/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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 [2020-10-14 23:30:13,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 23:30:13,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 23:30:13,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 23:30:13,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 23:30:13,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 23:30:13,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 23:30:13,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 23:30:13,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 23:30:13,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 23:30:13,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 23:30:13,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 23:30:13,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 23:30:13,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 23:30:13,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 23:30:13,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 23:30:13,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 23:30:13,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 23:30:13,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 23:30:13,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 23:30:13,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 23:30:13,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 23:30:13,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 23:30:13,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 23:30:13,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 23:30:13,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 23:30:13,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 23:30:13,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 23:30:13,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 23:30:13,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 23:30:13,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 23:30:13,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 23:30:13,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 23:30:13,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 23:30:13,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 23:30:13,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 23:30:13,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 23:30:13,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 23:30:13,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 23:30:13,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 23:30:13,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 23:30:13,726 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 [2020-10-14 23:30:13,777 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 23:30:13,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 23:30:13,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 23:30:13,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 23:30:13,779 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 23:30:13,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 23:30:13,780 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 23:30:13,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 23:30:13,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 23:30:13,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 23:30:13,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 23:30:13,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 23:30:13,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 23:30:13,784 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 23:30:13,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 23:30:13,785 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 23:30:13,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 23:30:13,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 23:30:13,787 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 23:30:13,788 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 23:30:13,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 23:30:13,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:30:13,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 23:30:13,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 23:30:13,789 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 23:30:13,789 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 23:30:13,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 23:30:13,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 23:30:13,789 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 23:30:13,790 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 23:30:14,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 23:30:14,142 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 23:30:14,146 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 23:30:14,148 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 23:30:14,148 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 23:30:14,149 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i [2020-10-14 23:30:14,207 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/963a7da49/6180139e8ad44f169470a69bf3280d9d/FLAGa638ce3de [2020-10-14 23:30:14,741 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 23:30:14,742 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-1.i [2020-10-14 23:30:14,762 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/963a7da49/6180139e8ad44f169470a69bf3280d9d/FLAGa638ce3de [2020-10-14 23:30:15,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/963a7da49/6180139e8ad44f169470a69bf3280d9d [2020-10-14 23:30:15,027 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 23:30:15,028 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 23:30:15,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 23:30:15,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 23:30:15,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 23:30:15,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:30:15" (1/1) ... [2020-10-14 23:30:15,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626d7225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15, skipping insertion in model container [2020-10-14 23:30:15,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:30:15" (1/1) ... [2020-10-14 23:30:15,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 23:30:15,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 23:30:15,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:30:15,647 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 23:30:15,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:30:15,779 INFO L208 MainTranslator]: Completed translation [2020-10-14 23:30:15,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15 WrapperNode [2020-10-14 23:30:15,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 23:30:15,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 23:30:15,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 23:30:15,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 23:30:15,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15" (1/1) ... [2020-10-14 23:30:15,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15" (1/1) ... [2020-10-14 23:30:15,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15" (1/1) ... [2020-10-14 23:30:15,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15" (1/1) ... [2020-10-14 23:30:15,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15" (1/1) ... [2020-10-14 23:30:15,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15" (1/1) ... [2020-10-14 23:30:15,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15" (1/1) ... [2020-10-14 23:30:15,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 23:30:15,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 23:30:15,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 23:30:15,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 23:30:15,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15" (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 [2020-10-14 23:30:15,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 23:30:15,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 23:30:15,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-14 23:30:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-14 23:30:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 23:30:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-14 23:30:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-10-14 23:30:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-14 23:30:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-14 23:30:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-14 23:30:15,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-14 23:30:15,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-14 23:30:15,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-14 23:30:15,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-10-14 23:30:15,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-10-14 23:30:15,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-14 23:30:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-10-14 23:30:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-10-14 23:30:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-10-14 23:30:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-14 23:30:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-14 23:30:15,945 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-14 23:30:15,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-14 23:30:15,946 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-14 23:30:15,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 23:30:15,946 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-14 23:30:15,946 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-14 23:30:15,946 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-14 23:30:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-14 23:30:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-14 23:30:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-14 23:30:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-14 23:30:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-14 23:30:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-14 23:30:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-14 23:30:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-14 23:30:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-14 23:30:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-14 23:30:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-14 23:30:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-14 23:30:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-14 23:30:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-14 23:30:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-14 23:30:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-14 23:30:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-14 23:30:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-14 23:30:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-14 23:30:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-14 23:30:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-14 23:30:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-14 23:30:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-14 23:30:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-14 23:30:15,953 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-14 23:30:15,953 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-14 23:30:15,953 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-14 23:30:15,953 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-14 23:30:15,953 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-14 23:30:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-14 23:30:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-14 23:30:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-14 23:30:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-14 23:30:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-14 23:30:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-14 23:30:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-14 23:30:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-14 23:30:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-14 23:30:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-14 23:30:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-14 23:30:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-14 23:30:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-14 23:30:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-14 23:30:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-14 23:30:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-14 23:30:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-14 23:30:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-14 23:30:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-14 23:30:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-14 23:30:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 23:30:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 23:30:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-14 23:30:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 23:30:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-14 23:30:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-14 23:30:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-14 23:30:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-14 23:30:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-14 23:30:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 23:30:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-14 23:30:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-14 23:30:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-14 23:30:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 23:30:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-14 23:30:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-14 23:30:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-14 23:30:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-14 23:30:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-14 23:30:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-14 23:30:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-14 23:30:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-14 23:30:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-14 23:30:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-14 23:30:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-14 23:30:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-14 23:30:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-14 23:30:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-14 23:30:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-14 23:30:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-14 23:30:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-14 23:30:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-14 23:30:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-14 23:30:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-14 23:30:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-14 23:30:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-14 23:30:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-14 23:30:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-14 23:30:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-14 23:30:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-14 23:30:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-14 23:30:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-14 23:30:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-14 23:30:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-14 23:30:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-14 23:30:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-14 23:30:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-14 23:30:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-14 23:30:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-14 23:30:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-14 23:30:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-14 23:30:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-14 23:30:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-14 23:30:15,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 23:30:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 23:30:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 23:30:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-14 23:30:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 23:30:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-10-14 23:30:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-14 23:30:15,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 23:30:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-14 23:30:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-14 23:30:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-14 23:30:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 23:30:15,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-14 23:30:15,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-14 23:30:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-10-14 23:30:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-10-14 23:30:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-14 23:30:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-10-14 23:30:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-10-14 23:30:15,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-10-14 23:30:15,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 23:30:15,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-14 23:30:15,978 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-14 23:30:15,978 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-14 23:30:15,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-14 23:30:15,978 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-14 23:30:15,979 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 23:30:15,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 23:30:15,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 23:30:15,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 23:30:15,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 23:30:16,749 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 23:30:16,750 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-14 23:30:16,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:30:16 BoogieIcfgContainer [2020-10-14 23:30:16,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 23:30:16,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 23:30:16,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 23:30:16,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 23:30:16,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:30:15" (1/3) ... [2020-10-14 23:30:16,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f4ae12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:30:16, skipping insertion in model container [2020-10-14 23:30:16,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:15" (2/3) ... [2020-10-14 23:30:16,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f4ae12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:30:16, skipping insertion in model container [2020-10-14 23:30:16,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:30:16" (3/3) ... [2020-10-14 23:30:16,763 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-1.i [2020-10-14 23:30:16,774 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 23:30:16,782 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-14 23:30:16,796 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-14 23:30:16,819 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 23:30:16,819 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 23:30:16,820 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 23:30:16,820 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 23:30:16,820 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 23:30:16,820 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 23:30:16,820 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 23:30:16,821 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 23:30:16,843 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-10-14 23:30:16,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-14 23:30:16,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:30:16,852 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] [2020-10-14 23:30:16,853 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:30:16,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:30:16,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1110911066, now seen corresponding path program 1 times [2020-10-14 23:30:16,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:30:16,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [127585543] [2020-10-14 23:30:16,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:30:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:17,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:17,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:17,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:17,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:17,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 23:30:17,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 23:30:17,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 834 [2020-10-14 23:30:17,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:17,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:17,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 23:30:17,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:30:17,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 23:30:17,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 23:30:17,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:30:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:18,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:18,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:18,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:30:18,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:18,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 23:30:18,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:18,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:18,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:18,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:18,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:30:18,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:18,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:30:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:18,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:18,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:18,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:30:18,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:18,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:30:18,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:18,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:18,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:18,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:18,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 23:30:18,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:18,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:30:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:18,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:18,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:18,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:30:18,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:18,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:30:18,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:18,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:18,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:18,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 23:30:18,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:18,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:18,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:30:18,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [127585543] [2020-10-14 23:30:18,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:30:18,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 23:30:18,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045064879] [2020-10-14 23:30:18,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 23:30:18,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:30:18,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 23:30:18,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:30:18,091 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 5 states. [2020-10-14 23:30:18,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:30:18,962 INFO L93 Difference]: Finished difference Result 272 states and 339 transitions. [2020-10-14 23:30:18,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 23:30:18,965 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-14 23:30:18,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:30:18,983 INFO L225 Difference]: With dead ends: 272 [2020-10-14 23:30:18,983 INFO L226 Difference]: Without dead ends: 151 [2020-10-14 23:30:18,990 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 [2020-10-14 23:30:19,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-10-14 23:30:19,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 119. [2020-10-14 23:30:19,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-14 23:30:19,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 131 transitions. [2020-10-14 23:30:19,060 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 131 transitions. Word has length 24 [2020-10-14 23:30:19,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:30:19,060 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 131 transitions. [2020-10-14 23:30:19,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 23:30:19,061 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 131 transitions. [2020-10-14 23:30:19,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 23:30:19,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:30:19,062 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] [2020-10-14 23:30:19,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 23:30:19,063 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:30:19,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:30:19,063 INFO L82 PathProgramCache]: Analyzing trace with hash 387564813, now seen corresponding path program 1 times [2020-10-14 23:30:19,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:30:19,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066731820] [2020-10-14 23:30:19,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:30:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:19,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:19,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:19,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 23:30:19,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:19,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-14 23:30:19,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:19,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:19,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 23:30:19,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:30:19,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 23:30:19,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:30:19,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:30:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:19,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:19,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:19,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:30:19,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:19,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 23:30:19,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:19,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:19,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:19,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:19,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:30:19,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:30:19,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:30:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:19,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:19,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:19,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:30:19,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:19,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:30:19,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:19,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:19,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:19,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:19,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 23:30:19,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:19,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 23:30:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:19,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:19,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:19,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 23:30:19,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:19,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 23:30:19,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:19,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:19,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 23:30:19,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:19,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 23:30:19,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:19,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:19,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:19,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:19,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:30:19,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:19,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 23:30:19,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:19,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:19,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:30:19,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:19,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:30:19,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:19,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:30:19,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066731820] [2020-10-14 23:30:19,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:30:19,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 23:30:19,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621606772] [2020-10-14 23:30:19,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 23:30:19,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:30:19,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 23:30:19,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-14 23:30:19,696 INFO L87 Difference]: Start difference. First operand 119 states and 131 transitions. Second operand 9 states. [2020-10-14 23:30:21,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:30:21,007 INFO L93 Difference]: Finished difference Result 151 states and 167 transitions. [2020-10-14 23:30:21,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 23:30:21,007 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-10-14 23:30:21,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:30:21,010 INFO L225 Difference]: With dead ends: 151 [2020-10-14 23:30:21,010 INFO L226 Difference]: Without dead ends: 133 [2020-10-14 23:30:21,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2020-10-14 23:30:21,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-14 23:30:21,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 115. [2020-10-14 23:30:21,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-14 23:30:21,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 126 transitions. [2020-10-14 23:30:21,041 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 126 transitions. Word has length 28 [2020-10-14 23:30:21,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:30:21,041 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 126 transitions. [2020-10-14 23:30:21,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 23:30:21,042 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 126 transitions. [2020-10-14 23:30:21,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-14 23:30:21,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:30:21,046 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] [2020-10-14 23:30:21,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 23:30:21,046 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:30:21,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:30:21,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1877008118, now seen corresponding path program 1 times [2020-10-14 23:30:21,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:30:21,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344053819] [2020-10-14 23:30:21,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:30:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:21,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:21,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:21,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 23:30:21,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:21,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-14 23:30:21,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:21,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:21,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:30:21,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-14 23:30:21,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 23:30:21,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:21,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:30:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:21,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:21,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:21,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:30:21,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:21,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:30:21,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:21,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:21,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:21,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:21,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:21,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:21,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:30:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:21,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:21,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:21,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:30:21,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:21,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:30:21,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:21,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:21,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:21,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:21,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:21,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:21,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 23:30:21,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:21,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:21,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:21,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 23:30:21,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:21,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 23:30:21,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:21,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:21,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:21,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:21,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:21,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 21 [2020-10-14 23:30:21,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:21,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:21,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:21,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:30:21,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:21,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:30:21,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:21,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:21,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:21,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:21,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:21,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:21,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:30:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:21,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:21,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:21,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 23:30:21,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:21,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:30:21,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:21,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:21,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:21,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:21,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:21,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:30:21,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:21,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:21,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:21,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:30:21,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:21,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:30:21,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:21,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:21,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:21,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:21,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:21,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:21,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:30:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:21,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:21,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:21,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:30:21,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:21,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 23:30:21,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:21,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:21,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:30:21,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:21,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:30:21,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:21,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 23:30:21,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344053819] [2020-10-14 23:30:21,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:30:21,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 23:30:21,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197751604] [2020-10-14 23:30:21,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 23:30:21,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:30:21,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 23:30:21,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 23:30:21,465 INFO L87 Difference]: Start difference. First operand 115 states and 126 transitions. Second operand 7 states. [2020-10-14 23:30:22,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:30:22,037 INFO L93 Difference]: Finished difference Result 136 states and 153 transitions. [2020-10-14 23:30:22,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 23:30:22,037 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2020-10-14 23:30:22,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:30:22,040 INFO L225 Difference]: With dead ends: 136 [2020-10-14 23:30:22,040 INFO L226 Difference]: Without dead ends: 134 [2020-10-14 23:30:22,041 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 [2020-10-14 23:30:22,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-14 23:30:22,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 119. [2020-10-14 23:30:22,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-14 23:30:22,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 132 transitions. [2020-10-14 23:30:22,059 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 132 transitions. Word has length 46 [2020-10-14 23:30:22,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:30:22,059 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 132 transitions. [2020-10-14 23:30:22,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 23:30:22,060 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 132 transitions. [2020-10-14 23:30:22,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-14 23:30:22,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:30:22,062 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] [2020-10-14 23:30:22,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 23:30:22,062 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:30:22,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:30:22,062 INFO L82 PathProgramCache]: Analyzing trace with hash -302404813, now seen corresponding path program 1 times [2020-10-14 23:30:22,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:30:22,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711031488] [2020-10-14 23:30:22,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:30:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:22,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:22,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:22,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 23:30:22,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:22,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 859 [2020-10-14 23:30:22,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:22,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:22,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-14 23:30:22,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:30:22,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-14 23:30:22,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:23,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:30:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:23,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:23,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:23,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:30:23,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:23,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 23:30:23,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:23,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:23,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:30:23,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:23,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:30:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:23,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:23,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:23,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:30:23,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:23,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 23:30:23,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:23,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:23,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:23,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 23:30:23,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 23:30:23,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 23:30:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:23,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:23,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:23,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 23:30:23,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:23,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 23:30:23,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:23,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:23,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:30:23,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:23,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 23:30:23,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 23:30:23,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:23,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:23,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:23,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:30:23,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:23,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:30:23,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:23,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:23,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:23,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:23,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:30:23,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 23:30:23,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:30:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:23,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:23,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:23,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 23:30:23,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:23,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-14 23:30:23,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:23,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:23,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 23:30:23,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:30:23,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:30:23,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:24,268 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-14 23:30:24,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:30:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:24,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:24,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:24,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:30:24,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:24,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-14 23:30:24,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:24,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:24,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:30:24,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:30:24,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:30:24,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:32:12,363 WARN L193 SmtUtils]: Spent 1.47 m on a formula simplification. DAG size of input: 1448 DAG size of output: 77 [2020-10-14 23:32:14,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 23:32:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:32:14,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:32:14,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:32:14,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:32:14,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:32:14,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 23:32:14,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:32:14,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:32:14,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:32:14,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 23:32:14,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 23:32:14,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:32:14,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:32:14,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711031488] [2020-10-14 23:32:14,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:32:14,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-14 23:32:14,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075052017] [2020-10-14 23:32:14,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-14 23:32:14,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:32:14,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-14 23:32:14,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-14 23:32:14,364 INFO L87 Difference]: Start difference. First operand 119 states and 132 transitions. Second operand 16 states. [2020-10-14 23:32:15,416 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-14 23:32:15,711 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-14 23:32:18,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:32:18,621 INFO L93 Difference]: Finished difference Result 327 states and 389 transitions. [2020-10-14 23:32:18,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-14 23:32:18,622 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 46 [2020-10-14 23:32:18,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:32:18,626 INFO L225 Difference]: With dead ends: 327 [2020-10-14 23:32:18,626 INFO L226 Difference]: Without dead ends: 235 [2020-10-14 23:32:18,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 92.7s TimeCoverageRelationStatistics Valid=312, Invalid=1248, Unknown=0, NotChecked=0, Total=1560 [2020-10-14 23:32:18,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-10-14 23:32:18,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 179. [2020-10-14 23:32:18,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-10-14 23:32:18,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 211 transitions. [2020-10-14 23:32:18,683 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 211 transitions. Word has length 46 [2020-10-14 23:32:18,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:32:18,684 INFO L479 AbstractCegarLoop]: Abstraction has 179 states and 211 transitions. [2020-10-14 23:32:18,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-14 23:32:18,684 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 211 transitions. [2020-10-14 23:32:18,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-14 23:32:18,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:32:18,687 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, 1, 1] [2020-10-14 23:32:18,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 23:32:18,687 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:32:18,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:32:18,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1876657510, now seen corresponding path program 1 times [2020-10-14 23:32:18,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:32:18,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960062958] [2020-10-14 23:32:18,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:32:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:32:18,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:32:18,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:32:19,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:32:19,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 23:32:19,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:32:19,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 536 [2020-10-14 23:32:19,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:32:19,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:32:19,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 23:32:19,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:32:19,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 23:32:19,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:32:19,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:32:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:32:19,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:32:19,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:32:19,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:32:19,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:32:19,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:32:19,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:32:19,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:32:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:32:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:32:19,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:32:19,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:32:19,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:32:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:32:19,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:32:19,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:32:19,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:32:19,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:32:19,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:32:19,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:32:19,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:32:19,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:32:19,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:32:19,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 23:32:19,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:32:19,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 23:32:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:32:19,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:32:19,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:32:19,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 23:32:19,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:32:19,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 23:32:19,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:32:19,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:32:19,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:32:19,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:32:19,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 23:32:19,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:32:19,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:32:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:32:19,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:32:19,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:32:19,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:32:19,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:32:19,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:32:19,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:32:19,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:32:19,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:32:19,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:32:19,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:32:19,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:32:19,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:32:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:32:19,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:32:19,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:32:19,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 23:32:19,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:32:19,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 23:32:19,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:32:19,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:32:19,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:32:19,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:32:19,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 23:32:19,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:32:19,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:32:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:32:19,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:32:19,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:32:19,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:32:19,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:32:19,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 23:32:19,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:32:19,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:32:19,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 23:32:19,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:32:19,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:32:19,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:32:19,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 23:32:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:32:19,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:32:19,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:32:19,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:32:19,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:32:19,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:32:19,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:32:19,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:32:19,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:32:19,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 23:32:19,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:32:19,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:32:19,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:32:19,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1960062958] [2020-10-14 23:32:19,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 23:32:19,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 23:32:19,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914734548] [2020-10-14 23:32:19,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 23:32:19,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:32:19,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 23:32:19,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2020-10-14 23:32:19,540 INFO L87 Difference]: Start difference. First operand 179 states and 211 transitions. Second operand 15 states. [2020-10-14 23:32:21,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:32:21,638 INFO L93 Difference]: Finished difference Result 362 states and 438 transitions. [2020-10-14 23:32:21,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 23:32:21,639 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 48 [2020-10-14 23:32:21,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:32:21,642 INFO L225 Difference]: With dead ends: 362 [2020-10-14 23:32:21,643 INFO L226 Difference]: Without dead ends: 275 [2020-10-14 23:32:21,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=191, Invalid=1069, Unknown=0, NotChecked=0, Total=1260 [2020-10-14 23:32:21,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-10-14 23:32:21,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 237. [2020-10-14 23:32:21,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-10-14 23:32:21,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 286 transitions. [2020-10-14 23:32:21,673 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 286 transitions. Word has length 48 [2020-10-14 23:32:21,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:32:21,673 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 286 transitions. [2020-10-14 23:32:21,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 23:32:21,674 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 286 transitions. [2020-10-14 23:32:21,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 23:32:21,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:32:21,677 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:32:21,677 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 23:32:21,677 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:32:21,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:32:21,678 INFO L82 PathProgramCache]: Analyzing trace with hash -378930374, now seen corresponding path program 2 times [2020-10-14 23:32:21,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:32:21,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925071526] [2020-10-14 23:32:21,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:32:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:32:21,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:32:23,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:32:23,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 23:32:23,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:32:23,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1440 [2020-10-14 23:32:23,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:32:23,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:32:23,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-14 23:32:23,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 23:32:23,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 23:32:23,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:32:23,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:32:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:32:23,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:32:23,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:32:23,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:32:23,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:32:23,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 23:32:23,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:32:23,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:32:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:32:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:32:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:32:23,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:32:23,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:32:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:32:23,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:32:23,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:32:23,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:32:23,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:32:23,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:32:23,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:32:23,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:32:23,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:32:23,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:32:23,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 23:32:23,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:32:23,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-14 23:32:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:32:23,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:32:23,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:32:23,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 23:32:23,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:32:23,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 23:32:23,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:32:23,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:32:23,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:32:23,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:32:23,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 23:32:23,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:32:23,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:32:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:32:23,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:32:23,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:32:23,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:32:23,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:32:23,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:32:23,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:32:23,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:32:23,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:32:23,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:32:23,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:32:23,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:32:23,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 23:32:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:32:23,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:32:23,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:32:23,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 23:32:23,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:32:23,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 23:32:23,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:32:23,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:32:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 23:32:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:32:23,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:32:23,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:32:24,048 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-14 23:32:24,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:32:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:32:24,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:32:24,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:32:24,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:32:24,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:32:24,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 23:32:24,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:32:24,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:32:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:32:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:32:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:32:24,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:34:01,256 WARN L193 SmtUtils]: Spent 1.44 m on a formula simplification. DAG size of input: 3139 DAG size of output: 63 [2020-10-14 23:34:03,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 23:34:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:34:03,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:34:03,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:34:03,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 23:34:03,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:34:03,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 23:34:03,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:34:03,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:34:03,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 23:34:03,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:34:03,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 23:34:03,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:34:03,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:34:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:34:03,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:34:03,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:34:03,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 23:34:03,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:34:03,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:34:03,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:34:03,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:34:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:34:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:34:03,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 23:34:03,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:34:03,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 23:34:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:34:03,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:34:03,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:34:03,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 23:34:03,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:34:04,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 23:34:04,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:34:04,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:34:04,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 23:34:04,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:34:04,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 23:34:04,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:34:04,311 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-14 23:34:04,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 23:34:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:34:04,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:34:04,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:34:04,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:34:04,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:34:04,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-14 23:34:04,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:34:04,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:34:04,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 23:34:04,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 23:34:04,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 23:34:04,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1