 5462 states and 14356 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:59,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:55:59,171 INFO L93 Difference]: Finished difference Result 6823 states and 17947 transitions. [2022-01-18 00:55:59,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 00:55:59,171 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:55:59,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:55:59,180 INFO L225 Difference]: With dead ends: 6823 [2022-01-18 00:55:59,180 INFO L226 Difference]: Without dead ends: 6566 [2022-01-18 00:55:59,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=960, Invalid=2822, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 00:55:59,180 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 1057 mSDsluCounter, 8456 mSDsCounter, 0 mSdLazyCounter, 1830 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 8817 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:55:59,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1057 Valid, 8817 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1830 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:55:59,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6566 states. [2022-01-18 00:55:59,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6566 to 5466. [2022-01-18 00:55:59,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.628179322964318) internal successors, (14363), 5465 states have internal predecessors, (14363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:59,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14363 transitions. [2022-01-18 00:55:59,235 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14363 transitions. Word has length 137 [2022-01-18 00:55:59,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:55:59,235 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14363 transitions. [2022-01-18 00:55:59,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:55:59,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14363 transitions. [2022-01-18 00:55:59,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:55:59,240 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:55:59,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:55:59,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-01-18 00:55:59,240 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:55:59,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:55:59,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1583903657, now seen corresponding path program 83 times [2022-01-18 00:55:59,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:55:59,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540254503] [2022-01-18 00:55:59,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:55:59,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:55:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:55:59,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:55:59,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:55:59,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540254503] [2022-01-18 00:55:59,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540254503] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:55:59,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:55:59,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:55:59,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794094133] [2022-01-18 00:55:59,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:55:59,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:55:59,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:55:59,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:55:59,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:55:59,773 INFO L87 Difference]: Start difference. First operand 5466 states and 14363 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:02,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:56:02,956 INFO L93 Difference]: Finished difference Result 6762 states and 17781 transitions. [2022-01-18 00:56:02,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:56:02,957 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:56:02,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:56:02,965 INFO L225 Difference]: With dead ends: 6762 [2022-01-18 00:56:02,965 INFO L226 Difference]: Without dead ends: 6418 [2022-01-18 00:56:02,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1008, Invalid=3282, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:56:02,966 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 1020 mSDsluCounter, 8752 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 9100 SdHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:56:02,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1020 Valid, 9100 Invalid, 1900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:56:02,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6418 states. [2022-01-18 00:56:03,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6418 to 5382. [2022-01-18 00:56:03,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5382 states, 5381 states have (on average 2.632224493588552) internal successors, (14164), 5381 states have internal predecessors, (14164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:03,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 14164 transitions. [2022-01-18 00:56:03,026 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 14164 transitions. Word has length 137 [2022-01-18 00:56:03,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:56:03,026 INFO L470 AbstractCegarLoop]: Abstraction has 5382 states and 14164 transitions. [2022-01-18 00:56:03,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:03,026 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 14164 transitions. [2022-01-18 00:56:03,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:56:03,031 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:56:03,031 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:56:03,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-01-18 00:56:03,032 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:56:03,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:56:03,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1678521553, now seen corresponding path program 84 times [2022-01-18 00:56:03,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:56:03,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065667926] [2022-01-18 00:56:03,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:56:03,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:56:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:56:03,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:56:03,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:56:03,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065667926] [2022-01-18 00:56:03,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065667926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:56:03,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:56:03,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:56:03,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872012052] [2022-01-18 00:56:03,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:56:03,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:56:03,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:56:03,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:56:03,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:56:03,572 INFO L87 Difference]: Start difference. First operand 5382 states and 14164 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:08,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:56:08,896 INFO L93 Difference]: Finished difference Result 6479 states and 17049 transitions. [2022-01-18 00:56:08,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 00:56:08,896 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:56:08,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:56:08,904 INFO L225 Difference]: With dead ends: 6479 [2022-01-18 00:56:08,904 INFO L226 Difference]: Without dead ends: 6166 [2022-01-18 00:56:08,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 945 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1632, Invalid=4374, Unknown=0, NotChecked=0, Total=6006 [2022-01-18 00:56:08,905 INFO L933 BasicCegarLoop]: 503 mSDtfsCounter, 1049 mSDsluCounter, 8806 mSDsCounter, 0 mSdLazyCounter, 1895 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 9131 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:56:08,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1049 Valid, 9131 Invalid, 1898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1895 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:56:08,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6166 states. [2022-01-18 00:56:08,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6166 to 5410. [2022-01-18 00:56:08,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.63209465705306) internal successors, (14237), 5409 states have internal predecessors, (14237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:08,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14237 transitions. [2022-01-18 00:56:08,959 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14237 transitions. Word has length 137 [2022-01-18 00:56:08,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:56:08,959 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14237 transitions. [2022-01-18 00:56:08,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:08,959 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14237 transitions. [2022-01-18 00:56:08,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:56:08,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:56:08,964 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:56:08,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-01-18 00:56:08,964 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:56:08,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:56:08,964 INFO L85 PathProgramCache]: Analyzing trace with hash 510229385, now seen corresponding path program 85 times [2022-01-18 00:56:08,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:56:08,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333802968] [2022-01-18 00:56:08,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:56:08,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:56:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:56:09,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:56:09,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:56:09,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333802968] [2022-01-18 00:56:09,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333802968] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:56:09,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:56:09,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:56:09,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380412991] [2022-01-18 00:56:09,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:56:09,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:56:09,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:56:09,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:56:09,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:56:09,512 INFO L87 Difference]: Start difference. First operand 5410 states and 14237 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:14,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:56:14,315 INFO L93 Difference]: Finished difference Result 6551 states and 17235 transitions. [2022-01-18 00:56:14,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 00:56:14,316 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:56:14,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:56:14,323 INFO L225 Difference]: With dead ends: 6551 [2022-01-18 00:56:14,323 INFO L226 Difference]: Without dead ends: 6266 [2022-01-18 00:56:14,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 806 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1419, Invalid=3983, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 00:56:14,324 INFO L933 BasicCegarLoop]: 503 mSDtfsCounter, 997 mSDsluCounter, 8593 mSDsCounter, 0 mSdLazyCounter, 1880 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 8935 SdHoareTripleChecker+Invalid, 1883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:56:14,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [997 Valid, 8935 Invalid, 1883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1880 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:56:14,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6266 states. [2022-01-18 00:56:14,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6266 to 5414. [2022-01-18 00:56:14,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.631442822833918) internal successors, (14244), 5413 states have internal predecessors, (14244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:14,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14244 transitions. [2022-01-18 00:56:14,377 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14244 transitions. Word has length 137 [2022-01-18 00:56:14,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:56:14,395 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14244 transitions. [2022-01-18 00:56:14,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:14,395 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14244 transitions. [2022-01-18 00:56:14,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:56:14,400 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:56:14,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:56:14,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-01-18 00:56:14,401 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:56:14,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:56:14,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1754191479, now seen corresponding path program 86 times [2022-01-18 00:56:14,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:56:14,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105971009] [2022-01-18 00:56:14,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:56:14,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:56:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:56:14,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:56:14,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:56:14,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105971009] [2022-01-18 00:56:14,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105971009] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:56:14,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:56:14,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:56:14,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782847933] [2022-01-18 00:56:14,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:56:14,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:56:14,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:56:14,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:56:14,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:56:14,792 INFO L87 Difference]: Start difference. First operand 5414 states and 14244 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:18,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:56:18,772 INFO L93 Difference]: Finished difference Result 6471 states and 17023 transitions. [2022-01-18 00:56:18,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:56:18,772 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:56:18,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:56:18,780 INFO L225 Difference]: With dead ends: 6471 [2022-01-18 00:56:18,780 INFO L226 Difference]: Without dead ends: 6214 [2022-01-18 00:56:18,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1089, Invalid=3201, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:56:18,781 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 899 mSDsluCounter, 8833 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 9174 SdHoareTripleChecker+Invalid, 1956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:56:18,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [899 Valid, 9174 Invalid, 1956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1953 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:56:18,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6214 states. [2022-01-18 00:56:18,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6214 to 5418. [2022-01-18 00:56:18,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.6307919512645377) internal successors, (14251), 5417 states have internal predecessors, (14251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:18,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14251 transitions. [2022-01-18 00:56:18,834 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14251 transitions. Word has length 137 [2022-01-18 00:56:18,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:56:18,834 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14251 transitions. [2022-01-18 00:56:18,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:18,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14251 transitions. [2022-01-18 00:56:18,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:56:18,838 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:56:18,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:56:18,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-01-18 00:56:18,839 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:56:18,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:56:18,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1047954383, now seen corresponding path program 87 times [2022-01-18 00:56:18,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:56:18,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714322235] [2022-01-18 00:56:18,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:56:18,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:56:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:56:19,355 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 00:56:19,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:56:19,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714322235] [2022-01-18 00:56:19,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714322235] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:56:19,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:56:19,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:56:19,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691433354] [2022-01-18 00:56:19,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:56:19,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:56:19,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:56:19,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:56:19,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:56:19,356 INFO L87 Difference]: Start difference. First operand 5418 states and 14251 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:22,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:56:22,539 INFO L93 Difference]: Finished difference Result 6434 states and 16919 transitions. [2022-01-18 00:56:22,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 00:56:22,539 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:56:22,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:56:22,547 INFO L225 Difference]: With dead ends: 6434 [2022-01-18 00:56:22,547 INFO L226 Difference]: Without dead ends: 6162 [2022-01-18 00:56:22,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=969, Invalid=3063, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 00:56:22,547 INFO L933 BasicCegarLoop]: 501 mSDtfsCounter, 977 mSDsluCounter, 8493 mSDsCounter, 0 mSdLazyCounter, 1887 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 8838 SdHoareTripleChecker+Invalid, 1890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:56:22,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 8838 Invalid, 1890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1887 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:56:22,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6162 states. [2022-01-18 00:56:22,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6162 to 5406. [2022-01-18 00:56:22,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 5405 states have (on average 2.632007400555042) internal successors, (14226), 5405 states have internal predecessors, (14226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:22,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 14226 transitions. [2022-01-18 00:56:22,599 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 14226 transitions. Word has length 137 [2022-01-18 00:56:22,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:56:22,599 INFO L470 AbstractCegarLoop]: Abstraction has 5406 states and 14226 transitions. [2022-01-18 00:56:22,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:22,599 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 14226 transitions. [2022-01-18 00:56:22,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:56:22,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:56:22,604 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:56:22,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-01-18 00:56:22,604 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:56:22,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:56:22,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1936839657, now seen corresponding path program 88 times [2022-01-18 00:56:22,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:56:22,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865007772] [2022-01-18 00:56:22,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:56:22,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:56:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:56:22,954 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 00:56:22,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:56:22,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865007772] [2022-01-18 00:56:22,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865007772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:56:22,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:56:22,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:56:22,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659049752] [2022-01-18 00:56:22,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:56:22,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:56:22,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:56:22,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:56:22,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:56:22,955 INFO L87 Difference]: Start difference. First operand 5406 states and 14226 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:27,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:56:27,631 INFO L93 Difference]: Finished difference Result 6563 states and 17268 transitions. [2022-01-18 00:56:27,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 00:56:27,631 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:56:27,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:56:27,639 INFO L225 Difference]: With dead ends: 6563 [2022-01-18 00:56:27,639 INFO L226 Difference]: Without dead ends: 6278 [2022-01-18 00:56:27,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1388, Invalid=3868, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 00:56:27,640 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 1033 mSDsluCounter, 8385 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 8729 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:56:27,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1033 Valid, 8729 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1843 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:56:27,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6278 states. [2022-01-18 00:56:27,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6278 to 5414. [2022-01-18 00:56:27,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.631442822833918) internal successors, (14244), 5413 states have internal predecessors, (14244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:27,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14244 transitions. [2022-01-18 00:56:27,694 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14244 transitions. Word has length 137 [2022-01-18 00:56:27,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:56:27,694 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14244 transitions. [2022-01-18 00:56:27,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:27,694 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14244 transitions. [2022-01-18 00:56:27,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:56:27,699 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:56:27,699 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:56:27,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-01-18 00:56:27,699 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:56:27,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:56:27,699 INFO L85 PathProgramCache]: Analyzing trace with hash -692877563, now seen corresponding path program 89 times [2022-01-18 00:56:27,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:56:27,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843126675] [2022-01-18 00:56:27,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:56:27,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:56:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:56:28,126 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 00:56:28,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:56:28,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843126675] [2022-01-18 00:56:28,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843126675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:56:28,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:56:28,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:56:28,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070540415] [2022-01-18 00:56:28,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:56:28,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:56:28,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:56:28,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:56:28,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:56:28,127 INFO L87 Difference]: Start difference. First operand 5414 states and 14244 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:32,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:56:32,281 INFO L93 Difference]: Finished difference Result 6511 states and 17133 transitions. [2022-01-18 00:56:32,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:56:32,281 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:56:32,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:56:32,288 INFO L225 Difference]: With dead ends: 6511 [2022-01-18 00:56:32,288 INFO L226 Difference]: Without dead ends: 6254 [2022-01-18 00:56:32,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1094, Invalid=3196, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:56:32,289 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 952 mSDsluCounter, 8217 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 8576 SdHoareTripleChecker+Invalid, 1836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:56:32,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [952 Valid, 8576 Invalid, 1836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:56:32,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6254 states. [2022-01-18 00:56:32,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6254 to 5418. [2022-01-18 00:56:32,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.6307919512645377) internal successors, (14251), 5417 states have internal predecessors, (14251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:32,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14251 transitions. [2022-01-18 00:56:32,339 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14251 transitions. Word has length 137 [2022-01-18 00:56:32,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:56:32,339 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14251 transitions. [2022-01-18 00:56:32,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:32,339 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14251 transitions. [2022-01-18 00:56:32,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:56:32,344 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:56:32,344 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:56:32,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-01-18 00:56:32,344 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:56:32,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:56:32,346 INFO L85 PathProgramCache]: Analyzing trace with hash 799943871, now seen corresponding path program 90 times [2022-01-18 00:56:32,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:56:32,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923730590] [2022-01-18 00:56:32,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:56:32,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:56:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:56:32,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:56:32,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:56:32,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923730590] [2022-01-18 00:56:32,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923730590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:56:32,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:56:32,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:56:32,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523945201] [2022-01-18 00:56:32,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:56:32,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:56:32,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:56:32,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:56:32,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:56:32,782 INFO L87 Difference]: Start difference. First operand 5418 states and 14251 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:36,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:56:36,003 INFO L93 Difference]: Finished difference Result 6482 states and 17051 transitions. [2022-01-18 00:56:36,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 00:56:36,003 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:56:36,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:56:36,011 INFO L225 Difference]: With dead ends: 6482 [2022-01-18 00:56:36,011 INFO L226 Difference]: Without dead ends: 6214 [2022-01-18 00:56:36,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1006, Invalid=3154, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 00:56:36,012 INFO L933 BasicCegarLoop]: 504 mSDtfsCounter, 948 mSDsluCounter, 8624 mSDsCounter, 0 mSdLazyCounter, 1931 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 8969 SdHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:56:36,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [948 Valid, 8969 Invalid, 1934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1931 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:56:36,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6214 states. [2022-01-18 00:56:36,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6214 to 5410. [2022-01-18 00:56:36,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.6313551488260307) internal successors, (14233), 5409 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:36,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14233 transitions. [2022-01-18 00:56:36,067 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14233 transitions. Word has length 137 [2022-01-18 00:56:36,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:56:36,067 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14233 transitions. [2022-01-18 00:56:36,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:36,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14233 transitions. [2022-01-18 00:56:36,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:56:36,072 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:56:36,072 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] [2022-01-18 00:56:36,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-01-18 00:56:36,073 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:56:36,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:56:36,073 INFO L85 PathProgramCache]: Analyzing trace with hash -192374699, now seen corresponding path program 91 times [2022-01-18 00:56:36,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:56:36,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826631847] [2022-01-18 00:56:36,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:56:36,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:56:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:56:36,489 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 00:56:36,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:56:36,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826631847] [2022-01-18 00:56:36,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826631847] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:56:36,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:56:36,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:56:36,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620024165] [2022-01-18 00:56:36,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:56:36,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:56:36,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:56:36,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:56:36,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:56:36,491 INFO L87 Difference]: Start difference. First operand 5410 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:40,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:56:40,192 INFO L93 Difference]: Finished difference Result 6566 states and 17261 transitions. [2022-01-18 00:56:40,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 00:56:40,193 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:56:40,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:56:40,199 INFO L225 Difference]: With dead ends: 6566 [2022-01-18 00:56:40,199 INFO L226 Difference]: Without dead ends: 6275 [2022-01-18 00:56:40,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 849 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1252, Invalid=3860, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 00:56:40,200 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 1034 mSDsluCounter, 8281 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 8628 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:56:40,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1034 Valid, 8628 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1843 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:56:40,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6275 states. [2022-01-18 00:56:40,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6275 to 5414. [2022-01-18 00:56:40,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.6307038610751894) internal successors, (14240), 5413 states have internal predecessors, (14240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:40,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14240 transitions. [2022-01-18 00:56:40,250 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14240 transitions. Word has length 137 [2022-01-18 00:56:40,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:56:40,250 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14240 transitions. [2022-01-18 00:56:40,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:40,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14240 transitions. [2022-01-18 00:56:40,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:56:40,255 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:56:40,255 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] [2022-01-18 00:56:40,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-01-18 00:56:40,255 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:56:40,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:56:40,255 INFO L85 PathProgramCache]: Analyzing trace with hash -610556353, now seen corresponding path program 92 times [2022-01-18 00:56:40,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:56:40,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969026501] [2022-01-18 00:56:40,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:56:40,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:56:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:56:40,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:56:40,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:56:40,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969026501] [2022-01-18 00:56:40,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969026501] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:56:40,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:56:40,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:56:40,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415689205] [2022-01-18 00:56:40,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:56:40,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:56:40,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:56:40,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:56:40,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:56:40,701 INFO L87 Difference]: Start difference. First operand 5414 states and 14240 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:44,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:56:44,584 INFO L93 Difference]: Finished difference Result 6475 states and 17030 transitions. [2022-01-18 00:56:44,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 00:56:44,584 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:56:44,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:56:44,592 INFO L225 Difference]: With dead ends: 6475 [2022-01-18 00:56:44,592 INFO L226 Difference]: Without dead ends: 6218 [2022-01-18 00:56:44,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1055, Invalid=3105, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 00:56:44,593 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 941 mSDsluCounter, 8774 mSDsCounter, 0 mSdLazyCounter, 1954 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 9117 SdHoareTripleChecker+Invalid, 1957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:56:44,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [941 Valid, 9117 Invalid, 1957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1954 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:56:44,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6218 states. [2022-01-18 00:56:44,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6218 to 5418. [2022-01-18 00:56:44,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.630053535167067) internal successors, (14247), 5417 states have internal predecessors, (14247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:44,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14247 transitions. [2022-01-18 00:56:44,645 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14247 transitions. Word has length 137 [2022-01-18 00:56:44,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:56:44,645 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14247 transitions. [2022-01-18 00:56:44,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:44,645 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14247 transitions. [2022-01-18 00:56:44,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:56:44,650 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:56:44,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:56:44,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-01-18 00:56:44,650 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:56:44,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:56:44,650 INFO L85 PathProgramCache]: Analyzing trace with hash 882265081, now seen corresponding path program 93 times [2022-01-18 00:56:44,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:56:44,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570281154] [2022-01-18 00:56:44,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:56:44,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:56:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:56:45,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:56:45,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:56:45,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570281154] [2022-01-18 00:56:45,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570281154] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:56:45,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:56:45,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:56:45,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204944223] [2022-01-18 00:56:45,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:56:45,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:56:45,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:56:45,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:56:45,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:56:45,024 INFO L87 Difference]: Start difference. First operand 5418 states and 14247 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:48,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:56:48,951 INFO L93 Difference]: Finished difference Result 6434 states and 16915 transitions. [2022-01-18 00:56:48,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:56:48,951 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:56:48,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:56:48,958 INFO L225 Difference]: With dead ends: 6434 [2022-01-18 00:56:48,958 INFO L226 Difference]: Without dead ends: 6158 [2022-01-18 00:56:48,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1047, Invalid=3243, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:56:48,958 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 1017 mSDsluCounter, 7761 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 8124 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:56:48,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1017 Valid, 8124 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:56:48,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6158 states. [2022-01-18 00:56:48,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6158 to 5402. [2022-01-18 00:56:49,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5401 states have (on average 2.631920014812072) internal successors, (14215), 5401 states have internal predecessors, (14215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:49,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 14215 transitions. [2022-01-18 00:56:49,007 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 14215 transitions. Word has length 137 [2022-01-18 00:56:49,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:56:49,007 INFO L470 AbstractCegarLoop]: Abstraction has 5402 states and 14215 transitions. [2022-01-18 00:56:49,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:49,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 14215 transitions. [2022-01-18 00:56:49,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:56:49,011 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:56:49,011 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:56:49,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-01-18 00:56:49,012 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:56:49,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:56:49,012 INFO L85 PathProgramCache]: Analyzing trace with hash 274343417, now seen corresponding path program 94 times [2022-01-18 00:56:49,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:56:49,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083517145] [2022-01-18 00:56:49,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:56:49,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:56:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:56:49,335 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 00:56:49,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:56:49,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083517145] [2022-01-18 00:56:49,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083517145] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:56:49,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:56:49,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:56:49,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601679711] [2022-01-18 00:56:49,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:56:49,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:56:49,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:56:49,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:56:49,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:56:49,336 INFO L87 Difference]: Start difference. First operand 5402 states and 14215 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:55,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:56:55,404 INFO L93 Difference]: Finished difference Result 6683 states and 17568 transitions. [2022-01-18 00:56:55,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 00:56:55,405 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:56:55,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:56:55,412 INFO L225 Difference]: With dead ends: 6683 [2022-01-18 00:56:55,413 INFO L226 Difference]: Without dead ends: 6361 [2022-01-18 00:56:55,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1178 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1563, Invalid=4757, Unknown=0, NotChecked=0, Total=6320 [2022-01-18 00:56:55,418 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 1171 mSDsluCounter, 7964 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 8316 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:56:55,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1171 Valid, 8316 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:56:55,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6361 states. [2022-01-18 00:56:55,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6361 to 5410. [2022-01-18 00:56:55,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.6313551488260307) internal successors, (14233), 5409 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:55,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14233 transitions. [2022-01-18 00:56:55,472 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14233 transitions. Word has length 137 [2022-01-18 00:56:55,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:56:55,472 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14233 transitions. [2022-01-18 00:56:55,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:55,472 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14233 transitions. [2022-01-18 00:56:55,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:56:55,477 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:56:55,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:56:55,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-01-18 00:56:55,477 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:56:55,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:56:55,477 INFO L85 PathProgramCache]: Analyzing trace with hash 569946253, now seen corresponding path program 95 times [2022-01-18 00:56:55,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:56:55,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368660300] [2022-01-18 00:56:55,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:56:55,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:56:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:56:55,870 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 00:56:55,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:56:55,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368660300] [2022-01-18 00:56:55,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368660300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:56:55,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:56:55,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:56:55,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080447778] [2022-01-18 00:56:55,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:56:55,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:56:55,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:56:55,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:56:55,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:56:55,871 INFO L87 Difference]: Start difference. First operand 5410 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:59,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:56:59,766 INFO L93 Difference]: Finished difference Result 6646 states and 17481 transitions. [2022-01-18 00:56:59,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 00:56:59,766 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:56:59,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:56:59,772 INFO L225 Difference]: With dead ends: 6646 [2022-01-18 00:56:59,772 INFO L226 Difference]: Without dead ends: 6355 [2022-01-18 00:56:59,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 867 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1315, Invalid=4087, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 00:56:59,773 INFO L933 BasicCegarLoop]: 511 mSDtfsCounter, 1110 mSDsluCounter, 8618 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 8956 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:56:59,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1110 Valid, 8956 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1922 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:56:59,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6355 states. [2022-01-18 00:56:59,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6355 to 5414. [2022-01-18 00:56:59,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.6307038610751894) internal successors, (14240), 5413 states have internal predecessors, (14240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:59,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14240 transitions. [2022-01-18 00:56:59,821 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14240 transitions. Word has length 137 [2022-01-18 00:56:59,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:56:59,821 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14240 transitions. [2022-01-18 00:56:59,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:56:59,822 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14240 transitions. [2022-01-18 00:56:59,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:56:59,826 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:56:59,826 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:56:59,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-01-18 00:56:59,826 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:56:59,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:56:59,827 INFO L85 PathProgramCache]: Analyzing trace with hash 151764599, now seen corresponding path program 96 times [2022-01-18 00:56:59,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:56:59,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120680226] [2022-01-18 00:56:59,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:56:59,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:56:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:57:00,288 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 00:57:00,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:57:00,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120680226] [2022-01-18 00:57:00,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120680226] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:57:00,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:57:00,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:57:00,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550965171] [2022-01-18 00:57:00,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:57:00,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:57:00,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:57:00,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:57:00,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:57:00,290 INFO L87 Difference]: Start difference. First operand 5414 states and 14240 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:04,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:57:04,203 INFO L93 Difference]: Finished difference Result 6543 states and 17217 transitions. [2022-01-18 00:57:04,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 00:57:04,203 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:57:04,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:57:04,211 INFO L225 Difference]: With dead ends: 6543 [2022-01-18 00:57:04,211 INFO L226 Difference]: Without dead ends: 6286 [2022-01-18 00:57:04,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1020, Invalid=3012, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 00:57:04,212 INFO L933 BasicCegarLoop]: 500 mSDtfsCounter, 984 mSDsluCounter, 8539 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 8887 SdHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:57:04,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 8887 Invalid, 1900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:57:04,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6286 states. [2022-01-18 00:57:04,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6286 to 5418. [2022-01-18 00:57:04,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.630053535167067) internal successors, (14247), 5417 states have internal predecessors, (14247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:04,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14247 transitions. [2022-01-18 00:57:04,265 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14247 transitions. Word has length 137 [2022-01-18 00:57:04,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:57:04,265 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14247 transitions. [2022-01-18 00:57:04,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:04,265 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14247 transitions. [2022-01-18 00:57:04,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:57:04,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:57:04,270 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:57:04,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-01-18 00:57:04,270 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:57:04,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:57:04,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1644586033, now seen corresponding path program 97 times [2022-01-18 00:57:04,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:57:04,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553452705] [2022-01-18 00:57:04,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:57:04,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:57:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:57:04,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:57:04,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:57:04,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553452705] [2022-01-18 00:57:04,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553452705] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:57:04,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:57:04,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:57:04,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943912716] [2022-01-18 00:57:04,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:57:04,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:57:04,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:57:04,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:57:04,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:57:04,793 INFO L87 Difference]: Start difference. First operand 5418 states and 14247 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:09,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:57:09,505 INFO L93 Difference]: Finished difference Result 6514 states and 17135 transitions. [2022-01-18 00:57:09,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:57:09,505 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:57:09,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:57:09,514 INFO L225 Difference]: With dead ends: 6514 [2022-01-18 00:57:09,515 INFO L226 Difference]: Without dead ends: 6242 [2022-01-18 00:57:09,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1037, Invalid=3253, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:57:09,515 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 1051 mSDsluCounter, 7498 mSDsCounter, 0 mSdLazyCounter, 1711 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 7875 SdHoareTripleChecker+Invalid, 1714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:57:09,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1051 Valid, 7875 Invalid, 1714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1711 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:57:09,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6242 states. [2022-01-18 00:57:09,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6242 to 5406. [2022-01-18 00:57:09,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 5405 states have (on average 2.631267345050879) internal successors, (14222), 5405 states have internal predecessors, (14222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:09,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 14222 transitions. [2022-01-18 00:57:09,589 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 14222 transitions. Word has length 137 [2022-01-18 00:57:09,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:57:09,589 INFO L470 AbstractCegarLoop]: Abstraction has 5406 states and 14222 transitions. [2022-01-18 00:57:09,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:09,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 14222 transitions. [2022-01-18 00:57:09,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:57:09,595 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:57:09,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:57:09,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-01-18 00:57:09,595 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:57:09,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:57:09,595 INFO L85 PathProgramCache]: Analyzing trace with hash -135568175, now seen corresponding path program 98 times [2022-01-18 00:57:09,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:57:09,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440966324] [2022-01-18 00:57:09,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:57:09,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:57:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:57:10,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:57:10,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:57:10,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440966324] [2022-01-18 00:57:10,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440966324] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:57:10,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:57:10,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:57:10,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049616873] [2022-01-18 00:57:10,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:57:10,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:57:10,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:57:10,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:57:10,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:57:10,101 INFO L87 Difference]: Start difference. First operand 5406 states and 14222 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:14,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:57:14,433 INFO L93 Difference]: Finished difference Result 6563 states and 17264 transitions. [2022-01-18 00:57:14,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 00:57:14,433 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:57:14,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:57:14,441 INFO L225 Difference]: With dead ends: 6563 [2022-01-18 00:57:14,442 INFO L226 Difference]: Without dead ends: 6278 [2022-01-18 00:57:14,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1354, Invalid=3758, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 00:57:14,442 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 1001 mSDsluCounter, 8708 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 9043 SdHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:57:14,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1001 Valid, 9043 Invalid, 1900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:57:14,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6278 states. [2022-01-18 00:57:14,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6278 to 5414. [2022-01-18 00:57:14,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.6307038610751894) internal successors, (14240), 5413 states have internal predecessors, (14240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:14,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14240 transitions. [2022-01-18 00:57:14,506 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14240 transitions. Word has length 137 [2022-01-18 00:57:14,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:57:14,506 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14240 transitions. [2022-01-18 00:57:14,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:14,506 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14240 transitions. [2022-01-18 00:57:14,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:57:14,511 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:57:14,511 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:57:14,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-01-18 00:57:14,512 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:57:14,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:57:14,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1108393919, now seen corresponding path program 99 times [2022-01-18 00:57:14,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:57:14,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910323450] [2022-01-18 00:57:14,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:57:14,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:57:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:57:14,918 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 00:57:14,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:57:14,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910323450] [2022-01-18 00:57:14,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910323450] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:57:14,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:57:14,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:57:14,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383539079] [2022-01-18 00:57:14,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:57:14,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:57:14,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:57:14,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:57:14,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:57:14,920 INFO L87 Difference]: Start difference. First operand 5414 states and 14240 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:18,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:57:18,994 INFO L93 Difference]: Finished difference Result 6523 states and 17162 transitions. [2022-01-18 00:57:18,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:57:18,995 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:57:18,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:57:19,002 INFO L225 Difference]: With dead ends: 6523 [2022-01-18 00:57:19,002 INFO L226 Difference]: Without dead ends: 6266 [2022-01-18 00:57:19,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1096, Invalid=3194, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:57:19,003 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 951 mSDsluCounter, 8950 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 9290 SdHoareTripleChecker+Invalid, 1959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:57:19,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [951 Valid, 9290 Invalid, 1959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1956 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:57:19,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6266 states. [2022-01-18 00:57:19,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6266 to 5418. [2022-01-18 00:57:19,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.630053535167067) internal successors, (14247), 5417 states have internal predecessors, (14247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:19,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14247 transitions. [2022-01-18 00:57:19,056 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14247 transitions. Word has length 137 [2022-01-18 00:57:19,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:57:19,057 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14247 transitions. [2022-01-18 00:57:19,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:19,057 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14247 transitions. [2022-01-18 00:57:19,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:57:19,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:57:19,061 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:57:19,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-01-18 00:57:19,061 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:57:19,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:57:19,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1693751943, now seen corresponding path program 100 times [2022-01-18 00:57:19,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:57:19,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655882587] [2022-01-18 00:57:19,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:57:19,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:57:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:57:19,554 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 00:57:19,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:57:19,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655882587] [2022-01-18 00:57:19,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655882587] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:57:19,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:57:19,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:57:19,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003401485] [2022-01-18 00:57:19,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:57:19,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:57:19,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:57:19,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:57:19,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:57:19,556 INFO L87 Difference]: Start difference. First operand 5418 states and 14247 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:22,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:57:22,794 INFO L93 Difference]: Finished difference Result 6494 states and 17080 transitions. [2022-01-18 00:57:22,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 00:57:22,794 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:57:22,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:57:22,802 INFO L225 Difference]: With dead ends: 6494 [2022-01-18 00:57:22,803 INFO L226 Difference]: Without dead ends: 6226 [2022-01-18 00:57:22,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1001, Invalid=3159, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 00:57:22,803 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 998 mSDsluCounter, 8653 mSDsCounter, 0 mSdLazyCounter, 1918 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 9000 SdHoareTripleChecker+Invalid, 1921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:57:22,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [998 Valid, 9000 Invalid, 1921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1918 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:57:22,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6226 states. [2022-01-18 00:57:22,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6226 to 5410. [2022-01-18 00:57:22,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.6306156405990015) internal successors, (14229), 5409 states have internal predecessors, (14229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:22,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14229 transitions. [2022-01-18 00:57:22,871 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14229 transitions. Word has length 137 [2022-01-18 00:57:22,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:57:22,871 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14229 transitions. [2022-01-18 00:57:22,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:22,871 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14229 transitions. [2022-01-18 00:57:22,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:57:22,877 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:57:22,877 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:57:22,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-01-18 00:57:22,877 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:57:22,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:57:22,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1608896783, now seen corresponding path program 101 times [2022-01-18 00:57:22,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:57:22,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974306139] [2022-01-18 00:57:22,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:57:22,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:57:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:57:23,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:57:23,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:57:23,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974306139] [2022-01-18 00:57:23,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974306139] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:57:23,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:57:23,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:57:23,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588284718] [2022-01-18 00:57:23,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:57:23,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:57:23,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:57:23,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:57:23,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:57:23,226 INFO L87 Difference]: Start difference. First operand 5410 states and 14229 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:27,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:57:27,271 INFO L93 Difference]: Finished difference Result 6578 states and 17290 transitions. [2022-01-18 00:57:27,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 00:57:27,271 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:57:27,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:57:27,279 INFO L225 Difference]: With dead ends: 6578 [2022-01-18 00:57:27,279 INFO L226 Difference]: Without dead ends: 6287 [2022-01-18 00:57:27,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 882 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1284, Invalid=3972, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 00:57:27,280 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 1164 mSDsluCounter, 7594 mSDsCounter, 0 mSdLazyCounter, 1715 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 7965 SdHoareTripleChecker+Invalid, 1718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:57:27,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1164 Valid, 7965 Invalid, 1718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1715 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:57:27,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6287 states. [2022-01-18 00:57:27,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6287 to 5414. [2022-01-18 00:57:27,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.62996489931646) internal successors, (14236), 5413 states have internal predecessors, (14236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:27,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14236 transitions. [2022-01-18 00:57:27,334 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14236 transitions. Word has length 137 [2022-01-18 00:57:27,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:57:27,334 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14236 transitions. [2022-01-18 00:57:27,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:27,334 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14236 transitions. [2022-01-18 00:57:27,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:57:27,338 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:57:27,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:57:27,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-01-18 00:57:27,339 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:57:27,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:57:27,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1190715129, now seen corresponding path program 102 times [2022-01-18 00:57:27,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:57:27,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987121672] [2022-01-18 00:57:27,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:57:27,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:57:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:57:27,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:57:27,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:57:27,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987121672] [2022-01-18 00:57:27,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987121672] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:57:27,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:57:27,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:57:27,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878213955] [2022-01-18 00:57:27,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:57:27,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:57:27,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:57:27,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:57:27,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:57:27,873 INFO L87 Difference]: Start difference. First operand 5414 states and 14236 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:32,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:57:32,361 INFO L93 Difference]: Finished difference Result 6479 states and 17037 transitions. [2022-01-18 00:57:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 00:57:32,361 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:57:32,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:57:32,368 INFO L225 Difference]: With dead ends: 6479 [2022-01-18 00:57:32,368 INFO L226 Difference]: Without dead ends: 6222 [2022-01-18 00:57:32,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1057, Invalid=3103, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 00:57:32,369 INFO L933 BasicCegarLoop]: 500 mSDtfsCounter, 1020 mSDsluCounter, 8860 mSDsCounter, 0 mSdLazyCounter, 1921 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 9200 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:57:32,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1020 Valid, 9200 Invalid, 1924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1921 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:57:32,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6222 states. [2022-01-18 00:57:32,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6222 to 5418. [2022-01-18 00:57:32,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.6293151190695956) internal successors, (14243), 5417 states have internal predecessors, (14243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:32,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14243 transitions. [2022-01-18 00:57:32,418 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14243 transitions. Word has length 137 [2022-01-18 00:57:32,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:57:32,419 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14243 transitions. [2022-01-18 00:57:32,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:32,419 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14243 transitions. [2022-01-18 00:57:32,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:57:32,423 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:57:32,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:57:32,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-01-18 00:57:32,424 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:57:32,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:57:32,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1611430733, now seen corresponding path program 103 times [2022-01-18 00:57:32,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:57:32,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875659964] [2022-01-18 00:57:32,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:57:32,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:57:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:57:32,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:57:32,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:57:32,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875659964] [2022-01-18 00:57:32,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875659964] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:57:32,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:57:32,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:57:32,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622596498] [2022-01-18 00:57:32,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:57:32,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:57:32,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:57:32,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:57:32,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:57:32,937 INFO L87 Difference]: Start difference. First operand 5418 states and 14243 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:37,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:57:37,755 INFO L93 Difference]: Finished difference Result 6434 states and 16911 transitions. [2022-01-18 00:57:37,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:57:37,755 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:57:37,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:57:37,763 INFO L225 Difference]: With dead ends: 6434 [2022-01-18 00:57:37,763 INFO L226 Difference]: Without dead ends: 6154 [2022-01-18 00:57:37,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1042, Invalid=3248, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:57:37,763 INFO L933 BasicCegarLoop]: 500 mSDtfsCounter, 1018 mSDsluCounter, 8923 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 9254 SdHoareTripleChecker+Invalid, 1946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:57:37,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1018 Valid, 9254 Invalid, 1946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:57:37,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6154 states. [2022-01-18 00:57:37,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6154 to 5398. [2022-01-18 00:57:37,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5398 states, 5397 states have (on average 2.6318324995367797) internal successors, (14204), 5397 states have internal predecessors, (14204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:37,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5398 states to 5398 states and 14204 transitions. [2022-01-18 00:57:37,816 INFO L78 Accepts]: Start accepts. Automaton has 5398 states and 14204 transitions. Word has length 137 [2022-01-18 00:57:37,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:57:37,816 INFO L470 AbstractCegarLoop]: Abstraction has 5398 states and 14204 transitions. [2022-01-18 00:57:37,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:37,816 INFO L276 IsEmpty]: Start isEmpty. Operand 5398 states and 14204 transitions. [2022-01-18 00:57:37,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:57:37,821 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:57:37,821 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:57:37,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-01-18 00:57:37,821 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:57:37,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:57:37,821 INFO L85 PathProgramCache]: Analyzing trace with hash 282411907, now seen corresponding path program 104 times [2022-01-18 00:57:37,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:57:37,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621501807] [2022-01-18 00:57:37,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:57:37,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:57:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:57:38,304 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 00:57:38,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:57:38,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621501807] [2022-01-18 00:57:38,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621501807] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:57:38,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:57:38,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:57:38,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835019254] [2022-01-18 00:57:38,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:57:38,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:57:38,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:57:38,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:57:38,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:57:38,306 INFO L87 Difference]: Start difference. First operand 5398 states and 14204 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:43,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:57:43,039 INFO L93 Difference]: Finished difference Result 6815 states and 17931 transitions. [2022-01-18 00:57:43,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 00:57:43,039 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:57:43,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:57:43,046 INFO L225 Difference]: With dead ends: 6815 [2022-01-18 00:57:43,046 INFO L226 Difference]: Without dead ends: 6493 [2022-01-18 00:57:43,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1225 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1590, Invalid=4890, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 00:57:43,047 INFO L933 BasicCegarLoop]: 517 mSDtfsCounter, 1107 mSDsluCounter, 8283 mSDsCounter, 0 mSdLazyCounter, 1863 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 8627 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:57:43,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1107 Valid, 8627 Invalid, 1866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1863 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:57:43,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6493 states. [2022-01-18 00:57:43,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6493 to 5418. [2022-01-18 00:57:43,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.6315303673620085) internal successors, (14255), 5417 states have internal predecessors, (14255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:43,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14255 transitions. [2022-01-18 00:57:43,096 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14255 transitions. Word has length 137 [2022-01-18 00:57:43,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:57:43,096 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14255 transitions. [2022-01-18 00:57:43,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:43,096 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14255 transitions. [2022-01-18 00:57:43,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:57:43,101 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:57:43,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:57:43,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-01-18 00:57:43,101 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:57:43,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:57:43,101 INFO L85 PathProgramCache]: Analyzing trace with hash 578014743, now seen corresponding path program 105 times [2022-01-18 00:57:43,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:57:43,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795250752] [2022-01-18 00:57:43,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:57:43,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:57:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:57:43,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:57:43,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:57:43,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795250752] [2022-01-18 00:57:43,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795250752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:57:43,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:57:43,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:57:43,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632455198] [2022-01-18 00:57:43,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:57:43,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:57:43,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:57:43,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:57:43,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:57:43,503 INFO L87 Difference]: Start difference. First operand 5418 states and 14255 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:48,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:57:48,783 INFO L93 Difference]: Finished difference Result 6758 states and 17789 transitions. [2022-01-18 00:57:48,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 00:57:48,783 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:57:48,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:57:48,792 INFO L225 Difference]: With dead ends: 6758 [2022-01-18 00:57:48,792 INFO L226 Difference]: Without dead ends: 6467 [2022-01-18 00:57:48,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 921 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1307, Invalid=4095, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 00:57:48,793 INFO L933 BasicCegarLoop]: 511 mSDtfsCounter, 1094 mSDsluCounter, 7849 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 8212 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:57:48,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1094 Valid, 8212 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:57:48,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6467 states. [2022-01-18 00:57:48,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6467 to 5422. [2022-01-18 00:57:48,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5422 states, 5421 states have (on average 2.630879911455451) internal successors, (14262), 5421 states have internal predecessors, (14262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:48,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5422 states to 5422 states and 14262 transitions. [2022-01-18 00:57:48,939 INFO L78 Accepts]: Start accepts. Automaton has 5422 states and 14262 transitions. Word has length 137 [2022-01-18 00:57:48,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:57:48,939 INFO L470 AbstractCegarLoop]: Abstraction has 5422 states and 14262 transitions. [2022-01-18 00:57:48,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:48,939 INFO L276 IsEmpty]: Start isEmpty. Operand 5422 states and 14262 transitions. [2022-01-18 00:57:48,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:57:48,944 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:57:48,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:57:48,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-01-18 00:57:48,944 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:57:48,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:57:48,944 INFO L85 PathProgramCache]: Analyzing trace with hash 159833089, now seen corresponding path program 106 times [2022-01-18 00:57:48,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:57:48,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55356774] [2022-01-18 00:57:48,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:57:48,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:57:48,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:57:49,375 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 00:57:49,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:57:49,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55356774] [2022-01-18 00:57:49,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55356774] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:57:49,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:57:49,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:57:49,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475941714] [2022-01-18 00:57:49,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:57:49,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:57:49,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:57:49,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:57:49,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:57:49,377 INFO L87 Difference]: Start difference. First operand 5422 states and 14262 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:52,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:57:52,630 INFO L93 Difference]: Finished difference Result 6655 states and 17525 transitions. [2022-01-18 00:57:52,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 00:57:52,630 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:57:52,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:57:52,637 INFO L225 Difference]: With dead ends: 6655 [2022-01-18 00:57:52,638 INFO L226 Difference]: Without dead ends: 6398 [2022-01-18 00:57:52,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1028, Invalid=3004, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 00:57:52,638 INFO L933 BasicCegarLoop]: 499 mSDtfsCounter, 937 mSDsluCounter, 8236 mSDsCounter, 0 mSdLazyCounter, 1845 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 8589 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:57:52,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [937 Valid, 8589 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1845 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:57:52,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6398 states. [2022-01-18 00:57:52,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6398 to 5426. [2022-01-18 00:57:52,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5426 states, 5425 states have (on average 2.630230414746544) internal successors, (14269), 5425 states have internal predecessors, (14269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:52,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5426 states to 5426 states and 14269 transitions. [2022-01-18 00:57:52,707 INFO L78 Accepts]: Start accepts. Automaton has 5426 states and 14269 transitions. Word has length 137 [2022-01-18 00:57:52,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:57:52,707 INFO L470 AbstractCegarLoop]: Abstraction has 5426 states and 14269 transitions. [2022-01-18 00:57:52,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:52,708 INFO L276 IsEmpty]: Start isEmpty. Operand 5426 states and 14269 transitions. [2022-01-18 00:57:52,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:57:52,712 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:57:52,712 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:57:52,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-01-18 00:57:52,712 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:57:52,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:57:52,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1652654523, now seen corresponding path program 107 times [2022-01-18 00:57:52,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:57:52,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172497379] [2022-01-18 00:57:52,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:57:52,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:57:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:57:53,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:57:53,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:57:53,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172497379] [2022-01-18 00:57:53,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172497379] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:57:53,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:57:53,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:57:53,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395408321] [2022-01-18 00:57:53,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:57:53,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:57:53,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:57:53,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:57:53,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:57:53,243 INFO L87 Difference]: Start difference. First operand 5426 states and 14269 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:56,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:57:56,832 INFO L93 Difference]: Finished difference Result 6626 states and 17443 transitions. [2022-01-18 00:57:56,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:57:56,833 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:57:56,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:57:56,841 INFO L225 Difference]: With dead ends: 6626 [2022-01-18 00:57:56,841 INFO L226 Difference]: Without dead ends: 6354 [2022-01-18 00:57:56,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1030, Invalid=3260, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:57:56,842 INFO L933 BasicCegarLoop]: 504 mSDtfsCounter, 986 mSDsluCounter, 8960 mSDsCounter, 0 mSdLazyCounter, 2020 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 9292 SdHoareTripleChecker+Invalid, 2023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:57:56,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [986 Valid, 9292 Invalid, 2023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2020 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:57:56,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6354 states. [2022-01-18 00:57:56,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6354 to 5414. [2022-01-18 00:57:56,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.631442822833918) internal successors, (14244), 5413 states have internal predecessors, (14244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:56,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14244 transitions. [2022-01-18 00:57:56,896 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14244 transitions. Word has length 137 [2022-01-18 00:57:56,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:57:56,896 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14244 transitions. [2022-01-18 00:57:56,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:57:56,896 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14244 transitions. [2022-01-18 00:57:56,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:57:56,900 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:57:56,900 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:57:56,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-01-18 00:57:56,901 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:57:56,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:57:56,901 INFO L85 PathProgramCache]: Analyzing trace with hash -127499685, now seen corresponding path program 108 times [2022-01-18 00:57:56,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:57:56,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507137862] [2022-01-18 00:57:56,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:57:56,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:57:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:57:57,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:57:57,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:57:57,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507137862] [2022-01-18 00:57:57,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507137862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:57:57,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:57:57,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:57:57,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240263776] [2022-01-18 00:57:57,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:57:57,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:57:57,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:57:57,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:57:57,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:57:57,280 INFO L87 Difference]: Start difference. First operand 5414 states and 14244 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:01,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:58:01,532 INFO L93 Difference]: Finished difference Result 6619 states and 17418 transitions. [2022-01-18 00:58:01,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 00:58:01,532 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:58:01,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:58:01,539 INFO L225 Difference]: With dead ends: 6619 [2022-01-18 00:58:01,539 INFO L226 Difference]: Without dead ends: 6334 [2022-01-18 00:58:01,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1325, Invalid=3645, Unknown=0, NotChecked=0, Total=4970 [2022-01-18 00:58:01,540 INFO L933 BasicCegarLoop]: 501 mSDtfsCounter, 1075 mSDsluCounter, 8541 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 8882 SdHoareTripleChecker+Invalid, 1858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:58:01,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1075 Valid, 8882 Invalid, 1858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1855 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:58:01,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6334 states. [2022-01-18 00:58:01,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6334 to 5422. [2022-01-18 00:58:01,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5422 states, 5421 states have (on average 2.630879911455451) internal successors, (14262), 5421 states have internal predecessors, (14262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:01,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5422 states to 5422 states and 14262 transitions. [2022-01-18 00:58:01,603 INFO L78 Accepts]: Start accepts. Automaton has 5422 states and 14262 transitions. Word has length 137 [2022-01-18 00:58:01,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:58:01,603 INFO L470 AbstractCegarLoop]: Abstraction has 5422 states and 14262 transitions. [2022-01-18 00:58:01,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:01,603 INFO L276 IsEmpty]: Start isEmpty. Operand 5422 states and 14262 transitions. [2022-01-18 00:58:01,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:58:01,609 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:58:01,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:58:01,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-01-18 00:58:01,609 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:58:01,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:58:01,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1116462409, now seen corresponding path program 109 times [2022-01-18 00:58:01,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:58:01,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755669630] [2022-01-18 00:58:01,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:58:01,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:58:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:58:02,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:58:02,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:58:02,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755669630] [2022-01-18 00:58:02,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755669630] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:58:02,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:58:02,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:58:02,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791948193] [2022-01-18 00:58:02,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:58:02,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:58:02,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:58:02,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:58:02,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:58:02,135 INFO L87 Difference]: Start difference. First operand 5422 states and 14262 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:06,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:58:06,682 INFO L93 Difference]: Finished difference Result 6591 states and 17349 transitions. [2022-01-18 00:58:06,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:58:06,682 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:58:06,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:58:06,690 INFO L225 Difference]: With dead ends: 6591 [2022-01-18 00:58:06,690 INFO L226 Difference]: Without dead ends: 6334 [2022-01-18 00:58:06,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1104, Invalid=3186, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:58:06,691 INFO L933 BasicCegarLoop]: 501 mSDtfsCounter, 941 mSDsluCounter, 7549 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 7923 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:58:06,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [941 Valid, 7923 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1705 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:58:06,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6334 states. [2022-01-18 00:58:06,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6334 to 5426. [2022-01-18 00:58:06,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5426 states, 5425 states have (on average 2.630230414746544) internal successors, (14269), 5425 states have internal predecessors, (14269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:06,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5426 states to 5426 states and 14269 transitions. [2022-01-18 00:58:06,746 INFO L78 Accepts]: Start accepts. Automaton has 5426 states and 14269 transitions. Word has length 137 [2022-01-18 00:58:06,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:58:06,746 INFO L470 AbstractCegarLoop]: Abstraction has 5426 states and 14269 transitions. [2022-01-18 00:58:06,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:06,746 INFO L276 IsEmpty]: Start isEmpty. Operand 5426 states and 14269 transitions. [2022-01-18 00:58:06,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:58:06,751 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:58:06,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:58:06,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-01-18 00:58:06,751 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:58:06,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:58:06,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1685683453, now seen corresponding path program 110 times [2022-01-18 00:58:06,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:58:06,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086061953] [2022-01-18 00:58:06,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:58:06,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:58:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:58:07,163 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 00:58:07,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:58:07,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086061953] [2022-01-18 00:58:07,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086061953] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:58:07,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:58:07,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:58:07,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358986953] [2022-01-18 00:58:07,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:58:07,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:58:07,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:58:07,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:58:07,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:58:07,164 INFO L87 Difference]: Start difference. First operand 5426 states and 14269 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:10,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:58:10,952 INFO L93 Difference]: Finished difference Result 6562 states and 17267 transitions. [2022-01-18 00:58:10,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 00:58:10,952 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:58:10,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:58:10,960 INFO L225 Difference]: With dead ends: 6562 [2022-01-18 00:58:10,960 INFO L226 Difference]: Without dead ends: 6294 [2022-01-18 00:58:10,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=996, Invalid=3164, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 00:58:10,961 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 926 mSDsluCounter, 8880 mSDsCounter, 0 mSdLazyCounter, 1985 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 9218 SdHoareTripleChecker+Invalid, 1988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:58:10,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [926 Valid, 9218 Invalid, 1988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1985 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:58:10,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6294 states. [2022-01-18 00:58:11,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6294 to 5418. [2022-01-18 00:58:11,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.6307919512645377) internal successors, (14251), 5417 states have internal predecessors, (14251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:11,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14251 transitions. [2022-01-18 00:58:11,014 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14251 transitions. Word has length 137 [2022-01-18 00:58:11,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:58:11,014 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14251 transitions. [2022-01-18 00:58:11,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:11,014 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14251 transitions. [2022-01-18 00:58:11,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:58:11,050 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:58:11,051 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] [2022-01-18 00:58:11,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-01-18 00:58:11,051 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:58:11,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:58:11,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1616965273, now seen corresponding path program 111 times [2022-01-18 00:58:11,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:58:11,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462287543] [2022-01-18 00:58:11,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:58:11,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:58:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:58:11,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:58:11,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:58:11,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462287543] [2022-01-18 00:58:11,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462287543] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:58:11,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:58:11,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:58:11,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013880540] [2022-01-18 00:58:11,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:58:11,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:58:11,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:58:11,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:58:11,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:58:11,541 INFO L87 Difference]: Start difference. First operand 5418 states and 14251 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:16,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:58:16,410 INFO L93 Difference]: Finished difference Result 6694 states and 17609 transitions. [2022-01-18 00:58:16,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 00:58:16,410 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:58:16,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:58:16,418 INFO L225 Difference]: With dead ends: 6694 [2022-01-18 00:58:16,418 INFO L226 Difference]: Without dead ends: 6403 [2022-01-18 00:58:16,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1271, Invalid=3985, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 00:58:16,419 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 1040 mSDsluCounter, 8918 mSDsCounter, 0 mSdLazyCounter, 1991 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 9249 SdHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 00:58:16,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1040 Valid, 9249 Invalid, 1994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1991 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 00:58:16,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6403 states. [2022-01-18 00:58:16,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6403 to 5422. [2022-01-18 00:58:16,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5422 states, 5421 states have (on average 2.6301420402139826) internal successors, (14258), 5421 states have internal predecessors, (14258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:16,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5422 states to 5422 states and 14258 transitions. [2022-01-18 00:58:16,474 INFO L78 Accepts]: Start accepts. Automaton has 5422 states and 14258 transitions. Word has length 137 [2022-01-18 00:58:16,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:58:16,474 INFO L470 AbstractCegarLoop]: Abstraction has 5422 states and 14258 transitions. [2022-01-18 00:58:16,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:16,474 INFO L276 IsEmpty]: Start isEmpty. Operand 5422 states and 14258 transitions. [2022-01-18 00:58:16,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:58:16,478 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:58:16,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:58:16,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-01-18 00:58:16,479 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:58:16,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:58:16,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1198783619, now seen corresponding path program 112 times [2022-01-18 00:58:16,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:58:16,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477474403] [2022-01-18 00:58:16,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:58:16,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:58:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:58:16,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:58:16,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:58:16,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477474403] [2022-01-18 00:58:16,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477474403] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:58:16,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:58:16,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:58:16,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853367259] [2022-01-18 00:58:16,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:58:16,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:58:16,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:58:16,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:58:16,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:58:16,959 INFO L87 Difference]: Start difference. First operand 5422 states and 14258 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:20,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:58:20,764 INFO L93 Difference]: Finished difference Result 6591 states and 17345 transitions. [2022-01-18 00:58:20,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 00:58:20,764 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:58:20,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:58:20,772 INFO L225 Difference]: With dead ends: 6591 [2022-01-18 00:58:20,772 INFO L226 Difference]: Without dead ends: 6334 [2022-01-18 00:58:20,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1063, Invalid=3097, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 00:58:20,773 INFO L933 BasicCegarLoop]: 501 mSDtfsCounter, 958 mSDsluCounter, 8626 mSDsCounter, 0 mSdLazyCounter, 1913 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 8972 SdHoareTripleChecker+Invalid, 1916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:58:20,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [958 Valid, 8972 Invalid, 1916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1913 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:58:20,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6334 states. [2022-01-18 00:58:20,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6334 to 5426. [2022-01-18 00:58:20,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5426 states, 5425 states have (on average 2.6294930875576035) internal successors, (14265), 5425 states have internal predecessors, (14265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:20,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5426 states to 5426 states and 14265 transitions. [2022-01-18 00:58:20,830 INFO L78 Accepts]: Start accepts. Automaton has 5426 states and 14265 transitions. Word has length 137 [2022-01-18 00:58:20,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:58:20,830 INFO L470 AbstractCegarLoop]: Abstraction has 5426 states and 14265 transitions. [2022-01-18 00:58:20,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:20,831 INFO L276 IsEmpty]: Start isEmpty. Operand 5426 states and 14265 transitions. [2022-01-18 00:58:20,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:58:20,835 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:58:20,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:58:20,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-01-18 00:58:20,836 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:58:20,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:58:20,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1603362243, now seen corresponding path program 113 times [2022-01-18 00:58:20,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:58:20,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499801219] [2022-01-18 00:58:20,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:58:20,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:58:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:58:21,374 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 00:58:21,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:58:21,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499801219] [2022-01-18 00:58:21,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499801219] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:58:21,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:58:21,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:58:21,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528011087] [2022-01-18 00:58:21,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:58:21,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:58:21,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:58:21,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:58:21,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:58:21,375 INFO L87 Difference]: Start difference. First operand 5426 states and 14265 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:24,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:58:24,973 INFO L93 Difference]: Finished difference Result 6562 states and 17263 transitions. [2022-01-18 00:58:24,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:58:24,973 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:58:24,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:58:24,980 INFO L225 Difference]: With dead ends: 6562 [2022-01-18 00:58:24,980 INFO L226 Difference]: Without dead ends: 6286 [2022-01-18 00:58:24,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1035, Invalid=3255, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:58:24,981 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 1109 mSDsluCounter, 8613 mSDsCounter, 0 mSdLazyCounter, 1918 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 8964 SdHoareTripleChecker+Invalid, 1921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:58:24,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 8964 Invalid, 1921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1918 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:58:24,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6286 states. [2022-01-18 00:58:25,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6286 to 5410. [2022-01-18 00:58:25,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.6313551488260307) internal successors, (14233), 5409 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:25,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14233 transitions. [2022-01-18 00:58:25,032 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14233 transitions. Word has length 137 [2022-01-18 00:58:25,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:58:25,033 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14233 transitions. [2022-01-18 00:58:25,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:25,033 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14233 transitions. [2022-01-18 00:58:25,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:58:25,037 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:58:25,037 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:58:25,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-01-18 00:58:25,038 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:58:25,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:58:25,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1622404839, now seen corresponding path program 114 times [2022-01-18 00:58:25,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:58:25,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421259036] [2022-01-18 00:58:25,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:58:25,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:58:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:58:25,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:58:25,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:58:25,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421259036] [2022-01-18 00:58:25,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421259036] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:58:25,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:58:25,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:58:25,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988280045] [2022-01-18 00:58:25,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:58:25,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:58:25,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:58:25,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:58:25,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:58:25,551 INFO L87 Difference]: Start difference. First operand 5410 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:31,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:58:31,787 INFO L93 Difference]: Finished difference Result 6838 states and 17959 transitions. [2022-01-18 00:58:31,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-01-18 00:58:31,787 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:58:31,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:58:31,797 INFO L225 Difference]: With dead ends: 6838 [2022-01-18 00:58:31,797 INFO L226 Difference]: Without dead ends: 6423 [2022-01-18 00:58:31,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1566 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=1904, Invalid=5752, Unknown=0, NotChecked=0, Total=7656 [2022-01-18 00:58:31,799 INFO L933 BasicCegarLoop]: 526 mSDtfsCounter, 1162 mSDsluCounter, 9688 mSDsCounter, 0 mSdLazyCounter, 2142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 9986 SdHoareTripleChecker+Invalid, 2145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:58:31,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1162 Valid, 9986 Invalid, 2145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2142 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:58:31,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6423 states. [2022-01-18 00:58:31,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6423 to 5422. [2022-01-18 00:58:31,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5422 states, 5421 states have (on average 2.6294041689725143) internal successors, (14254), 5421 states have internal predecessors, (14254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:31,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5422 states to 5422 states and 14254 transitions. [2022-01-18 00:58:31,854 INFO L78 Accepts]: Start accepts. Automaton has 5422 states and 14254 transitions. Word has length 137 [2022-01-18 00:58:31,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:58:31,854 INFO L470 AbstractCegarLoop]: Abstraction has 5422 states and 14254 transitions. [2022-01-18 00:58:31,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:31,854 INFO L276 IsEmpty]: Start isEmpty. Operand 5422 states and 14254 transitions. [2022-01-18 00:58:31,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:58:31,859 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:58:31,859 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:58:31,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-01-18 00:58:31,859 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:58:31,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:58:31,859 INFO L85 PathProgramCache]: Analyzing trace with hash 772219969, now seen corresponding path program 115 times [2022-01-18 00:58:31,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:58:31,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354897401] [2022-01-18 00:58:31,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:58:31,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:58:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:58:32,471 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 00:58:32,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:58:32,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354897401] [2022-01-18 00:58:32,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354897401] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:58:32,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:58:32,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:58:32,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290503608] [2022-01-18 00:58:32,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:58:32,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:58:32,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:58:32,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:58:32,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:58:32,472 INFO L87 Difference]: Start difference. First operand 5422 states and 14254 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:37,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:58:37,331 INFO L93 Difference]: Finished difference Result 6691 states and 17574 transitions. [2022-01-18 00:58:37,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 00:58:37,332 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:58:37,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:58:37,342 INFO L225 Difference]: With dead ends: 6691 [2022-01-18 00:58:37,342 INFO L226 Difference]: Without dead ends: 6369 [2022-01-18 00:58:37,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1213 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1615, Invalid=5027, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 00:58:37,343 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 1231 mSDsluCounter, 8931 mSDsCounter, 0 mSdLazyCounter, 1991 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 9261 SdHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:58:37,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1231 Valid, 9261 Invalid, 1994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1991 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:58:37,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6369 states. [2022-01-18 00:58:37,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6369 to 5426. [2022-01-18 00:58:37,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5426 states, 5425 states have (on average 2.6287557603686635) internal successors, (14261), 5425 states have internal predecessors, (14261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:37,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5426 states to 5426 states and 14261 transitions. [2022-01-18 00:58:37,405 INFO L78 Accepts]: Start accepts. Automaton has 5426 states and 14261 transitions. Word has length 137 [2022-01-18 00:58:37,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:58:37,405 INFO L470 AbstractCegarLoop]: Abstraction has 5426 states and 14261 transitions. [2022-01-18 00:58:37,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:37,405 INFO L276 IsEmpty]: Start isEmpty. Operand 5426 states and 14261 transitions. [2022-01-18 00:58:37,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:58:37,410 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:58:37,410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:58:37,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-01-18 00:58:37,411 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:58:37,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:58:37,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1067822805, now seen corresponding path program 116 times [2022-01-18 00:58:37,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:58:37,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452300976] [2022-01-18 00:58:37,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:58:37,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:58:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:58:37,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:58:37,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:58:37,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452300976] [2022-01-18 00:58:37,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452300976] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:58:37,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:58:37,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:58:37,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752615352] [2022-01-18 00:58:37,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:58:37,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:58:37,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:58:37,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:58:37,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:58:37,822 INFO L87 Difference]: Start difference. First operand 5426 states and 14261 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:42,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:58:42,312 INFO L93 Difference]: Finished difference Result 6606 states and 17355 transitions. [2022-01-18 00:58:42,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 00:58:42,312 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:58:42,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:58:42,320 INFO L225 Difference]: With dead ends: 6606 [2022-01-18 00:58:42,320 INFO L226 Difference]: Without dead ends: 6315 [2022-01-18 00:58:42,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 928 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1297, Invalid=4105, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 00:58:42,321 INFO L933 BasicCegarLoop]: 511 mSDtfsCounter, 1092 mSDsluCounter, 7618 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 7986 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:58:42,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1092 Valid, 7986 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:58:42,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6315 states. [2022-01-18 00:58:42,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6315 to 5430. [2022-01-18 00:58:42,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5430 states, 5429 states have (on average 2.628108307238902) internal successors, (14268), 5429 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:42,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5430 states to 5430 states and 14268 transitions. [2022-01-18 00:58:42,376 INFO L78 Accepts]: Start accepts. Automaton has 5430 states and 14268 transitions. Word has length 137 [2022-01-18 00:58:42,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:58:42,376 INFO L470 AbstractCegarLoop]: Abstraction has 5430 states and 14268 transitions. [2022-01-18 00:58:42,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:42,376 INFO L276 IsEmpty]: Start isEmpty. Operand 5430 states and 14268 transitions. [2022-01-18 00:58:42,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:58:42,381 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:58:42,381 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:58:42,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-01-18 00:58:42,381 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:58:42,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:58:42,381 INFO L85 PathProgramCache]: Analyzing trace with hash 649641151, now seen corresponding path program 117 times [2022-01-18 00:58:42,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:58:42,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4861810] [2022-01-18 00:58:42,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:58:42,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:58:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:58:42,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:58:42,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:58:42,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4861810] [2022-01-18 00:58:42,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4861810] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:58:42,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:58:42,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:58:42,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154466508] [2022-01-18 00:58:42,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:58:42,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:58:42,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:58:42,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:58:42,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:58:42,805 INFO L87 Difference]: Start difference. First operand 5430 states and 14268 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:45,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:58:45,903 INFO L93 Difference]: Finished difference Result 6499 states and 17080 transitions. [2022-01-18 00:58:45,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 00:58:45,906 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:58:45,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:58:45,913 INFO L225 Difference]: With dead ends: 6499 [2022-01-18 00:58:45,913 INFO L226 Difference]: Without dead ends: 6242 [2022-01-18 00:58:45,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=993, Invalid=2913, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 00:58:45,915 INFO L933 BasicCegarLoop]: 498 mSDtfsCounter, 1033 mSDsluCounter, 8406 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 8756 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 00:58:45,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1033 Valid, 8756 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1874 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 00:58:45,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6242 states. [2022-01-18 00:58:45,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6242 to 5434. [2022-01-18 00:58:45,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 5433 states have (on average 2.627461807472851) internal successors, (14275), 5433 states have internal predecessors, (14275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:45,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 14275 transitions. [2022-01-18 00:58:45,968 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 14275 transitions. Word has length 137 [2022-01-18 00:58:45,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:58:45,968 INFO L470 AbstractCegarLoop]: Abstraction has 5434 states and 14275 transitions. [2022-01-18 00:58:45,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:45,968 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 14275 transitions. [2022-01-18 00:58:45,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:58:45,973 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:58:45,973 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:58:45,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-01-18 00:58:45,973 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:58:45,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:58:45,973 INFO L85 PathProgramCache]: Analyzing trace with hash 2142462585, now seen corresponding path program 118 times [2022-01-18 00:58:45,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:58:45,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886923162] [2022-01-18 00:58:45,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:58:45,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:58:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:58:46,380 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 00:58:46,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:58:46,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886923162] [2022-01-18 00:58:46,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886923162] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:58:46,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:58:46,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:58:46,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495997457] [2022-01-18 00:58:46,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:58:46,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:58:46,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:58:46,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:58:46,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:58:46,381 INFO L87 Difference]: Start difference. First operand 5434 states and 14275 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:49,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:58:49,714 INFO L93 Difference]: Finished difference Result 6450 states and 16943 transitions. [2022-01-18 00:58:49,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:58:49,714 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:58:49,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:58:49,722 INFO L225 Difference]: With dead ends: 6450 [2022-01-18 00:58:49,723 INFO L226 Difference]: Without dead ends: 6142 [2022-01-18 00:58:49,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1025, Invalid=3265, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:58:49,723 INFO L933 BasicCegarLoop]: 498 mSDtfsCounter, 982 mSDsluCounter, 9047 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 9373 SdHoareTripleChecker+Invalid, 1995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:58:49,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [982 Valid, 9373 Invalid, 1995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:58:49,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6142 states. [2022-01-18 00:58:49,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6142 to 5386. [2022-01-18 00:58:49,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5386 states, 5385 states have (on average 2.631569173630455) internal successors, (14171), 5385 states have internal predecessors, (14171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:49,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5386 states to 5386 states and 14171 transitions. [2022-01-18 00:58:49,798 INFO L78 Accepts]: Start accepts. Automaton has 5386 states and 14171 transitions. Word has length 137 [2022-01-18 00:58:49,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:58:49,798 INFO L470 AbstractCegarLoop]: Abstraction has 5386 states and 14171 transitions. [2022-01-18 00:58:49,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:49,798 INFO L276 IsEmpty]: Start isEmpty. Operand 5386 states and 14171 transitions. [2022-01-18 00:58:49,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:58:49,804 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:58:49,804 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:58:49,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-01-18 00:58:49,804 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:58:49,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:58:49,804 INFO L85 PathProgramCache]: Analyzing trace with hash -829274443, now seen corresponding path program 119 times [2022-01-18 00:58:49,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:58:49,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952919213] [2022-01-18 00:58:49,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:58:49,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:58:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:58:50,272 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 00:58:50,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:58:50,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952919213] [2022-01-18 00:58:50,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952919213] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:58:50,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:58:50,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:58:50,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704016766] [2022-01-18 00:58:50,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:58:50,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:58:50,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:58:50,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:58:50,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:58:50,273 INFO L87 Difference]: Start difference. First operand 5386 states and 14171 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:55,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:58:55,721 INFO L93 Difference]: Finished difference Result 6867 states and 18058 transitions. [2022-01-18 00:58:55,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 00:58:55,721 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:58:55,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:58:55,728 INFO L225 Difference]: With dead ends: 6867 [2022-01-18 00:58:55,728 INFO L226 Difference]: Without dead ends: 6545 [2022-01-18 00:58:55,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1230 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1575, Invalid=4905, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 00:58:55,729 INFO L933 BasicCegarLoop]: 517 mSDtfsCounter, 1100 mSDsluCounter, 9011 mSDsCounter, 0 mSdLazyCounter, 1967 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 9332 SdHoareTripleChecker+Invalid, 1970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:58:55,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1100 Valid, 9332 Invalid, 1970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1967 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:58:55,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6545 states. [2022-01-18 00:58:55,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6545 to 5410. [2022-01-18 00:58:55,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.6313551488260307) internal successors, (14233), 5409 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:55,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14233 transitions. [2022-01-18 00:58:55,779 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14233 transitions. Word has length 137 [2022-01-18 00:58:55,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:58:55,779 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14233 transitions. [2022-01-18 00:58:55,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:58:55,779 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14233 transitions. [2022-01-18 00:58:55,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:58:55,784 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:58:55,784 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:58:55,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-01-18 00:58:55,784 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:58:55,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:58:55,784 INFO L85 PathProgramCache]: Analyzing trace with hash -533671607, now seen corresponding path program 120 times [2022-01-18 00:58:55,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:58:55,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949064749] [2022-01-18 00:58:55,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:58:55,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:58:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:58:56,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:58:56,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:58:56,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949064749] [2022-01-18 00:58:56,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949064749] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:58:56,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:58:56,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:58:56,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011473245] [2022-01-18 00:58:56,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:58:56,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:58:56,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:58:56,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:58:56,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:58:56,145 INFO L87 Difference]: Start difference. First operand 5410 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:01,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:59:01,139 INFO L93 Difference]: Finished difference Result 6810 states and 17916 transitions. [2022-01-18 00:59:01,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 00:59:01,139 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:59:01,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:59:01,148 INFO L225 Difference]: With dead ends: 6810 [2022-01-18 00:59:01,148 INFO L226 Difference]: Without dead ends: 6519 [2022-01-18 00:59:01,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 874 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1295, Invalid=4107, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 00:59:01,149 INFO L933 BasicCegarLoop]: 511 mSDtfsCounter, 1024 mSDsluCounter, 9312 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 9631 SdHoareTripleChecker+Invalid, 2039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:59:01,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1024 Valid, 9631 Invalid, 2039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2036 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:59:01,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6519 states. [2022-01-18 00:59:01,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6519 to 5414. [2022-01-18 00:59:01,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.6307038610751894) internal successors, (14240), 5413 states have internal predecessors, (14240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:01,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14240 transitions. [2022-01-18 00:59:01,203 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14240 transitions. Word has length 137 [2022-01-18 00:59:01,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:59:01,204 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14240 transitions. [2022-01-18 00:59:01,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:01,204 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14240 transitions. [2022-01-18 00:59:01,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:59:01,208 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:59:01,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:59:01,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-01-18 00:59:01,208 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:59:01,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:59:01,209 INFO L85 PathProgramCache]: Analyzing trace with hash -951853261, now seen corresponding path program 121 times [2022-01-18 00:59:01,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:59:01,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120369437] [2022-01-18 00:59:01,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:59:01,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:59:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:59:01,732 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 00:59:01,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:59:01,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120369437] [2022-01-18 00:59:01,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120369437] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:59:01,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:59:01,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:59:01,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977493927] [2022-01-18 00:59:01,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:59:01,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:59:01,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:59:01,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:59:01,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:59:01,733 INFO L87 Difference]: Start difference. First operand 5414 states and 14240 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:06,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:59:06,426 INFO L93 Difference]: Finished difference Result 6707 states and 17652 transitions. [2022-01-18 00:59:06,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 00:59:06,427 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:59:06,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:59:06,434 INFO L225 Difference]: With dead ends: 6707 [2022-01-18 00:59:06,434 INFO L226 Difference]: Without dead ends: 6450 [2022-01-18 00:59:06,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1031, Invalid=3001, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 00:59:06,435 INFO L933 BasicCegarLoop]: 499 mSDtfsCounter, 948 mSDsluCounter, 9235 mSDsCounter, 0 mSdLazyCounter, 2012 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 9562 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 00:59:06,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [948 Valid, 9562 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2012 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 00:59:06,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6450 states. [2022-01-18 00:59:06,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6450 to 5418. [2022-01-18 00:59:06,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.630053535167067) internal successors, (14247), 5417 states have internal predecessors, (14247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:06,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14247 transitions. [2022-01-18 00:59:06,489 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14247 transitions. Word has length 137 [2022-01-18 00:59:06,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:59:06,489 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14247 transitions. [2022-01-18 00:59:06,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:06,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14247 transitions. [2022-01-18 00:59:06,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:59:06,493 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:59:06,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:59:06,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-01-18 00:59:06,494 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:59:06,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:59:06,494 INFO L85 PathProgramCache]: Analyzing trace with hash 540968173, now seen corresponding path program 122 times [2022-01-18 00:59:06,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:59:06,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362286451] [2022-01-18 00:59:06,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:59:06,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:59:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:59:06,886 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 00:59:06,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:59:06,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362286451] [2022-01-18 00:59:06,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362286451] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:59:06,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:59:06,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:59:06,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996734853] [2022-01-18 00:59:06,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:59:06,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:59:06,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:59:06,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:59:06,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:59:06,887 INFO L87 Difference]: Start difference. First operand 5418 states and 14247 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:10,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:59:10,168 INFO L93 Difference]: Finished difference Result 6678 states and 17570 transitions. [2022-01-18 00:59:10,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:59:10,168 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:59:10,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:59:10,176 INFO L225 Difference]: With dead ends: 6678 [2022-01-18 00:59:10,176 INFO L226 Difference]: Without dead ends: 6406 [2022-01-18 00:59:10,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1024, Invalid=3266, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:59:10,177 INFO L933 BasicCegarLoop]: 504 mSDtfsCounter, 978 mSDsluCounter, 8691 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 9035 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:59:10,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 9035 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:59:10,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6406 states. [2022-01-18 00:59:10,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6406 to 5406. [2022-01-18 00:59:10,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 5405 states have (on average 2.631267345050879) internal successors, (14222), 5405 states have internal predecessors, (14222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:10,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 14222 transitions. [2022-01-18 00:59:10,231 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 14222 transitions. Word has length 137 [2022-01-18 00:59:10,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:59:10,231 INFO L470 AbstractCegarLoop]: Abstraction has 5406 states and 14222 transitions. [2022-01-18 00:59:10,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:10,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 14222 transitions. [2022-01-18 00:59:10,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:59:10,236 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:59:10,236 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:59:10,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-01-18 00:59:10,236 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:59:10,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:59:10,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1239186035, now seen corresponding path program 123 times [2022-01-18 00:59:10,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:59:10,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614269390] [2022-01-18 00:59:10,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:59:10,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:59:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:59:10,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:59:10,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:59:10,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614269390] [2022-01-18 00:59:10,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614269390] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:59:10,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:59:10,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:59:10,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507162544] [2022-01-18 00:59:10,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:59:10,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:59:10,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:59:10,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:59:10,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:59:10,702 INFO L87 Difference]: Start difference. First operand 5406 states and 14222 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:14,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:59:14,468 INFO L93 Difference]: Finished difference Result 6623 states and 17429 transitions. [2022-01-18 00:59:14,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 00:59:14,468 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:59:14,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:59:14,475 INFO L225 Difference]: With dead ends: 6623 [2022-01-18 00:59:14,475 INFO L226 Difference]: Without dead ends: 6338 [2022-01-18 00:59:14,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1295, Invalid=3535, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 00:59:14,475 INFO L933 BasicCegarLoop]: 501 mSDtfsCounter, 1039 mSDsluCounter, 7667 mSDsCounter, 0 mSdLazyCounter, 1675 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 8029 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:59:14,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1039 Valid, 8029 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1675 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:59:14,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6338 states. [2022-01-18 00:59:14,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6338 to 5414. [2022-01-18 00:59:14,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.6307038610751894) internal successors, (14240), 5413 states have internal predecessors, (14240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:14,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14240 transitions. [2022-01-18 00:59:14,524 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14240 transitions. Word has length 137 [2022-01-18 00:59:14,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:59:14,524 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14240 transitions. [2022-01-18 00:59:14,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:14,524 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14240 transitions. [2022-01-18 00:59:14,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:59:14,529 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:59:14,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:59:14,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-01-18 00:59:14,529 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:59:14,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:59:14,529 INFO L85 PathProgramCache]: Analyzing trace with hash 4776059, now seen corresponding path program 124 times [2022-01-18 00:59:14,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:59:14,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601657488] [2022-01-18 00:59:14,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:59:14,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:59:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:59:14,877 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 00:59:14,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:59:14,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601657488] [2022-01-18 00:59:14,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601657488] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:59:14,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:59:14,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:59:14,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801600023] [2022-01-18 00:59:14,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:59:14,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:59:14,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:59:14,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:59:14,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:59:14,878 INFO L87 Difference]: Start difference. First operand 5414 states and 14240 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:19,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:59:19,475 INFO L93 Difference]: Finished difference Result 6631 states and 17447 transitions. [2022-01-18 00:59:19,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:59:19,476 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:59:19,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:59:19,484 INFO L225 Difference]: With dead ends: 6631 [2022-01-18 00:59:19,484 INFO L226 Difference]: Without dead ends: 6374 [2022-01-18 00:59:19,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1106, Invalid=3184, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:59:19,485 INFO L933 BasicCegarLoop]: 501 mSDtfsCounter, 1140 mSDsluCounter, 8455 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 8810 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:59:19,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 8810 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1843 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:59:19,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6374 states. [2022-01-18 00:59:19,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6374 to 5418. [2022-01-18 00:59:19,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.630053535167067) internal successors, (14247), 5417 states have internal predecessors, (14247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:19,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14247 transitions. [2022-01-18 00:59:19,542 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14247 transitions. Word has length 137 [2022-01-18 00:59:19,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:59:19,542 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14247 transitions. [2022-01-18 00:59:19,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:19,542 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14247 transitions. [2022-01-18 00:59:19,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:59:19,547 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:59:19,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:59:19,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-01-18 00:59:19,547 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:59:19,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:59:19,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1497597493, now seen corresponding path program 125 times [2022-01-18 00:59:19,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:59:19,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95262015] [2022-01-18 00:59:19,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:59:19,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:59:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:59:20,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:59:20,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:59:20,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95262015] [2022-01-18 00:59:20,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95262015] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:59:20,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:59:20,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:59:20,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601172199] [2022-01-18 00:59:20,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:59:20,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:59:20,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:59:20,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:59:20,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:59:20,122 INFO L87 Difference]: Start difference. First operand 5418 states and 14247 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:24,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:59:24,415 INFO L93 Difference]: Finished difference Result 6602 states and 17365 transitions. [2022-01-18 00:59:24,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 00:59:24,415 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:59:24,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:59:24,423 INFO L225 Difference]: With dead ends: 6602 [2022-01-18 00:59:24,423 INFO L226 Difference]: Without dead ends: 6334 [2022-01-18 00:59:24,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=991, Invalid=3169, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 00:59:24,424 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 965 mSDsluCounter, 8836 mSDsCounter, 0 mSdLazyCounter, 1946 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 9177 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:59:24,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [965 Valid, 9177 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1946 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:59:24,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6334 states. [2022-01-18 00:59:24,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6334 to 5410. [2022-01-18 00:59:24,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.6306156405990015) internal successors, (14229), 5409 states have internal predecessors, (14229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:24,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14229 transitions. [2022-01-18 00:59:24,479 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14229 transitions. Word has length 137 [2022-01-18 00:59:24,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:59:24,479 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14229 transitions. [2022-01-18 00:59:24,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:24,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14229 transitions. [2022-01-18 00:59:24,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:59:24,484 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:59:24,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:59:24,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-01-18 00:59:24,484 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:59:24,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:59:24,484 INFO L85 PathProgramCache]: Analyzing trace with hash 505278923, now seen corresponding path program 126 times [2022-01-18 00:59:24,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:59:24,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329336995] [2022-01-18 00:59:24,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:59:24,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:59:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:59:24,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:59:24,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:59:24,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329336995] [2022-01-18 00:59:24,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329336995] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:59:24,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:59:24,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:59:24,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136295994] [2022-01-18 00:59:24,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:59:24,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:59:24,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:59:24,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:59:24,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:59:24,999 INFO L87 Difference]: Start difference. First operand 5410 states and 14229 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:30,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:59:30,120 INFO L93 Difference]: Finished difference Result 6734 states and 17707 transitions. [2022-01-18 00:59:30,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 00:59:30,121 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:59:30,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:59:30,129 INFO L225 Difference]: With dead ends: 6734 [2022-01-18 00:59:30,129 INFO L226 Difference]: Without dead ends: 6443 [2022-01-18 00:59:30,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 837 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1261, Invalid=3995, Unknown=0, NotChecked=0, Total=5256 [2022-01-18 00:59:30,130 INFO L933 BasicCegarLoop]: 514 mSDtfsCounter, 1039 mSDsluCounter, 9353 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 9673 SdHoareTripleChecker+Invalid, 2039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 00:59:30,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1039 Valid, 9673 Invalid, 2039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2036 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 00:59:30,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6443 states. [2022-01-18 00:59:30,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6443 to 5414. [2022-01-18 00:59:30,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.62996489931646) internal successors, (14236), 5413 states have internal predecessors, (14236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:30,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14236 transitions. [2022-01-18 00:59:30,188 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14236 transitions. Word has length 137 [2022-01-18 00:59:30,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:59:30,189 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14236 transitions. [2022-01-18 00:59:30,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:30,189 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14236 transitions. [2022-01-18 00:59:30,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:59:30,193 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:59:30,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:59:30,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-01-18 00:59:30,193 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:59:30,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:59:30,194 INFO L85 PathProgramCache]: Analyzing trace with hash 87097269, now seen corresponding path program 127 times [2022-01-18 00:59:30,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:59:30,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961517306] [2022-01-18 00:59:30,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:59:30,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:59:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:59:30,592 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 00:59:30,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:59:30,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961517306] [2022-01-18 00:59:30,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961517306] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:59:30,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:59:30,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:59:30,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536252454] [2022-01-18 00:59:30,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:59:30,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:59:30,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:59:30,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:59:30,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:59:30,593 INFO L87 Difference]: Start difference. First operand 5414 states and 14236 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:35,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:59:35,139 INFO L93 Difference]: Finished difference Result 6631 states and 17443 transitions. [2022-01-18 00:59:35,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 00:59:35,139 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:59:35,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:59:35,147 INFO L225 Difference]: With dead ends: 6631 [2022-01-18 00:59:35,147 INFO L226 Difference]: Without dead ends: 6374 [2022-01-18 00:59:35,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1068, Invalid=3092, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 00:59:35,148 INFO L933 BasicCegarLoop]: 501 mSDtfsCounter, 940 mSDsluCounter, 8673 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 9017 SdHoareTripleChecker+Invalid, 1899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:59:35,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [940 Valid, 9017 Invalid, 1899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:59:35,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6374 states. [2022-01-18 00:59:35,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6374 to 5418. [2022-01-18 00:59:35,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.6293151190695956) internal successors, (14243), 5417 states have internal predecessors, (14243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:35,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14243 transitions. [2022-01-18 00:59:35,201 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14243 transitions. Word has length 137 [2022-01-18 00:59:35,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:59:35,201 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14243 transitions. [2022-01-18 00:59:35,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:35,201 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14243 transitions. [2022-01-18 00:59:35,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:59:35,205 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:59:35,205 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:59:35,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-01-18 00:59:35,206 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:59:35,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:59:35,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1579918703, now seen corresponding path program 128 times [2022-01-18 00:59:35,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:59:35,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360895739] [2022-01-18 00:59:35,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:59:35,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:59:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:59:35,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:59:35,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:59:35,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360895739] [2022-01-18 00:59:35,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360895739] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:59:35,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:59:35,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:59:35,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499427866] [2022-01-18 00:59:35,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:59:35,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:59:35,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:59:35,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:59:35,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:59:35,727 INFO L87 Difference]: Start difference. First operand 5418 states and 14243 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:39,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:59:39,620 INFO L93 Difference]: Finished difference Result 6602 states and 17361 transitions. [2022-01-18 00:59:39,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 00:59:39,621 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:59:39,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:59:39,628 INFO L225 Difference]: With dead ends: 6602 [2022-01-18 00:59:39,628 INFO L226 Difference]: Without dead ends: 6326 [2022-01-18 00:59:39,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1029, Invalid=3261, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 00:59:39,629 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 1029 mSDsluCounter, 8588 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 8940 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:59:39,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1029 Valid, 8940 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1889 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:59:39,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6326 states. [2022-01-18 00:59:39,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6326 to 5402. [2022-01-18 00:59:39,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5401 states have (on average 2.6311794112201445) internal successors, (14211), 5401 states have internal predecessors, (14211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:39,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 14211 transitions. [2022-01-18 00:59:39,681 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 14211 transitions. Word has length 137 [2022-01-18 00:59:39,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:59:39,681 INFO L470 AbstractCegarLoop]: Abstraction has 5402 states and 14211 transitions. [2022-01-18 00:59:39,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:39,681 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 14211 transitions. [2022-01-18 00:59:39,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:59:39,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:59:39,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:59:39,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-01-18 00:59:39,686 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:59:39,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:59:39,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1560876107, now seen corresponding path program 129 times [2022-01-18 00:59:39,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:59:39,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609136262] [2022-01-18 00:59:39,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:59:39,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:59:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:59:40,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:59:40,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:59:40,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609136262] [2022-01-18 00:59:40,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609136262] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:59:40,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:59:40,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:59:40,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191882741] [2022-01-18 00:59:40,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:59:40,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:59:40,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:59:40,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:59:40,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:59:40,192 INFO L87 Difference]: Start difference. First operand 5402 states and 14211 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:47,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:59:47,377 INFO L93 Difference]: Finished difference Result 6998 states and 18387 transitions. [2022-01-18 00:59:47,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-01-18 00:59:47,377 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:59:47,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:59:47,385 INFO L225 Difference]: With dead ends: 6998 [2022-01-18 00:59:47,385 INFO L226 Difference]: Without dead ends: 6583 [2022-01-18 00:59:47,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1624 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=1926, Invalid=5906, Unknown=0, NotChecked=0, Total=7832 [2022-01-18 00:59:47,386 INFO L933 BasicCegarLoop]: 530 mSDtfsCounter, 1199 mSDsluCounter, 9121 mSDsCounter, 0 mSdLazyCounter, 2005 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 9442 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 00:59:47,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1199 Valid, 9442 Invalid, 2008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2005 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 00:59:47,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6583 states. [2022-01-18 00:59:47,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6583 to 5414. [2022-01-18 00:59:47,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.6292259375577314) internal successors, (14232), 5413 states have internal predecessors, (14232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:47,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14232 transitions. [2022-01-18 00:59:47,442 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14232 transitions. Word has length 137 [2022-01-18 00:59:47,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:59:47,442 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14232 transitions. [2022-01-18 00:59:47,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:47,442 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14232 transitions. [2022-01-18 00:59:47,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:59:47,446 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:59:47,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:59:47,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-01-18 00:59:47,447 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:59:47,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:59:47,447 INFO L85 PathProgramCache]: Analyzing trace with hash -339466381, now seen corresponding path program 130 times [2022-01-18 00:59:47,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:59:47,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792409536] [2022-01-18 00:59:47,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:59:47,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:59:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:59:47,910 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 00:59:47,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:59:47,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792409536] [2022-01-18 00:59:47,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792409536] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:59:47,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:59:47,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:59:47,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649337750] [2022-01-18 00:59:47,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:59:47,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:59:47,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:59:47,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:59:47,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:59:47,912 INFO L87 Difference]: Start difference. First operand 5414 states and 14232 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:53,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:59:53,744 INFO L93 Difference]: Finished difference Result 6847 states and 17991 transitions. [2022-01-18 00:59:53,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 00:59:53,744 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:59:53,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:59:53,753 INFO L225 Difference]: With dead ends: 6847 [2022-01-18 00:59:53,753 INFO L226 Difference]: Without dead ends: 6525 [2022-01-18 00:59:53,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1218 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1600, Invalid=5042, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 00:59:53,754 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 1135 mSDsluCounter, 8950 mSDsCounter, 0 mSdLazyCounter, 1967 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 9280 SdHoareTripleChecker+Invalid, 1970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:59:53,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1135 Valid, 9280 Invalid, 1970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1967 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:59:53,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6525 states. [2022-01-18 00:59:53,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6525 to 5418. [2022-01-18 00:59:53,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.6285767029721248) internal successors, (14239), 5417 states have internal predecessors, (14239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:53,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14239 transitions. [2022-01-18 00:59:53,809 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14239 transitions. Word has length 137 [2022-01-18 00:59:53,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:59:53,809 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14239 transitions. [2022-01-18 00:59:53,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:53,809 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14239 transitions. [2022-01-18 00:59:53,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:59:53,813 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:59:53,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:59:53,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-01-18 00:59:53,814 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:59:53,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:59:53,814 INFO L85 PathProgramCache]: Analyzing trace with hash -43863545, now seen corresponding path program 131 times [2022-01-18 00:59:53,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:59:53,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463361294] [2022-01-18 00:59:53,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:59:53,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:59:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:59:54,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:59:54,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:59:54,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463361294] [2022-01-18 00:59:54,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463361294] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:59:54,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:59:54,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:59:54,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861234022] [2022-01-18 00:59:54,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:59:54,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:59:54,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:59:54,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:59:54,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:59:54,326 INFO L87 Difference]: Start difference. First operand 5418 states and 14239 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:59,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:59:59,388 INFO L93 Difference]: Finished difference Result 6758 states and 17761 transitions. [2022-01-18 00:59:59,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 00:59:59,388 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 00:59:59,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:59:59,396 INFO L225 Difference]: With dead ends: 6758 [2022-01-18 00:59:59,396 INFO L226 Difference]: Without dead ends: 6467 [2022-01-18 00:59:59,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 933 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1287, Invalid=4115, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 00:59:59,397 INFO L933 BasicCegarLoop]: 514 mSDtfsCounter, 1110 mSDsluCounter, 9267 mSDsCounter, 0 mSdLazyCounter, 2026 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 9590 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 00:59:59,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1110 Valid, 9590 Invalid, 2029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2026 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 00:59:59,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6467 states. [2022-01-18 00:59:59,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6467 to 5422. [2022-01-18 00:59:59,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5422 states, 5421 states have (on average 2.6279284264895777) internal successors, (14246), 5421 states have internal predecessors, (14246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:59,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5422 states to 5422 states and 14246 transitions. [2022-01-18 00:59:59,473 INFO L78 Accepts]: Start accepts. Automaton has 5422 states and 14246 transitions. Word has length 137 [2022-01-18 00:59:59,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:59:59,474 INFO L470 AbstractCegarLoop]: Abstraction has 5422 states and 14246 transitions. [2022-01-18 00:59:59,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:59:59,474 INFO L276 IsEmpty]: Start isEmpty. Operand 5422 states and 14246 transitions. [2022-01-18 00:59:59,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 00:59:59,478 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:59:59,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:59:59,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-01-18 00:59:59,478 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 00:59:59,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:59:59,479 INFO L85 PathProgramCache]: Analyzing trace with hash -462045199, now seen corresponding path program 132 times [2022-01-18 00:59:59,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:59:59,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405053755] [2022-01-18 00:59:59,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:59:59,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:59:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:59:59,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:59:59,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:59:59,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405053755] [2022-01-18 00:59:59,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405053755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:59:59,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:59:59,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 00:59:59,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586317579] [2022-01-18 00:59:59,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:59:59,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 00:59:59,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:59:59,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 00:59:59,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 00:59:59,841 INFO L87 Difference]: Start difference. First operand 5422 states and 14246 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:03,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:00:03,689 INFO L93 Difference]: Finished difference Result 6639 states and 17453 transitions. [2022-01-18 01:00:03,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 01:00:03,689 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 01:00:03,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:00:03,698 INFO L225 Difference]: With dead ends: 6639 [2022-01-18 01:00:03,698 INFO L226 Difference]: Without dead ends: 6382 [2022-01-18 01:00:03,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=998, Invalid=2908, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 01:00:03,698 INFO L933 BasicCegarLoop]: 498 mSDtfsCounter, 963 mSDsluCounter, 9129 mSDsCounter, 0 mSdLazyCounter, 1967 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 9459 SdHoareTripleChecker+Invalid, 1970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 01:00:03,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [963 Valid, 9459 Invalid, 1970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1967 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 01:00:03,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6382 states. [2022-01-18 01:00:03,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6382 to 5426. [2022-01-18 01:00:03,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5426 states, 5425 states have (on average 2.6272811059907832) internal successors, (14253), 5425 states have internal predecessors, (14253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:03,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5426 states to 5426 states and 14253 transitions. [2022-01-18 01:00:03,756 INFO L78 Accepts]: Start accepts. Automaton has 5426 states and 14253 transitions. Word has length 137 [2022-01-18 01:00:03,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:00:03,756 INFO L470 AbstractCegarLoop]: Abstraction has 5426 states and 14253 transitions. [2022-01-18 01:00:03,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:03,756 INFO L276 IsEmpty]: Start isEmpty. Operand 5426 states and 14253 transitions. [2022-01-18 01:00:03,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 01:00:03,760 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:00:03,761 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:00:03,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-01-18 01:00:03,761 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:00:03,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:00:03,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1030776235, now seen corresponding path program 133 times [2022-01-18 01:00:03,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:00:03,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453105548] [2022-01-18 01:00:03,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:00:03,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:00:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:00:04,120 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 01:00:04,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:00:04,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453105548] [2022-01-18 01:00:04,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453105548] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:00:04,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:00:04,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 01:00:04,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018568838] [2022-01-18 01:00:04,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:00:04,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:00:04,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:00:04,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:00:04,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:00:04,122 INFO L87 Difference]: Start difference. First operand 5426 states and 14253 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:08,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:00:08,526 INFO L93 Difference]: Finished difference Result 6610 states and 17371 transitions. [2022-01-18 01:00:08,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 01:00:08,526 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 01:00:08,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:00:08,534 INFO L225 Difference]: With dead ends: 6610 [2022-01-18 01:00:08,534 INFO L226 Difference]: Without dead ends: 6314 [2022-01-18 01:00:08,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1022, Invalid=3268, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 01:00:08,535 INFO L933 BasicCegarLoop]: 506 mSDtfsCounter, 921 mSDsluCounter, 8223 mSDsCounter, 0 mSdLazyCounter, 1821 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 8580 SdHoareTripleChecker+Invalid, 1824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 01:00:08,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [921 Valid, 8580 Invalid, 1824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1821 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 01:00:08,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6314 states. [2022-01-18 01:00:08,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6314 to 5390. [2022-01-18 01:00:08,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5390 states, 5389 states have (on average 2.630914826498423) internal successors, (14178), 5389 states have internal predecessors, (14178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:08,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5390 states to 5390 states and 14178 transitions. [2022-01-18 01:00:08,589 INFO L78 Accepts]: Start accepts. Automaton has 5390 states and 14178 transitions. Word has length 137 [2022-01-18 01:00:08,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:00:08,589 INFO L470 AbstractCegarLoop]: Abstraction has 5390 states and 14178 transitions. [2022-01-18 01:00:08,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:08,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5390 states and 14178 transitions. [2022-01-18 01:00:08,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 01:00:08,594 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:00:08,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:00:08,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-01-18 01:00:08,594 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:00:08,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:00:08,594 INFO L85 PathProgramCache]: Analyzing trace with hash 208774069, now seen corresponding path program 134 times [2022-01-18 01:00:08,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:00:08,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609398621] [2022-01-18 01:00:08,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:00:08,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:00:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:00:09,038 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 01:00:09,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:00:09,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609398621] [2022-01-18 01:00:09,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609398621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:00:09,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:00:09,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 01:00:09,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850051426] [2022-01-18 01:00:09,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:00:09,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:00:09,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:00:09,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:00:09,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:00:09,040 INFO L87 Difference]: Start difference. First operand 5390 states and 14178 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:16,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:00:16,387 INFO L93 Difference]: Finished difference Result 7072 states and 18487 transitions. [2022-01-18 01:00:16,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 01:00:16,387 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 01:00:16,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:00:16,395 INFO L225 Difference]: With dead ends: 7072 [2022-01-18 01:00:16,395 INFO L226 Difference]: Without dead ends: 6626 [2022-01-18 01:00:16,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1816 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=2209, Invalid=6533, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 01:00:16,396 INFO L933 BasicCegarLoop]: 536 mSDtfsCounter, 1536 mSDsluCounter, 9110 mSDsCounter, 0 mSdLazyCounter, 1944 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 9430 SdHoareTripleChecker+Invalid, 1947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 01:00:16,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1536 Valid, 9430 Invalid, 1947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1944 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 01:00:16,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6626 states. [2022-01-18 01:00:16,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6626 to 5394. [2022-01-18 01:00:16,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5394 states, 5393 states have (on average 2.6302614500278136) internal successors, (14185), 5393 states have internal predecessors, (14185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:16,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5394 states to 5394 states and 14185 transitions. [2022-01-18 01:00:16,450 INFO L78 Accepts]: Start accepts. Automaton has 5394 states and 14185 transitions. Word has length 137 [2022-01-18 01:00:16,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:00:16,450 INFO L470 AbstractCegarLoop]: Abstraction has 5394 states and 14185 transitions. [2022-01-18 01:00:16,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:16,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5394 states and 14185 transitions. [2022-01-18 01:00:16,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 01:00:16,455 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:00:16,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:00:16,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-01-18 01:00:16,455 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:00:16,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:00:16,456 INFO L85 PathProgramCache]: Analyzing trace with hash 797634483, now seen corresponding path program 135 times [2022-01-18 01:00:16,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:00:16,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498784036] [2022-01-18 01:00:16,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:00:16,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:00:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:00:16,990 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 01:00:16,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:00:16,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498784036] [2022-01-18 01:00:16,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498784036] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:00:16,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:00:16,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 01:00:16,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613455427] [2022-01-18 01:00:16,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:00:16,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:00:16,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:00:16,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:00:16,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:00:16,991 INFO L87 Difference]: Start difference. First operand 5394 states and 14185 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:23,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:00:23,330 INFO L93 Difference]: Finished difference Result 6858 states and 17998 transitions. [2022-01-18 01:00:23,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 01:00:23,330 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 01:00:23,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:00:23,337 INFO L225 Difference]: With dead ends: 6858 [2022-01-18 01:00:23,337 INFO L226 Difference]: Without dead ends: 6443 [2022-01-18 01:00:23,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1615 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=1945, Invalid=6065, Unknown=0, NotChecked=0, Total=8010 [2022-01-18 01:00:23,338 INFO L933 BasicCegarLoop]: 531 mSDtfsCounter, 1246 mSDsluCounter, 9616 mSDsCounter, 0 mSdLazyCounter, 2076 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 9922 SdHoareTripleChecker+Invalid, 2079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 01:00:23,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1246 Valid, 9922 Invalid, 2079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2076 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 01:00:23,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6443 states. [2022-01-18 01:00:23,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6443 to 5406. [2022-01-18 01:00:23,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 5405 states have (on average 2.6283071230342276) internal successors, (14206), 5405 states have internal predecessors, (14206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:23,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 14206 transitions. [2022-01-18 01:00:23,389 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 14206 transitions. Word has length 137 [2022-01-18 01:00:23,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:00:23,389 INFO L470 AbstractCegarLoop]: Abstraction has 5406 states and 14206 transitions. [2022-01-18 01:00:23,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:23,389 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 14206 transitions. [2022-01-18 01:00:23,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 01:00:23,394 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:00:23,394 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:00:23,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-01-18 01:00:23,395 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:00:23,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:00:23,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1666006919, now seen corresponding path program 136 times [2022-01-18 01:00:23,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:00:23,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773935482] [2022-01-18 01:00:23,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:00:23,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:00:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:00:23,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:00:23,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:00:23,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773935482] [2022-01-18 01:00:23,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773935482] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:00:23,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:00:23,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 01:00:23,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153359030] [2022-01-18 01:00:23,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:00:23,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:00:23,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:00:23,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:00:23,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:00:23,741 INFO L87 Difference]: Start difference. First operand 5406 states and 14206 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:28,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:00:28,499 INFO L93 Difference]: Finished difference Result 6711 states and 17613 transitions. [2022-01-18 01:00:28,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 01:00:28,499 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 01:00:28,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:00:28,508 INFO L225 Difference]: With dead ends: 6711 [2022-01-18 01:00:28,508 INFO L226 Difference]: Without dead ends: 6389 [2022-01-18 01:00:28,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1226 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1584, Invalid=5058, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 01:00:28,509 INFO L933 BasicCegarLoop]: 521 mSDtfsCounter, 1105 mSDsluCounter, 8968 mSDsCounter, 0 mSdLazyCounter, 1940 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 9296 SdHoareTripleChecker+Invalid, 1943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 01:00:28,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1105 Valid, 9296 Invalid, 1943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1940 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 01:00:28,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6389 states. [2022-01-18 01:00:28,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6389 to 5410. [2022-01-18 01:00:28,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.6276576076908857) internal successors, (14213), 5409 states have internal predecessors, (14213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:28,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14213 transitions. [2022-01-18 01:00:28,572 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14213 transitions. Word has length 137 [2022-01-18 01:00:28,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:00:28,572 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14213 transitions. [2022-01-18 01:00:28,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:28,572 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14213 transitions. [2022-01-18 01:00:28,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 01:00:28,577 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:00:28,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:00:28,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-01-18 01:00:28,577 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:00:28,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:00:28,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1370404083, now seen corresponding path program 137 times [2022-01-18 01:00:28,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:00:28,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388037585] [2022-01-18 01:00:28,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:00:28,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:00:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:00:29,060 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 01:00:29,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:00:29,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388037585] [2022-01-18 01:00:29,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388037585] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:00:29,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:00:29,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 01:00:29,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600276268] [2022-01-18 01:00:29,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:00:29,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:00:29,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:00:29,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:00:29,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:00:29,062 INFO L87 Difference]: Start difference. First operand 5410 states and 14213 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:33,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:00:33,844 INFO L93 Difference]: Finished difference Result 6626 states and 17394 transitions. [2022-01-18 01:00:33,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 01:00:33,844 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 01:00:33,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:00:33,851 INFO L225 Difference]: With dead ends: 6626 [2022-01-18 01:00:33,851 INFO L226 Difference]: Without dead ends: 6335 [2022-01-18 01:00:33,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1275, Invalid=4127, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 01:00:33,851 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 1023 mSDsluCounter, 9308 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 9628 SdHoareTripleChecker+Invalid, 1991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 01:00:33,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1023 Valid, 9628 Invalid, 1991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1988 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 01:00:33,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6335 states. [2022-01-18 01:00:33,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6335 to 5414. [2022-01-18 01:00:33,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.6270090522815446) internal successors, (14220), 5413 states have internal predecessors, (14220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:33,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14220 transitions. [2022-01-18 01:00:33,902 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14220 transitions. Word has length 137 [2022-01-18 01:00:33,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:00:33,902 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14220 transitions. [2022-01-18 01:00:33,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:33,902 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14220 transitions. [2022-01-18 01:00:33,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 01:00:33,907 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:00:33,907 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:00:33,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-01-18 01:00:33,907 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:00:33,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:00:33,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1788585737, now seen corresponding path program 138 times [2022-01-18 01:00:33,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:00:33,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846183430] [2022-01-18 01:00:33,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:00:33,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:00:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:00:34,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:00:34,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:00:34,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846183430] [2022-01-18 01:00:34,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846183430] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:00:34,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:00:34,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 01:00:34,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65560905] [2022-01-18 01:00:34,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:00:34,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:00:34,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:00:34,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:00:34,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:00:34,313 INFO L87 Difference]: Start difference. First operand 5414 states and 14220 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:37,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:00:37,657 INFO L93 Difference]: Finished difference Result 6495 states and 17061 transitions. [2022-01-18 01:00:37,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 01:00:37,657 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 01:00:37,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:00:37,667 INFO L225 Difference]: With dead ends: 6495 [2022-01-18 01:00:37,667 INFO L226 Difference]: Without dead ends: 6238 [2022-01-18 01:00:37,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=962, Invalid=2820, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 01:00:37,668 INFO L933 BasicCegarLoop]: 497 mSDtfsCounter, 970 mSDsluCounter, 8625 mSDsCounter, 0 mSdLazyCounter, 1840 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 8968 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 01:00:37,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [970 Valid, 8968 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1840 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 01:00:37,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6238 states. [2022-01-18 01:00:37,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6238 to 5418. [2022-01-18 01:00:37,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.626361454679712) internal successors, (14227), 5417 states have internal predecessors, (14227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:37,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14227 transitions. [2022-01-18 01:00:37,742 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14227 transitions. Word has length 137 [2022-01-18 01:00:37,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:00:37,742 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14227 transitions. [2022-01-18 01:00:37,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:37,742 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14227 transitions. [2022-01-18 01:00:37,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 01:00:37,748 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:00:37,748 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:00:37,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-01-18 01:00:37,748 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:00:37,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:00:37,748 INFO L85 PathProgramCache]: Analyzing trace with hash -295764303, now seen corresponding path program 139 times [2022-01-18 01:00:37,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:00:37,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057354969] [2022-01-18 01:00:37,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:00:37,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:00:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:00:38,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:00:38,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:00:38,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057354969] [2022-01-18 01:00:38,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057354969] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:00:38,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:00:38,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 01:00:38,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954883666] [2022-01-18 01:00:38,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:00:38,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:00:38,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:00:38,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:00:38,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:00:38,092 INFO L87 Difference]: Start difference. First operand 5418 states and 14227 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:41,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:00:41,755 INFO L93 Difference]: Finished difference Result 6434 states and 16895 transitions. [2022-01-18 01:00:41,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 01:00:41,756 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 01:00:41,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:00:41,763 INFO L225 Difference]: With dead ends: 6434 [2022-01-18 01:00:41,764 INFO L226 Difference]: Without dead ends: 6086 [2022-01-18 01:00:41,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1014, Invalid=3276, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 01:00:41,764 INFO L933 BasicCegarLoop]: 497 mSDtfsCounter, 977 mSDsluCounter, 9161 mSDsCounter, 0 mSdLazyCounter, 1938 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 9483 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 01:00:41,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 9483 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1938 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 01:00:41,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6086 states. [2022-01-18 01:00:41,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6086 to 5330. [2022-01-18 01:00:41,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5330 states, 5329 states have (on average 2.640082567085757) internal successors, (14069), 5329 states have internal predecessors, (14069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:41,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 14069 transitions. [2022-01-18 01:00:41,834 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 14069 transitions. Word has length 137 [2022-01-18 01:00:41,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:00:41,834 INFO L470 AbstractCegarLoop]: Abstraction has 5330 states and 14069 transitions. [2022-01-18 01:00:41,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:41,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 14069 transitions. [2022-01-18 01:00:41,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 01:00:41,840 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:00:41,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:00:41,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-01-18 01:00:41,841 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:00:41,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:00:41,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1431101441, now seen corresponding path program 140 times [2022-01-18 01:00:41,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:00:41,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637444614] [2022-01-18 01:00:41,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:00:41,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:00:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:00:42,332 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 01:00:42,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:00:42,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637444614] [2022-01-18 01:00:42,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637444614] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:00:42,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:00:42,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 01:00:42,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953782538] [2022-01-18 01:00:42,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:00:42,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:00:42,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:00:42,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:00:42,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:00:42,333 INFO L87 Difference]: Start difference. First operand 5330 states and 14069 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:48,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:00:48,425 INFO L93 Difference]: Finished difference Result 7946 states and 20843 transitions. [2022-01-18 01:00:48,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-18 01:00:48,426 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 01:00:48,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:00:48,445 INFO L225 Difference]: With dead ends: 7946 [2022-01-18 01:00:48,445 INFO L226 Difference]: Without dead ends: 7097 [2022-01-18 01:00:48,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2113 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=2425, Invalid=7081, Unknown=0, NotChecked=0, Total=9506 [2022-01-18 01:00:48,447 INFO L933 BasicCegarLoop]: 574 mSDtfsCounter, 1558 mSDsluCounter, 9505 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 9853 SdHoareTripleChecker+Invalid, 2083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 01:00:48,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1558 Valid, 9853 Invalid, 2083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2080 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 01:00:48,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7097 states. [2022-01-18 01:00:48,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7097 to 5438. [2022-01-18 01:00:48,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5437 states have (on average 2.632701857642082) internal successors, (14314), 5437 states have internal predecessors, (14314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:48,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 14314 transitions. [2022-01-18 01:00:48,503 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 14314 transitions. Word has length 137 [2022-01-18 01:00:48,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:00:48,503 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 14314 transitions. [2022-01-18 01:00:48,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:48,503 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 14314 transitions. [2022-01-18 01:00:48,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 01:00:48,508 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:00:48,508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:00:48,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-01-18 01:00:48,508 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:00:48,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:00:48,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1161906797, now seen corresponding path program 141 times [2022-01-18 01:00:48,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:00:48,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170779854] [2022-01-18 01:00:48,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:00:48,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:00:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:00:48,970 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 01:00:48,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:00:48,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170779854] [2022-01-18 01:00:48,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170779854] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:00:48,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:00:48,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 01:00:48,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318894119] [2022-01-18 01:00:48,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:00:48,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:00:48,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:00:48,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:00:48,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:00:48,971 INFO L87 Difference]: Start difference. First operand 5438 states and 14314 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:54,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:00:54,908 INFO L93 Difference]: Finished difference Result 7624 states and 19985 transitions. [2022-01-18 01:00:54,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 01:00:54,908 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 01:00:54,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:00:54,916 INFO L225 Difference]: With dead ends: 7624 [2022-01-18 01:00:54,916 INFO L226 Difference]: Without dead ends: 7178 [2022-01-18 01:00:54,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1922 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=2151, Invalid=6591, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 01:00:54,916 INFO L933 BasicCegarLoop]: 558 mSDtfsCounter, 1575 mSDsluCounter, 9411 mSDsCounter, 0 mSdLazyCounter, 2037 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 9751 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 01:00:54,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1575 Valid, 9751 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2037 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 01:00:54,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7178 states. [2022-01-18 01:00:54,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7178 to 5442. [2022-01-18 01:00:54,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5442 states, 5441 states have (on average 2.632052931446425) internal successors, (14321), 5441 states have internal predecessors, (14321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:54,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 14321 transitions. [2022-01-18 01:00:54,971 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 14321 transitions. Word has length 137 [2022-01-18 01:00:54,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:00:54,971 INFO L470 AbstractCegarLoop]: Abstraction has 5442 states and 14321 transitions. [2022-01-18 01:00:54,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:00:54,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 14321 transitions. [2022-01-18 01:00:54,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 01:00:54,976 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:00:54,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:00:54,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-01-18 01:00:54,976 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:00:54,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:00:54,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1750767211, now seen corresponding path program 142 times [2022-01-18 01:00:54,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:00:54,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693742170] [2022-01-18 01:00:54,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:00:54,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:00:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:00:55,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:00:55,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:00:55,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693742170] [2022-01-18 01:00:55,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693742170] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:00:55,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:00:55,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 01:00:55,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429826817] [2022-01-18 01:00:55,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:00:55,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:00:55,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:00:55,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:00:55,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:00:55,532 INFO L87 Difference]: Start difference. First operand 5442 states and 14321 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:01,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:01:01,413 INFO L93 Difference]: Finished difference Result 7398 states and 19467 transitions. [2022-01-18 01:01:01,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 01:01:01,414 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 01:01:01,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:01:01,423 INFO L225 Difference]: With dead ends: 7398 [2022-01-18 01:01:01,423 INFO L226 Difference]: Without dead ends: 6983 [2022-01-18 01:01:01,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1642 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1891, Invalid=6119, Unknown=0, NotChecked=0, Total=8010 [2022-01-18 01:01:01,425 INFO L933 BasicCegarLoop]: 550 mSDtfsCounter, 1244 mSDsluCounter, 10086 mSDsCounter, 0 mSdLazyCounter, 2185 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 10406 SdHoareTripleChecker+Invalid, 2188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 01:01:01,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1244 Valid, 10406 Invalid, 2188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2185 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 01:01:01,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6983 states. [2022-01-18 01:01:01,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6983 to 5454. [2022-01-18 01:01:01,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 5453 states have (on average 2.6301118650284248) internal successors, (14342), 5453 states have internal predecessors, (14342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:01,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 14342 transitions. [2022-01-18 01:01:01,492 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 14342 transitions. Word has length 137 [2022-01-18 01:01:01,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:01:01,492 INFO L470 AbstractCegarLoop]: Abstraction has 5454 states and 14342 transitions. [2022-01-18 01:01:01,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:01,492 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 14342 transitions. [2022-01-18 01:01:01,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 01:01:01,497 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:01:01,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:01:01,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-01-18 01:01:01,497 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:01:01,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:01:01,498 INFO L85 PathProgramCache]: Analyzing trace with hash -712874191, now seen corresponding path program 143 times [2022-01-18 01:01:01,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:01:01,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088454290] [2022-01-18 01:01:01,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:01:01,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:01:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:01:02,021 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 01:01:02,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:01:02,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088454290] [2022-01-18 01:01:02,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088454290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:01:02,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:01:02,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 01:01:02,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149367461] [2022-01-18 01:01:02,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:01:02,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:01:02,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:01:02,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:01:02,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:01:02,022 INFO L87 Difference]: Start difference. First operand 5454 states and 14342 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:07,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:01:07,248 INFO L93 Difference]: Finished difference Result 7247 states and 19071 transitions. [2022-01-18 01:01:07,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 01:01:07,249 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 01:01:07,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:01:07,257 INFO L225 Difference]: With dead ends: 7247 [2022-01-18 01:01:07,257 INFO L226 Difference]: Without dead ends: 6925 [2022-01-18 01:01:07,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1247 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1542, Invalid=5100, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 01:01:07,257 INFO L933 BasicCegarLoop]: 540 mSDtfsCounter, 1119 mSDsluCounter, 10049 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 10370 SdHoareTripleChecker+Invalid, 2162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 01:01:07,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1119 Valid, 10370 Invalid, 2162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 01:01:07,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6925 states. [2022-01-18 01:01:07,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6925 to 5458. [2022-01-18 01:01:07,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.6294667399670146) internal successors, (14349), 5457 states have internal predecessors, (14349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:07,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14349 transitions. [2022-01-18 01:01:07,327 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14349 transitions. Word has length 137 [2022-01-18 01:01:07,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:01:07,328 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14349 transitions. [2022-01-18 01:01:07,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:07,328 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14349 transitions. [2022-01-18 01:01:07,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 01:01:07,333 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:01:07,334 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:01:07,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-01-18 01:01:07,334 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:01:07,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:01:07,334 INFO L85 PathProgramCache]: Analyzing trace with hash -417271355, now seen corresponding path program 144 times [2022-01-18 01:01:07,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:01:07,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746193706] [2022-01-18 01:01:07,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:01:07,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:01:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:01:07,677 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 01:01:07,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:01:07,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746193706] [2022-01-18 01:01:07,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746193706] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:01:07,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:01:07,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 01:01:07,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693766399] [2022-01-18 01:01:07,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:01:07,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:01:07,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:01:07,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:01:07,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:01:07,679 INFO L87 Difference]: Start difference. First operand 5458 states and 14349 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:11,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:01:11,500 INFO L93 Difference]: Finished difference Result 7158 states and 18841 transitions. [2022-01-18 01:01:11,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 01:01:11,506 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 01:01:11,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:01:11,516 INFO L225 Difference]: With dead ends: 7158 [2022-01-18 01:01:11,516 INFO L226 Difference]: Without dead ends: 6867 [2022-01-18 01:01:11,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 951 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1247, Invalid=4155, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 01:01:11,517 INFO L933 BasicCegarLoop]: 531 mSDtfsCounter, 1219 mSDsluCounter, 8879 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 9239 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 01:01:11,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1219 Valid, 9239 Invalid, 1936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 01:01:11,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6867 states. [2022-01-18 01:01:11,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6867 to 5462. [2022-01-18 01:01:11,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.6288225599707014) internal successors, (14356), 5461 states have internal predecessors, (14356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:11,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14356 transitions. [2022-01-18 01:01:11,576 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14356 transitions. Word has length 137 [2022-01-18 01:01:11,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:01:11,576 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14356 transitions. [2022-01-18 01:01:11,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:11,577 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14356 transitions. [2022-01-18 01:01:11,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 01:01:11,581 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:01:11,581 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] [2022-01-18 01:01:11,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-01-18 01:01:11,582 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:01:11,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:01:11,582 INFO L85 PathProgramCache]: Analyzing trace with hash -835453009, now seen corresponding path program 145 times [2022-01-18 01:01:11,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:01:11,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287337717] [2022-01-18 01:01:11,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:01:11,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:01:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:01:12,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:01:12,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:01:12,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287337717] [2022-01-18 01:01:12,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287337717] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:01:12,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:01:12,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 01:01:12,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735380532] [2022-01-18 01:01:12,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:01:12,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:01:12,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:01:12,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:01:12,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:01:12,222 INFO L87 Difference]: Start difference. First operand 5462 states and 14356 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:16,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:01:16,429 INFO L93 Difference]: Finished difference Result 7015 states and 18475 transitions. [2022-01-18 01:01:16,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 01:01:16,429 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 01:01:16,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:01:16,438 INFO L225 Difference]: With dead ends: 7015 [2022-01-18 01:01:16,438 INFO L226 Difference]: Without dead ends: 6758 [2022-01-18 01:01:16,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=959, Invalid=2823, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 01:01:16,439 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 984 mSDsluCounter, 7918 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 8302 SdHoareTripleChecker+Invalid, 1740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 01:01:16,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [984 Valid, 8302 Invalid, 1740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 01:01:16,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6758 states. [2022-01-18 01:01:16,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6758 to 5466. [2022-01-18 01:01:16,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.628179322964318) internal successors, (14363), 5465 states have internal predecessors, (14363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:16,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14363 transitions. [2022-01-18 01:01:16,517 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14363 transitions. Word has length 137 [2022-01-18 01:01:16,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:01:16,517 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14363 transitions. [2022-01-18 01:01:16,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:16,518 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14363 transitions. [2022-01-18 01:01:16,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 01:01:16,522 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:01:16,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:01:16,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-01-18 01:01:16,522 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:01:16,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:01:16,523 INFO L85 PathProgramCache]: Analyzing trace with hash 657368425, now seen corresponding path program 146 times [2022-01-18 01:01:16,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:01:16,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770657444] [2022-01-18 01:01:16,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:01:16,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:01:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:01:17,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:01:17,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:01:17,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770657444] [2022-01-18 01:01:17,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770657444] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:01:17,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:01:17,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 01:01:17,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965756870] [2022-01-18 01:01:17,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:01:17,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:01:17,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:01:17,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:01:17,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:01:17,076 INFO L87 Difference]: Start difference. First operand 5466 states and 14363 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:20,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:01:20,549 INFO L93 Difference]: Finished difference Result 6986 states and 18393 transitions. [2022-01-18 01:01:20,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 01:01:20,549 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 01:01:20,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:01:20,558 INFO L225 Difference]: With dead ends: 6986 [2022-01-18 01:01:20,558 INFO L226 Difference]: Without dead ends: 6646 [2022-01-18 01:01:20,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=997, Invalid=3293, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 01:01:20,559 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 1019 mSDsluCounter, 9058 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 9416 SdHoareTripleChecker+Invalid, 1974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 01:01:20,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1019 Valid, 9416 Invalid, 1974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 01:01:20,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6646 states. [2022-01-18 01:01:20,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6646 to 5386. [2022-01-18 01:01:20,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5386 states, 5385 states have (on average 2.631569173630455) internal successors, (14171), 5385 states have internal predecessors, (14171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:20,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5386 states to 5386 states and 14171 transitions. [2022-01-18 01:01:20,615 INFO L78 Accepts]: Start accepts. Automaton has 5386 states and 14171 transitions. Word has length 137 [2022-01-18 01:01:20,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:01:20,615 INFO L470 AbstractCegarLoop]: Abstraction has 5386 states and 14171 transitions. [2022-01-18 01:01:20,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:20,615 INFO L276 IsEmpty]: Start isEmpty. Operand 5386 states and 14171 transitions. [2022-01-18 01:01:20,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 01:01:20,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:01:20,620 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:01:20,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-01-18 01:01:20,620 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:01:20,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:01:20,620 INFO L85 PathProgramCache]: Analyzing trace with hash -701099389, now seen corresponding path program 147 times [2022-01-18 01:01:20,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:01:20,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793167152] [2022-01-18 01:01:20,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:01:20,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:01:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:01:21,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:01:21,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:01:21,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793167152] [2022-01-18 01:01:21,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793167152] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:01:21,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:01:21,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 01:01:21,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384817920] [2022-01-18 01:01:21,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:01:21,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:01:21,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:01:21,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:01:21,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:01:21,023 INFO L87 Difference]: Start difference. First operand 5386 states and 14171 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:29,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:01:29,385 INFO L93 Difference]: Finished difference Result 7035 states and 18520 transitions. [2022-01-18 01:01:29,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 01:01:29,385 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 01:01:29,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:01:29,392 INFO L225 Difference]: With dead ends: 7035 [2022-01-18 01:01:29,393 INFO L226 Difference]: Without dead ends: 6713 [2022-01-18 01:01:29,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1244 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=1547, Invalid=4933, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 01:01:29,393 INFO L933 BasicCegarLoop]: 527 mSDtfsCounter, 1097 mSDsluCounter, 8538 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 8886 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 01:01:29,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1097 Valid, 8886 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1875 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 01:01:29,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6713 states. [2022-01-18 01:01:29,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6713 to 5410. [2022-01-18 01:01:29,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.6313551488260307) internal successors, (14233), 5409 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:29,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14233 transitions. [2022-01-18 01:01:29,445 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14233 transitions. Word has length 137 [2022-01-18 01:01:29,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:01:29,445 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14233 transitions. [2022-01-18 01:01:29,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:29,445 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14233 transitions. [2022-01-18 01:01:29,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 01:01:29,449 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:01:29,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:01:29,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-01-18 01:01:29,450 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:01:29,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:01:29,450 INFO L85 PathProgramCache]: Analyzing trace with hash -405496553, now seen corresponding path program 148 times [2022-01-18 01:01:29,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:01:29,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821131872] [2022-01-18 01:01:29,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:01:29,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:01:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:01:29,886 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 01:01:29,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:01:29,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821131872] [2022-01-18 01:01:29,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821131872] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:01:29,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:01:29,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 01:01:29,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891514166] [2022-01-18 01:01:29,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:01:29,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:01:29,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:01:29,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:01:29,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:01:29,887 INFO L87 Difference]: Start difference. First operand 5410 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:34,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:01:34,455 INFO L93 Difference]: Finished difference Result 6978 states and 18378 transitions. [2022-01-18 01:01:34,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 01:01:34,455 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-01-18 01:01:34,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:01:34,465 INFO L225 Difference]: With dead ends: 6978 [2022-01-18 01:01:34,465 INFO L226 Difference]: Without dead ends: 6687 [2022-01-18 01:01:34,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 936 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1277, Invalid=4125, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 01:01:34,466 INFO L933 BasicCegarLoop]: 521 mSDtfsCounter, 1098 mSDsluCounter, 7999 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 8372 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 01:01:34,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1098 Valid, 8372 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 01:01:34,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6687 states. [2022-01-18 01:01:34,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6687 to 5414. [2022-01-18 01:01:34,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.6307038610751894) internal successors, (14240), 5413 states have internal predecessors, (14240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:34,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14240 transitions. [2022-01-18 01:01:34,544 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14240 transitions. Word has length 137 [2022-01-18 01:01:34,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:01:34,544 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14240 transitions. [2022-01-18 01:01:34,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:01:34,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14240 transitions. [2022-01-18 01:01:34,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-01-18 01:01:34,550 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:01:34,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 01:01:34,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-01-18 01:01:34,550 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 01:01:34,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:01:34,550 INFO L85 PathProgramCache]: Analyzing trace with hash -823678207, now seen corresponding path program 149 times [2022-01-18 01:01:34,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:01:34,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187826822] [2022-01-18 01:01:34,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:01:34,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:01:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:01:34,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:01:34,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:01:34,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187826822] [2022-01-18 01:01:34,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187826822] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:01:34,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:01:34,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-18 01:01:34,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944319082] [2022-01-18 01:01:34,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:01:34,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 01:01:34,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:01:34,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 01:01:34,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:01:34,939 INFO L87 Difference]: Start difference. First operand 5414 states and 14240 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 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 01:01:38,155 WARN L244 SmtUtils]: Removed 39 from assertion stack [2022-01-18 01:01:38,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 01:01:38,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=711, Invalid=1941, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 01:01:38,156 INFO L933 BasicCegarLoop]: 479 mSDtfsCounter, 795 mSDsluCounter, 8118 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 8482 SdHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 01:01:38,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [795 Valid, 8482 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 01:01:38,157 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 01:01:38,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-01-18 01:01:38,157 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (5414states) and FLOYD_HOARE automaton (currently 30 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 95 for 15ms.. [2022-01-18 01:01:38,158 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-18 01:01:38,159 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-18 01:01:38,161 INFO L732 BasicCegarLoop]: Path program histogram: [149, 35, 35, 3, 2, 1, 1, 1] [2022-01-18 01:01:38,162 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 01:01:38,162 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 01:01:38,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 01:01:38 BasicIcfg [2022-01-18 01:01:38,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 01:01:38,164 INFO L158 Benchmark]: Toolchain (without parser) took 866810.43ms. Allocated memory was 354.4MB in the beginning and 2.9GB in the end (delta: 2.5GB). Free memory was 299.8MB in the beginning and 1.1GB in the end (delta: -808.4MB). Peak memory consumption was 1.7GB. Max. memory is 16.0GB. [2022-01-18 01:01:38,164 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 354.4MB. Free memory is still 315.7MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 01:01:38,164 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.45ms. Allocated memory was 354.4MB in the beginning and 425.7MB in the end (delta: 71.3MB). Free memory was 299.6MB in the beginning and 397.6MB in the end (delta: -98.0MB). Peak memory consumption was 8.3MB. Max. memory is 16.0GB. [2022-01-18 01:01:38,164 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.41ms. Allocated memory is still 425.7MB. Free memory was 397.6MB in the beginning and 395.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 01:01:38,164 INFO L158 Benchmark]: Boogie Preprocessor took 16.61ms. Allocated memory is still 425.7MB. Free memory was 395.5MB in the beginning and 394.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 01:01:38,164 INFO L158 Benchmark]: RCFGBuilder took 366.34ms. Allocated memory is still 425.7MB. Free memory was 394.4MB in the beginning and 376.6MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2022-01-18 01:01:38,164 INFO L158 Benchmark]: TraceAbstraction took 866165.97ms. Allocated memory was 425.7MB in the beginning and 2.9GB in the end (delta: 2.4GB). Free memory was 376.6MB in the beginning and 1.1GB in the end (delta: -731.6MB). Peak memory consumption was 1.7GB. Max. memory is 16.0GB. [2022-01-18 01:01:38,164 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 354.4MB. Free memory is still 315.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 209.45ms. Allocated memory was 354.4MB in the beginning and 425.7MB in the end (delta: 71.3MB). Free memory was 299.6MB in the beginning and 397.6MB in the end (delta: -98.0MB). Peak memory consumption was 8.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 27.41ms. Allocated memory is still 425.7MB. Free memory was 397.6MB in the beginning and 395.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 16.61ms. Allocated memory is still 425.7MB. Free memory was 395.5MB in the beginning and 394.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 366.34ms. Allocated memory is still 425.7MB. Free memory was 394.4MB in the beginning and 376.6MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 866165.97ms. Allocated memory was 425.7MB in the beginning and 2.9GB in the end (delta: 2.4GB). Free memory was 376.6MB in the beginning and 1.1GB in the end (delta: -731.6MB). Peak memory consumption was 1.7GB. 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: 72]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (5414states) and FLOYD_HOARE automaton (currently 30 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 95 for 15ms.. - TimeoutResultAtElement [Line: 64]: 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 (5414states) and FLOYD_HOARE automaton (currently 30 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 95 for 15ms.. - TimeoutResultAtElement [Line: 65]: 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 (5414states) and FLOYD_HOARE automaton (currently 30 states, 28 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 95 for 15ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 246 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 866.0s, OverallIterations: 227, TraceHistogramMax: 1, PathProgramHistogramMax: 149, EmptinessCheckTime: 1.5s, AutomataDifference: 766.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 182732 SdHoareTripleChecker+Valid, 117.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 182732 mSDsluCounter, 1504337 SdHoareTripleChecker+Invalid, 100.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1435768 mSDsCounter, 526 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 300248 IncrementalHoareTripleChecker+Invalid, 300774 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 526 mSolverCounterUnsat, 98228 mSDtfsCounter, 300248 mSolverCounterSat, 1.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13957 GetRequests, 1162 SyntacticMatches, 0 SemanticMatches, 12794 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164749 ImplicationChecksByTransitivity, 677.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7151occurred in iteration=0, InterpolantAutomatonStates: 9591, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 17.0s AutomataMinimizationTime, 226 MinimizatonAttempts, 209250 StatesRemovedByMinimization, 225 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 76.9s InterpolantComputationTime, 27525 NumberOfCodeBlocks, 27525 NumberOfCodeBlocksAsserted, 227 NumberOfCheckSat, 27298 ConstructedInterpolants, 0 QuantifiedInterpolants, 321448 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 227 InterpolantComputations, 227 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