/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:44:05,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:44:05,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:44:05,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:44:05,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:44:05,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:44:05,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:44:05,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:44:05,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:44:05,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:44:05,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:44:05,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:44:05,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:44:05,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:44:05,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:44:05,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:44:05,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:44:05,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:44:05,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:44:05,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:44:05,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:44:05,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:44:05,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:44:05,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:44:05,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:44:05,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:44:05,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:44:05,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:44:05,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:44:05,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:44:05,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:44:05,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:44:05,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:44:05,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:44:05,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:44:05,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:44:05,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:44:05,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:44:05,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:44:05,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:44:05,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:44:05,716 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 15:44:05,757 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:44:05,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:44:05,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:44:05,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:44:05,760 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:44:05,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:44:05,761 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:44:05,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:44:05,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:44:05,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:44:05,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:44:05,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:44:05,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:44:05,763 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:44:05,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:44:05,764 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:44:05,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:44:05,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:44:05,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:44:05,764 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:44:05,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:44:05,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:44:05,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:44:05,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:44:05,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:44:05,766 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:44:05,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:44:05,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:44:05,766 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:44:05,766 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:44:06,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:44:06,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:44:06,119 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:44:06,120 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:44:06,121 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:44:06,122 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i [2020-10-12 15:44:06,187 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b66236cc/4034237fb5de41f28bc549143b30efb6/FLAG1c6135f38 [2020-10-12 15:44:06,719 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:44:06,720 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i [2020-10-12 15:44:06,737 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b66236cc/4034237fb5de41f28bc549143b30efb6/FLAG1c6135f38 [2020-10-12 15:44:07,052 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b66236cc/4034237fb5de41f28bc549143b30efb6 [2020-10-12 15:44:07,062 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:44:07,064 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:44:07,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:44:07,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:44:07,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:44:07,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:44:07" (1/1) ... [2020-10-12 15:44:07,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41d8fa7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07, skipping insertion in model container [2020-10-12 15:44:07,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:44:07" (1/1) ... [2020-10-12 15:44:07,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:44:07,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:44:07,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:44:07,672 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:44:07,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:44:07,795 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:44:07,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07 WrapperNode [2020-10-12 15:44:07,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:44:07,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:44:07,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:44:07,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:44:07,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07" (1/1) ... [2020-10-12 15:44:07,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07" (1/1) ... [2020-10-12 15:44:07,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07" (1/1) ... [2020-10-12 15:44:07,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07" (1/1) ... [2020-10-12 15:44:07,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07" (1/1) ... [2020-10-12 15:44:07,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07" (1/1) ... [2020-10-12 15:44:07,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07" (1/1) ... [2020-10-12 15:44:07,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:44:07,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:44:07,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:44:07,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:44:07,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:44:07,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:44:07,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:44:07,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-12 15:44:07,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-12 15:44:07,959 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 15:44:07,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-12 15:44:07,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-10-12 15:44:07,960 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-12 15:44:07,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-12 15:44:07,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-12 15:44:07,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-12 15:44:07,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-12 15:44:07,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-12 15:44:07,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-10-12 15:44:07,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-10-12 15:44:07,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-12 15:44:07,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-10-12 15:44:07,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-10-12 15:44:07,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-10-12 15:44:07,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-12 15:44:07,964 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-12 15:44:07,964 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-12 15:44:07,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-12 15:44:07,966 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-12 15:44:07,967 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:44:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-12 15:44:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-12 15:44:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-12 15:44:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-12 15:44:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-12 15:44:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-12 15:44:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-12 15:44:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-12 15:44:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-12 15:44:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-12 15:44:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-12 15:44:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-12 15:44:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-12 15:44:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-12 15:44:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-12 15:44:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-12 15:44:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-12 15:44:07,971 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-12 15:44:07,972 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-12 15:44:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-12 15:44:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-12 15:44:07,973 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-12 15:44:07,974 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-12 15:44:07,974 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-12 15:44:07,974 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-12 15:44:07,974 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-12 15:44:07,975 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-12 15:44:07,975 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-12 15:44:07,975 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-12 15:44:07,975 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-12 15:44:07,975 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-12 15:44:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-12 15:44:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-12 15:44:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-12 15:44:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-12 15:44:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-12 15:44:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-12 15:44:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-12 15:44:07,977 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-12 15:44:07,977 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-12 15:44:07,977 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-12 15:44:07,977 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-12 15:44:07,978 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-12 15:44:07,978 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-12 15:44:07,979 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-12 15:44:07,979 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-12 15:44:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-12 15:44:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-12 15:44:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-12 15:44:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-12 15:44:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-12 15:44:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-12 15:44:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 15:44:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-12 15:44:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-12 15:44:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 15:44:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-12 15:44:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-12 15:44:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-12 15:44:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-12 15:44:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-12 15:44:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 15:44:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-12 15:44:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-12 15:44:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-12 15:44:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 15:44:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-12 15:44:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-12 15:44:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-12 15:44:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-12 15:44:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-12 15:44:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-12 15:44:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-12 15:44:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-12 15:44:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-12 15:44:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-12 15:44:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-12 15:44:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-12 15:44:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-12 15:44:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-12 15:44:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-12 15:44:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-12 15:44:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-12 15:44:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-12 15:44:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-12 15:44:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-12 15:44:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-12 15:44:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-12 15:44:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-12 15:44:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-12 15:44:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-12 15:44:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-12 15:44:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-12 15:44:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-12 15:44:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-12 15:44:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-12 15:44:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-12 15:44:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-12 15:44:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-12 15:44:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-12 15:44:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-12 15:44:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-12 15:44:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-12 15:44:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-12 15:44:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-12 15:44:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:44:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 15:44:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 15:44:07,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-12 15:44:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 15:44:08,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-10-12 15:44:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-12 15:44:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 15:44:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-12 15:44:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-12 15:44:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-12 15:44:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 15:44:08,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-12 15:44:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-12 15:44:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-10-12 15:44:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-10-12 15:44:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-12 15:44:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-10-12 15:44:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-10-12 15:44:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-10-12 15:44:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 15:44:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-12 15:44:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-12 15:44:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-12 15:44:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-12 15:44:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-12 15:44:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:44:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:44:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 15:44:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-12 15:44:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:44:08,724 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:44:08,724 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-12 15:44:08,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:44:08 BoogieIcfgContainer [2020-10-12 15:44:08,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:44:08,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:44:08,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:44:08,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:44:08,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:44:07" (1/3) ... [2020-10-12 15:44:08,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e9755cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:44:08, skipping insertion in model container [2020-10-12 15:44:08,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07" (2/3) ... [2020-10-12 15:44:08,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e9755cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:44:08, skipping insertion in model container [2020-10-12 15:44:08,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:44:08" (3/3) ... [2020-10-12 15:44:08,738 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-1.i [2020-10-12 15:44:08,751 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:44:08,762 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-12 15:44:08,778 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-12 15:44:08,815 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:44:08,815 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:44:08,815 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:44:08,816 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:44:08,816 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:44:08,816 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:44:08,816 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:44:08,816 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:44:08,850 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-10-12 15:44:08,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-12 15:44:08,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:44:08,876 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:44:08,877 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:44:08,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:44:08,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1110911066, now seen corresponding path program 1 times [2020-10-12 15:44:08,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:44:08,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562860675] [2020-10-12 15:44:08,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:44:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:09,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:09,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:09,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:09,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:09,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 15:44:09,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:44:09,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 803 [2020-10-12 15:44:09,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:09,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:44:09,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:44:09,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 15:44:09,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:44:10,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:44:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:10,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:10,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:10,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:10,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:10,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 15:44:10,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:10,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:10,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:10,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:44:10,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:10,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:44:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:10,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:10,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:10,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 15:44:10,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:10,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:44:10,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:10,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:10,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:10,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 15:44:10,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:10,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 15:44:10,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:10,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:10,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:10,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:44:10,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:10,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 15:44:10,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:10,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:44:10,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 15:44:10,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:44:10,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:10,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:44:10,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562860675] [2020-10-12 15:44:10,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:44:10,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 15:44:10,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418934972] [2020-10-12 15:44:10,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:44:10,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:44:10,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:44:10,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:44:10,131 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 5 states. [2020-10-12 15:44:10,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:44:10,914 INFO L93 Difference]: Finished difference Result 272 states and 339 transitions. [2020-10-12 15:44:10,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 15:44:10,916 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-12 15:44:10,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:44:10,930 INFO L225 Difference]: With dead ends: 272 [2020-10-12 15:44:10,930 INFO L226 Difference]: Without dead ends: 151 [2020-10-12 15:44:10,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:44:10,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-10-12 15:44:11,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 119. [2020-10-12 15:44:11,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-12 15:44:11,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 131 transitions. [2020-10-12 15:44:11,012 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 131 transitions. Word has length 24 [2020-10-12 15:44:11,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:44:11,013 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 131 transitions. [2020-10-12 15:44:11,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:44:11,013 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 131 transitions. [2020-10-12 15:44:11,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-12 15:44:11,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:44:11,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:44:11,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:44:11,015 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:44:11,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:44:11,016 INFO L82 PathProgramCache]: Analyzing trace with hash 387564813, now seen corresponding path program 1 times [2020-10-12 15:44:11,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:44:11,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55836858] [2020-10-12 15:44:11,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:44:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:11,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:11,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:11,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 15:44:11,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:11,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-10-12 15:44:11,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 15:44:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:44:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 15:44:11,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:11,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:44:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:11,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:11,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:11,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:11,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:11,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 15:44:11,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:11,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:11,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:11,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:44:11,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:11,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:44:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:11,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:11,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:11,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 15:44:11,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:11,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:44:11,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:11,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:11,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:11,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 15:44:11,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:11,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 15:44:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:11,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:11,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:11,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:44:11,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:11,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 15:44:11,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:11,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 15:44:11,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:11,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 15:44:11,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:11,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:44:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:11,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:11,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:11,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:11,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:11,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 15:44:11,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:11,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:44:11,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:11,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:44:11,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:11,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:44:11,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55836858] [2020-10-12 15:44:11,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:44:11,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 15:44:11,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307695379] [2020-10-12 15:44:11,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 15:44:11,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:44:11,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 15:44:11,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-12 15:44:11,626 INFO L87 Difference]: Start difference. First operand 119 states and 131 transitions. Second operand 9 states. [2020-10-12 15:44:12,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:44:12,872 INFO L93 Difference]: Finished difference Result 151 states and 167 transitions. [2020-10-12 15:44:12,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 15:44:12,873 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-10-12 15:44:12,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:44:12,878 INFO L225 Difference]: With dead ends: 151 [2020-10-12 15:44:12,878 INFO L226 Difference]: Without dead ends: 133 [2020-10-12 15:44:12,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2020-10-12 15:44:12,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-12 15:44:12,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 115. [2020-10-12 15:44:12,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-12 15:44:12,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 126 transitions. [2020-10-12 15:44:12,902 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 126 transitions. Word has length 28 [2020-10-12 15:44:12,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:44:12,902 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 126 transitions. [2020-10-12 15:44:12,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 15:44:12,903 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 126 transitions. [2020-10-12 15:44:12,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 15:44:12,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:44:12,905 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:44:12,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:44:12,905 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:44:12,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:44:12,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1877008118, now seen corresponding path program 1 times [2020-10-12 15:44:12,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:44:12,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076948779] [2020-10-12 15:44:12,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:44:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:12,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-12 15:44:13,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-12 15:44:13,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 15:44:13,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 15:44:13,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:44:13,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:13,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:44:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:13,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:44:13,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:44:13,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:13,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:44:13,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:13,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:44:13,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 15:44:13,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:44:13,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:44:13,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:13,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:44:13,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:13,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-12 15:44:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 15:44:13,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:44:13,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:44:13,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:13,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:44:13,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:13,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:44:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:44:13,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:44:13,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:44:13,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:13,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:44:13,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:13,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 15:44:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:44:13,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 15:44:13,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:44:13,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:13,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:44:13,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:44:13,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:44:13,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:13,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:44:13,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:44:13,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:13,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:44:13,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:13,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 15:44:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:44:13,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 15:44:13,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 15:44:13,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:13,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:44:13,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:13,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 15:44:13,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076948779] [2020-10-12 15:44:13,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:44:13,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 15:44:13,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549086572] [2020-10-12 15:44:13,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:44:13,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:44:13,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:44:13,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:44:13,193 INFO L87 Difference]: Start difference. First operand 115 states and 126 transitions. Second operand 7 states. [2020-10-12 15:44:13,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:44:13,745 INFO L93 Difference]: Finished difference Result 136 states and 153 transitions. [2020-10-12 15:44:13,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 15:44:13,745 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2020-10-12 15:44:13,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:44:13,748 INFO L225 Difference]: With dead ends: 136 [2020-10-12 15:44:13,748 INFO L226 Difference]: Without dead ends: 134 [2020-10-12 15:44:13,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-12 15:44:13,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-12 15:44:13,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 119. [2020-10-12 15:44:13,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-12 15:44:13,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 132 transitions. [2020-10-12 15:44:13,766 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 132 transitions. Word has length 46 [2020-10-12 15:44:13,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:44:13,766 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 132 transitions. [2020-10-12 15:44:13,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:44:13,767 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 132 transitions. [2020-10-12 15:44:13,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 15:44:13,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:44:13,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:44:13,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 15:44:13,769 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:44:13,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:44:13,770 INFO L82 PathProgramCache]: Analyzing trace with hash -302404813, now seen corresponding path program 1 times [2020-10-12 15:44:13,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:44:13,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140384902] [2020-10-12 15:44:13,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:44:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:14,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:14,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-12 15:44:14,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:14,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 824 [2020-10-12 15:44:14,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:14,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 15:44:14,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:44:14,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 15:44:14,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:14,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:44:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:14,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:14,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:14,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:14,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:14,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 15:44:14,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:14,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:14,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:14,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:44:14,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:14,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:44:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:14,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:14,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:14,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 15:44:14,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:14,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:44:14,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:14,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:14,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:14,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 15:44:14,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:14,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-12 15:44:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:14,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:14,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:14,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 15:44:14,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:14,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 15:44:14,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:14,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:44:14,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:14,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 15:44:14,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:14,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:44:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:14,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:14,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:14,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:44:14,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:14,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:44:14,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:14,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:14,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:14,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:44:14,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:15,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 15:44:15,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:15,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:15,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:15,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:44:15,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:15,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-12 15:44:15,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:15,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 15:44:15,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:15,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 15:44:15,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:44:15,605 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-12 15:44:15,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:44:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:15,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:16,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:16,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:16,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:16,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-10-12 15:44:16,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:16,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:44:16,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:16,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:44:16,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1