/usr/bin/java -Xmx8000000000 -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/test-easy10.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 16:19:43,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 16:19:43,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 16:19:43,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-01 16:19:43,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-01 16:19:43,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-01 16:19:43,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-01 16:19:43,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-01 16:19:43,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-01 16:19:43,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-01 16:19:43,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-01 16:19:43,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-01 16:19:43,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-01 16:19:43,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-01 16:19:43,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-01 16:19:43,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-01 16:19:43,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-01 16:19:43,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-01 16:19:43,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-01 16:19:43,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-01 16:19:43,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-01 16:19:43,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-01 16:19:43,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-01 16:19:43,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-01 16:19:43,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-01 16:19:43,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-01 16:19:43,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-01 16:19:43,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-01 16:19:43,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-01 16:19:43,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-01 16:19:43,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-01 16:19:43,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-01 16:19:43,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-01 16:19:43,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-01 16:19:43,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-01 16:19:43,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-01 16:19:43,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-01 16:19:43,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-01 16:19:43,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 16:19:43,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 16:19:43,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 16:19:43,304 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 [2022-03-01 16:19:43,327 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 16:19:43,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 16:19:43,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 16:19:43,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 16:19:43,328 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 16:19:43,328 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 16:19:43,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 16:19:43,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 16:19:43,329 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 16:19:43,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 16:19:43,329 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 16:19:43,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 16:19:43,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 16:19:43,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 16:19:43,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 16:19:43,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 16:19:43,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 16:19:43,330 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 16:19:43,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 16:19:43,330 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 16:19:43,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 16:19:43,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 16:19:43,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 16:19:43,330 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 16:19:43,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 16:19:43,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 16:19:43,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 16:19:43,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 16:19:43,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 16:19:43,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 16:19:43,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 16:19:43,332 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 16:19:43,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 16:19:43,332 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 16:19:43,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 16:19:43,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 16:19:43,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 16:19:43,529 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 16:19:43,530 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 16:19:43,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy10.wvr.c [2022-03-01 16:19:43,609 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc662f9c6/273d0b31850749fc81b8dd71359852d0/FLAGa85af13b1 [2022-03-01 16:19:43,962 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 16:19:43,962 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy10.wvr.c [2022-03-01 16:19:43,967 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc662f9c6/273d0b31850749fc81b8dd71359852d0/FLAGa85af13b1 [2022-03-01 16:19:43,977 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc662f9c6/273d0b31850749fc81b8dd71359852d0 [2022-03-01 16:19:43,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 16:19:43,980 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 16:19:43,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 16:19:43,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 16:19:43,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 16:19:43,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 04:19:43" (1/1) ... [2022-03-01 16:19:43,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6692fcff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:19:43, skipping insertion in model container [2022-03-01 16:19:43,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 04:19:43" (1/1) ... [2022-03-01 16:19:43,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 16:19:44,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 16:19:44,212 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/test-easy10.wvr.c[3907,3920] [2022-03-01 16:19:44,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 16:19:44,240 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 16:19:44,269 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/test-easy10.wvr.c[3907,3920] [2022-03-01 16:19:44,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 16:19:44,278 INFO L208 MainTranslator]: Completed translation [2022-03-01 16:19:44,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:19:44 WrapperNode [2022-03-01 16:19:44,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 16:19:44,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 16:19:44,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 16:19:44,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 16:19:44,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:19:44" (1/1) ... [2022-03-01 16:19:44,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:19:44" (1/1) ... [2022-03-01 16:19:44,317 INFO L137 Inliner]: procedures = 23, calls = 84, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 188 [2022-03-01 16:19:44,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 16:19:44,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 16:19:44,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 16:19:44,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 16:19:44,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:19:44" (1/1) ... [2022-03-01 16:19:44,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:19:44" (1/1) ... [2022-03-01 16:19:44,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:19:44" (1/1) ... [2022-03-01 16:19:44,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:19:44" (1/1) ... [2022-03-01 16:19:44,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:19:44" (1/1) ... [2022-03-01 16:19:44,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:19:44" (1/1) ... [2022-03-01 16:19:44,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:19:44" (1/1) ... [2022-03-01 16:19:44,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 16:19:44,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 16:19:44,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 16:19:44,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 16:19:44,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:19:44" (1/1) ... [2022-03-01 16:19:44,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 16:19:44,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 16:19:44,379 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) [2022-03-01 16:19:44,381 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 [2022-03-01 16:19:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 16:19:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 16:19:44,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 16:19:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 16:19:44,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 16:19:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-01 16:19:44,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-01 16:19:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-01 16:19:44,421 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-01 16:19:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 16:19:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 16:19:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 16:19:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-01 16:19:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-01 16:19:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 16:19:44,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 16:19:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-01 16:19:44,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 16:19:44,424 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 16:19:44,517 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 16:19:44,518 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 16:19:44,687 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 16:19:44,717 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 16:19:44,717 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-01 16:19:44,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 04:19:44 BoogieIcfgContainer [2022-03-01 16:19:44,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 16:19:44,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 16:19:44,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 16:19:44,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 16:19:44,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 04:19:43" (1/3) ... [2022-03-01 16:19:44,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7b0adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 04:19:44, skipping insertion in model container [2022-03-01 16:19:44,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 04:19:44" (2/3) ... [2022-03-01 16:19:44,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7b0adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 04:19:44, skipping insertion in model container [2022-03-01 16:19:44,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 04:19:44" (3/3) ... [2022-03-01 16:19:44,724 INFO L111 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2022-03-01 16:19:44,727 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 16:19:44,728 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 16:19:44,728 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 16:19:44,728 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 16:19:44,758 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,758 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,761 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,761 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,762 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,762 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,762 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,762 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,763 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,764 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,765 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,765 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,765 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,765 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,765 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,766 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,766 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,766 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,766 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,766 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,767 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,767 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,767 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,767 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,768 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,768 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,770 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,770 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,770 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,770 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,771 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,771 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,771 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,771 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,772 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,772 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,772 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,772 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,773 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,773 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,773 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,773 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 16:19:44,776 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-01 16:19:44,804 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 16:19:44,810 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, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-01 16:19:44,810 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-01 16:19:44,820 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 149 places, 138 transitions, 308 flow [2022-03-01 16:19:45,939 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 33672 states, 33671 states have (on average 4.136764574856701) internal successors, (139289), 33671 states have internal predecessors, (139289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:19:45,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 33672 states, 33671 states have (on average 4.136764574856701) internal successors, (139289), 33671 states have internal predecessors, (139289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:19:46,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:19:46,488 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:19:46,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:19:46,489 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:19:46,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:19:46,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1535193811, now seen corresponding path program 1 times [2022-03-01 16:19:46,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:19:46,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736753633] [2022-03-01 16:19:46,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:19:46,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:19:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:19:46,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:19:46,965 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:19:46,965 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736753633] [2022-03-01 16:19:46,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736753633] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:19:46,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:19:46,966 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 16:19:46,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97541546] [2022-03-01 16:19:46,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:19:46,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 16:19:46,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:19:46,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 16:19:46,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 16:19:47,067 INFO L87 Difference]: Start difference. First operand has 33672 states, 33671 states have (on average 4.136764574856701) internal successors, (139289), 33671 states have internal predecessors, (139289), 0 states have call successors, (0), 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 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:19:47,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:19:47,514 INFO L93 Difference]: Finished difference Result 27912 states and 113862 transitions. [2022-03-01 16:19:47,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 16:19:47,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:19:47,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:19:47,817 INFO L225 Difference]: With dead ends: 27912 [2022-03-01 16:19:47,817 INFO L226 Difference]: Without dead ends: 27910 [2022-03-01 16:19:47,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 16:19:47,826 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 34 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:19:47,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 181 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:19:47,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27910 states. [2022-03-01 16:19:48,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27910 to 27910. [2022-03-01 16:19:48,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27910 states, 27909 states have (on average 4.079687555985524) internal successors, (113860), 27909 states have internal predecessors, (113860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:19:49,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27910 states to 27910 states and 113860 transitions. [2022-03-01 16:19:49,073 INFO L78 Accepts]: Start accepts. Automaton has 27910 states and 113860 transitions. Word has length 117 [2022-03-01 16:19:49,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:19:49,073 INFO L470 AbstractCegarLoop]: Abstraction has 27910 states and 113860 transitions. [2022-03-01 16:19:49,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:19:49,073 INFO L276 IsEmpty]: Start isEmpty. Operand 27910 states and 113860 transitions. [2022-03-01 16:19:49,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:19:49,353 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:19:49,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:19:49,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 16:19:49,354 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:19:49,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:19:49,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1372129713, now seen corresponding path program 2 times [2022-03-01 16:19:49,356 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:19:49,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544398456] [2022-03-01 16:19:49,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:19:49,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:19:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:19:49,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:19:49,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:19:49,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544398456] [2022-03-01 16:19:49,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544398456] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:19:49,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:19:49,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 16:19:49,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862160969] [2022-03-01 16:19:49,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:19:49,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 16:19:49,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:19:49,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 16:19:49,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 16:19:49,614 INFO L87 Difference]: Start difference. First operand 27910 states and 113860 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:19:49,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:19:49,987 INFO L93 Difference]: Finished difference Result 23500 states and 94420 transitions. [2022-03-01 16:19:49,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 16:19:49,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:19:49,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:19:50,092 INFO L225 Difference]: With dead ends: 23500 [2022-03-01 16:19:50,092 INFO L226 Difference]: Without dead ends: 23500 [2022-03-01 16:19:50,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 16:19:50,094 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 20 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:19:50,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 169 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 16:19:50,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23500 states. [2022-03-01 16:19:50,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23500 to 23500. [2022-03-01 16:19:50,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23500 states, 23499 states have (on average 4.0180433209923825) internal successors, (94420), 23499 states have internal predecessors, (94420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:19:51,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23500 states to 23500 states and 94420 transitions. [2022-03-01 16:19:51,040 INFO L78 Accepts]: Start accepts. Automaton has 23500 states and 94420 transitions. Word has length 117 [2022-03-01 16:19:51,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:19:51,041 INFO L470 AbstractCegarLoop]: Abstraction has 23500 states and 94420 transitions. [2022-03-01 16:19:51,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:19:51,041 INFO L276 IsEmpty]: Start isEmpty. Operand 23500 states and 94420 transitions. [2022-03-01 16:19:51,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:19:51,106 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:19:51,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:19:51,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 16:19:51,107 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:19:51,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:19:51,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1070905129, now seen corresponding path program 3 times [2022-03-01 16:19:51,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:19:51,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412228432] [2022-03-01 16:19:51,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:19:51,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:19:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:19:52,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:19:52,358 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:19:52,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412228432] [2022-03-01 16:19:52,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412228432] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:19:52,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:19:52,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:19:52,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613761944] [2022-03-01 16:19:52,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:19:52,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:19:52,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:19:52,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:19:52,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:19:52,362 INFO L87 Difference]: Start difference. First operand 23500 states and 94420 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:19:54,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:19:54,399 INFO L93 Difference]: Finished difference Result 55333 states and 218353 transitions. [2022-03-01 16:19:54,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:19:54,399 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:19:54,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:19:54,858 INFO L225 Difference]: With dead ends: 55333 [2022-03-01 16:19:54,858 INFO L226 Difference]: Without dead ends: 54346 [2022-03-01 16:19:54,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=223, Invalid=479, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:19:54,865 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 620 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 16:19:54,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [620 Valid, 2828 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 16:19:54,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54346 states. [2022-03-01 16:19:55,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54346 to 24472. [2022-03-01 16:19:55,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24472 states, 24471 states have (on average 4.01017530955008) internal successors, (98133), 24471 states have internal predecessors, (98133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:19:56,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24472 states to 24472 states and 98133 transitions. [2022-03-01 16:19:56,122 INFO L78 Accepts]: Start accepts. Automaton has 24472 states and 98133 transitions. Word has length 117 [2022-03-01 16:19:56,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:19:56,122 INFO L470 AbstractCegarLoop]: Abstraction has 24472 states and 98133 transitions. [2022-03-01 16:19:56,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:19:56,123 INFO L276 IsEmpty]: Start isEmpty. Operand 24472 states and 98133 transitions. [2022-03-01 16:19:56,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:19:56,173 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:19:56,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:19:56,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 16:19:56,174 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:19:56,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:19:56,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2042458025, now seen corresponding path program 4 times [2022-03-01 16:19:56,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:19:56,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132040716] [2022-03-01 16:19:56,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:19:56,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:19:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:19:57,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:19:57,063 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:19:57,063 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132040716] [2022-03-01 16:19:57,063 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132040716] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:19:57,063 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:19:57,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:19:57,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520827142] [2022-03-01 16:19:57,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:19:57,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:19:57,064 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:19:57,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:19:57,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:19:57,064 INFO L87 Difference]: Start difference. First operand 24472 states and 98133 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:19:59,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:19:59,139 INFO L93 Difference]: Finished difference Result 55522 states and 218749 transitions. [2022-03-01 16:19:59,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:19:59,141 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:19:59,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:19:59,464 INFO L225 Difference]: With dead ends: 55522 [2022-03-01 16:19:59,464 INFO L226 Difference]: Without dead ends: 54940 [2022-03-01 16:19:59,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=479, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:19:59,466 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 724 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:19:59,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [724 Valid, 2776 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:19:59,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54940 states. [2022-03-01 16:20:00,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54940 to 24508. [2022-03-01 16:20:00,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24508 states, 24507 states have (on average 4.00881380829967) internal successors, (98244), 24507 states have internal predecessors, (98244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:00,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24508 states to 24508 states and 98244 transitions. [2022-03-01 16:20:00,763 INFO L78 Accepts]: Start accepts. Automaton has 24508 states and 98244 transitions. Word has length 117 [2022-03-01 16:20:00,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:20:00,764 INFO L470 AbstractCegarLoop]: Abstraction has 24508 states and 98244 transitions. [2022-03-01 16:20:00,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:00,764 INFO L276 IsEmpty]: Start isEmpty. Operand 24508 states and 98244 transitions. [2022-03-01 16:20:00,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:20:00,811 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:20:00,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:20:00,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 16:20:00,812 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:20:00,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:20:00,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1762640513, now seen corresponding path program 5 times [2022-03-01 16:20:00,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:20:00,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488857766] [2022-03-01 16:20:00,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:20:00,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:20:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:20:01,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:20:01,826 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:20:01,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488857766] [2022-03-01 16:20:01,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488857766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:20:01,826 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:20:01,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:20:01,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329386537] [2022-03-01 16:20:01,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:20:01,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:20:01,827 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:20:01,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:20:01,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:20:01,827 INFO L87 Difference]: Start difference. First operand 24508 states and 98244 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:03,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:20:03,705 INFO L93 Difference]: Finished difference Result 54937 states and 216781 transitions. [2022-03-01 16:20:03,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:20:03,706 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:20:03,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:20:03,913 INFO L225 Difference]: With dead ends: 54937 [2022-03-01 16:20:03,914 INFO L226 Difference]: Without dead ends: 54238 [2022-03-01 16:20:03,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=479, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:20:03,919 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 588 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 3066 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:20:03,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [588 Valid, 3066 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:20:04,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54238 states. [2022-03-01 16:20:04,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54238 to 24364. [2022-03-01 16:20:04,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.009851003570989) internal successors, (97692), 24363 states have internal predecessors, (97692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:05,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97692 transitions. [2022-03-01 16:20:05,029 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97692 transitions. Word has length 117 [2022-03-01 16:20:05,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:20:05,030 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97692 transitions. [2022-03-01 16:20:05,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:05,030 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97692 transitions. [2022-03-01 16:20:05,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:20:05,077 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:20:05,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:20:05,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 16:20:05,077 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:20:05,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:20:05,078 INFO L85 PathProgramCache]: Analyzing trace with hash -347353081, now seen corresponding path program 6 times [2022-03-01 16:20:05,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:20:05,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622569624] [2022-03-01 16:20:05,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:20:05,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:20:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:20:06,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:20:06,028 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:20:06,028 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622569624] [2022-03-01 16:20:06,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622569624] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:20:06,028 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:20:06,028 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:20:06,028 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132275660] [2022-03-01 16:20:06,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:20:06,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:20:06,029 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:20:06,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:20:06,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:20:06,029 INFO L87 Difference]: Start difference. First operand 24364 states and 97692 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:07,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:20:07,783 INFO L93 Difference]: Finished difference Result 55441 states and 218614 transitions. [2022-03-01 16:20:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:20:07,783 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:20:07,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:20:08,028 INFO L225 Difference]: With dead ends: 55441 [2022-03-01 16:20:08,028 INFO L226 Difference]: Without dead ends: 54859 [2022-03-01 16:20:08,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=267, Invalid=545, Unknown=0, NotChecked=0, Total=812 [2022-03-01 16:20:08,029 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 667 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 2856 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:20:08,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [667 Valid, 2856 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:20:08,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54859 states. [2022-03-01 16:20:08,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54859 to 24472. [2022-03-01 16:20:09,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24472 states, 24471 states have (on average 4.008704180458502) internal successors, (98097), 24471 states have internal predecessors, (98097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:09,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24472 states to 24472 states and 98097 transitions. [2022-03-01 16:20:09,077 INFO L78 Accepts]: Start accepts. Automaton has 24472 states and 98097 transitions. Word has length 117 [2022-03-01 16:20:09,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:20:09,077 INFO L470 AbstractCegarLoop]: Abstraction has 24472 states and 98097 transitions. [2022-03-01 16:20:09,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:09,077 INFO L276 IsEmpty]: Start isEmpty. Operand 24472 states and 98097 transitions. [2022-03-01 16:20:09,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:20:09,124 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:20:09,124 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] [2022-03-01 16:20:09,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-01 16:20:09,139 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:20:09,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:20:09,139 INFO L85 PathProgramCache]: Analyzing trace with hash 142515677, now seen corresponding path program 7 times [2022-03-01 16:20:09,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:20:09,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132559664] [2022-03-01 16:20:09,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:20:09,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:20:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:20:10,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:20:10,073 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:20:10,073 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132559664] [2022-03-01 16:20:10,073 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132559664] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:20:10,073 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:20:10,073 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:20:10,073 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813202766] [2022-03-01 16:20:10,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:20:10,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:20:10,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:20:10,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:20:10,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:20:10,075 INFO L87 Difference]: Start difference. First operand 24472 states and 98097 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:12,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:20:12,101 INFO L93 Difference]: Finished difference Result 55414 states and 218488 transitions. [2022-03-01 16:20:12,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 16:20:12,101 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:20:12,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:20:12,355 INFO L225 Difference]: With dead ends: 55414 [2022-03-01 16:20:12,355 INFO L226 Difference]: Without dead ends: 54823 [2022-03-01 16:20:12,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=247, Invalid=509, Unknown=0, NotChecked=0, Total=756 [2022-03-01 16:20:12,357 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 609 mSDsluCounter, 3138 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 2972 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:20:12,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [609 Valid, 2972 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:20:12,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54823 states. [2022-03-01 16:20:13,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54823 to 24436. [2022-03-01 16:20:13,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24436 states, 24435 states have (on average 4.008594229588705) internal successors, (97950), 24435 states have internal predecessors, (97950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:13,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24436 states to 24436 states and 97950 transitions. [2022-03-01 16:20:13,473 INFO L78 Accepts]: Start accepts. Automaton has 24436 states and 97950 transitions. Word has length 117 [2022-03-01 16:20:13,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:20:13,473 INFO L470 AbstractCegarLoop]: Abstraction has 24436 states and 97950 transitions. [2022-03-01 16:20:13,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:13,473 INFO L276 IsEmpty]: Start isEmpty. Operand 24436 states and 97950 transitions. [2022-03-01 16:20:13,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:20:13,523 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:20:13,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:20:13,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-01 16:20:13,523 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:20:13,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:20:13,524 INFO L85 PathProgramCache]: Analyzing trace with hash -769438449, now seen corresponding path program 8 times [2022-03-01 16:20:13,524 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:20:13,524 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055093031] [2022-03-01 16:20:13,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:20:13,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:20:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:20:14,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:20:14,183 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:20:14,183 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055093031] [2022-03-01 16:20:14,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055093031] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:20:14,184 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:20:14,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:20:14,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412275325] [2022-03-01 16:20:14,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:20:14,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:20:14,184 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:20:14,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:20:14,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:20:14,185 INFO L87 Difference]: Start difference. First operand 24436 states and 97950 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:16,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:20:16,157 INFO L93 Difference]: Finished difference Result 54820 states and 216499 transitions. [2022-03-01 16:20:16,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 16:20:16,157 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:20:16,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:20:16,353 INFO L225 Difference]: With dead ends: 54820 [2022-03-01 16:20:16,353 INFO L226 Difference]: Without dead ends: 53545 [2022-03-01 16:20:16,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=507, Unknown=0, NotChecked=0, Total=756 [2022-03-01 16:20:16,360 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 572 mSDsluCounter, 2674 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 2585 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:20:16,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [572 Valid, 2585 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:20:16,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53545 states. [2022-03-01 16:20:17,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53545 to 23932. [2022-03-01 16:20:17,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23932 states, 23931 states have (on average 4.015544690986586) internal successors, (96096), 23931 states have internal predecessors, (96096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:17,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23932 states to 23932 states and 96096 transitions. [2022-03-01 16:20:17,297 INFO L78 Accepts]: Start accepts. Automaton has 23932 states and 96096 transitions. Word has length 117 [2022-03-01 16:20:17,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:20:17,298 INFO L470 AbstractCegarLoop]: Abstraction has 23932 states and 96096 transitions. [2022-03-01 16:20:17,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:17,298 INFO L276 IsEmpty]: Start isEmpty. Operand 23932 states and 96096 transitions. [2022-03-01 16:20:17,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:20:17,346 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:20:17,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:20:17,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-01 16:20:17,346 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:20:17,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:20:17,347 INFO L85 PathProgramCache]: Analyzing trace with hash 122932443, now seen corresponding path program 9 times [2022-03-01 16:20:17,347 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:20:17,347 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897531248] [2022-03-01 16:20:17,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:20:17,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:20:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:20:18,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:20:18,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:20:18,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897531248] [2022-03-01 16:20:18,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897531248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:20:18,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:20:18,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:20:18,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491659158] [2022-03-01 16:20:18,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:20:18,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:20:18,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:20:18,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:20:18,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:20:18,317 INFO L87 Difference]: Start difference. First operand 23932 states and 96096 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:20,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:20:20,052 INFO L93 Difference]: Finished difference Result 56617 states and 223019 transitions. [2022-03-01 16:20:20,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:20:20,053 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:20:20,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:20:20,261 INFO L225 Difference]: With dead ends: 56617 [2022-03-01 16:20:20,261 INFO L226 Difference]: Without dead ends: 56023 [2022-03-01 16:20:20,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:20:20,263 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 752 mSDsluCounter, 2891 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 2771 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:20:20,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 2771 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:20:20,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56023 states. [2022-03-01 16:20:21,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56023 to 24244. [2022-03-01 16:20:21,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24244 states, 24243 states have (on average 4.015262137524234) internal successors, (97342), 24243 states have internal predecessors, (97342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:21,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24244 states to 24244 states and 97342 transitions. [2022-03-01 16:20:21,366 INFO L78 Accepts]: Start accepts. Automaton has 24244 states and 97342 transitions. Word has length 117 [2022-03-01 16:20:21,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:20:21,366 INFO L470 AbstractCegarLoop]: Abstraction has 24244 states and 97342 transitions. [2022-03-01 16:20:21,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:21,367 INFO L276 IsEmpty]: Start isEmpty. Operand 24244 states and 97342 transitions. [2022-03-01 16:20:21,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:20:21,417 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:20:21,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:20:21,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-01 16:20:21,417 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:20:21,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:20:21,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1455800059, now seen corresponding path program 10 times [2022-03-01 16:20:21,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:20:21,418 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775015025] [2022-03-01 16:20:21,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:20:21,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:20:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:20:22,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:20:22,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:20:22,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775015025] [2022-03-01 16:20:22,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775015025] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:20:22,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:20:22,233 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:20:22,233 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255583981] [2022-03-01 16:20:22,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:20:22,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:20:22,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:20:22,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:20:22,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:20:22,234 INFO L87 Difference]: Start difference. First operand 24244 states and 97342 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:23,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:20:23,955 INFO L93 Difference]: Finished difference Result 56605 states and 222944 transitions. [2022-03-01 16:20:23,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:20:23,956 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:20:23,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:20:24,175 INFO L225 Difference]: With dead ends: 56605 [2022-03-01 16:20:24,175 INFO L226 Difference]: Without dead ends: 55978 [2022-03-01 16:20:24,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:20:24,177 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 660 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 2993 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:20:24,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [660 Valid, 2993 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:20:24,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55978 states. [2022-03-01 16:20:24,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55978 to 24199. [2022-03-01 16:20:25,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24199 states, 24198 states have (on average 4.015290519877676) internal successors, (97162), 24198 states have internal predecessors, (97162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:25,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24199 states to 24199 states and 97162 transitions. [2022-03-01 16:20:25,287 INFO L78 Accepts]: Start accepts. Automaton has 24199 states and 97162 transitions. Word has length 117 [2022-03-01 16:20:25,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:20:25,288 INFO L470 AbstractCegarLoop]: Abstraction has 24199 states and 97162 transitions. [2022-03-01 16:20:25,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:25,288 INFO L276 IsEmpty]: Start isEmpty. Operand 24199 states and 97162 transitions. [2022-03-01 16:20:25,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:20:25,347 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:20:25,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:20:25,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-01 16:20:25,348 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:20:25,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:20:25,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1870583289, now seen corresponding path program 11 times [2022-03-01 16:20:25,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:20:25,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510729722] [2022-03-01 16:20:25,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:20:25,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:20:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:20:26,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:20:26,060 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:20:26,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510729722] [2022-03-01 16:20:26,060 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510729722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:20:26,060 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:20:26,061 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:20:26,061 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000899293] [2022-03-01 16:20:26,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:20:26,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:20:26,061 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:20:26,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:20:26,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:20:26,062 INFO L87 Difference]: Start difference. First operand 24199 states and 97162 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:27,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:20:27,768 INFO L93 Difference]: Finished difference Result 56965 states and 224249 transitions. [2022-03-01 16:20:27,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:20:27,768 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:20:27,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:20:28,169 INFO L225 Difference]: With dead ends: 56965 [2022-03-01 16:20:28,169 INFO L226 Difference]: Without dead ends: 55843 [2022-03-01 16:20:28,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:20:28,170 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 683 mSDsluCounter, 3072 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:20:28,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [683 Valid, 2916 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:20:28,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55843 states. [2022-03-01 16:20:28,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55843 to 24064. [2022-03-01 16:20:29,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24064 states, 24063 states have (on average 4.01575032207123) internal successors, (96631), 24063 states have internal predecessors, (96631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:29,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24064 states to 24064 states and 96631 transitions. [2022-03-01 16:20:29,104 INFO L78 Accepts]: Start accepts. Automaton has 24064 states and 96631 transitions. Word has length 117 [2022-03-01 16:20:29,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:20:29,105 INFO L470 AbstractCegarLoop]: Abstraction has 24064 states and 96631 transitions. [2022-03-01 16:20:29,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:29,106 INFO L276 IsEmpty]: Start isEmpty. Operand 24064 states and 96631 transitions. [2022-03-01 16:20:29,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:20:29,173 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:20:29,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:20:29,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-01 16:20:29,174 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:20:29,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:20:29,174 INFO L85 PathProgramCache]: Analyzing trace with hash -129350565, now seen corresponding path program 12 times [2022-03-01 16:20:29,174 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:20:29,174 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825851572] [2022-03-01 16:20:29,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:20:29,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:20:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:20:30,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:20:30,190 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:20:30,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825851572] [2022-03-01 16:20:30,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825851572] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:20:30,191 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:20:30,191 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:20:30,191 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554634652] [2022-03-01 16:20:30,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:20:30,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:20:30,191 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:20:30,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:20:30,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:20:30,192 INFO L87 Difference]: Start difference. First operand 24064 states and 96631 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:31,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:20:31,829 INFO L93 Difference]: Finished difference Result 57856 states and 227089 transitions. [2022-03-01 16:20:31,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:20:31,829 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:20:31,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:20:32,041 INFO L225 Difference]: With dead ends: 57856 [2022-03-01 16:20:32,041 INFO L226 Difference]: Without dead ends: 57262 [2022-03-01 16:20:32,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:20:32,042 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 880 mSDsluCounter, 3075 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 2924 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:20:32,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [880 Valid, 2924 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:20:32,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57262 states. [2022-03-01 16:20:32,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57262 to 24121. [2022-03-01 16:20:32,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24121 states, 24120 states have (on average 4.014054726368159) internal successors, (96819), 24120 states have internal predecessors, (96819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:33,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24121 states to 24121 states and 96819 transitions. [2022-03-01 16:20:33,270 INFO L78 Accepts]: Start accepts. Automaton has 24121 states and 96819 transitions. Word has length 117 [2022-03-01 16:20:33,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:20:33,270 INFO L470 AbstractCegarLoop]: Abstraction has 24121 states and 96819 transitions. [2022-03-01 16:20:33,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:33,270 INFO L276 IsEmpty]: Start isEmpty. Operand 24121 states and 96819 transitions. [2022-03-01 16:20:33,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:20:33,325 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:20:33,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:20:33,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-01 16:20:33,326 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:20:33,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:20:33,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1203517051, now seen corresponding path program 13 times [2022-03-01 16:20:33,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:20:33,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677491758] [2022-03-01 16:20:33,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:20:33,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:20:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:20:34,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:20:34,038 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:20:34,038 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677491758] [2022-03-01 16:20:34,038 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677491758] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:20:34,038 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:20:34,038 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:20:34,038 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902729235] [2022-03-01 16:20:34,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:20:34,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:20:34,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:20:34,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:20:34,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:20:34,039 INFO L87 Difference]: Start difference. First operand 24121 states and 96819 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:35,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:20:35,760 INFO L93 Difference]: Finished difference Result 57844 states and 227014 transitions. [2022-03-01 16:20:35,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:20:35,761 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:20:35,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:20:36,132 INFO L225 Difference]: With dead ends: 57844 [2022-03-01 16:20:36,132 INFO L226 Difference]: Without dead ends: 57217 [2022-03-01 16:20:36,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:20:36,133 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 818 mSDsluCounter, 3083 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 2931 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:20:36,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [818 Valid, 2931 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:20:36,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57217 states. [2022-03-01 16:20:36,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57217 to 24076. [2022-03-01 16:20:37,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24076 states, 24075 states have (on average 4.015451713395638) internal successors, (96672), 24075 states have internal predecessors, (96672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:37,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24076 states to 24076 states and 96672 transitions. [2022-03-01 16:20:37,115 INFO L78 Accepts]: Start accepts. Automaton has 24076 states and 96672 transitions. Word has length 117 [2022-03-01 16:20:37,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:20:37,116 INFO L470 AbstractCegarLoop]: Abstraction has 24076 states and 96672 transitions. [2022-03-01 16:20:37,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:37,116 INFO L276 IsEmpty]: Start isEmpty. Operand 24076 states and 96672 transitions. [2022-03-01 16:20:37,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:20:37,165 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:20:37,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:20:37,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-01 16:20:37,165 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:20:37,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:20:37,166 INFO L85 PathProgramCache]: Analyzing trace with hash -748052795, now seen corresponding path program 14 times [2022-03-01 16:20:37,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:20:37,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490529644] [2022-03-01 16:20:37,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:20:37,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:20:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:20:38,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:20:38,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:20:38,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490529644] [2022-03-01 16:20:38,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490529644] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:20:38,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:20:38,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:20:38,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070808825] [2022-03-01 16:20:38,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:20:38,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:20:38,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:20:38,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:20:38,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:20:38,002 INFO L87 Difference]: Start difference. First operand 24076 states and 96672 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:39,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:20:39,812 INFO L93 Difference]: Finished difference Result 57079 states and 224440 transitions. [2022-03-01 16:20:39,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:20:39,812 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:20:39,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:20:40,100 INFO L225 Difference]: With dead ends: 57079 [2022-03-01 16:20:40,101 INFO L226 Difference]: Without dead ends: 56485 [2022-03-01 16:20:40,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:20:40,101 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 815 mSDsluCounter, 2974 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 2836 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:20:40,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [815 Valid, 2836 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:20:40,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56485 states. [2022-03-01 16:20:41,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56485 to 24112. [2022-03-01 16:20:41,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24112 states, 24111 states have (on average 4.014059972626602) internal successors, (96783), 24111 states have internal predecessors, (96783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:41,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24112 states to 24112 states and 96783 transitions. [2022-03-01 16:20:41,141 INFO L78 Accepts]: Start accepts. Automaton has 24112 states and 96783 transitions. Word has length 117 [2022-03-01 16:20:41,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:20:41,141 INFO L470 AbstractCegarLoop]: Abstraction has 24112 states and 96783 transitions. [2022-03-01 16:20:41,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:41,142 INFO L276 IsEmpty]: Start isEmpty. Operand 24112 states and 96783 transitions. [2022-03-01 16:20:41,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:20:41,189 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:20:41,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:20:41,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-01 16:20:41,190 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:20:41,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:20:41,190 INFO L85 PathProgramCache]: Analyzing trace with hash 311958299, now seen corresponding path program 15 times [2022-03-01 16:20:41,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:20:41,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307599242] [2022-03-01 16:20:41,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:20:41,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:20:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:20:42,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:20:42,122 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:20:42,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307599242] [2022-03-01 16:20:42,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307599242] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:20:42,122 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:20:42,122 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:20:42,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823496005] [2022-03-01 16:20:42,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:20:42,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:20:42,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:20:42,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:20:42,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:20:42,123 INFO L87 Difference]: Start difference. First operand 24112 states and 96783 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:43,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:20:43,885 INFO L93 Difference]: Finished difference Result 56590 states and 222847 transitions. [2022-03-01 16:20:43,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:20:43,885 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:20:43,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:20:44,169 INFO L225 Difference]: With dead ends: 56590 [2022-03-01 16:20:44,169 INFO L226 Difference]: Without dead ends: 55999 [2022-03-01 16:20:44,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:20:44,173 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 682 mSDsluCounter, 3040 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 2893 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:20:44,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [682 Valid, 2893 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:20:44,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55999 states. [2022-03-01 16:20:45,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55999 to 24076. [2022-03-01 16:20:45,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24076 states, 24075 states have (on average 4.014953271028038) internal successors, (96660), 24075 states have internal predecessors, (96660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:45,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24076 states to 24076 states and 96660 transitions. [2022-03-01 16:20:45,172 INFO L78 Accepts]: Start accepts. Automaton has 24076 states and 96660 transitions. Word has length 117 [2022-03-01 16:20:45,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:20:45,172 INFO L470 AbstractCegarLoop]: Abstraction has 24076 states and 96660 transitions. [2022-03-01 16:20:45,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:45,173 INFO L276 IsEmpty]: Start isEmpty. Operand 24076 states and 96660 transitions. [2022-03-01 16:20:45,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:20:45,219 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:20:45,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:20:45,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-01 16:20:45,223 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:20:45,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:20:45,224 INFO L85 PathProgramCache]: Analyzing trace with hash -295877403, now seen corresponding path program 16 times [2022-03-01 16:20:45,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:20:45,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865900652] [2022-03-01 16:20:45,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:20:45,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:20:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:20:46,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:20:46,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:20:46,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865900652] [2022-03-01 16:20:46,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865900652] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:20:46,087 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:20:46,087 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:20:46,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9273980] [2022-03-01 16:20:46,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:20:46,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:20:46,087 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:20:46,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:20:46,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:20:46,088 INFO L87 Difference]: Start difference. First operand 24076 states and 96660 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:47,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:20:47,811 INFO L93 Difference]: Finished difference Result 57175 states and 224803 transitions. [2022-03-01 16:20:47,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:20:47,813 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:20:47,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:20:48,005 INFO L225 Difference]: With dead ends: 57175 [2022-03-01 16:20:48,006 INFO L226 Difference]: Without dead ends: 56593 [2022-03-01 16:20:48,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:20:48,006 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 799 mSDsluCounter, 2971 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 2829 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:20:48,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [799 Valid, 2829 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:20:48,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56593 states. [2022-03-01 16:20:48,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56593 to 24112. [2022-03-01 16:20:48,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24112 states, 24111 states have (on average 4.0135622744805275) internal successors, (96771), 24111 states have internal predecessors, (96771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:49,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24112 states to 24112 states and 96771 transitions. [2022-03-01 16:20:49,079 INFO L78 Accepts]: Start accepts. Automaton has 24112 states and 96771 transitions. Word has length 117 [2022-03-01 16:20:49,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:20:49,080 INFO L470 AbstractCegarLoop]: Abstraction has 24112 states and 96771 transitions. [2022-03-01 16:20:49,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:49,080 INFO L276 IsEmpty]: Start isEmpty. Operand 24112 states and 96771 transitions. [2022-03-01 16:20:49,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:20:49,127 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:20:49,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:20:49,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-01 16:20:49,128 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:20:49,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:20:49,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1978403525, now seen corresponding path program 17 times [2022-03-01 16:20:49,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:20:49,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257018385] [2022-03-01 16:20:49,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:20:49,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:20:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:20:49,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:20:49,818 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:20:49,818 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257018385] [2022-03-01 16:20:49,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257018385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:20:49,818 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:20:49,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:20:49,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107647302] [2022-03-01 16:20:49,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:20:49,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:20:49,819 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:20:49,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:20:49,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:20:49,819 INFO L87 Difference]: Start difference. First operand 24112 states and 96771 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:51,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:20:51,387 INFO L93 Difference]: Finished difference Result 56590 states and 222835 transitions. [2022-03-01 16:20:51,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:20:51,388 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:20:51,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:20:51,742 INFO L225 Difference]: With dead ends: 56590 [2022-03-01 16:20:51,742 INFO L226 Difference]: Without dead ends: 55987 [2022-03-01 16:20:51,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:20:51,743 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 751 mSDsluCounter, 2997 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 2837 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:20:51,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 2837 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:20:51,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55987 states. [2022-03-01 16:20:52,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55987 to 24064. [2022-03-01 16:20:52,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24064 states, 24063 states have (on average 4.015251631134937) internal successors, (96619), 24063 states have internal predecessors, (96619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:52,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24064 states to 24064 states and 96619 transitions. [2022-03-01 16:20:52,670 INFO L78 Accepts]: Start accepts. Automaton has 24064 states and 96619 transitions. Word has length 117 [2022-03-01 16:20:52,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:20:52,670 INFO L470 AbstractCegarLoop]: Abstraction has 24064 states and 96619 transitions. [2022-03-01 16:20:52,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:52,671 INFO L276 IsEmpty]: Start isEmpty. Operand 24064 states and 96619 transitions. [2022-03-01 16:20:52,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:20:52,722 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:20:52,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:20:52,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-01 16:20:52,722 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:20:52,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:20:52,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1869964857, now seen corresponding path program 18 times [2022-03-01 16:20:52,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:20:52,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523424928] [2022-03-01 16:20:52,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:20:52,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:20:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:20:53,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:20:53,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:20:53,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523424928] [2022-03-01 16:20:53,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523424928] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:20:53,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:20:53,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:20:53,415 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384530467] [2022-03-01 16:20:53,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:20:53,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:20:53,416 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:20:53,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:20:53,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:20:53,416 INFO L87 Difference]: Start difference. First operand 24064 states and 96619 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:55,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:20:55,298 INFO L93 Difference]: Finished difference Result 57667 states and 226631 transitions. [2022-03-01 16:20:55,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:20:55,299 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:20:55,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:20:55,585 INFO L225 Difference]: With dead ends: 57667 [2022-03-01 16:20:55,585 INFO L226 Difference]: Without dead ends: 56680 [2022-03-01 16:20:55,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:20:55,585 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 835 mSDsluCounter, 2917 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 2778 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-01 16:20:55,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [835 Valid, 2778 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-01 16:20:55,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56680 states. [2022-03-01 16:20:56,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56680 to 24172. [2022-03-01 16:20:56,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24172 states, 24171 states have (on average 4.011087667039014) internal successors, (96952), 24171 states have internal predecessors, (96952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:56,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24172 states to 24172 states and 96952 transitions. [2022-03-01 16:20:56,592 INFO L78 Accepts]: Start accepts. Automaton has 24172 states and 96952 transitions. Word has length 117 [2022-03-01 16:20:56,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:20:56,592 INFO L470 AbstractCegarLoop]: Abstraction has 24172 states and 96952 transitions. [2022-03-01 16:20:56,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:56,593 INFO L276 IsEmpty]: Start isEmpty. Operand 24172 states and 96952 transitions. [2022-03-01 16:20:56,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:20:56,640 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:20:56,640 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:20:56,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-01 16:20:56,641 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:20:56,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:20:56,655 INFO L85 PathProgramCache]: Analyzing trace with hash 500999523, now seen corresponding path program 19 times [2022-03-01 16:20:56,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:20:56,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308992423] [2022-03-01 16:20:56,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:20:56,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:20:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:20:57,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:20:57,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:20:57,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308992423] [2022-03-01 16:20:57,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308992423] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:20:57,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:20:57,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:20:57,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314840436] [2022-03-01 16:20:57,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:20:57,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:20:57,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:20:57,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:20:57,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:20:57,563 INFO L87 Difference]: Start difference. First operand 24172 states and 96952 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:20:59,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:20:59,260 INFO L93 Difference]: Finished difference Result 57271 states and 225095 transitions. [2022-03-01 16:20:59,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:20:59,260 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:20:59,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:20:59,467 INFO L225 Difference]: With dead ends: 57271 [2022-03-01 16:20:59,467 INFO L226 Difference]: Without dead ends: 56689 [2022-03-01 16:20:59,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:20:59,468 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 877 mSDsluCounter, 2835 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 2713 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:20:59,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [877 Valid, 2713 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:20:59,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56689 states. [2022-03-01 16:21:00,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56689 to 24208. [2022-03-01 16:21:00,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24208 states, 24207 states have (on average 4.009707935721073) internal successors, (97063), 24207 states have internal predecessors, (97063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:00,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24208 states to 24208 states and 97063 transitions. [2022-03-01 16:21:00,606 INFO L78 Accepts]: Start accepts. Automaton has 24208 states and 97063 transitions. Word has length 117 [2022-03-01 16:21:00,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:00,607 INFO L470 AbstractCegarLoop]: Abstraction has 24208 states and 97063 transitions. [2022-03-01 16:21:00,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:00,607 INFO L276 IsEmpty]: Start isEmpty. Operand 24208 states and 97063 transitions. [2022-03-01 16:21:00,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:21:00,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:00,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:00,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-01 16:21:00,657 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:00,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:00,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1181526599, now seen corresponding path program 20 times [2022-03-01 16:21:00,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:00,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782382069] [2022-03-01 16:21:00,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:00,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:01,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:01,431 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:01,431 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782382069] [2022-03-01 16:21:01,431 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782382069] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:01,431 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:01,431 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:21:01,431 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198905217] [2022-03-01 16:21:01,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:01,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:21:01,431 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:01,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:21:01,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:21:01,432 INFO L87 Difference]: Start difference. First operand 24208 states and 97063 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:03,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:03,276 INFO L93 Difference]: Finished difference Result 56686 states and 223127 transitions. [2022-03-01 16:21:03,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:21:03,276 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:21:03,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:03,464 INFO L225 Difference]: With dead ends: 56686 [2022-03-01 16:21:03,464 INFO L226 Difference]: Without dead ends: 55951 [2022-03-01 16:21:03,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:21:03,469 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 720 mSDsluCounter, 2980 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 2836 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:03,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 2836 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:21:03,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55951 states. [2022-03-01 16:21:04,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55951 to 24028. [2022-03-01 16:21:04,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24028 states, 24027 states have (on average 4.015149623340409) internal successors, (96472), 24027 states have internal predecessors, (96472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:04,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24028 states to 24028 states and 96472 transitions. [2022-03-01 16:21:04,501 INFO L78 Accepts]: Start accepts. Automaton has 24028 states and 96472 transitions. Word has length 117 [2022-03-01 16:21:04,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:04,501 INFO L470 AbstractCegarLoop]: Abstraction has 24028 states and 96472 transitions. [2022-03-01 16:21:04,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:04,502 INFO L276 IsEmpty]: Start isEmpty. Operand 24028 states and 96472 transitions. [2022-03-01 16:21:04,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:21:04,548 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:04,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:04,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-01 16:21:04,548 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:04,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:04,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1614110915, now seen corresponding path program 21 times [2022-03-01 16:21:04,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:04,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140107111] [2022-03-01 16:21:04,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:04,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:05,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:05,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:05,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140107111] [2022-03-01 16:21:05,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140107111] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:05,420 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:05,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:21:05,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018551080] [2022-03-01 16:21:05,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:05,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:21:05,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:05,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:21:05,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:21:05,421 INFO L87 Difference]: Start difference. First operand 24028 states and 96472 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:07,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:07,303 INFO L93 Difference]: Finished difference Result 58003 states and 227897 transitions. [2022-03-01 16:21:07,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:21:07,304 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:21:07,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:07,533 INFO L225 Difference]: With dead ends: 58003 [2022-03-01 16:21:07,534 INFO L226 Difference]: Without dead ends: 57409 [2022-03-01 16:21:07,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=257, Invalid=555, Unknown=0, NotChecked=0, Total=812 [2022-03-01 16:21:07,534 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 788 mSDsluCounter, 3330 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 3164 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:07,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [788 Valid, 3164 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:21:07,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57409 states. [2022-03-01 16:21:08,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57409 to 24109. [2022-03-01 16:21:08,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24109 states, 24108 states have (on average 4.013854322216692) internal successors, (96766), 24108 states have internal predecessors, (96766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:08,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24109 states to 24109 states and 96766 transitions. [2022-03-01 16:21:08,525 INFO L78 Accepts]: Start accepts. Automaton has 24109 states and 96766 transitions. Word has length 117 [2022-03-01 16:21:08,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:08,525 INFO L470 AbstractCegarLoop]: Abstraction has 24109 states and 96766 transitions. [2022-03-01 16:21:08,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:08,525 INFO L276 IsEmpty]: Start isEmpty. Operand 24109 states and 96766 transitions. [2022-03-01 16:21:08,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:21:08,575 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:08,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:08,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-01 16:21:08,575 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:08,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:08,576 INFO L85 PathProgramCache]: Analyzing trace with hash -281243299, now seen corresponding path program 22 times [2022-03-01 16:21:08,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:08,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104730185] [2022-03-01 16:21:08,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:08,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:09,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:09,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:09,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104730185] [2022-03-01 16:21:09,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104730185] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:09,550 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:09,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:21:09,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685033633] [2022-03-01 16:21:09,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:09,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:21:09,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:09,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:21:09,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:21:09,552 INFO L87 Difference]: Start difference. First operand 24109 states and 96766 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:11,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:11,324 INFO L93 Difference]: Finished difference Result 58396 states and 229307 transitions. [2022-03-01 16:21:11,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 16:21:11,325 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:21:11,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:11,527 INFO L225 Difference]: With dead ends: 58396 [2022-03-01 16:21:11,527 INFO L226 Difference]: Without dead ends: 57769 [2022-03-01 16:21:11,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=277, Invalid=593, Unknown=0, NotChecked=0, Total=870 [2022-03-01 16:21:11,528 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 734 mSDsluCounter, 3462 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 3288 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:11,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [734 Valid, 3288 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:21:11,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57769 states. [2022-03-01 16:21:12,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57769 to 24064. [2022-03-01 16:21:12,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24064 states, 24063 states have (on average 4.015251631134937) internal successors, (96619), 24063 states have internal predecessors, (96619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:12,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24064 states to 24064 states and 96619 transitions. [2022-03-01 16:21:12,575 INFO L78 Accepts]: Start accepts. Automaton has 24064 states and 96619 transitions. Word has length 117 [2022-03-01 16:21:12,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:12,575 INFO L470 AbstractCegarLoop]: Abstraction has 24064 states and 96619 transitions. [2022-03-01 16:21:12,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:12,575 INFO L276 IsEmpty]: Start isEmpty. Operand 24064 states and 96619 transitions. [2022-03-01 16:21:12,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:21:12,623 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:12,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:12,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-01 16:21:12,624 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:12,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:12,624 INFO L85 PathProgramCache]: Analyzing trace with hash 2062154151, now seen corresponding path program 23 times [2022-03-01 16:21:12,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:12,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654581947] [2022-03-01 16:21:12,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:12,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:13,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:13,267 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:13,268 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654581947] [2022-03-01 16:21:13,268 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654581947] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:13,268 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:13,268 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:21:13,268 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411708072] [2022-03-01 16:21:13,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:13,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:21:13,268 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:13,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:21:13,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:21:13,269 INFO L87 Difference]: Start difference. First operand 24064 states and 96619 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:15,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:15,026 INFO L93 Difference]: Finished difference Result 58552 states and 229694 transitions. [2022-03-01 16:21:15,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 16:21:15,027 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:21:15,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:15,237 INFO L225 Difference]: With dead ends: 58552 [2022-03-01 16:21:15,238 INFO L226 Difference]: Without dead ends: 57958 [2022-03-01 16:21:15,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-03-01 16:21:15,238 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 882 mSDsluCounter, 3089 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 2946 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:15,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [882 Valid, 2946 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:21:15,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57958 states. [2022-03-01 16:21:16,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57958 to 24100. [2022-03-01 16:21:16,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24100 states, 24099 states have (on average 4.013859496244658) internal successors, (96730), 24099 states have internal predecessors, (96730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:16,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24100 states to 24100 states and 96730 transitions. [2022-03-01 16:21:16,347 INFO L78 Accepts]: Start accepts. Automaton has 24100 states and 96730 transitions. Word has length 117 [2022-03-01 16:21:16,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:16,348 INFO L470 AbstractCegarLoop]: Abstraction has 24100 states and 96730 transitions. [2022-03-01 16:21:16,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:16,348 INFO L276 IsEmpty]: Start isEmpty. Operand 24100 states and 96730 transitions. [2022-03-01 16:21:16,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:21:16,395 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:16,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:16,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-01 16:21:16,396 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:16,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:16,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1172802051, now seen corresponding path program 24 times [2022-03-01 16:21:16,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:16,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46486904] [2022-03-01 16:21:16,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:16,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:17,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:17,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:17,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46486904] [2022-03-01 16:21:17,145 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46486904] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:17,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:17,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:21:17,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347715579] [2022-03-01 16:21:17,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:17,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:21:17,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:17,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:21:17,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:21:17,146 INFO L87 Difference]: Start difference. First operand 24100 states and 96730 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:19,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:19,027 INFO L93 Difference]: Finished difference Result 58063 states and 228101 transitions. [2022-03-01 16:21:19,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 16:21:19,027 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:21:19,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:19,249 INFO L225 Difference]: With dead ends: 58063 [2022-03-01 16:21:19,249 INFO L226 Difference]: Without dead ends: 57472 [2022-03-01 16:21:19,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-03-01 16:21:19,251 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 692 mSDsluCounter, 3440 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 3234 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:19,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [692 Valid, 3234 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 16:21:19,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57472 states. [2022-03-01 16:21:20,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57472 to 24064. [2022-03-01 16:21:20,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24064 states, 24063 states have (on average 4.014752940198645) internal successors, (96607), 24063 states have internal predecessors, (96607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:20,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24064 states to 24064 states and 96607 transitions. [2022-03-01 16:21:20,220 INFO L78 Accepts]: Start accepts. Automaton has 24064 states and 96607 transitions. Word has length 117 [2022-03-01 16:21:20,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:20,221 INFO L470 AbstractCegarLoop]: Abstraction has 24064 states and 96607 transitions. [2022-03-01 16:21:20,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:20,221 INFO L276 IsEmpty]: Start isEmpty. Operand 24064 states and 96607 transitions. [2022-03-01 16:21:20,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:21:20,270 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:20,270 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] [2022-03-01 16:21:20,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-01 16:21:20,270 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:20,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:20,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1780637753, now seen corresponding path program 25 times [2022-03-01 16:21:20,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:20,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473820928] [2022-03-01 16:21:20,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:20,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:21,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:21,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:21,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473820928] [2022-03-01 16:21:21,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473820928] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:21,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:21,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:21:21,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4738431] [2022-03-01 16:21:21,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:21,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:21:21,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:21,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:21:21,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:21:21,274 INFO L87 Difference]: Start difference. First operand 24064 states and 96607 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:22,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:22,997 INFO L93 Difference]: Finished difference Result 58540 states and 229652 transitions. [2022-03-01 16:21:22,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 16:21:22,997 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:21:22,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:23,195 INFO L225 Difference]: With dead ends: 58540 [2022-03-01 16:21:23,195 INFO L226 Difference]: Without dead ends: 57958 [2022-03-01 16:21:23,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-03-01 16:21:23,196 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 870 mSDsluCounter, 3130 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 2977 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:23,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [870 Valid, 2977 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:21:23,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57958 states. [2022-03-01 16:21:24,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57958 to 24100. [2022-03-01 16:21:24,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24100 states, 24099 states have (on average 4.013361550271796) internal successors, (96718), 24099 states have internal predecessors, (96718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:24,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24100 states to 24100 states and 96718 transitions. [2022-03-01 16:21:24,150 INFO L78 Accepts]: Start accepts. Automaton has 24100 states and 96718 transitions. Word has length 117 [2022-03-01 16:21:24,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:24,150 INFO L470 AbstractCegarLoop]: Abstraction has 24100 states and 96718 transitions. [2022-03-01 16:21:24,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:24,150 INFO L276 IsEmpty]: Start isEmpty. Operand 24100 states and 96718 transitions. [2022-03-01 16:21:24,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:21:24,391 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:24,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:24,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-01 16:21:24,392 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:24,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:24,403 INFO L85 PathProgramCache]: Analyzing trace with hash 831803421, now seen corresponding path program 26 times [2022-03-01 16:21:24,403 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:24,403 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781868897] [2022-03-01 16:21:24,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:24,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:25,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:25,215 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:25,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781868897] [2022-03-01 16:21:25,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781868897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:25,215 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:25,215 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:21:25,215 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697797313] [2022-03-01 16:21:25,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:25,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:21:25,216 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:25,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:21:25,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:21:25,217 INFO L87 Difference]: Start difference. First operand 24100 states and 96718 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:26,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:26,885 INFO L93 Difference]: Finished difference Result 58063 states and 228089 transitions. [2022-03-01 16:21:26,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 16:21:26,885 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:21:26,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:27,083 INFO L225 Difference]: With dead ends: 58063 [2022-03-01 16:21:27,083 INFO L226 Difference]: Without dead ends: 57460 [2022-03-01 16:21:27,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756 [2022-03-01 16:21:27,084 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 741 mSDsluCounter, 3193 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:27,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [741 Valid, 3025 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:21:27,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57460 states. [2022-03-01 16:21:28,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57460 to 24052. [2022-03-01 16:21:28,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24052 states, 24051 states have (on average 4.0150513492162485) internal successors, (96566), 24051 states have internal predecessors, (96566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:28,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24052 states to 24052 states and 96566 transitions. [2022-03-01 16:21:28,200 INFO L78 Accepts]: Start accepts. Automaton has 24052 states and 96566 transitions. Word has length 117 [2022-03-01 16:21:28,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:28,200 INFO L470 AbstractCegarLoop]: Abstraction has 24052 states and 96566 transitions. [2022-03-01 16:21:28,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:28,200 INFO L276 IsEmpty]: Start isEmpty. Operand 24052 states and 96566 transitions. [2022-03-01 16:21:28,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:21:28,248 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:28,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:28,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-01 16:21:28,248 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:28,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:28,249 INFO L85 PathProgramCache]: Analyzing trace with hash -295066315, now seen corresponding path program 27 times [2022-03-01 16:21:28,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:28,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266255662] [2022-03-01 16:21:28,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:28,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:28,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:28,915 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:28,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266255662] [2022-03-01 16:21:28,915 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266255662] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:28,915 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:28,915 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:21:28,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631665452] [2022-03-01 16:21:28,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:28,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:21:28,916 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:28,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:21:28,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:21:28,916 INFO L87 Difference]: Start difference. First operand 24052 states and 96566 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:30,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:30,462 INFO L93 Difference]: Finished difference Result 57178 states and 225048 transitions. [2022-03-01 16:21:30,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 16:21:30,462 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:21:30,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:30,831 INFO L225 Difference]: With dead ends: 57178 [2022-03-01 16:21:30,832 INFO L226 Difference]: Without dead ends: 56584 [2022-03-01 16:21:30,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=241, Invalid=515, Unknown=0, NotChecked=0, Total=756 [2022-03-01 16:21:30,832 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 815 mSDsluCounter, 2664 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:30,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [815 Valid, 2582 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:21:30,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56584 states. [2022-03-01 16:21:31,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56584 to 24160. [2022-03-01 16:21:31,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24160 states, 24159 states have (on average 4.013866467982946) internal successors, (96971), 24159 states have internal predecessors, (96971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:31,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24160 states to 24160 states and 96971 transitions. [2022-03-01 16:21:31,812 INFO L78 Accepts]: Start accepts. Automaton has 24160 states and 96971 transitions. Word has length 117 [2022-03-01 16:21:31,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:31,812 INFO L470 AbstractCegarLoop]: Abstraction has 24160 states and 96971 transitions. [2022-03-01 16:21:31,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:31,812 INFO L276 IsEmpty]: Start isEmpty. Operand 24160 states and 96971 transitions. [2022-03-01 16:21:31,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:21:31,861 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:31,862 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:31,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-01 16:21:31,862 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:31,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:31,862 INFO L85 PathProgramCache]: Analyzing trace with hash 764944779, now seen corresponding path program 28 times [2022-03-01 16:21:31,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:31,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749037356] [2022-03-01 16:21:31,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:31,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:32,681 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:32,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749037356] [2022-03-01 16:21:32,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749037356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:32,681 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:32,681 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:21:32,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8358519] [2022-03-01 16:21:32,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:32,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:21:32,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:32,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:21:32,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:21:32,682 INFO L87 Difference]: Start difference. First operand 24160 states and 96971 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:34,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:34,485 INFO L93 Difference]: Finished difference Result 57139 states and 224892 transitions. [2022-03-01 16:21:34,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 16:21:34,485 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:21:34,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:34,805 INFO L225 Difference]: With dead ends: 57139 [2022-03-01 16:21:34,805 INFO L226 Difference]: Without dead ends: 56548 [2022-03-01 16:21:34,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=240, Invalid=516, Unknown=0, NotChecked=0, Total=756 [2022-03-01 16:21:34,806 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 815 mSDsluCounter, 2927 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 2796 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:34,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [815 Valid, 2796 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:21:34,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56548 states. [2022-03-01 16:21:35,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56548 to 24124. [2022-03-01 16:21:35,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24124 states, 24123 states have (on average 4.013762798988517) internal successors, (96824), 24123 states have internal predecessors, (96824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:35,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24124 states to 24124 states and 96824 transitions. [2022-03-01 16:21:35,882 INFO L78 Accepts]: Start accepts. Automaton has 24124 states and 96824 transitions. Word has length 117 [2022-03-01 16:21:35,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:35,882 INFO L470 AbstractCegarLoop]: Abstraction has 24124 states and 96824 transitions. [2022-03-01 16:21:35,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:35,882 INFO L276 IsEmpty]: Start isEmpty. Operand 24124 states and 96824 transitions. [2022-03-01 16:21:35,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:21:35,930 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:35,930 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:35,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-01 16:21:35,931 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:35,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:35,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1740003747, now seen corresponding path program 29 times [2022-03-01 16:21:35,933 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:35,933 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475954039] [2022-03-01 16:21:35,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:35,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:36,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:36,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:36,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475954039] [2022-03-01 16:21:36,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475954039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:36,629 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:36,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:21:36,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257315746] [2022-03-01 16:21:36,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:36,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:21:36,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:36,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:21:36,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:21:36,630 INFO L87 Difference]: Start difference. First operand 24124 states and 96824 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:38,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:38,644 INFO L93 Difference]: Finished difference Result 56761 states and 223713 transitions. [2022-03-01 16:21:38,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 16:21:38,644 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:21:38,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:38,854 INFO L225 Difference]: With dead ends: 56761 [2022-03-01 16:21:38,855 INFO L226 Difference]: Without dead ends: 55918 [2022-03-01 16:21:38,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=242, Invalid=514, Unknown=0, NotChecked=0, Total=756 [2022-03-01 16:21:38,855 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 644 mSDsluCounter, 3286 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:38,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [644 Valid, 3092 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 16:21:38,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55918 states. [2022-03-01 16:21:39,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55918 to 24052. [2022-03-01 16:21:39,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24052 states, 24051 states have (on average 4.014053469710199) internal successors, (96542), 24051 states have internal predecessors, (96542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:39,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24052 states to 24052 states and 96542 transitions. [2022-03-01 16:21:39,801 INFO L78 Accepts]: Start accepts. Automaton has 24052 states and 96542 transitions. Word has length 117 [2022-03-01 16:21:39,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:39,801 INFO L470 AbstractCegarLoop]: Abstraction has 24052 states and 96542 transitions. [2022-03-01 16:21:39,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:39,801 INFO L276 IsEmpty]: Start isEmpty. Operand 24052 states and 96542 transitions. [2022-03-01 16:21:39,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:21:39,850 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:39,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:39,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-01 16:21:39,850 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:39,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:39,851 INFO L85 PathProgramCache]: Analyzing trace with hash -2124630731, now seen corresponding path program 30 times [2022-03-01 16:21:39,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:39,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422514248] [2022-03-01 16:21:39,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:39,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:40,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:40,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:40,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422514248] [2022-03-01 16:21:40,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422514248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:40,643 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:40,643 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:21:40,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982689458] [2022-03-01 16:21:40,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:40,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:21:40,643 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:40,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:21:40,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:21:40,644 INFO L87 Difference]: Start difference. First operand 24052 states and 96542 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:42,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:42,531 INFO L93 Difference]: Finished difference Result 58327 states and 229269 transitions. [2022-03-01 16:21:42,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 16:21:42,532 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:21:42,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:42,739 INFO L225 Difference]: With dead ends: 58327 [2022-03-01 16:21:42,739 INFO L226 Difference]: Without dead ends: 57745 [2022-03-01 16:21:42,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=283, Invalid=587, Unknown=0, NotChecked=0, Total=870 [2022-03-01 16:21:42,740 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 702 mSDsluCounter, 3122 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 2988 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:42,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [702 Valid, 2988 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:21:42,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57745 states. [2022-03-01 16:21:43,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57745 to 24160. [2022-03-01 16:21:43,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24160 states, 24159 states have (on average 4.012873049381183) internal successors, (96947), 24159 states have internal predecessors, (96947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:43,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24160 states to 24160 states and 96947 transitions. [2022-03-01 16:21:43,683 INFO L78 Accepts]: Start accepts. Automaton has 24160 states and 96947 transitions. Word has length 117 [2022-03-01 16:21:43,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:43,683 INFO L470 AbstractCegarLoop]: Abstraction has 24160 states and 96947 transitions. [2022-03-01 16:21:43,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:43,684 INFO L276 IsEmpty]: Start isEmpty. Operand 24160 states and 96947 transitions. [2022-03-01 16:21:43,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:21:43,939 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:43,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:43,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-01 16:21:43,939 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:43,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:43,940 INFO L85 PathProgramCache]: Analyzing trace with hash 487810443, now seen corresponding path program 31 times [2022-03-01 16:21:43,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:43,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742357512] [2022-03-01 16:21:43,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:43,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:44,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:44,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:44,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742357512] [2022-03-01 16:21:44,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742357512] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:44,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:44,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:21:44,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132124045] [2022-03-01 16:21:44,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:44,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:21:44,664 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:44,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:21:44,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:21:44,664 INFO L87 Difference]: Start difference. First operand 24160 states and 96947 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:46,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:46,064 INFO L93 Difference]: Finished difference Result 57895 states and 227658 transitions. [2022-03-01 16:21:46,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:21:46,064 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:21:46,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:46,261 INFO L225 Difference]: With dead ends: 57895 [2022-03-01 16:21:46,261 INFO L226 Difference]: Without dead ends: 57304 [2022-03-01 16:21:46,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=263, Invalid=549, Unknown=0, NotChecked=0, Total=812 [2022-03-01 16:21:46,261 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 754 mSDsluCounter, 2793 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:46,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [754 Valid, 2700 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 16:21:46,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57304 states. [2022-03-01 16:21:47,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57304 to 24124. [2022-03-01 16:21:47,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24124 states, 24123 states have (on average 4.0127678978568175) internal successors, (96800), 24123 states have internal predecessors, (96800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:47,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24124 states to 24124 states and 96800 transitions. [2022-03-01 16:21:47,378 INFO L78 Accepts]: Start accepts. Automaton has 24124 states and 96800 transitions. Word has length 117 [2022-03-01 16:21:47,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:47,378 INFO L470 AbstractCegarLoop]: Abstraction has 24124 states and 96800 transitions. [2022-03-01 16:21:47,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:47,378 INFO L276 IsEmpty]: Start isEmpty. Operand 24124 states and 96800 transitions. [2022-03-01 16:21:47,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:21:47,428 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:47,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:47,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-01 16:21:47,429 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:47,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:47,429 INFO L85 PathProgramCache]: Analyzing trace with hash 273223741, now seen corresponding path program 32 times [2022-03-01 16:21:47,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:47,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865836676] [2022-03-01 16:21:47,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:47,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:47,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:47,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:47,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865836676] [2022-03-01 16:21:47,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865836676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:47,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:47,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:21:47,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553530834] [2022-03-01 16:21:47,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:47,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:21:47,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:47,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:21:47,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:21:48,000 INFO L87 Difference]: Start difference. First operand 24124 states and 96800 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:49,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:49,638 INFO L93 Difference]: Finished difference Result 57301 states and 225669 transitions. [2022-03-01 16:21:49,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 16:21:49,639 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:21:49,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:49,825 INFO L225 Difference]: With dead ends: 57301 [2022-03-01 16:21:49,825 INFO L226 Difference]: Without dead ends: 56434 [2022-03-01 16:21:49,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=264, Invalid=548, Unknown=0, NotChecked=0, Total=812 [2022-03-01 16:21:49,826 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 672 mSDsluCounter, 2773 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 2678 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:49,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [672 Valid, 2678 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1131 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:21:50,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56434 states. [2022-03-01 16:21:50,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56434 to 24028. [2022-03-01 16:21:50,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24028 states, 24027 states have (on average 4.014150747076206) internal successors, (96448), 24027 states have internal predecessors, (96448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:50,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24028 states to 24028 states and 96448 transitions. [2022-03-01 16:21:50,880 INFO L78 Accepts]: Start accepts. Automaton has 24028 states and 96448 transitions. Word has length 117 [2022-03-01 16:21:50,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:50,907 INFO L470 AbstractCegarLoop]: Abstraction has 24028 states and 96448 transitions. [2022-03-01 16:21:50,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:50,907 INFO L276 IsEmpty]: Start isEmpty. Operand 24028 states and 96448 transitions. [2022-03-01 16:21:50,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:21:50,978 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:50,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:50,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-01 16:21:50,979 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:50,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:50,979 INFO L85 PathProgramCache]: Analyzing trace with hash -681414563, now seen corresponding path program 33 times [2022-03-01 16:21:50,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:50,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665264968] [2022-03-01 16:21:50,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:50,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:51,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:51,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:51,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665264968] [2022-03-01 16:21:51,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665264968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:51,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:51,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:21:51,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128426622] [2022-03-01 16:21:51,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:51,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:21:51,610 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:51,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:21:51,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:21:51,611 INFO L87 Difference]: Start difference. First operand 24028 states and 96448 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:53,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:53,263 INFO L93 Difference]: Finished difference Result 56314 states and 221759 transitions. [2022-03-01 16:21:53,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:21:53,264 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:21:53,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:53,674 INFO L225 Difference]: With dead ends: 56314 [2022-03-01 16:21:53,674 INFO L226 Difference]: Without dead ends: 55327 [2022-03-01 16:21:53,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=221, Invalid=481, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:21:53,675 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 697 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 2808 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:53,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [697 Valid, 2808 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:21:53,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55327 states. [2022-03-01 16:21:54,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55327 to 24424. [2022-03-01 16:21:54,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24424 states, 24423 states have (on average 4.009376407484748) internal successors, (97921), 24423 states have internal predecessors, (97921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:54,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24424 states to 24424 states and 97921 transitions. [2022-03-01 16:21:54,650 INFO L78 Accepts]: Start accepts. Automaton has 24424 states and 97921 transitions. Word has length 117 [2022-03-01 16:21:54,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:54,650 INFO L470 AbstractCegarLoop]: Abstraction has 24424 states and 97921 transitions. [2022-03-01 16:21:54,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:54,650 INFO L276 IsEmpty]: Start isEmpty. Operand 24424 states and 97921 transitions. [2022-03-01 16:21:54,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:21:54,698 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:54,698 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:54,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-01 16:21:54,698 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:54,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:54,699 INFO L85 PathProgramCache]: Analyzing trace with hash -2050379897, now seen corresponding path program 34 times [2022-03-01 16:21:54,699 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:54,699 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39184663] [2022-03-01 16:21:54,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:54,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:55,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:55,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:55,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39184663] [2022-03-01 16:21:55,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39184663] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:55,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:55,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:21:55,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812794967] [2022-03-01 16:21:55,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:55,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:21:55,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:55,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:21:55,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:21:55,360 INFO L87 Difference]: Start difference. First operand 24424 states and 97921 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:57,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:21:57,207 INFO L93 Difference]: Finished difference Result 56503 states and 222155 transitions. [2022-03-01 16:21:57,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:21:57,207 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:21:57,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:21:57,456 INFO L225 Difference]: With dead ends: 56503 [2022-03-01 16:21:57,456 INFO L226 Difference]: Without dead ends: 55921 [2022-03-01 16:21:57,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=221, Invalid=481, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:21:57,457 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 710 mSDsluCounter, 3088 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 2917 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 16:21:57,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [710 Valid, 2917 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 16:21:57,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55921 states. [2022-03-01 16:21:58,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55921 to 24460. [2022-03-01 16:21:58,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24460 states, 24459 states have (on average 4.008013410196655) internal successors, (98032), 24459 states have internal predecessors, (98032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:58,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24460 states to 24460 states and 98032 transitions. [2022-03-01 16:21:58,454 INFO L78 Accepts]: Start accepts. Automaton has 24460 states and 98032 transitions. Word has length 117 [2022-03-01 16:21:58,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:21:58,455 INFO L470 AbstractCegarLoop]: Abstraction has 24460 states and 98032 transitions. [2022-03-01 16:21:58,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:21:58,455 INFO L276 IsEmpty]: Start isEmpty. Operand 24460 states and 98032 transitions. [2022-03-01 16:21:58,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:21:58,503 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:21:58,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:21:58,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-01 16:21:58,504 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:21:58,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:21:58,504 INFO L85 PathProgramCache]: Analyzing trace with hash 562061277, now seen corresponding path program 35 times [2022-03-01 16:21:58,504 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:21:58,505 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608774596] [2022-03-01 16:21:58,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:21:58,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:21:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:21:59,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:21:59,444 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:21:59,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608774596] [2022-03-01 16:21:59,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608774596] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:21:59,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:21:59,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:21:59,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536464633] [2022-03-01 16:21:59,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:21:59,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:21:59,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:21:59,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:21:59,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:21:59,445 INFO L87 Difference]: Start difference. First operand 24460 states and 98032 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:01,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:01,160 INFO L93 Difference]: Finished difference Result 55918 states and 220187 transitions. [2022-03-01 16:22:01,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:22:01,160 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:22:01,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:01,409 INFO L225 Difference]: With dead ends: 55918 [2022-03-01 16:22:01,409 INFO L226 Difference]: Without dead ends: 55219 [2022-03-01 16:22:01,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=221, Invalid=481, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:22:01,410 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 768 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 2591 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:01,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [768 Valid, 2591 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:22:01,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55219 states. [2022-03-01 16:22:02,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55219 to 24316. [2022-03-01 16:22:02,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.009047912811022) internal successors, (97480), 24315 states have internal predecessors, (97480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:02,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97480 transitions. [2022-03-01 16:22:02,452 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97480 transitions. Word has length 117 [2022-03-01 16:22:02,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:02,452 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97480 transitions. [2022-03-01 16:22:02,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:02,453 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97480 transitions. [2022-03-01 16:22:02,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:22:02,501 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:02,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:22:02,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-01 16:22:02,502 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:02,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:02,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1103717495, now seen corresponding path program 36 times [2022-03-01 16:22:02,502 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:02,502 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210694075] [2022-03-01 16:22:02,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:02,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:03,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:03,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:03,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210694075] [2022-03-01 16:22:03,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210694075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:03,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:03,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:22:03,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261471132] [2022-03-01 16:22:03,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:03,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:22:03,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:03,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:22:03,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:22:03,356 INFO L87 Difference]: Start difference. First operand 24316 states and 97480 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:04,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:04,733 INFO L93 Difference]: Finished difference Result 55882 states and 220040 transitions. [2022-03-01 16:22:04,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:22:04,734 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:22:04,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:04,972 INFO L225 Difference]: With dead ends: 55882 [2022-03-01 16:22:04,972 INFO L226 Difference]: Without dead ends: 55300 [2022-03-01 16:22:04,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=225, Invalid=477, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:22:04,973 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 657 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:04,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [657 Valid, 2695 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 16:22:05,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55300 states. [2022-03-01 16:22:05,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55300 to 24424. [2022-03-01 16:22:05,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24424 states, 24423 states have (on average 4.007902387094132) internal successors, (97885), 24423 states have internal predecessors, (97885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:05,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24424 states to 24424 states and 97885 transitions. [2022-03-01 16:22:05,891 INFO L78 Accepts]: Start accepts. Automaton has 24424 states and 97885 transitions. Word has length 117 [2022-03-01 16:22:05,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:05,891 INFO L470 AbstractCegarLoop]: Abstraction has 24424 states and 97885 transitions. [2022-03-01 16:22:05,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:05,892 INFO L276 IsEmpty]: Start isEmpty. Operand 24424 states and 97885 transitions. [2022-03-01 16:22:06,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:22:06,150 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:06,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:22:06,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-01 16:22:06,151 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:06,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:06,151 INFO L85 PathProgramCache]: Analyzing trace with hash -578808627, now seen corresponding path program 37 times [2022-03-01 16:22:06,151 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:06,151 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670720561] [2022-03-01 16:22:06,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:06,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:06,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:06,797 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:06,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670720561] [2022-03-01 16:22:06,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670720561] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:06,798 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:06,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:22:06,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678432913] [2022-03-01 16:22:06,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:06,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:22:06,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:06,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:22:06,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:22:06,799 INFO L87 Difference]: Start difference. First operand 24424 states and 97885 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:08,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:08,349 INFO L93 Difference]: Finished difference Result 55855 states and 219914 transitions. [2022-03-01 16:22:08,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:22:08,349 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:22:08,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:08,551 INFO L225 Difference]: With dead ends: 55855 [2022-03-01 16:22:08,551 INFO L226 Difference]: Without dead ends: 55264 [2022-03-01 16:22:08,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=225, Invalid=477, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:22:08,552 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 742 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 2765 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:08,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [742 Valid, 2765 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:22:08,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55264 states. [2022-03-01 16:22:09,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55264 to 24388. [2022-03-01 16:22:09,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24388 states, 24387 states have (on average 4.0077910362078155) internal successors, (97738), 24387 states have internal predecessors, (97738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:09,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24388 states to 24388 states and 97738 transitions. [2022-03-01 16:22:09,717 INFO L78 Accepts]: Start accepts. Automaton has 24388 states and 97738 transitions. Word has length 117 [2022-03-01 16:22:09,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:09,717 INFO L470 AbstractCegarLoop]: Abstraction has 24388 states and 97738 transitions. [2022-03-01 16:22:09,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:09,717 INFO L276 IsEmpty]: Start isEmpty. Operand 24388 states and 97738 transitions. [2022-03-01 16:22:09,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:22:09,765 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:09,766 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, 1, 1, 1, 1, 1, 1] [2022-03-01 16:22:09,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-01 16:22:09,766 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:09,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:09,766 INFO L85 PathProgramCache]: Analyzing trace with hash -793395329, now seen corresponding path program 38 times [2022-03-01 16:22:09,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:09,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247831347] [2022-03-01 16:22:09,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:09,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:09,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:10,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:10,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:10,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247831347] [2022-03-01 16:22:10,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247831347] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:10,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:10,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:22:10,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441836266] [2022-03-01 16:22:10,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:10,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:22:10,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:10,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:22:10,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:22:10,474 INFO L87 Difference]: Start difference. First operand 24388 states and 97738 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:12,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:12,072 INFO L93 Difference]: Finished difference Result 55261 states and 217925 transitions. [2022-03-01 16:22:12,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:22:12,073 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:22:12,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:12,256 INFO L225 Difference]: With dead ends: 55261 [2022-03-01 16:22:12,256 INFO L226 Difference]: Without dead ends: 53986 [2022-03-01 16:22:12,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=227, Invalid=475, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:22:12,257 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 629 mSDsluCounter, 2744 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 2629 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:12,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [629 Valid, 2629 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:22:12,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53986 states. [2022-03-01 16:22:13,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53986 to 23884. [2022-03-01 16:22:13,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23884 states, 23883 states have (on average 4.0157434158187835) internal successors, (95908), 23883 states have internal predecessors, (95908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:13,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23884 states to 23884 states and 95908 transitions. [2022-03-01 16:22:13,382 INFO L78 Accepts]: Start accepts. Automaton has 23884 states and 95908 transitions. Word has length 117 [2022-03-01 16:22:13,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:13,382 INFO L470 AbstractCegarLoop]: Abstraction has 23884 states and 95908 transitions. [2022-03-01 16:22:13,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:13,383 INFO L276 IsEmpty]: Start isEmpty. Operand 23884 states and 95908 transitions. [2022-03-01 16:22:13,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:22:13,428 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:13,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:22:13,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-01 16:22:13,429 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:13,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:13,429 INFO L85 PathProgramCache]: Analyzing trace with hash -353600917, now seen corresponding path program 39 times [2022-03-01 16:22:13,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:13,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463581326] [2022-03-01 16:22:13,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:13,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:14,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:14,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:14,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463581326] [2022-03-01 16:22:14,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463581326] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:14,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:14,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:22:14,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414724584] [2022-03-01 16:22:14,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:14,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:22:14,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:14,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:22:14,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:22:14,119 INFO L87 Difference]: Start difference. First operand 23884 states and 95908 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:15,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:15,767 INFO L93 Difference]: Finished difference Result 58096 states and 228389 transitions. [2022-03-01 16:22:15,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:22:15,767 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:22:15,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:16,145 INFO L225 Difference]: With dead ends: 58096 [2022-03-01 16:22:16,145 INFO L226 Difference]: Without dead ends: 57502 [2022-03-01 16:22:16,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:22:16,146 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 831 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:16,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [831 Valid, 2869 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:22:16,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57502 states. [2022-03-01 16:22:17,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57502 to 24865. [2022-03-01 16:22:17,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24865 states, 24864 states have (on average 4.018500643500643) internal successors, (99916), 24864 states have internal predecessors, (99916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:17,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24865 states to 24865 states and 99916 transitions. [2022-03-01 16:22:17,135 INFO L78 Accepts]: Start accepts. Automaton has 24865 states and 99916 transitions. Word has length 117 [2022-03-01 16:22:17,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:17,135 INFO L470 AbstractCegarLoop]: Abstraction has 24865 states and 99916 transitions. [2022-03-01 16:22:17,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:17,135 INFO L276 IsEmpty]: Start isEmpty. Operand 24865 states and 99916 transitions. [2022-03-01 16:22:17,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:22:17,190 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:17,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:22:17,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-01 16:22:17,190 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:17,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:17,191 INFO L85 PathProgramCache]: Analyzing trace with hash 979266699, now seen corresponding path program 40 times [2022-03-01 16:22:17,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:17,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772217333] [2022-03-01 16:22:17,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:17,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:18,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:18,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:18,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772217333] [2022-03-01 16:22:18,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772217333] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:18,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:18,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:22:18,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632098559] [2022-03-01 16:22:18,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:18,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:22:18,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:18,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:22:18,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:22:18,047 INFO L87 Difference]: Start difference. First operand 24865 states and 99916 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:20,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:20,012 INFO L93 Difference]: Finished difference Result 57499 states and 226382 transitions. [2022-03-01 16:22:20,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:22:20,013 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:22:20,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:20,218 INFO L225 Difference]: With dead ends: 57499 [2022-03-01 16:22:20,218 INFO L226 Difference]: Without dead ends: 56872 [2022-03-01 16:22:20,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:22:20,219 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 727 mSDsluCounter, 3133 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:20,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [727 Valid, 2964 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:22:20,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56872 states. [2022-03-01 16:22:21,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56872 to 24820. [2022-03-01 16:22:21,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24820 states, 24819 states have (on average 4.018534187517628) internal successors, (99736), 24819 states have internal predecessors, (99736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:21,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24820 states to 24820 states and 99736 transitions. [2022-03-01 16:22:21,420 INFO L78 Accepts]: Start accepts. Automaton has 24820 states and 99736 transitions. Word has length 117 [2022-03-01 16:22:21,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:21,420 INFO L470 AbstractCegarLoop]: Abstraction has 24820 states and 99736 transitions. [2022-03-01 16:22:21,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:21,421 INFO L276 IsEmpty]: Start isEmpty. Operand 24820 states and 99736 transitions. [2022-03-01 16:22:21,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:22:21,521 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:21,521 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:22:21,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-01 16:22:21,521 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:21,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:21,522 INFO L85 PathProgramCache]: Analyzing trace with hash -972231255, now seen corresponding path program 41 times [2022-03-01 16:22:21,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:21,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543486949] [2022-03-01 16:22:21,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:21,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:22,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:22,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:22,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543486949] [2022-03-01 16:22:22,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543486949] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:22,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:22,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:22:22,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425947307] [2022-03-01 16:22:22,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:22,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:22:22,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:22,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:22:22,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:22:22,162 INFO L87 Difference]: Start difference. First operand 24820 states and 99736 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:24,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:24,064 INFO L93 Difference]: Finished difference Result 56869 states and 224270 transitions. [2022-03-01 16:22:24,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:22:24,064 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:22:24,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:24,258 INFO L225 Difference]: With dead ends: 56869 [2022-03-01 16:22:24,258 INFO L226 Difference]: Without dead ends: 55699 [2022-03-01 16:22:24,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:22:24,258 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 644 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 2879 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:24,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [644 Valid, 2879 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:22:24,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55699 states. [2022-03-01 16:22:25,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55699 to 24685. [2022-03-01 16:22:25,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24685 states, 24684 states have (on average 4.014989466861125) internal successors, (99106), 24684 states have internal predecessors, (99106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:25,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24685 states to 24685 states and 99106 transitions. [2022-03-01 16:22:25,364 INFO L78 Accepts]: Start accepts. Automaton has 24685 states and 99106 transitions. Word has length 117 [2022-03-01 16:22:25,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:25,364 INFO L470 AbstractCegarLoop]: Abstraction has 24685 states and 99106 transitions. [2022-03-01 16:22:25,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:25,364 INFO L276 IsEmpty]: Start isEmpty. Operand 24685 states and 99106 transitions. [2022-03-01 16:22:25,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:22:25,420 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:25,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:22:25,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-01 16:22:25,420 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:25,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:25,421 INFO L85 PathProgramCache]: Analyzing trace with hash 631923851, now seen corresponding path program 42 times [2022-03-01 16:22:25,421 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:25,421 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011577689] [2022-03-01 16:22:25,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:25,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:26,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:26,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:26,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011577689] [2022-03-01 16:22:26,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011577689] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:26,052 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:26,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:22:26,052 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205171591] [2022-03-01 16:22:26,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:26,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:22:26,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:26,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:22:26,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:22:26,053 INFO L87 Difference]: Start difference. First operand 24685 states and 99106 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:27,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:27,834 INFO L93 Difference]: Finished difference Result 57463 states and 226202 transitions. [2022-03-01 16:22:27,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:22:27,835 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:22:27,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:28,254 INFO L225 Difference]: With dead ends: 57463 [2022-03-01 16:22:28,254 INFO L226 Difference]: Without dead ends: 56869 [2022-03-01 16:22:28,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:22:28,255 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 751 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:28,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 2826 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 16:22:28,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56869 states. [2022-03-01 16:22:29,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56869 to 24865. [2022-03-01 16:22:29,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24865 states, 24864 states have (on average 4.013071106821107) internal successors, (99781), 24864 states have internal predecessors, (99781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:29,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24865 states to 24865 states and 99781 transitions. [2022-03-01 16:22:29,288 INFO L78 Accepts]: Start accepts. Automaton has 24865 states and 99781 transitions. Word has length 117 [2022-03-01 16:22:29,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:29,288 INFO L470 AbstractCegarLoop]: Abstraction has 24865 states and 99781 transitions. [2022-03-01 16:22:29,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:29,289 INFO L276 IsEmpty]: Start isEmpty. Operand 24865 states and 99781 transitions. [2022-03-01 16:22:29,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:22:29,344 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:29,344 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] [2022-03-01 16:22:29,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-01 16:22:29,344 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:29,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:29,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1964791467, now seen corresponding path program 43 times [2022-03-01 16:22:29,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:29,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515738470] [2022-03-01 16:22:29,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:29,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:30,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:30,234 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:30,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515738470] [2022-03-01 16:22:30,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515738470] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:30,235 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:30,235 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:22:30,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924648761] [2022-03-01 16:22:30,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:30,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:22:30,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:30,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:22:30,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:22:30,236 INFO L87 Difference]: Start difference. First operand 24865 states and 99781 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:31,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:31,847 INFO L93 Difference]: Finished difference Result 57451 states and 226127 transitions. [2022-03-01 16:22:31,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:22:31,848 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:22:31,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:32,044 INFO L225 Difference]: With dead ends: 57451 [2022-03-01 16:22:32,045 INFO L226 Difference]: Without dead ends: 56824 [2022-03-01 16:22:32,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:22:32,045 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 676 mSDsluCounter, 3103 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 2922 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:32,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [676 Valid, 2922 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:22:32,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56824 states. [2022-03-01 16:22:32,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56824 to 24820. [2022-03-01 16:22:32,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24820 states, 24819 states have (on average 4.013094806398324) internal successors, (99601), 24819 states have internal predecessors, (99601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:33,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24820 states to 24820 states and 99601 transitions. [2022-03-01 16:22:33,028 INFO L78 Accepts]: Start accepts. Automaton has 24820 states and 99601 transitions. Word has length 117 [2022-03-01 16:22:33,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:33,030 INFO L470 AbstractCegarLoop]: Abstraction has 24820 states and 99601 transitions. [2022-03-01 16:22:33,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:33,030 INFO L276 IsEmpty]: Start isEmpty. Operand 24820 states and 99601 transitions. [2022-03-01 16:22:33,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:22:33,279 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:33,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:22:33,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-01 16:22:33,279 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:33,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:33,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1915392599, now seen corresponding path program 44 times [2022-03-01 16:22:33,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:33,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641676833] [2022-03-01 16:22:33,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:33,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:33,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:33,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:33,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641676833] [2022-03-01 16:22:33,908 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641676833] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:33,908 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:33,908 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:22:33,908 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793303542] [2022-03-01 16:22:33,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:33,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:22:33,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:33,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:22:33,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:22:33,909 INFO L87 Difference]: Start difference. First operand 24820 states and 99601 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:35,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:35,548 INFO L93 Difference]: Finished difference Result 56821 states and 224015 transitions. [2022-03-01 16:22:35,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:22:35,549 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:22:35,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:35,746 INFO L225 Difference]: With dead ends: 56821 [2022-03-01 16:22:35,746 INFO L226 Difference]: Without dead ends: 55294 [2022-03-01 16:22:35,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:22:35,747 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 670 mSDsluCounter, 2738 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:35,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [670 Valid, 2618 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:22:36,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55294 states. [2022-03-01 16:22:36,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55294 to 24280. [2022-03-01 16:22:36,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24280 states, 24279 states have (on average 4.016351579554347) internal successors, (97513), 24279 states have internal predecessors, (97513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:36,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24280 states to 24280 states and 97513 transitions. [2022-03-01 16:22:36,866 INFO L78 Accepts]: Start accepts. Automaton has 24280 states and 97513 transitions. Word has length 117 [2022-03-01 16:22:36,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:36,866 INFO L470 AbstractCegarLoop]: Abstraction has 24280 states and 97513 transitions. [2022-03-01 16:22:36,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:36,866 INFO L276 IsEmpty]: Start isEmpty. Operand 24280 states and 97513 transitions. [2022-03-01 16:22:36,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:22:36,915 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:36,915 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:22:36,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-01 16:22:36,916 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:36,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:36,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1164415243, now seen corresponding path program 45 times [2022-03-01 16:22:36,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:36,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547003792] [2022-03-01 16:22:36,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:36,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:37,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:37,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:37,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547003792] [2022-03-01 16:22:37,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547003792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:37,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:37,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:22:37,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160766413] [2022-03-01 16:22:37,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:37,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:22:37,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:37,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:22:37,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:22:37,666 INFO L87 Difference]: Start difference. First operand 24280 states and 97513 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:39,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:39,365 INFO L93 Difference]: Finished difference Result 58171 states and 228598 transitions. [2022-03-01 16:22:39,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:22:39,365 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:22:39,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:39,755 INFO L225 Difference]: With dead ends: 58171 [2022-03-01 16:22:39,756 INFO L226 Difference]: Without dead ends: 57577 [2022-03-01 16:22:39,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:22:39,756 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 752 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:39,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 2948 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:22:39,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57577 states. [2022-03-01 16:22:40,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57577 to 24496. [2022-03-01 16:22:40,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24496 states, 24495 states have (on average 4.01498264952031) internal successors, (98347), 24495 states have internal predecessors, (98347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:40,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24496 states to 24496 states and 98347 transitions. [2022-03-01 16:22:40,706 INFO L78 Accepts]: Start accepts. Automaton has 24496 states and 98347 transitions. Word has length 117 [2022-03-01 16:22:40,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:40,706 INFO L470 AbstractCegarLoop]: Abstraction has 24496 states and 98347 transitions. [2022-03-01 16:22:40,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:40,706 INFO L276 IsEmpty]: Start isEmpty. Operand 24496 states and 98347 transitions. [2022-03-01 16:22:40,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:22:40,757 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:40,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:22:40,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-01 16:22:40,757 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:40,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:40,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1797684437, now seen corresponding path program 46 times [2022-03-01 16:22:40,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:40,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110295072] [2022-03-01 16:22:40,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:40,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:41,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:41,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:41,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110295072] [2022-03-01 16:22:41,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110295072] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:41,625 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:41,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:22:41,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319649780] [2022-03-01 16:22:41,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:41,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:22:41,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:41,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:22:41,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:22:41,626 INFO L87 Difference]: Start difference. First operand 24496 states and 98347 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:43,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:43,394 INFO L93 Difference]: Finished difference Result 58159 states and 228523 transitions. [2022-03-01 16:22:43,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:22:43,395 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:22:43,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:43,642 INFO L225 Difference]: With dead ends: 58159 [2022-03-01 16:22:43,642 INFO L226 Difference]: Without dead ends: 57532 [2022-03-01 16:22:43,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:22:43,642 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 728 mSDsluCounter, 3129 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:43,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [728 Valid, 2948 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:22:43,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57532 states. [2022-03-01 16:22:44,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57532 to 24451. [2022-03-01 16:22:44,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24451 states, 24450 states have (on average 4.015010224948875) internal successors, (98167), 24450 states have internal predecessors, (98167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:44,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24451 states to 24451 states and 98167 transitions. [2022-03-01 16:22:44,603 INFO L78 Accepts]: Start accepts. Automaton has 24451 states and 98167 transitions. Word has length 117 [2022-03-01 16:22:44,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:44,603 INFO L470 AbstractCegarLoop]: Abstraction has 24451 states and 98167 transitions. [2022-03-01 16:22:44,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:44,603 INFO L276 IsEmpty]: Start isEmpty. Operand 24451 states and 98167 transitions. [2022-03-01 16:22:44,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:22:44,653 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:44,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:22:44,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-01 16:22:44,653 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:44,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:44,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1382901207, now seen corresponding path program 47 times [2022-03-01 16:22:44,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:44,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877119963] [2022-03-01 16:22:44,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:44,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:45,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:45,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:45,623 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877119963] [2022-03-01 16:22:45,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877119963] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:45,623 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:45,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:22:45,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051868421] [2022-03-01 16:22:45,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:45,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:22:45,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:45,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:22:45,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:22:45,624 INFO L87 Difference]: Start difference. First operand 24451 states and 98167 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:47,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:47,232 INFO L93 Difference]: Finished difference Result 58519 states and 229828 transitions. [2022-03-01 16:22:47,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:22:47,233 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:22:47,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:47,450 INFO L225 Difference]: With dead ends: 58519 [2022-03-01 16:22:47,450 INFO L226 Difference]: Without dead ends: 57397 [2022-03-01 16:22:47,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:22:47,451 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 778 mSDsluCounter, 3110 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 2932 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:47,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [778 Valid, 2932 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:22:47,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57397 states. [2022-03-01 16:22:48,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57397 to 24316. [2022-03-01 16:22:48,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.015463705531565) internal successors, (97636), 24315 states have internal predecessors, (97636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:48,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97636 transitions. [2022-03-01 16:22:48,563 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97636 transitions. Word has length 117 [2022-03-01 16:22:48,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:48,563 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97636 transitions. [2022-03-01 16:22:48,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:48,563 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97636 transitions. [2022-03-01 16:22:48,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:22:48,613 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:48,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:22:48,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-01 16:22:48,614 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:48,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:48,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1676162849, now seen corresponding path program 48 times [2022-03-01 16:22:48,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:48,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003134540] [2022-03-01 16:22:48,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:48,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:49,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:49,294 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:49,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003134540] [2022-03-01 16:22:49,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003134540] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:49,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:49,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:22:49,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691068434] [2022-03-01 16:22:49,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:49,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:22:49,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:49,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:22:49,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:22:49,295 INFO L87 Difference]: Start difference. First operand 24316 states and 97636 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:51,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:51,004 INFO L93 Difference]: Finished difference Result 58633 states and 230031 transitions. [2022-03-01 16:22:51,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:22:51,004 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:22:51,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:51,202 INFO L225 Difference]: With dead ends: 58633 [2022-03-01 16:22:51,202 INFO L226 Difference]: Without dead ends: 58039 [2022-03-01 16:22:51,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:22:51,203 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 811 mSDsluCounter, 3083 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 2907 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:51,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [811 Valid, 2907 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:22:51,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58039 states. [2022-03-01 16:22:52,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58039 to 24373. [2022-03-01 16:22:52,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24373 states, 24372 states have (on average 4.013786312161497) internal successors, (97824), 24372 states have internal predecessors, (97824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:52,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24373 states to 24373 states and 97824 transitions. [2022-03-01 16:22:52,336 INFO L78 Accepts]: Start accepts. Automaton has 24373 states and 97824 transitions. Word has length 117 [2022-03-01 16:22:52,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:52,336 INFO L470 AbstractCegarLoop]: Abstraction has 24373 states and 97824 transitions. [2022-03-01 16:22:52,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:52,336 INFO L276 IsEmpty]: Start isEmpty. Operand 24373 states and 97824 transitions. [2022-03-01 16:22:52,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:22:52,386 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:52,386 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:22:52,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-01 16:22:52,386 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:52,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:52,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1285936831, now seen corresponding path program 49 times [2022-03-01 16:22:52,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:52,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561076101] [2022-03-01 16:22:52,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:52,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:53,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:53,051 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:53,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561076101] [2022-03-01 16:22:53,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561076101] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:53,051 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:53,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:22:53,052 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164852704] [2022-03-01 16:22:53,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:53,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:22:53,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:53,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:22:53,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:22:53,052 INFO L87 Difference]: Start difference. First operand 24373 states and 97824 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:54,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:54,896 INFO L93 Difference]: Finished difference Result 58621 states and 229956 transitions. [2022-03-01 16:22:54,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:22:54,897 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:22:54,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:55,128 INFO L225 Difference]: With dead ends: 58621 [2022-03-01 16:22:55,128 INFO L226 Difference]: Without dead ends: 57994 [2022-03-01 16:22:55,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:22:55,132 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 841 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 2850 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:55,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [841 Valid, 2850 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:22:55,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57994 states. [2022-03-01 16:22:55,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57994 to 24328. [2022-03-01 16:22:56,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24328 states, 24327 states have (on average 4.015168331483537) internal successors, (97677), 24327 states have internal predecessors, (97677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:56,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24328 states to 24328 states and 97677 transitions. [2022-03-01 16:22:56,100 INFO L78 Accepts]: Start accepts. Automaton has 24328 states and 97677 transitions. Word has length 117 [2022-03-01 16:22:56,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:56,100 INFO L470 AbstractCegarLoop]: Abstraction has 24328 states and 97677 transitions. [2022-03-01 16:22:56,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:56,101 INFO L276 IsEmpty]: Start isEmpty. Operand 24328 states and 97677 transitions. [2022-03-01 16:22:56,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:22:56,149 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:56,149 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:22:56,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-01 16:22:56,150 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:56,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:56,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1057460619, now seen corresponding path program 50 times [2022-03-01 16:22:56,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:56,150 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205982963] [2022-03-01 16:22:56,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:56,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:22:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:22:56,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:22:56,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:22:56,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205982963] [2022-03-01 16:22:56,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205982963] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:22:56,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:22:56,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:22:56,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925902648] [2022-03-01 16:22:56,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:22:56,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:22:56,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:22:56,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:22:56,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:22:56,892 INFO L87 Difference]: Start difference. First operand 24328 states and 97677 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:58,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:22:58,590 INFO L93 Difference]: Finished difference Result 57856 states and 227382 transitions. [2022-03-01 16:22:58,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:22:58,591 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:22:58,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:22:58,824 INFO L225 Difference]: With dead ends: 57856 [2022-03-01 16:22:58,825 INFO L226 Difference]: Without dead ends: 57262 [2022-03-01 16:22:58,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:22:58,826 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 860 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 2819 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:22:58,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [860 Valid, 2819 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:22:58,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57262 states. [2022-03-01 16:22:59,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57262 to 24364. [2022-03-01 16:22:59,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.013791404999385) internal successors, (97788), 24363 states have internal predecessors, (97788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:59,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97788 transitions. [2022-03-01 16:22:59,751 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97788 transitions. Word has length 117 [2022-03-01 16:22:59,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:22:59,751 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97788 transitions. [2022-03-01 16:22:59,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:22:59,751 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97788 transitions. [2022-03-01 16:22:59,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:22:59,799 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:22:59,799 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] [2022-03-01 16:22:59,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-01 16:22:59,799 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:22:59,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:22:59,800 INFO L85 PathProgramCache]: Analyzing trace with hash 2117471713, now seen corresponding path program 51 times [2022-03-01 16:22:59,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:22:59,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916874340] [2022-03-01 16:22:59,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:22:59,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:00,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:00,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:00,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916874340] [2022-03-01 16:23:00,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916874340] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:00,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:00,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:23:00,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938907069] [2022-03-01 16:23:00,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:00,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:23:00,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:00,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:23:00,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:23:00,698 INFO L87 Difference]: Start difference. First operand 24364 states and 97788 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:02,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:02,302 INFO L93 Difference]: Finished difference Result 57367 states and 225789 transitions. [2022-03-01 16:23:02,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:23:02,302 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:23:02,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:02,518 INFO L225 Difference]: With dead ends: 57367 [2022-03-01 16:23:02,518 INFO L226 Difference]: Without dead ends: 56776 [2022-03-01 16:23:02,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:23:02,518 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 813 mSDsluCounter, 2896 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:02,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [813 Valid, 2747 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:23:02,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56776 states. [2022-03-01 16:23:03,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56776 to 24328. [2022-03-01 16:23:03,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24328 states, 24327 states have (on average 4.014675052410902) internal successors, (97665), 24327 states have internal predecessors, (97665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:03,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24328 states to 24328 states and 97665 transitions. [2022-03-01 16:23:03,637 INFO L78 Accepts]: Start accepts. Automaton has 24328 states and 97665 transitions. Word has length 117 [2022-03-01 16:23:03,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:03,638 INFO L470 AbstractCegarLoop]: Abstraction has 24328 states and 97665 transitions. [2022-03-01 16:23:03,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:03,638 INFO L276 IsEmpty]: Start isEmpty. Operand 24328 states and 97665 transitions. [2022-03-01 16:23:03,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:23:03,687 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:03,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:23:03,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-01 16:23:03,689 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:03,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:03,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1509636011, now seen corresponding path program 52 times [2022-03-01 16:23:03,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:03,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472498644] [2022-03-01 16:23:03,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:03,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:04,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:04,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:04,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472498644] [2022-03-01 16:23:04,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472498644] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:04,410 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:04,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:23:04,410 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890794751] [2022-03-01 16:23:04,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:04,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:23:04,410 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:04,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:23:04,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:23:04,411 INFO L87 Difference]: Start difference. First operand 24328 states and 97665 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:06,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:06,026 INFO L93 Difference]: Finished difference Result 57952 states and 227745 transitions. [2022-03-01 16:23:06,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:23:06,027 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:23:06,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:06,231 INFO L225 Difference]: With dead ends: 57952 [2022-03-01 16:23:06,231 INFO L226 Difference]: Without dead ends: 57370 [2022-03-01 16:23:06,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:23:06,232 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 778 mSDsluCounter, 3017 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 2843 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:06,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [778 Valid, 2843 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:23:06,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57370 states. [2022-03-01 16:23:07,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57370 to 24364. [2022-03-01 16:23:07,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.013298854820835) internal successors, (97776), 24363 states have internal predecessors, (97776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:07,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97776 transitions. [2022-03-01 16:23:07,255 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97776 transitions. Word has length 117 [2022-03-01 16:23:07,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:07,256 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97776 transitions. [2022-03-01 16:23:07,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:07,256 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97776 transitions. [2022-03-01 16:23:07,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:23:07,305 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:07,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:23:07,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-01 16:23:07,305 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:07,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:07,306 INFO L85 PathProgramCache]: Analyzing trace with hash -172890111, now seen corresponding path program 53 times [2022-03-01 16:23:07,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:07,307 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24881173] [2022-03-01 16:23:07,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:07,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:08,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:08,011 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:08,011 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24881173] [2022-03-01 16:23:08,011 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24881173] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:08,011 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:08,011 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:23:08,011 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798837767] [2022-03-01 16:23:08,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:08,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:23:08,012 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:08,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:23:08,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:23:08,012 INFO L87 Difference]: Start difference. First operand 24364 states and 97776 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:09,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:09,929 INFO L93 Difference]: Finished difference Result 57367 states and 225777 transitions. [2022-03-01 16:23:09,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:23:09,929 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:23:09,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:10,289 INFO L225 Difference]: With dead ends: 57367 [2022-03-01 16:23:10,289 INFO L226 Difference]: Without dead ends: 56764 [2022-03-01 16:23:10,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:23:10,290 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 656 mSDsluCounter, 3109 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:10,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [656 Valid, 2920 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:23:10,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56764 states. [2022-03-01 16:23:11,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56764 to 24316. [2022-03-01 16:23:11,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.0149701830146) internal successors, (97624), 24315 states have internal predecessors, (97624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:11,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97624 transitions. [2022-03-01 16:23:11,396 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97624 transitions. Word has length 117 [2022-03-01 16:23:11,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:11,396 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97624 transitions. [2022-03-01 16:23:11,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:11,397 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97624 transitions. [2022-03-01 16:23:11,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:23:11,445 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:11,445 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:23:11,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-01 16:23:11,445 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:11,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:11,446 INFO L85 PathProgramCache]: Analyzing trace with hash -619489025, now seen corresponding path program 54 times [2022-03-01 16:23:11,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:11,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126477727] [2022-03-01 16:23:11,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:11,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:12,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:12,083 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:12,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126477727] [2022-03-01 16:23:12,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126477727] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:12,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:12,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:23:12,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656359200] [2022-03-01 16:23:12,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:12,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:23:12,083 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:12,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:23:12,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:23:12,084 INFO L87 Difference]: Start difference. First operand 24316 states and 97624 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:13,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:13,745 INFO L93 Difference]: Finished difference Result 57202 states and 225163 transitions. [2022-03-01 16:23:13,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:23:13,745 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:23:13,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:14,114 INFO L225 Difference]: With dead ends: 57202 [2022-03-01 16:23:14,114 INFO L226 Difference]: Without dead ends: 56215 [2022-03-01 16:23:14,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:23:14,115 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 864 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:14,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [864 Valid, 2561 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:23:14,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56215 states. [2022-03-01 16:23:14,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56215 to 24424. [2022-03-01 16:23:14,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24424 states, 24423 states have (on average 4.010850427875363) internal successors, (97957), 24423 states have internal predecessors, (97957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:15,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24424 states to 24424 states and 97957 transitions. [2022-03-01 16:23:15,034 INFO L78 Accepts]: Start accepts. Automaton has 24424 states and 97957 transitions. Word has length 117 [2022-03-01 16:23:15,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:15,034 INFO L470 AbstractCegarLoop]: Abstraction has 24424 states and 97957 transitions. [2022-03-01 16:23:15,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:15,034 INFO L276 IsEmpty]: Start isEmpty. Operand 24424 states and 97957 transitions. [2022-03-01 16:23:15,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:23:15,084 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:15,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:23:15,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-01 16:23:15,085 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:15,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:15,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1988454359, now seen corresponding path program 55 times [2022-03-01 16:23:15,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:15,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663109317] [2022-03-01 16:23:15,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:15,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:15,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:15,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:15,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663109317] [2022-03-01 16:23:15,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663109317] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:15,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:15,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:23:15,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933032557] [2022-03-01 16:23:15,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:15,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:23:15,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:15,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:23:15,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:23:15,868 INFO L87 Difference]: Start difference. First operand 24424 states and 97957 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:17,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:17,616 INFO L93 Difference]: Finished difference Result 56806 states and 223627 transitions. [2022-03-01 16:23:17,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:23:17,617 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:23:17,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:17,832 INFO L225 Difference]: With dead ends: 56806 [2022-03-01 16:23:17,832 INFO L226 Difference]: Without dead ends: 56224 [2022-03-01 16:23:17,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:23:17,835 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 769 mSDsluCounter, 2950 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:17,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [769 Valid, 2791 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:23:17,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56224 states. [2022-03-01 16:23:18,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56224 to 24460. [2022-03-01 16:23:18,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24460 states, 24459 states have (on average 4.009485261049103) internal successors, (98068), 24459 states have internal predecessors, (98068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:18,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24460 states to 24460 states and 98068 transitions. [2022-03-01 16:23:18,837 INFO L78 Accepts]: Start accepts. Automaton has 24460 states and 98068 transitions. Word has length 117 [2022-03-01 16:23:18,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:18,837 INFO L470 AbstractCegarLoop]: Abstraction has 24460 states and 98068 transitions. [2022-03-01 16:23:18,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:18,837 INFO L276 IsEmpty]: Start isEmpty. Operand 24460 states and 98068 transitions. [2022-03-01 16:23:18,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:23:18,885 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:18,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:23:18,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-01 16:23:18,886 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:18,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:18,886 INFO L85 PathProgramCache]: Analyzing trace with hash 623986815, now seen corresponding path program 56 times [2022-03-01 16:23:18,886 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:18,886 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278893540] [2022-03-01 16:23:18,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:18,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:19,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:19,725 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:19,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278893540] [2022-03-01 16:23:19,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278893540] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:19,726 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:19,726 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:23:19,726 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515766420] [2022-03-01 16:23:19,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:19,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:23:19,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:19,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:23:19,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:23:19,727 INFO L87 Difference]: Start difference. First operand 24460 states and 98068 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:21,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:21,403 INFO L93 Difference]: Finished difference Result 56221 states and 221659 transitions. [2022-03-01 16:23:21,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:23:21,404 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:23:21,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:21,589 INFO L225 Difference]: With dead ends: 56221 [2022-03-01 16:23:21,589 INFO L226 Difference]: Without dead ends: 55486 [2022-03-01 16:23:21,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:23:21,589 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 641 mSDsluCounter, 2988 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 2818 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:21,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [641 Valid, 2818 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:23:21,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55486 states. [2022-03-01 16:23:22,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55486 to 24280. [2022-03-01 16:23:22,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24280 states, 24279 states have (on average 4.014868816672845) internal successors, (97477), 24279 states have internal predecessors, (97477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:22,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24280 states to 24280 states and 97477 transitions. [2022-03-01 16:23:22,492 INFO L78 Accepts]: Start accepts. Automaton has 24280 states and 97477 transitions. Word has length 117 [2022-03-01 16:23:22,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:22,492 INFO L470 AbstractCegarLoop]: Abstraction has 24280 states and 97477 transitions. [2022-03-01 16:23:22,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:22,492 INFO L276 IsEmpty]: Start isEmpty. Operand 24280 states and 97477 transitions. [2022-03-01 16:23:22,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:23:22,739 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:22,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:23:22,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-01 16:23:22,739 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:22,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:22,740 INFO L85 PathProgramCache]: Analyzing trace with hash 415560427, now seen corresponding path program 57 times [2022-03-01 16:23:22,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:22,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562349967] [2022-03-01 16:23:22,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:22,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:23,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:23,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:23,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562349967] [2022-03-01 16:23:23,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562349967] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:23,400 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:23,400 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:23:23,400 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172447902] [2022-03-01 16:23:23,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:23,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:23:23,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:23,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:23:23,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:23:23,401 INFO L87 Difference]: Start difference. First operand 24280 states and 97477 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:25,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:25,065 INFO L93 Difference]: Finished difference Result 58804 states and 230614 transitions. [2022-03-01 16:23:25,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:23:25,065 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:23:25,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:25,275 INFO L225 Difference]: With dead ends: 58804 [2022-03-01 16:23:25,275 INFO L226 Difference]: Without dead ends: 58210 [2022-03-01 16:23:25,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:23:25,276 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 822 mSDsluCounter, 3048 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:25,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [822 Valid, 2875 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:23:25,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58210 states. [2022-03-01 16:23:26,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58210 to 24496. [2022-03-01 16:23:26,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24496 states, 24495 states have (on average 4.013512961828945) internal successors, (98311), 24495 states have internal predecessors, (98311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:26,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24496 states to 24496 states and 98311 transitions. [2022-03-01 16:23:26,384 INFO L78 Accepts]: Start accepts. Automaton has 24496 states and 98311 transitions. Word has length 117 [2022-03-01 16:23:26,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:26,384 INFO L470 AbstractCegarLoop]: Abstraction has 24496 states and 98311 transitions. [2022-03-01 16:23:26,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:26,384 INFO L276 IsEmpty]: Start isEmpty. Operand 24496 states and 98311 transitions. [2022-03-01 16:23:26,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:23:26,433 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:26,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:23:26,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-01 16:23:26,437 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:26,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:26,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1748428043, now seen corresponding path program 58 times [2022-03-01 16:23:26,438 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:26,438 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586671415] [2022-03-01 16:23:26,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:26,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:27,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:27,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:27,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586671415] [2022-03-01 16:23:27,043 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586671415] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:27,043 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:27,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:23:27,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964176120] [2022-03-01 16:23:27,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:27,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:23:27,043 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:27,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:23:27,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:23:27,044 INFO L87 Difference]: Start difference. First operand 24496 states and 98311 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:28,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:28,630 INFO L93 Difference]: Finished difference Result 58207 states and 228607 transitions. [2022-03-01 16:23:28,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:23:28,630 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:23:28,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:28,991 INFO L225 Difference]: With dead ends: 58207 [2022-03-01 16:23:28,991 INFO L226 Difference]: Without dead ends: 57580 [2022-03-01 16:23:28,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:23:28,991 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 834 mSDsluCounter, 3049 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:28,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [834 Valid, 2885 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:23:29,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57580 states. [2022-03-01 16:23:29,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57580 to 24451. [2022-03-01 16:23:29,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24451 states, 24450 states have (on average 4.013537832310838) internal successors, (98131), 24450 states have internal predecessors, (98131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:29,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24451 states to 24451 states and 98131 transitions. [2022-03-01 16:23:29,914 INFO L78 Accepts]: Start accepts. Automaton has 24451 states and 98131 transitions. Word has length 117 [2022-03-01 16:23:29,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:29,914 INFO L470 AbstractCegarLoop]: Abstraction has 24451 states and 98131 transitions. [2022-03-01 16:23:29,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:29,915 INFO L276 IsEmpty]: Start isEmpty. Operand 24451 states and 98131 transitions. [2022-03-01 16:23:29,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:23:29,964 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:29,964 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] [2022-03-01 16:23:29,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-01 16:23:29,965 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:29,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:29,965 INFO L85 PathProgramCache]: Analyzing trace with hash -203069911, now seen corresponding path program 59 times [2022-03-01 16:23:29,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:29,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190512522] [2022-03-01 16:23:29,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:29,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:30,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:30,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:30,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190512522] [2022-03-01 16:23:30,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190512522] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:30,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:30,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:23:30,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703861048] [2022-03-01 16:23:30,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:30,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:23:30,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:30,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:23:30,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:23:30,900 INFO L87 Difference]: Start difference. First operand 24451 states and 98131 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:32,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:32,671 INFO L93 Difference]: Finished difference Result 58615 states and 230032 transitions. [2022-03-01 16:23:32,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:23:32,671 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:23:32,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:32,882 INFO L225 Difference]: With dead ends: 58615 [2022-03-01 16:23:32,882 INFO L226 Difference]: Without dead ends: 57445 [2022-03-01 16:23:32,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:23:32,883 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 897 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 2808 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:32,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [897 Valid, 2808 Invalid, 1321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:23:32,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57445 states. [2022-03-01 16:23:33,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57445 to 24316. [2022-03-01 16:23:33,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.01398313798067) internal successors, (97600), 24315 states have internal predecessors, (97600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:33,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97600 transitions. [2022-03-01 16:23:33,822 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97600 transitions. Word has length 117 [2022-03-01 16:23:33,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:33,822 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97600 transitions. [2022-03-01 16:23:33,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:33,823 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97600 transitions. [2022-03-01 16:23:33,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:23:33,872 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:33,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:23:33,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-01 16:23:33,872 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:33,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:33,873 INFO L85 PathProgramCache]: Analyzing trace with hash -604347135, now seen corresponding path program 60 times [2022-03-01 16:23:33,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:33,873 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216189926] [2022-03-01 16:23:33,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:33,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:34,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:34,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:34,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216189926] [2022-03-01 16:23:34,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216189926] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:34,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:34,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:23:34,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994105285] [2022-03-01 16:23:34,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:34,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:23:34,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:34,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:23:34,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:23:34,698 INFO L87 Difference]: Start difference. First operand 24316 states and 97600 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:36,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:36,374 INFO L93 Difference]: Finished difference Result 58681 states and 230115 transitions. [2022-03-01 16:23:36,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:23:36,374 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:23:36,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:36,591 INFO L225 Difference]: With dead ends: 58681 [2022-03-01 16:23:36,591 INFO L226 Difference]: Without dead ends: 58087 [2022-03-01 16:23:36,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:23:36,592 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 828 mSDsluCounter, 3069 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 2899 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:36,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [828 Valid, 2899 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:23:36,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58087 states. [2022-03-01 16:23:37,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58087 to 24373. [2022-03-01 16:23:37,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24373 states, 24372 states have (on average 4.012309207287051) internal successors, (97788), 24372 states have internal predecessors, (97788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:37,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24373 states to 24373 states and 97788 transitions. [2022-03-01 16:23:37,841 INFO L78 Accepts]: Start accepts. Automaton has 24373 states and 97788 transitions. Word has length 117 [2022-03-01 16:23:37,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:37,841 INFO L470 AbstractCegarLoop]: Abstraction has 24373 states and 97788 transitions. [2022-03-01 16:23:37,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:37,841 INFO L276 IsEmpty]: Start isEmpty. Operand 24373 states and 97788 transitions. [2022-03-01 16:23:37,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:23:37,893 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:37,893 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:23:37,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-01 16:23:37,893 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:37,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:37,893 INFO L85 PathProgramCache]: Analyzing trace with hash 728520481, now seen corresponding path program 61 times [2022-03-01 16:23:37,894 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:37,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378704337] [2022-03-01 16:23:37,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:37,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:38,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:38,419 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:38,419 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378704337] [2022-03-01 16:23:38,419 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378704337] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:38,419 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:38,419 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:23:38,419 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340193053] [2022-03-01 16:23:38,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:38,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:23:38,419 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:38,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:23:38,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:23:38,420 INFO L87 Difference]: Start difference. First operand 24373 states and 97788 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:40,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:40,189 INFO L93 Difference]: Finished difference Result 58669 states and 230040 transitions. [2022-03-01 16:23:40,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:23:40,189 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:23:40,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:40,382 INFO L225 Difference]: With dead ends: 58669 [2022-03-01 16:23:40,382 INFO L226 Difference]: Without dead ends: 58042 [2022-03-01 16:23:40,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:23:40,383 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 832 mSDsluCounter, 3056 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:40,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [832 Valid, 2891 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:23:40,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58042 states. [2022-03-01 16:23:41,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58042 to 24328. [2022-03-01 16:23:41,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24328 states, 24327 states have (on average 4.01368849426563) internal successors, (97641), 24327 states have internal predecessors, (97641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:41,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24328 states to 24328 states and 97641 transitions. [2022-03-01 16:23:41,481 INFO L78 Accepts]: Start accepts. Automaton has 24328 states and 97641 transitions. Word has length 117 [2022-03-01 16:23:41,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:41,482 INFO L470 AbstractCegarLoop]: Abstraction has 24328 states and 97641 transitions. [2022-03-01 16:23:41,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:41,482 INFO L276 IsEmpty]: Start isEmpty. Operand 24328 states and 97641 transitions. [2022-03-01 16:23:41,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:23:41,529 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:41,529 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] [2022-03-01 16:23:41,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-01 16:23:41,529 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:41,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:41,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1223049365, now seen corresponding path program 62 times [2022-03-01 16:23:41,530 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:41,530 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762914572] [2022-03-01 16:23:41,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:41,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:42,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:42,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:42,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762914572] [2022-03-01 16:23:42,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762914572] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:42,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:42,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:23:42,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969205793] [2022-03-01 16:23:42,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:42,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:23:42,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:42,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:23:42,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:23:42,293 INFO L87 Difference]: Start difference. First operand 24328 states and 97641 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:44,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:44,108 INFO L93 Difference]: Finished difference Result 58633 states and 229950 transitions. [2022-03-01 16:23:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:23:44,108 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:23:44,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:44,335 INFO L225 Difference]: With dead ends: 58633 [2022-03-01 16:23:44,335 INFO L226 Difference]: Without dead ends: 58039 [2022-03-01 16:23:44,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:23:44,335 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 859 mSDsluCounter, 3024 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 2855 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:44,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [859 Valid, 2855 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:23:44,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58039 states. [2022-03-01 16:23:45,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58039 to 24364. [2022-03-01 16:23:45,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.012313754463736) internal successors, (97752), 24363 states have internal predecessors, (97752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:45,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97752 transitions. [2022-03-01 16:23:45,306 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97752 transitions. Word has length 117 [2022-03-01 16:23:45,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:45,306 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97752 transitions. [2022-03-01 16:23:45,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:45,306 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97752 transitions. [2022-03-01 16:23:45,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:23:45,353 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:45,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:23:45,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-01 16:23:45,354 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:45,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:45,354 INFO L85 PathProgramCache]: Analyzing trace with hash -163038271, now seen corresponding path program 63 times [2022-03-01 16:23:45,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:45,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278390283] [2022-03-01 16:23:45,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:45,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:46,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:46,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:46,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278390283] [2022-03-01 16:23:46,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278390283] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:46,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:46,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:23:46,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247252232] [2022-03-01 16:23:46,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:46,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:23:46,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:46,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:23:46,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:23:46,202 INFO L87 Difference]: Start difference. First operand 24364 states and 97752 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:47,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:47,714 INFO L93 Difference]: Finished difference Result 58144 states and 228357 transitions. [2022-03-01 16:23:47,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:23:47,715 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:23:47,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:47,919 INFO L225 Difference]: With dead ends: 58144 [2022-03-01 16:23:47,919 INFO L226 Difference]: Without dead ends: 57553 [2022-03-01 16:23:47,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:23:47,919 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 691 mSDsluCounter, 3182 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 2991 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:47,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [691 Valid, 2991 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:23:48,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57553 states. [2022-03-01 16:23:48,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57553 to 24328. [2022-03-01 16:23:48,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24328 states, 24327 states have (on average 4.0131952151929955) internal successors, (97629), 24327 states have internal predecessors, (97629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:48,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24328 states to 24328 states and 97629 transitions. [2022-03-01 16:23:48,799 INFO L78 Accepts]: Start accepts. Automaton has 24328 states and 97629 transitions. Word has length 117 [2022-03-01 16:23:48,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:48,799 INFO L470 AbstractCegarLoop]: Abstraction has 24328 states and 97629 transitions. [2022-03-01 16:23:48,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:48,799 INFO L276 IsEmpty]: Start isEmpty. Operand 24328 states and 97629 transitions. [2022-03-01 16:23:48,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:23:48,847 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:48,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:23:48,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-01 16:23:48,847 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:48,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:48,847 INFO L85 PathProgramCache]: Analyzing trace with hash -770873973, now seen corresponding path program 64 times [2022-03-01 16:23:48,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:48,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064063680] [2022-03-01 16:23:48,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:48,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:49,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:49,740 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:49,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064063680] [2022-03-01 16:23:49,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064063680] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:49,740 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:49,740 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:23:49,740 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369037554] [2022-03-01 16:23:49,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:49,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:23:49,740 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:49,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:23:49,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:23:49,743 INFO L87 Difference]: Start difference. First operand 24328 states and 97629 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:51,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:51,345 INFO L93 Difference]: Finished difference Result 57892 states and 227424 transitions. [2022-03-01 16:23:51,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:23:51,345 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:23:51,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:51,539 INFO L225 Difference]: With dead ends: 57892 [2022-03-01 16:23:51,539 INFO L226 Difference]: Without dead ends: 57310 [2022-03-01 16:23:51,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:23:51,540 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 954 mSDsluCounter, 2637 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 2533 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:51,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [954 Valid, 2533 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:23:51,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57310 states. [2022-03-01 16:23:52,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57310 to 24364. [2022-03-01 16:23:52,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.011821204285186) internal successors, (97740), 24363 states have internal predecessors, (97740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:52,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97740 transitions. [2022-03-01 16:23:52,670 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97740 transitions. Word has length 117 [2022-03-01 16:23:52,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:52,670 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97740 transitions. [2022-03-01 16:23:52,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:52,670 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97740 transitions. [2022-03-01 16:23:52,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:23:52,719 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:52,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:23:52,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-01 16:23:52,719 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:52,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:52,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1841567201, now seen corresponding path program 65 times [2022-03-01 16:23:52,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:52,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932646175] [2022-03-01 16:23:52,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:52,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:53,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:53,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:53,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932646175] [2022-03-01 16:23:53,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932646175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:53,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:53,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:23:53,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12906735] [2022-03-01 16:23:53,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:53,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:23:53,316 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:53,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:23:53,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:23:53,317 INFO L87 Difference]: Start difference. First operand 24364 states and 97740 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:55,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:55,032 INFO L93 Difference]: Finished difference Result 57415 states and 225861 transitions. [2022-03-01 16:23:55,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:23:55,033 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:23:55,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:55,237 INFO L225 Difference]: With dead ends: 57415 [2022-03-01 16:23:55,237 INFO L226 Difference]: Without dead ends: 56812 [2022-03-01 16:23:55,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=486, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:23:55,238 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 644 mSDsluCounter, 3169 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 2978 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:55,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [644 Valid, 2978 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:23:55,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56812 states. [2022-03-01 16:23:56,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56812 to 24316. [2022-03-01 16:23:56,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.013489615463706) internal successors, (97588), 24315 states have internal predecessors, (97588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:56,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97588 transitions. [2022-03-01 16:23:56,646 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97588 transitions. Word has length 117 [2022-03-01 16:23:56,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:23:56,647 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97588 transitions. [2022-03-01 16:23:56,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:56,648 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97588 transitions. [2022-03-01 16:23:56,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:23:56,699 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:23:56,699 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] [2022-03-01 16:23:56,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-01 16:23:56,700 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:23:56,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:23:56,701 INFO L85 PathProgramCache]: Analyzing trace with hash 2091997439, now seen corresponding path program 66 times [2022-03-01 16:23:56,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:23:56,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084075601] [2022-03-01 16:23:56,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:23:56,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:23:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:23:57,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:23:57,424 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:23:57,424 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084075601] [2022-03-01 16:23:57,424 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084075601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:23:57,424 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:23:57,424 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:23:57,424 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737304634] [2022-03-01 16:23:57,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:23:57,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:23:57,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:23:57,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:23:57,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:23:57,425 INFO L87 Difference]: Start difference. First operand 24316 states and 97588 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:23:59,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:23:59,029 INFO L93 Difference]: Finished difference Result 57262 states and 225277 transitions. [2022-03-01 16:23:59,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:23:59,029 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:23:59,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:23:59,391 INFO L225 Difference]: With dead ends: 57262 [2022-03-01 16:23:59,391 INFO L226 Difference]: Without dead ends: 56227 [2022-03-01 16:23:59,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:23:59,393 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 673 mSDsluCounter, 3112 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 2934 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:23:59,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [673 Valid, 2934 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:23:59,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56227 states. [2022-03-01 16:24:00,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56227 to 24424. [2022-03-01 16:24:00,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24424 states, 24423 states have (on average 4.009376407484748) internal successors, (97921), 24423 states have internal predecessors, (97921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:00,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24424 states to 24424 states and 97921 transitions. [2022-03-01 16:24:00,308 INFO L78 Accepts]: Start accepts. Automaton has 24424 states and 97921 transitions. Word has length 117 [2022-03-01 16:24:00,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:00,308 INFO L470 AbstractCegarLoop]: Abstraction has 24424 states and 97921 transitions. [2022-03-01 16:24:00,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:00,308 INFO L276 IsEmpty]: Start isEmpty. Operand 24424 states and 97921 transitions. [2022-03-01 16:24:00,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:24:00,355 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:00,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:24:00,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-01 16:24:00,355 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:00,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:00,355 INFO L85 PathProgramCache]: Analyzing trace with hash -157660119, now seen corresponding path program 67 times [2022-03-01 16:24:00,356 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:00,356 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246241231] [2022-03-01 16:24:00,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:00,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:00,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:00,933 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:00,933 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246241231] [2022-03-01 16:24:00,933 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246241231] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:00,933 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:00,933 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:24:00,933 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136823567] [2022-03-01 16:24:00,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:00,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:24:00,933 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:00,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:24:00,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:24:00,934 INFO L87 Difference]: Start difference. First operand 24424 states and 97921 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:02,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:02,434 INFO L93 Difference]: Finished difference Result 56818 states and 223621 transitions. [2022-03-01 16:24:02,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:24:02,434 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:24:02,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:02,823 INFO L225 Difference]: With dead ends: 56818 [2022-03-01 16:24:02,823 INFO L226 Difference]: Without dead ends: 56224 [2022-03-01 16:24:02,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:24:02,824 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 746 mSDsluCounter, 2776 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 2646 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:02,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [746 Valid, 2646 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:24:02,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56224 states. [2022-03-01 16:24:03,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56224 to 24460. [2022-03-01 16:24:03,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24460 states, 24459 states have (on average 4.008013410196655) internal successors, (98032), 24459 states have internal predecessors, (98032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:03,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24460 states to 24460 states and 98032 transitions. [2022-03-01 16:24:03,744 INFO L78 Accepts]: Start accepts. Automaton has 24460 states and 98032 transitions. Word has length 117 [2022-03-01 16:24:03,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:03,744 INFO L470 AbstractCegarLoop]: Abstraction has 24460 states and 98032 transitions. [2022-03-01 16:24:03,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:03,744 INFO L276 IsEmpty]: Start isEmpty. Operand 24460 states and 98032 transitions. [2022-03-01 16:24:03,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:24:03,791 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:03,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:24:03,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-01 16:24:03,791 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:03,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:03,791 INFO L85 PathProgramCache]: Analyzing trace with hash 902350975, now seen corresponding path program 68 times [2022-03-01 16:24:03,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:03,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24668281] [2022-03-01 16:24:03,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:03,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:04,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:04,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:04,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24668281] [2022-03-01 16:24:04,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24668281] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:04,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:04,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:24:04,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520782452] [2022-03-01 16:24:04,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:04,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:24:04,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:04,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:24:04,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:24:04,545 INFO L87 Difference]: Start difference. First operand 24460 states and 98032 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:06,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:06,129 INFO L93 Difference]: Finished difference Result 56221 states and 221623 transitions. [2022-03-01 16:24:06,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:24:06,130 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:24:06,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:06,335 INFO L225 Difference]: With dead ends: 56221 [2022-03-01 16:24:06,335 INFO L226 Difference]: Without dead ends: 55378 [2022-03-01 16:24:06,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:24:06,335 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 648 mSDsluCounter, 3027 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 2863 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:06,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [648 Valid, 2863 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:24:06,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55378 states. [2022-03-01 16:24:07,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55378 to 24172. [2022-03-01 16:24:07,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24172 states, 24171 states have (on average 4.014562905961689) internal successors, (97036), 24171 states have internal predecessors, (97036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:07,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24172 states to 24172 states and 97036 transitions. [2022-03-01 16:24:07,223 INFO L78 Accepts]: Start accepts. Automaton has 24172 states and 97036 transitions. Word has length 117 [2022-03-01 16:24:07,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:07,224 INFO L470 AbstractCegarLoop]: Abstraction has 24172 states and 97036 transitions. [2022-03-01 16:24:07,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:07,224 INFO L276 IsEmpty]: Start isEmpty. Operand 24172 states and 97036 transitions. [2022-03-01 16:24:07,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:24:07,271 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:07,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:24:07,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-01 16:24:07,272 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:07,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:07,272 INFO L85 PathProgramCache]: Analyzing trace with hash 62850121, now seen corresponding path program 69 times [2022-03-01 16:24:07,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:07,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099049038] [2022-03-01 16:24:07,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:07,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:08,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:08,021 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:08,021 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099049038] [2022-03-01 16:24:08,021 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099049038] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:08,021 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:08,021 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:24:08,021 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589843274] [2022-03-01 16:24:08,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:08,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:24:08,021 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:08,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:24:08,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:24:08,022 INFO L87 Difference]: Start difference. First operand 24172 states and 97036 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:09,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:09,682 INFO L93 Difference]: Finished difference Result 57733 states and 227399 transitions. [2022-03-01 16:24:09,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:24:09,682 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:24:09,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:09,879 INFO L225 Difference]: With dead ends: 57733 [2022-03-01 16:24:09,879 INFO L226 Difference]: Without dead ends: 57139 [2022-03-01 16:24:09,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:24:09,892 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 677 mSDsluCounter, 3223 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 3034 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:09,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [677 Valid, 3034 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:24:10,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57139 states. [2022-03-01 16:24:10,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57139 to 24484. [2022-03-01 16:24:10,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24484 states, 24483 states have (on average 4.01429563370502) internal successors, (98282), 24483 states have internal predecessors, (98282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:11,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24484 states to 24484 states and 98282 transitions. [2022-03-01 16:24:11,100 INFO L78 Accepts]: Start accepts. Automaton has 24484 states and 98282 transitions. Word has length 117 [2022-03-01 16:24:11,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:11,101 INFO L470 AbstractCegarLoop]: Abstraction has 24484 states and 98282 transitions. [2022-03-01 16:24:11,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:11,101 INFO L276 IsEmpty]: Start isEmpty. Operand 24484 states and 98282 transitions. [2022-03-01 16:24:11,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:24:11,159 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:11,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:24:11,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-01 16:24:11,160 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:11,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:11,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1395717737, now seen corresponding path program 70 times [2022-03-01 16:24:11,160 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:11,160 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532520502] [2022-03-01 16:24:11,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:11,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:11,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:11,781 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:11,781 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532520502] [2022-03-01 16:24:11,781 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532520502] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:11,781 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:11,781 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:24:11,782 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156817002] [2022-03-01 16:24:11,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:11,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:24:11,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:11,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:24:11,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:24:11,783 INFO L87 Difference]: Start difference. First operand 24484 states and 98282 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:13,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:13,478 INFO L93 Difference]: Finished difference Result 57721 states and 227324 transitions. [2022-03-01 16:24:13,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:24:13,479 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:24:13,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:13,675 INFO L225 Difference]: With dead ends: 57721 [2022-03-01 16:24:13,675 INFO L226 Difference]: Without dead ends: 57094 [2022-03-01 16:24:13,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:24:13,675 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 715 mSDsluCounter, 3001 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 2843 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:13,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [715 Valid, 2843 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:24:13,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57094 states. [2022-03-01 16:24:14,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57094 to 24439. [2022-03-01 16:24:14,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24439 states, 24438 states have (on average 4.014321957607005) internal successors, (98102), 24438 states have internal predecessors, (98102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:14,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24439 states to 24439 states and 98102 transitions. [2022-03-01 16:24:14,793 INFO L78 Accepts]: Start accepts. Automaton has 24439 states and 98102 transitions. Word has length 117 [2022-03-01 16:24:14,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:14,793 INFO L470 AbstractCegarLoop]: Abstraction has 24439 states and 98102 transitions. [2022-03-01 16:24:14,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:14,793 INFO L276 IsEmpty]: Start isEmpty. Operand 24439 states and 98102 transitions. [2022-03-01 16:24:14,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:24:14,844 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:14,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:24:14,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-01 16:24:14,844 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:14,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:14,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1810500967, now seen corresponding path program 71 times [2022-03-01 16:24:14,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:14,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344401746] [2022-03-01 16:24:14,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:14,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:15,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:15,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:15,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344401746] [2022-03-01 16:24:15,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344401746] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:15,491 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:15,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:24:15,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629266837] [2022-03-01 16:24:15,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:15,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:24:15,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:15,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:24:15,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:24:15,492 INFO L87 Difference]: Start difference. First operand 24439 states and 98102 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:17,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:17,175 INFO L93 Difference]: Finished difference Result 58081 states and 228629 transitions. [2022-03-01 16:24:17,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:24:17,176 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:24:17,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:17,577 INFO L225 Difference]: With dead ends: 58081 [2022-03-01 16:24:17,577 INFO L226 Difference]: Without dead ends: 56959 [2022-03-01 16:24:17,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:24:17,577 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 698 mSDsluCounter, 3118 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 2937 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:17,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [698 Valid, 2937 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:24:17,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56959 states. [2022-03-01 16:24:18,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56959 to 24304. [2022-03-01 16:24:18,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24304 states, 24303 states have (on average 4.014771838867629) internal successors, (97571), 24303 states have internal predecessors, (97571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:18,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24304 states to 24304 states and 97571 transitions. [2022-03-01 16:24:18,552 INFO L78 Accepts]: Start accepts. Automaton has 24304 states and 97571 transitions. Word has length 117 [2022-03-01 16:24:18,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:18,552 INFO L470 AbstractCegarLoop]: Abstraction has 24304 states and 97571 transitions. [2022-03-01 16:24:18,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:18,552 INFO L276 IsEmpty]: Start isEmpty. Operand 24304 states and 97571 transitions. [2022-03-01 16:24:18,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:24:18,601 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:18,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:24:18,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-01 16:24:18,602 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:18,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:18,602 INFO L85 PathProgramCache]: Analyzing trace with hash 574597727, now seen corresponding path program 72 times [2022-03-01 16:24:18,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:18,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953004423] [2022-03-01 16:24:18,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:18,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:19,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:19,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:19,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953004423] [2022-03-01 16:24:19,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953004423] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:19,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:19,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:24:19,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402421136] [2022-03-01 16:24:19,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:19,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:24:19,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:19,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:24:19,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:24:19,456 INFO L87 Difference]: Start difference. First operand 24304 states and 97571 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:20,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:20,952 INFO L93 Difference]: Finished difference Result 58972 states and 231469 transitions. [2022-03-01 16:24:20,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:24:20,952 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:24:20,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:21,184 INFO L225 Difference]: With dead ends: 58972 [2022-03-01 16:24:21,184 INFO L226 Difference]: Without dead ends: 58378 [2022-03-01 16:24:21,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:24:21,185 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 762 mSDsluCounter, 3216 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:21,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [762 Valid, 3025 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:24:21,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58378 states. [2022-03-01 16:24:22,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58378 to 24361. [2022-03-01 16:24:22,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24361 states, 24360 states have (on average 4.0130952380952385) internal successors, (97759), 24360 states have internal predecessors, (97759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:22,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24361 states to 24361 states and 97759 transitions. [2022-03-01 16:24:22,125 INFO L78 Accepts]: Start accepts. Automaton has 24361 states and 97759 transitions. Word has length 117 [2022-03-01 16:24:22,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:22,126 INFO L470 AbstractCegarLoop]: Abstraction has 24361 states and 97759 transitions. [2022-03-01 16:24:22,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:22,126 INFO L276 IsEmpty]: Start isEmpty. Operand 24361 states and 97759 transitions. [2022-03-01 16:24:22,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:24:22,174 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:22,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:24:22,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-01 16:24:22,174 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:22,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:22,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1907465343, now seen corresponding path program 73 times [2022-03-01 16:24:22,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:22,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141589172] [2022-03-01 16:24:22,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:22,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:23,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:23,066 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:23,066 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141589172] [2022-03-01 16:24:23,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141589172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:23,066 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:23,066 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:24:23,066 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812388181] [2022-03-01 16:24:23,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:23,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:24:23,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:23,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:24:23,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:24:23,067 INFO L87 Difference]: Start difference. First operand 24361 states and 97759 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:24,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:24,718 INFO L93 Difference]: Finished difference Result 58960 states and 231394 transitions. [2022-03-01 16:24:24,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:24:24,718 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:24:24,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:24,923 INFO L225 Difference]: With dead ends: 58960 [2022-03-01 16:24:24,923 INFO L226 Difference]: Without dead ends: 58333 [2022-03-01 16:24:24,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:24:24,923 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 815 mSDsluCounter, 3112 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 2933 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:24,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [815 Valid, 2933 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:24:25,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58333 states. [2022-03-01 16:24:25,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58333 to 24316. [2022-03-01 16:24:25,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.014476660497635) internal successors, (97612), 24315 states have internal predecessors, (97612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:26,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97612 transitions. [2022-03-01 16:24:26,038 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97612 transitions. Word has length 117 [2022-03-01 16:24:26,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:26,038 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97612 transitions. [2022-03-01 16:24:26,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:26,038 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97612 transitions. [2022-03-01 16:24:26,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:24:26,089 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:26,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:24:26,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-01 16:24:26,089 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:26,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:26,089 INFO L85 PathProgramCache]: Analyzing trace with hash -44104503, now seen corresponding path program 74 times [2022-03-01 16:24:26,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:26,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077117844] [2022-03-01 16:24:26,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:26,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:26,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:26,783 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:26,783 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077117844] [2022-03-01 16:24:26,783 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077117844] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:26,783 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:26,783 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:24:26,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075644764] [2022-03-01 16:24:26,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:26,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:24:26,784 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:26,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:24:26,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:24:26,784 INFO L87 Difference]: Start difference. First operand 24316 states and 97612 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:28,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:28,401 INFO L93 Difference]: Finished difference Result 58195 states and 228820 transitions. [2022-03-01 16:24:28,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:24:28,402 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:24:28,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:28,608 INFO L225 Difference]: With dead ends: 58195 [2022-03-01 16:24:28,608 INFO L226 Difference]: Without dead ends: 57601 [2022-03-01 16:24:28,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:24:28,610 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 831 mSDsluCounter, 2944 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 2789 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:28,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [831 Valid, 2789 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:24:28,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57601 states. [2022-03-01 16:24:29,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57601 to 24352. [2022-03-01 16:24:29,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24352 states, 24351 states have (on average 4.013100078025543) internal successors, (97723), 24351 states have internal predecessors, (97723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:29,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24352 states to 24352 states and 97723 transitions. [2022-03-01 16:24:29,734 INFO L78 Accepts]: Start accepts. Automaton has 24352 states and 97723 transitions. Word has length 117 [2022-03-01 16:24:29,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:29,734 INFO L470 AbstractCegarLoop]: Abstraction has 24352 states and 97723 transitions. [2022-03-01 16:24:29,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:29,734 INFO L276 IsEmpty]: Start isEmpty. Operand 24352 states and 97723 transitions. [2022-03-01 16:24:29,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:24:29,785 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:29,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:24:29,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-01 16:24:29,785 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:29,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:29,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1015906591, now seen corresponding path program 75 times [2022-03-01 16:24:29,785 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:29,786 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953573219] [2022-03-01 16:24:29,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:29,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:30,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:30,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:30,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953573219] [2022-03-01 16:24:30,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953573219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:30,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:30,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:24:30,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437408416] [2022-03-01 16:24:30,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:30,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:24:30,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:30,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:24:30,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:24:30,382 INFO L87 Difference]: Start difference. First operand 24352 states and 97723 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:32,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:32,067 INFO L93 Difference]: Finished difference Result 57706 states and 227227 transitions. [2022-03-01 16:24:32,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:24:32,068 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:24:32,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:32,433 INFO L225 Difference]: With dead ends: 57706 [2022-03-01 16:24:32,434 INFO L226 Difference]: Without dead ends: 57115 [2022-03-01 16:24:32,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:24:32,434 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 722 mSDsluCounter, 2935 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 2786 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:32,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [722 Valid, 2786 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1234 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:24:32,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57115 states. [2022-03-01 16:24:33,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57115 to 24316. [2022-03-01 16:24:33,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24315 states have (on average 4.01398313798067) internal successors, (97600), 24315 states have internal predecessors, (97600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:33,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 97600 transitions. [2022-03-01 16:24:33,359 INFO L78 Accepts]: Start accepts. Automaton has 24316 states and 97600 transitions. Word has length 117 [2022-03-01 16:24:33,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:33,359 INFO L470 AbstractCegarLoop]: Abstraction has 24316 states and 97600 transitions. [2022-03-01 16:24:33,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:33,359 INFO L276 IsEmpty]: Start isEmpty. Operand 24316 states and 97600 transitions. [2022-03-01 16:24:33,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:24:33,406 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:33,406 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:24:33,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-01 16:24:33,406 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:33,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:33,406 INFO L85 PathProgramCache]: Analyzing trace with hash 408070889, now seen corresponding path program 76 times [2022-03-01 16:24:33,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:33,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727440582] [2022-03-01 16:24:33,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:33,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:34,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:34,226 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:34,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727440582] [2022-03-01 16:24:34,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727440582] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:34,226 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:34,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:24:34,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590606723] [2022-03-01 16:24:34,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:34,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:24:34,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:34,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:24:34,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:24:34,227 INFO L87 Difference]: Start difference. First operand 24316 states and 97600 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:35,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:35,887 INFO L93 Difference]: Finished difference Result 58291 states and 229183 transitions. [2022-03-01 16:24:35,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:24:35,887 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:24:35,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:36,109 INFO L225 Difference]: With dead ends: 58291 [2022-03-01 16:24:36,109 INFO L226 Difference]: Without dead ends: 57709 [2022-03-01 16:24:36,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:24:36,118 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 701 mSDsluCounter, 3043 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:36,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [701 Valid, 2868 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1322 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:24:36,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57709 states. [2022-03-01 16:24:36,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57709 to 24352. [2022-03-01 16:24:36,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24352 states, 24351 states have (on average 4.012607285121761) internal successors, (97711), 24351 states have internal predecessors, (97711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:37,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24352 states to 24352 states and 97711 transitions. [2022-03-01 16:24:37,063 INFO L78 Accepts]: Start accepts. Automaton has 24352 states and 97711 transitions. Word has length 117 [2022-03-01 16:24:37,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:37,064 INFO L470 AbstractCegarLoop]: Abstraction has 24352 states and 97711 transitions. [2022-03-01 16:24:37,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:37,064 INFO L276 IsEmpty]: Start isEmpty. Operand 24352 states and 97711 transitions. [2022-03-01 16:24:37,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:24:37,111 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:37,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:24:37,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-01 16:24:37,111 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:37,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:37,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1274455233, now seen corresponding path program 77 times [2022-03-01 16:24:37,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:37,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463098903] [2022-03-01 16:24:37,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:37,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:37,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:37,966 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:37,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463098903] [2022-03-01 16:24:37,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463098903] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:37,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:37,966 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:24:37,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028380526] [2022-03-01 16:24:37,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:37,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:24:37,966 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:37,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:24:37,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:24:37,967 INFO L87 Difference]: Start difference. First operand 24352 states and 97711 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:39,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:39,812 INFO L93 Difference]: Finished difference Result 57706 states and 227215 transitions. [2022-03-01 16:24:39,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:24:39,812 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:24:39,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:40,199 INFO L225 Difference]: With dead ends: 57706 [2022-03-01 16:24:40,199 INFO L226 Difference]: Without dead ends: 57103 [2022-03-01 16:24:40,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:24:40,200 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 671 mSDsluCounter, 2950 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 2792 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:40,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [671 Valid, 2792 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:24:40,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57103 states. [2022-03-01 16:24:41,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57103 to 24304. [2022-03-01 16:24:41,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24304 states, 24303 states have (on average 4.014278072665926) internal successors, (97559), 24303 states have internal predecessors, (97559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:41,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24304 states to 24304 states and 97559 transitions. [2022-03-01 16:24:41,240 INFO L78 Accepts]: Start accepts. Automaton has 24304 states and 97559 transitions. Word has length 117 [2022-03-01 16:24:41,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:41,240 INFO L470 AbstractCegarLoop]: Abstraction has 24304 states and 97559 transitions. [2022-03-01 16:24:41,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:41,241 INFO L276 IsEmpty]: Start isEmpty. Operand 24304 states and 97559 transitions. [2022-03-01 16:24:41,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:24:41,290 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:41,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:24:41,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-01 16:24:41,290 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:41,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:41,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1721054147, now seen corresponding path program 78 times [2022-03-01 16:24:41,291 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:41,291 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763674209] [2022-03-01 16:24:41,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:41,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:42,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:42,026 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:42,026 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763674209] [2022-03-01 16:24:42,026 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763674209] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:42,026 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:42,026 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:24:42,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260415453] [2022-03-01 16:24:42,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:42,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:24:42,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:42,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:24:42,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:24:42,027 INFO L87 Difference]: Start difference. First operand 24304 states and 97559 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:43,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:43,720 INFO L93 Difference]: Finished difference Result 58783 states and 231011 transitions. [2022-03-01 16:24:43,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:24:43,720 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:24:43,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:43,932 INFO L225 Difference]: With dead ends: 58783 [2022-03-01 16:24:43,932 INFO L226 Difference]: Without dead ends: 57796 [2022-03-01 16:24:43,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:24:43,933 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 752 mSDsluCounter, 3134 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 2940 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:43,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 2940 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:24:44,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57796 states. [2022-03-01 16:24:44,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57796 to 24412. [2022-03-01 16:24:44,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24412 states, 24411 states have (on average 4.0101593543894145) internal successors, (97892), 24411 states have internal predecessors, (97892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:45,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24412 states to 24412 states and 97892 transitions. [2022-03-01 16:24:45,072 INFO L78 Accepts]: Start accepts. Automaton has 24412 states and 97892 transitions. Word has length 117 [2022-03-01 16:24:45,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:45,072 INFO L470 AbstractCegarLoop]: Abstraction has 24412 states and 97892 transitions. [2022-03-01 16:24:45,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:45,072 INFO L276 IsEmpty]: Start isEmpty. Operand 24412 states and 97892 transitions. [2022-03-01 16:24:45,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:24:45,127 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:45,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:24:45,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-01 16:24:45,128 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:45,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:45,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1204947815, now seen corresponding path program 79 times [2022-03-01 16:24:45,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:45,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977027463] [2022-03-01 16:24:45,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:45,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:45,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:45,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:45,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977027463] [2022-03-01 16:24:45,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977027463] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:45,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:45,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:24:45,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209658223] [2022-03-01 16:24:45,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:45,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:24:45,786 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:45,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:24:45,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:24:45,787 INFO L87 Difference]: Start difference. First operand 24412 states and 97892 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:47,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:47,397 INFO L93 Difference]: Finished difference Result 58387 states and 229475 transitions. [2022-03-01 16:24:47,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:24:47,397 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:24:47,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:47,604 INFO L225 Difference]: With dead ends: 58387 [2022-03-01 16:24:47,604 INFO L226 Difference]: Without dead ends: 57805 [2022-03-01 16:24:47,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:24:47,605 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 752 mSDsluCounter, 3030 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 2863 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:47,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 2863 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:24:47,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57805 states. [2022-03-01 16:24:48,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57805 to 24448. [2022-03-01 16:24:48,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24448 states, 24447 states have (on average 4.008794535116783) internal successors, (98003), 24447 states have internal predecessors, (98003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:48,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24448 states to 24448 states and 98003 transitions. [2022-03-01 16:24:48,751 INFO L78 Accepts]: Start accepts. Automaton has 24448 states and 98003 transitions. Word has length 117 [2022-03-01 16:24:48,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:48,751 INFO L470 AbstractCegarLoop]: Abstraction has 24448 states and 98003 transitions. [2022-03-01 16:24:48,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:48,751 INFO L276 IsEmpty]: Start isEmpty. Operand 24448 states and 98003 transitions. [2022-03-01 16:24:48,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:24:48,800 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:48,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:24:48,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-01 16:24:48,801 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:48,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:48,801 INFO L85 PathProgramCache]: Analyzing trace with hash -477578307, now seen corresponding path program 80 times [2022-03-01 16:24:48,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:48,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960929898] [2022-03-01 16:24:48,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:48,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:49,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:49,393 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:49,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960929898] [2022-03-01 16:24:49,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960929898] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:49,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:49,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:24:49,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548934174] [2022-03-01 16:24:49,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:49,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:24:49,393 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:49,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:24:49,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:24:49,394 INFO L87 Difference]: Start difference. First operand 24448 states and 98003 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:50,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:50,872 INFO L93 Difference]: Finished difference Result 57802 states and 227507 transitions. [2022-03-01 16:24:50,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:24:50,872 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:24:50,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:51,250 INFO L225 Difference]: With dead ends: 57802 [2022-03-01 16:24:51,250 INFO L226 Difference]: Without dead ends: 57067 [2022-03-01 16:24:51,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:24:51,250 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 734 mSDsluCounter, 2900 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:51,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [734 Valid, 2742 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:24:51,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57067 states. [2022-03-01 16:24:52,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57067 to 24268. [2022-03-01 16:24:52,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24268 states, 24267 states have (on average 4.014175629455639) internal successors, (97412), 24267 states have internal predecessors, (97412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:52,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24268 states to 24268 states and 97412 transitions. [2022-03-01 16:24:52,170 INFO L78 Accepts]: Start accepts. Automaton has 24268 states and 97412 transitions. Word has length 117 [2022-03-01 16:24:52,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:52,171 INFO L470 AbstractCegarLoop]: Abstraction has 24268 states and 97412 transitions. [2022-03-01 16:24:52,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:52,171 INFO L276 IsEmpty]: Start isEmpty. Operand 24268 states and 97412 transitions. [2022-03-01 16:24:52,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:24:52,221 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:52,221 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:24:52,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-01 16:24:52,221 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:52,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:52,221 INFO L85 PathProgramCache]: Analyzing trace with hash -432630929, now seen corresponding path program 81 times [2022-03-01 16:24:52,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:52,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130096796] [2022-03-01 16:24:52,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:52,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:52,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:52,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:52,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130096796] [2022-03-01 16:24:52,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130096796] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:52,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:52,811 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:24:52,811 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916296657] [2022-03-01 16:24:52,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:52,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:24:52,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:52,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:24:52,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:24:52,811 INFO L87 Difference]: Start difference. First operand 24268 states and 97412 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:54,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:54,848 INFO L93 Difference]: Finished difference Result 58495 states and 229977 transitions. [2022-03-01 16:24:54,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:24:54,848 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:24:54,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:55,078 INFO L225 Difference]: With dead ends: 58495 [2022-03-01 16:24:55,078 INFO L226 Difference]: Without dead ends: 57901 [2022-03-01 16:24:55,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:24:55,078 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 736 mSDsluCounter, 3247 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:55,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [736 Valid, 3043 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-01 16:24:55,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57901 states. [2022-03-01 16:24:55,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57901 to 24349. [2022-03-01 16:24:55,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24349 states, 24348 states have (on average 4.012896336454739) internal successors, (97706), 24348 states have internal predecessors, (97706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:56,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24349 states to 24349 states and 97706 transitions. [2022-03-01 16:24:56,045 INFO L78 Accepts]: Start accepts. Automaton has 24349 states and 97706 transitions. Word has length 117 [2022-03-01 16:24:56,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:56,045 INFO L470 AbstractCegarLoop]: Abstraction has 24349 states and 97706 transitions. [2022-03-01 16:24:56,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:56,045 INFO L276 IsEmpty]: Start isEmpty. Operand 24349 states and 97706 transitions. [2022-03-01 16:24:56,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:24:56,095 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:56,095 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] [2022-03-01 16:24:56,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-01 16:24:56,095 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:56,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:56,096 INFO L85 PathProgramCache]: Analyzing trace with hash 900236687, now seen corresponding path program 82 times [2022-03-01 16:24:56,096 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:56,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649152703] [2022-03-01 16:24:56,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:56,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:24:56,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:24:56,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:24:56,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649152703] [2022-03-01 16:24:56,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649152703] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:24:56,896 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:24:56,896 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:24:56,896 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769158298] [2022-03-01 16:24:56,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:24:56,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:24:56,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:24:56,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:24:56,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:24:56,897 INFO L87 Difference]: Start difference. First operand 24349 states and 97706 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:58,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:24:58,466 INFO L93 Difference]: Finished difference Result 58483 states and 229902 transitions. [2022-03-01 16:24:58,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:24:58,467 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:24:58,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:24:58,690 INFO L225 Difference]: With dead ends: 58483 [2022-03-01 16:24:58,691 INFO L226 Difference]: Without dead ends: 57856 [2022-03-01 16:24:58,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:24:58,691 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 902 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 2687 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:24:58,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [902 Valid, 2687 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:24:58,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57856 states. [2022-03-01 16:24:59,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57856 to 24304. [2022-03-01 16:24:59,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24304 states, 24303 states have (on average 4.014278072665926) internal successors, (97559), 24303 states have internal predecessors, (97559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:59,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24304 states to 24304 states and 97559 transitions. [2022-03-01 16:24:59,650 INFO L78 Accepts]: Start accepts. Automaton has 24304 states and 97559 transitions. Word has length 117 [2022-03-01 16:24:59,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:24:59,650 INFO L470 AbstractCegarLoop]: Abstraction has 24304 states and 97559 transitions. [2022-03-01 16:24:59,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:24:59,651 INFO L276 IsEmpty]: Start isEmpty. Operand 24304 states and 97559 transitions. [2022-03-01 16:24:59,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:24:59,881 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:24:59,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:24:59,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-01 16:24:59,882 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:24:59,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:24:59,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1051333159, now seen corresponding path program 83 times [2022-03-01 16:24:59,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:24:59,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523993332] [2022-03-01 16:24:59,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:24:59,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:24:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:00,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:00,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:25:00,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523993332] [2022-03-01 16:25:00,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523993332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:25:00,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:25:00,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:25:00,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87482612] [2022-03-01 16:25:00,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:25:00,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:25:00,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:00,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:25:00,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:25:00,474 INFO L87 Difference]: Start difference. First operand 24304 states and 97559 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:02,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:25:02,070 INFO L93 Difference]: Finished difference Result 59044 states and 231774 transitions. [2022-03-01 16:25:02,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:25:02,071 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:25:02,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:25:02,281 INFO L225 Difference]: With dead ends: 59044 [2022-03-01 16:25:02,281 INFO L226 Difference]: Without dead ends: 58450 [2022-03-01 16:25:02,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:25:02,282 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 895 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:25:02,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [895 Valid, 2705 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:25:02,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58450 states. [2022-03-01 16:25:03,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58450 to 24340. [2022-03-01 16:25:03,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24340 states, 24339 states have (on average 4.012901105222071) internal successors, (97670), 24339 states have internal predecessors, (97670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:03,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24340 states to 24340 states and 97670 transitions. [2022-03-01 16:25:03,394 INFO L78 Accepts]: Start accepts. Automaton has 24340 states and 97670 transitions. Word has length 117 [2022-03-01 16:25:03,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:25:03,394 INFO L470 AbstractCegarLoop]: Abstraction has 24340 states and 97670 transitions. [2022-03-01 16:25:03,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:03,394 INFO L276 IsEmpty]: Start isEmpty. Operand 24340 states and 97670 transitions. [2022-03-01 16:25:03,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:25:03,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:25:03,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:25:03,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-01 16:25:03,441 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:25:03,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:25:03,441 INFO L85 PathProgramCache]: Analyzing trace with hash 8677935, now seen corresponding path program 84 times [2022-03-01 16:25:03,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:25:03,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290194832] [2022-03-01 16:25:03,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:03,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:25:03,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:04,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:04,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:25:04,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290194832] [2022-03-01 16:25:04,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290194832] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:25:04,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:25:04,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:25:04,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751969740] [2022-03-01 16:25:04,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:25:04,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:25:04,104 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:04,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:25:04,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:25:04,104 INFO L87 Difference]: Start difference. First operand 24340 states and 97670 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:05,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:25:05,572 INFO L93 Difference]: Finished difference Result 58555 states and 230181 transitions. [2022-03-01 16:25:05,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:25:05,573 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:25:05,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:25:05,938 INFO L225 Difference]: With dead ends: 58555 [2022-03-01 16:25:05,938 INFO L226 Difference]: Without dead ends: 57964 [2022-03-01 16:25:05,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:25:05,938 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 823 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:25:05,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [823 Valid, 2680 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:25:06,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57964 states. [2022-03-01 16:25:06,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57964 to 24304. [2022-03-01 16:25:06,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24304 states, 24303 states have (on average 4.013784306464222) internal successors, (97547), 24303 states have internal predecessors, (97547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:06,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24304 states to 24304 states and 97547 transitions. [2022-03-01 16:25:06,849 INFO L78 Accepts]: Start accepts. Automaton has 24304 states and 97547 transitions. Word has length 117 [2022-03-01 16:25:06,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:25:06,849 INFO L470 AbstractCegarLoop]: Abstraction has 24304 states and 97547 transitions. [2022-03-01 16:25:06,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:06,849 INFO L276 IsEmpty]: Start isEmpty. Operand 24304 states and 97547 transitions. [2022-03-01 16:25:06,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:25:06,899 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:25:06,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:25:06,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-01 16:25:06,899 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:25:06,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:25:06,899 INFO L85 PathProgramCache]: Analyzing trace with hash -599157767, now seen corresponding path program 85 times [2022-03-01 16:25:06,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:25:06,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485672539] [2022-03-01 16:25:06,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:06,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:25:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:07,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:07,368 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:25:07,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485672539] [2022-03-01 16:25:07,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485672539] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:25:07,368 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:25:07,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:25:07,368 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306621529] [2022-03-01 16:25:07,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:25:07,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:25:07,369 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:07,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:25:07,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:25:07,369 INFO L87 Difference]: Start difference. First operand 24304 states and 97547 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:09,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:25:09,193 INFO L93 Difference]: Finished difference Result 59032 states and 231732 transitions. [2022-03-01 16:25:09,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:25:09,193 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:25:09,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:25:09,518 INFO L225 Difference]: With dead ends: 59032 [2022-03-01 16:25:09,518 INFO L226 Difference]: Without dead ends: 58450 [2022-03-01 16:25:09,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:25:09,519 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 873 mSDsluCounter, 2972 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 2812 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:25:09,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [873 Valid, 2812 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:25:09,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58450 states. [2022-03-01 16:25:10,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58450 to 24340. [2022-03-01 16:25:10,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24340 states, 24339 states have (on average 4.012408069353712) internal successors, (97658), 24339 states have internal predecessors, (97658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:10,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24340 states to 24340 states and 97658 transitions. [2022-03-01 16:25:10,573 INFO L78 Accepts]: Start accepts. Automaton has 24340 states and 97658 transitions. Word has length 117 [2022-03-01 16:25:10,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:25:10,573 INFO L470 AbstractCegarLoop]: Abstraction has 24340 states and 97658 transitions. [2022-03-01 16:25:10,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:10,574 INFO L276 IsEmpty]: Start isEmpty. Operand 24340 states and 97658 transitions. [2022-03-01 16:25:10,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:25:10,620 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:25:10,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:25:10,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-01 16:25:10,621 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:25:10,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:25:10,622 INFO L85 PathProgramCache]: Analyzing trace with hash 2013283407, now seen corresponding path program 86 times [2022-03-01 16:25:10,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:25:10,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066819933] [2022-03-01 16:25:10,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:10,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:25:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:11,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:11,515 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:25:11,515 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066819933] [2022-03-01 16:25:11,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066819933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:25:11,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:25:11,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:25:11,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407964563] [2022-03-01 16:25:11,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:25:11,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:25:11,516 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:11,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:25:11,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:25:11,516 INFO L87 Difference]: Start difference. First operand 24340 states and 97658 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:13,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:25:13,072 INFO L93 Difference]: Finished difference Result 58555 states and 230169 transitions. [2022-03-01 16:25:13,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:25:13,072 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:25:13,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:25:13,284 INFO L225 Difference]: With dead ends: 58555 [2022-03-01 16:25:13,284 INFO L226 Difference]: Without dead ends: 57952 [2022-03-01 16:25:13,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=220, Invalid=482, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:25:13,285 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 718 mSDsluCounter, 2925 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 2767 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:25:13,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [718 Valid, 2767 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:25:13,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57952 states. [2022-03-01 16:25:14,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57952 to 24292. [2022-03-01 16:25:14,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24292 states, 24291 states have (on average 4.014079288625417) internal successors, (97506), 24291 states have internal predecessors, (97506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:14,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24292 states to 24292 states and 97506 transitions. [2022-03-01 16:25:14,212 INFO L78 Accepts]: Start accepts. Automaton has 24292 states and 97506 transitions. Word has length 117 [2022-03-01 16:25:14,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:25:14,213 INFO L470 AbstractCegarLoop]: Abstraction has 24292 states and 97506 transitions. [2022-03-01 16:25:14,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:14,213 INFO L276 IsEmpty]: Start isEmpty. Operand 24292 states and 97506 transitions. [2022-03-01 16:25:14,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:25:14,483 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:25:14,483 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] [2022-03-01 16:25:14,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-01 16:25:14,484 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:25:14,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:25:14,484 INFO L85 PathProgramCache]: Analyzing trace with hash 886413671, now seen corresponding path program 87 times [2022-03-01 16:25:14,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:25:14,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189295564] [2022-03-01 16:25:14,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:14,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:25:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:15,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:15,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:25:15,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189295564] [2022-03-01 16:25:15,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189295564] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:25:15,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:25:15,069 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:25:15,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944771192] [2022-03-01 16:25:15,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:25:15,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:25:15,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:15,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:25:15,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:25:15,070 INFO L87 Difference]: Start difference. First operand 24292 states and 97506 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:16,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:25:16,631 INFO L93 Difference]: Finished difference Result 57670 states and 227128 transitions. [2022-03-01 16:25:16,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:25:16,631 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:25:16,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:25:16,830 INFO L225 Difference]: With dead ends: 57670 [2022-03-01 16:25:16,831 INFO L226 Difference]: Without dead ends: 57076 [2022-03-01 16:25:16,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=222, Invalid=480, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:25:16,831 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 732 mSDsluCounter, 2837 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 2694 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:25:16,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [732 Valid, 2694 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:25:16,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57076 states. [2022-03-01 16:25:17,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57076 to 24400. [2022-03-01 16:25:17,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24400 states, 24399 states have (on average 4.012910365178901) internal successors, (97911), 24399 states have internal predecessors, (97911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:17,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24400 states to 24400 states and 97911 transitions. [2022-03-01 16:25:17,986 INFO L78 Accepts]: Start accepts. Automaton has 24400 states and 97911 transitions. Word has length 117 [2022-03-01 16:25:17,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:25:17,986 INFO L470 AbstractCegarLoop]: Abstraction has 24400 states and 97911 transitions. [2022-03-01 16:25:17,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:17,987 INFO L276 IsEmpty]: Start isEmpty. Operand 24400 states and 97911 transitions. [2022-03-01 16:25:18,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:25:18,036 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:25:18,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:25:18,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-01 16:25:18,036 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:25:18,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:25:18,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1946424765, now seen corresponding path program 88 times [2022-03-01 16:25:18,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:25:18,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95291078] [2022-03-01 16:25:18,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:18,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:25:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:18,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:18,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:25:18,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95291078] [2022-03-01 16:25:18,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95291078] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:25:18,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:25:18,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:25:18,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692929767] [2022-03-01 16:25:18,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:25:18,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:25:18,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:18,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:25:18,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:25:18,683 INFO L87 Difference]: Start difference. First operand 24400 states and 97911 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:20,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:25:20,153 INFO L93 Difference]: Finished difference Result 57631 states and 226972 transitions. [2022-03-01 16:25:20,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:25:20,153 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:25:20,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:25:20,347 INFO L225 Difference]: With dead ends: 57631 [2022-03-01 16:25:20,347 INFO L226 Difference]: Without dead ends: 57040 [2022-03-01 16:25:20,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=222, Invalid=480, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:25:20,348 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 793 mSDsluCounter, 2794 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:25:20,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [793 Valid, 2656 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1178 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:25:20,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57040 states. [2022-03-01 16:25:21,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57040 to 24364. [2022-03-01 16:25:21,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.012806304642285) internal successors, (97764), 24363 states have internal predecessors, (97764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:21,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97764 transitions. [2022-03-01 16:25:21,457 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97764 transitions. Word has length 117 [2022-03-01 16:25:21,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:25:21,458 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97764 transitions. [2022-03-01 16:25:21,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:21,458 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97764 transitions. [2022-03-01 16:25:21,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:25:21,508 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:25:21,508 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] [2022-03-01 16:25:21,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-01 16:25:21,508 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:25:21,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:25:21,508 INFO L85 PathProgramCache]: Analyzing trace with hash -558523761, now seen corresponding path program 89 times [2022-03-01 16:25:21,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:25:21,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126069198] [2022-03-01 16:25:21,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:21,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:25:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:22,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:22,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:25:22,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126069198] [2022-03-01 16:25:22,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126069198] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:25:22,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:25:22,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:25:22,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582562168] [2022-03-01 16:25:22,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:25:22,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:25:22,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:22,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:25:22,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:25:22,239 INFO L87 Difference]: Start difference. First operand 24364 states and 97764 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:23,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:25:23,849 INFO L93 Difference]: Finished difference Result 57253 states and 225793 transitions. [2022-03-01 16:25:23,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:25:23,849 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:25:23,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:25:24,077 INFO L225 Difference]: With dead ends: 57253 [2022-03-01 16:25:24,077 INFO L226 Difference]: Without dead ends: 56410 [2022-03-01 16:25:24,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=225, Invalid=477, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:25:24,078 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 608 mSDsluCounter, 3067 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:25:24,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [608 Valid, 2880 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:25:24,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56410 states. [2022-03-01 16:25:24,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56410 to 24292. [2022-03-01 16:25:24,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24292 states, 24291 states have (on average 4.013091268371001) internal successors, (97482), 24291 states have internal predecessors, (97482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:25,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24292 states to 24292 states and 97482 transitions. [2022-03-01 16:25:25,020 INFO L78 Accepts]: Start accepts. Automaton has 24292 states and 97482 transitions. Word has length 117 [2022-03-01 16:25:25,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:25:25,020 INFO L470 AbstractCegarLoop]: Abstraction has 24292 states and 97482 transitions. [2022-03-01 16:25:25,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:25,020 INFO L276 IsEmpty]: Start isEmpty. Operand 24292 states and 97482 transitions. [2022-03-01 16:25:25,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:25:25,069 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:25:25,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:25:25,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-01 16:25:25,069 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:25:25,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:25:25,069 INFO L85 PathProgramCache]: Analyzing trace with hash -943150745, now seen corresponding path program 90 times [2022-03-01 16:25:25,069 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:25:25,069 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509326688] [2022-03-01 16:25:25,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:25,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:25:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:25,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:25,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:25:25,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509326688] [2022-03-01 16:25:25,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509326688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:25:25,921 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:25:25,921 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:25:25,921 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636157208] [2022-03-01 16:25:25,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:25:25,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:25:25,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:25,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:25:25,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:25:25,921 INFO L87 Difference]: Start difference. First operand 24292 states and 97482 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:27,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:25:27,555 INFO L93 Difference]: Finished difference Result 57874 states and 227884 transitions. [2022-03-01 16:25:27,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:25:27,555 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:25:27,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:25:27,760 INFO L225 Difference]: With dead ends: 57874 [2022-03-01 16:25:27,760 INFO L226 Difference]: Without dead ends: 57292 [2022-03-01 16:25:27,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=224, Invalid=478, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:25:27,761 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 772 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 2681 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 16:25:27,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [772 Valid, 2681 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 16:25:27,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57292 states. [2022-03-01 16:25:28,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57292 to 24400. [2022-03-01 16:25:28,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24400 states, 24399 states have (on average 4.0119267183081275) internal successors, (97887), 24399 states have internal predecessors, (97887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:28,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24400 states to 24400 states and 97887 transitions. [2022-03-01 16:25:28,652 INFO L78 Accepts]: Start accepts. Automaton has 24400 states and 97887 transitions. Word has length 117 [2022-03-01 16:25:28,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:25:28,652 INFO L470 AbstractCegarLoop]: Abstraction has 24400 states and 97887 transitions. [2022-03-01 16:25:28,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:28,652 INFO L276 IsEmpty]: Start isEmpty. Operand 24400 states and 97887 transitions. [2022-03-01 16:25:28,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:25:28,900 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:25:28,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:25:28,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-01 16:25:28,901 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:25:28,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:25:28,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1669290429, now seen corresponding path program 91 times [2022-03-01 16:25:28,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:25:28,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992245621] [2022-03-01 16:25:28,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:28,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:25:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:29,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:29,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:25:29,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992245621] [2022-03-01 16:25:29,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992245621] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:25:29,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:25:29,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:25:29,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943366940] [2022-03-01 16:25:29,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:25:29,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:25:29,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:29,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:25:29,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:25:29,559 INFO L87 Difference]: Start difference. First operand 24400 states and 97887 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:31,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:25:31,191 INFO L93 Difference]: Finished difference Result 57847 states and 227758 transitions. [2022-03-01 16:25:31,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:25:31,192 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:25:31,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:25:31,417 INFO L225 Difference]: With dead ends: 57847 [2022-03-01 16:25:31,417 INFO L226 Difference]: Without dead ends: 57256 [2022-03-01 16:25:31,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=224, Invalid=478, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:25:31,417 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 736 mSDsluCounter, 2768 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 2631 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-01 16:25:31,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [736 Valid, 2631 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-01 16:25:31,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57256 states. [2022-03-01 16:25:32,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57256 to 24364. [2022-03-01 16:25:32,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24364 states, 24363 states have (on average 4.011821204285186) internal successors, (97740), 24363 states have internal predecessors, (97740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:32,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24364 states to 24364 states and 97740 transitions. [2022-03-01 16:25:32,671 INFO L78 Accepts]: Start accepts. Automaton has 24364 states and 97740 transitions. Word has length 117 [2022-03-01 16:25:32,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:25:32,672 INFO L470 AbstractCegarLoop]: Abstraction has 24364 states and 97740 transitions. [2022-03-01 16:25:32,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:32,672 INFO L276 IsEmpty]: Start isEmpty. Operand 24364 states and 97740 transitions. [2022-03-01 16:25:32,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:25:32,720 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:25:32,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:25:32,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-01 16:25:32,720 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:25:32,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:25:32,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1454703727, now seen corresponding path program 92 times [2022-03-01 16:25:32,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:25:32,721 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774297951] [2022-03-01 16:25:32,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:32,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:25:32,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:33,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:33,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:25:33,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774297951] [2022-03-01 16:25:33,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774297951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:25:33,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:25:33,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:25:33,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883047416] [2022-03-01 16:25:33,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:25:33,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:25:33,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:33,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:25:33,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:25:33,374 INFO L87 Difference]: Start difference. First operand 24364 states and 97740 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:34,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:25:34,799 INFO L93 Difference]: Finished difference Result 57253 states and 225769 transitions. [2022-03-01 16:25:34,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:25:34,799 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:25:34,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:25:34,988 INFO L225 Difference]: With dead ends: 57253 [2022-03-01 16:25:34,988 INFO L226 Difference]: Without dead ends: 56386 [2022-03-01 16:25:34,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=226, Invalid=476, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:25:34,988 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 675 mSDsluCounter, 2554 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 2449 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 16:25:34,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [675 Valid, 2449 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1077 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 16:25:35,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56386 states. [2022-03-01 16:25:35,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56386 to 24268. [2022-03-01 16:25:35,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24268 states, 24267 states have (on average 4.013186632051758) internal successors, (97388), 24267 states have internal predecessors, (97388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:36,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24268 states to 24268 states and 97388 transitions. [2022-03-01 16:25:36,042 INFO L78 Accepts]: Start accepts. Automaton has 24268 states and 97388 transitions. Word has length 117 [2022-03-01 16:25:36,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:25:36,042 INFO L470 AbstractCegarLoop]: Abstraction has 24268 states and 97388 transitions. [2022-03-01 16:25:36,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:36,042 INFO L276 IsEmpty]: Start isEmpty. Operand 24268 states and 97388 transitions. [2022-03-01 16:25:36,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:25:36,090 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:25:36,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 16:25:36,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-01 16:25:36,091 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:25:36,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:25:36,091 INFO L85 PathProgramCache]: Analyzing trace with hash 500065423, now seen corresponding path program 93 times [2022-03-01 16:25:36,091 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:25:36,091 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323015858] [2022-03-01 16:25:36,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:36,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:25:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 16:25:36,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 16:25:36,678 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 16:25:36,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323015858] [2022-03-01 16:25:36,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323015858] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 16:25:36,678 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 16:25:36,678 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 16:25:36,678 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487927825] [2022-03-01 16:25:36,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 16:25:36,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 16:25:36,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 16:25:36,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 16:25:36,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-03-01 16:25:36,679 INFO L87 Difference]: Start difference. First operand 24268 states and 97388 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:38,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 16:25:38,399 INFO L93 Difference]: Finished difference Result 56680 states and 223593 transitions. [2022-03-01 16:25:38,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-01 16:25:38,399 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-03-01 16:25:38,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 16:25:38,790 INFO L225 Difference]: With dead ends: 56680 [2022-03-01 16:25:38,791 INFO L226 Difference]: Without dead ends: 55693 [2022-03-01 16:25:38,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=223, Invalid=479, Unknown=0, NotChecked=0, Total=702 [2022-03-01 16:25:38,791 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 629 mSDsluCounter, 3065 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 16:25:38,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [629 Valid, 2876 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 16:25:38,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55693 states. [2022-03-01 16:25:39,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55693 to 24664. [2022-03-01 16:25:39,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24664 states, 24663 states have (on average 4.008474232656206) internal successors, (98861), 24663 states have internal predecessors, (98861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:39,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24664 states to 24664 states and 98861 transitions. [2022-03-01 16:25:39,773 INFO L78 Accepts]: Start accepts. Automaton has 24664 states and 98861 transitions. Word has length 117 [2022-03-01 16:25:39,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 16:25:39,774 INFO L470 AbstractCegarLoop]: Abstraction has 24664 states and 98861 transitions. [2022-03-01 16:25:39,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 16:25:39,774 INFO L276 IsEmpty]: Start isEmpty. Operand 24664 states and 98861 transitions. [2022-03-01 16:25:39,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-01 16:25:39,827 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 16:25:39,827 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] [2022-03-01 16:25:39,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-01 16:25:39,828 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 16:25:39,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 16:25:39,828 INFO L85 PathProgramCache]: Analyzing trace with hash -868899911, now seen corresponding path program 94 times [2022-03-01 16:25:39,828 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 16:25:39,828 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595391223] [2022-03-01 16:25:39,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 16:25:39,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 16:25:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat