/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=NARROWEST --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/heap-manipulation/dll_of_dll-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:27:26,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:27:26,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:27:26,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:27:26,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:27:26,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:27:26,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:27:26,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:27:26,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:27:26,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:27:26,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:27:26,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:27:26,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:27:26,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:27:26,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:27:26,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:27:26,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:27:26,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:27:26,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:27:26,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:27:26,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:27:26,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:27:26,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:27:26,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:27:26,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:27:26,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:27:26,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:27:26,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:27:26,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:27:26,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:27:26,759 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:27:26,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:27:26,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:27:26,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:27:26,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:27:26,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:27:26,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:27:26,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:27:26,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:27:26,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:27:26,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:27:26,771 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 [2020-10-13 10:27:26,809 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:27:26,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:27:26,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:27:26,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:27:26,812 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:27:26,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:27:26,812 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:27:26,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:27:26,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:27:26,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:27:26,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:27:26,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:27:26,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:27:26,815 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:27:26,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:27:26,815 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:27:26,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:27:26,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:27:26,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:27:26,816 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:27:26,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:27:26,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:27:26,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:27:26,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:27:26,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:27:26,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:27:26,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:27:26,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:27:26,817 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:27:26,818 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 10:27:27,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:27:27,185 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:27:27,188 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:27:27,191 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:27:27,192 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:27:27,192 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-10-13 10:27:27,263 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d74226d7e/fed8730b46874211aab4b9dddb8893b7/FLAG90ff1f55d [2020-10-13 10:27:27,749 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:27:27,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-10-13 10:27:27,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d74226d7e/fed8730b46874211aab4b9dddb8893b7/FLAG90ff1f55d [2020-10-13 10:27:28,054 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d74226d7e/fed8730b46874211aab4b9dddb8893b7 [2020-10-13 10:27:28,064 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:27:28,065 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:27:28,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:27:28,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:27:28,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:27:28,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:27:28" (1/1) ... [2020-10-13 10:27:28,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@780d6d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:27:28, skipping insertion in model container [2020-10-13 10:27:28,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:27:28" (1/1) ... [2020-10-13 10:27:28,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:27:28,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:27:28,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:27:28,697 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:27:28,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:27:28,860 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:27:28,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:27:28 WrapperNode [2020-10-13 10:27:28,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:27:28,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:27:28,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:27:28,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:27:28,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:27:28" (1/1) ... [2020-10-13 10:27:28,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:27:28" (1/1) ... [2020-10-13 10:27:28,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:27:28" (1/1) ... [2020-10-13 10:27:28,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:27:28" (1/1) ... [2020-10-13 10:27:28,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:27:28" (1/1) ... [2020-10-13 10:27:28,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:27:28" (1/1) ... [2020-10-13 10:27:28,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:27:28" (1/1) ... [2020-10-13 10:27:28,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:27:28,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:27:28,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:27:28,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:27:28,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:27:28" (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 [2020-10-13 10:27:29,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:27:29,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:27:29,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-13 10:27:29,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-13 10:27:29,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-13 10:27:29,035 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-10-13 10:27:29,035 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-10-13 10:27:29,036 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-10-13 10:27:29,036 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-10-13 10:27:29,036 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-10-13 10:27:29,037 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-10-13 10:27:29,037 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-10-13 10:27:29,037 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-10-13 10:27:29,037 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-10-13 10:27:29,037 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-10-13 10:27:29,038 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-10-13 10:27:29,038 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-10-13 10:27:29,039 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-10-13 10:27:29,039 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-10-13 10:27:29,039 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-10-13 10:27:29,040 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-10-13 10:27:29,040 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:27:29,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:27:29,040 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-13 10:27:29,042 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-13 10:27:29,042 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-13 10:27:29,043 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-13 10:27:29,043 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-13 10:27:29,043 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-13 10:27:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-13 10:27:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-13 10:27:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-13 10:27:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-13 10:27:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-13 10:27:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-13 10:27:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-13 10:27:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-13 10:27:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-13 10:27:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-13 10:27:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-13 10:27:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-13 10:27:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-13 10:27:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-13 10:27:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-13 10:27:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-13 10:27:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-13 10:27:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-13 10:27:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-13 10:27:29,047 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-13 10:27:29,047 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-13 10:27:29,047 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-13 10:27:29,047 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-13 10:27:29,048 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-13 10:27:29,048 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-13 10:27:29,048 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-13 10:27:29,048 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-13 10:27:29,048 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-13 10:27:29,048 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-13 10:27:29,048 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-13 10:27:29,049 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-13 10:27:29,049 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-13 10:27:29,049 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-13 10:27:29,049 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-13 10:27:29,049 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-13 10:27:29,049 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-13 10:27:29,050 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-13 10:27:29,050 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-13 10:27:29,050 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-13 10:27:29,050 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-13 10:27:29,050 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-13 10:27:29,050 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-13 10:27:29,050 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-13 10:27:29,051 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-13 10:27:29,051 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-13 10:27:29,051 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-13 10:27:29,051 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 10:27:29,051 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 10:27:29,051 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-13 10:27:29,052 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 10:27:29,052 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-13 10:27:29,052 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-13 10:27:29,052 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-13 10:27:29,052 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-13 10:27:29,052 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-13 10:27:29,052 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 10:27:29,053 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-13 10:27:29,053 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-13 10:27:29,053 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-13 10:27:29,053 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 10:27:29,053 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-13 10:27:29,053 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-13 10:27:29,053 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-13 10:27:29,054 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-13 10:27:29,054 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-13 10:27:29,054 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-13 10:27:29,054 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-13 10:27:29,054 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-13 10:27:29,054 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-13 10:27:29,054 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-13 10:27:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-13 10:27:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-13 10:27:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-13 10:27:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-13 10:27:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-13 10:27:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-13 10:27:29,055 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-13 10:27:29,056 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-13 10:27:29,056 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-13 10:27:29,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-13 10:27:29,056 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-13 10:27:29,056 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-13 10:27:29,056 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-13 10:27:29,056 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-13 10:27:29,057 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-13 10:27:29,057 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-13 10:27:29,057 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-13 10:27:29,057 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-13 10:27:29,058 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-13 10:27:29,058 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-13 10:27:29,058 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-13 10:27:29,059 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-13 10:27:29,059 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-13 10:27:29,059 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-13 10:27:29,059 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-13 10:27:29,059 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-13 10:27:29,060 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-13 10:27:29,060 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-13 10:27:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-13 10:27:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 10:27:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-10-13 10:27:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-10-13 10:27:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 10:27:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 10:27:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-10-13 10:27:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-10-13 10:27:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 10:27:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-10-13 10:27:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 10:27:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-13 10:27:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 10:27:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 10:27:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-10-13 10:27:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-10-13 10:27:29,075 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-10-13 10:27:29,075 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-10-13 10:27:29,075 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-10-13 10:27:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-10-13 10:27:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-10-13 10:27:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-10-13 10:27:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-10-13 10:27:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-10-13 10:27:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-10-13 10:27:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:27:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:27:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:27:29,948 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:27:29,949 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-10-13 10:27:29,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:27:29 BoogieIcfgContainer [2020-10-13 10:27:29,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:27:29,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:27:29,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:27:29,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:27:29,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:27:28" (1/3) ... [2020-10-13 10:27:29,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5981d93e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:27:29, skipping insertion in model container [2020-10-13 10:27:29,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:27:28" (2/3) ... [2020-10-13 10:27:29,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5981d93e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:27:29, skipping insertion in model container [2020-10-13 10:27:29,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:27:29" (3/3) ... [2020-10-13 10:27:29,968 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2020-10-13 10:27:29,980 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:27:29,989 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 10:27:30,004 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 10:27:30,036 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:27:30,036 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:27:30,036 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:27:30,036 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:27:30,036 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:27:30,037 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:27:30,037 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:27:30,037 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:27:30,065 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-10-13 10:27:30,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-13 10:27:30,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:27:30,081 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2020-10-13 10:27:30,081 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:27:30,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:27:30,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1405399524, now seen corresponding path program 1 times [2020-10-13 10:27:30,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:27:30,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874991606] [2020-10-13 10:27:30,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:27:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:30,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:30,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:30,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:30,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:30,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:30,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:33,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:34,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:35,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:35,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 10:27:35,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 10:27:35,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 10:27:35,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:35,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:27:35,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-13 10:27:35,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:27:35,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 10:27:35,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:27:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:35,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:35,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:35,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:27:35,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:35,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:27:35,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:35,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:27:35,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:27:35,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:27:35,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:35,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:27:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:35,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:35,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:35,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:35,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:35,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:36,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:37,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:37,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 10:27:37,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 10:27:37,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1960 [2020-10-13 10:27:37,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:37,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:27:37,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 10:27:37,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:27:37,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:37,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:27:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:37,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:37,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:37,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:37,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:37,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:37,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:38,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:38,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-13 10:27:38,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 10:27:38,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1371 [2020-10-13 10:27:38,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:38,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:27:38,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 10:27:38,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:27:38,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:38,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:27:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:38,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:38,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:38,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:38,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:27:38,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:27:38,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 10:27:38,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:38,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:27:38,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:27:38,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:27:38,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:38,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:27:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:38,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:38,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:38,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 10:27:38,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:38,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 10:27:38,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:38,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:27:38,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 10:27:38,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:27:38,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:27:38,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:27:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:38,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:38,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:38,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:27:38,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:38,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:27:38,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:38,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:27:38,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 10:27:38,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:27:38,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:27:38,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 10:27:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:38,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:38,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:38,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:27:38,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:38,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 10:27:38,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:38,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:27:38,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 10:27:38,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:27:38,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:27:38,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:27:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:38,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:38,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:38,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 10:27:38,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:38,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 10:27:38,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:27:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 10:27:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:27:38,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:38,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:27:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:38,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:38,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:38,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:27:38,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:38,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:27:38,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:38,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:27:38,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 10:27:38,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:27:38,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:38,892 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 10:27:38,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874991606] [2020-10-13 10:27:38,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:27:38,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 10:27:38,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597039431] [2020-10-13 10:27:38,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 10:27:38,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:27:38,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 10:27:38,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 10:27:38,921 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 4 states. [2020-10-13 10:27:39,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:27:39,334 INFO L93 Difference]: Finished difference Result 343 states and 542 transitions. [2020-10-13 10:27:39,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 10:27:39,336 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-10-13 10:27:39,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:27:39,349 INFO L225 Difference]: With dead ends: 343 [2020-10-13 10:27:39,350 INFO L226 Difference]: Without dead ends: 166 [2020-10-13 10:27:39,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:27:39,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-13 10:27:39,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 155. [2020-10-13 10:27:39,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-13 10:27:39,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 184 transitions. [2020-10-13 10:27:39,421 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 184 transitions. Word has length 59 [2020-10-13 10:27:39,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:27:39,422 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 184 transitions. [2020-10-13 10:27:39,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 10:27:39,422 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 184 transitions. [2020-10-13 10:27:39,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-13 10:27:39,425 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:27:39,425 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2020-10-13 10:27:39,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:27:39,426 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:27:39,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:27:39,426 INFO L82 PathProgramCache]: Analyzing trace with hash 747676979, now seen corresponding path program 1 times [2020-10-13 10:27:39,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:27:39,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55188972] [2020-10-13 10:27:39,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:27:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:39,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:39,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:39,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:39,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:40,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:40,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:44,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:44,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-13 10:27:44,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 10:27:44,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 10:27:44,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:44,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:27:44,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 10:27:44,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 10:27:44,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:27:44,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:27:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:44,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:44,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:44,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:27:44,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:44,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:27:44,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:44,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:27:44,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:27:44,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:27:44,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:44,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:27:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:44,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:44,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:44,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:44,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:47,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:47,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 10:27:47,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 10:27:47,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2701 [2020-10-13 10:27:47,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:47,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:27:47,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 10:27:47,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 10:27:47,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:47,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:27:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:47,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:47,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:47,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:47,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:49,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:49,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 10:27:49,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 10:27:49,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2010 [2020-10-13 10:27:49,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:49,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-13 10:27:49,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 10:27:49,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 10:27:49,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:49,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:27:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:49,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:49,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:49,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:49,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:27:49,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:27:49,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-13 10:27:49,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:49,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 10:27:49,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:27:49,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 10:27:49,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:49,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:27:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:49,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:49,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:49,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 10:27:49,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:49,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-13 10:27:49,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:49,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 10:27:49,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:27:49,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 10:27:49,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:49,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:27:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:49,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:49,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:49,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:27:49,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:49,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 10:27:49,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:49,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:27:49,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:27:49,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:27:49,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:27:49,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 10:27:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:49,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:50,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:50,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:27:50,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:50,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-13 10:27:50,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 10:27:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:27:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 10:27:50,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:27:50,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:27:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:50,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:50,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:50,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 10:27:50,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:50,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-13 10:27:50,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:50,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 10:27:50,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:27:50,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 10:27:50,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:27:50,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:27:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:50,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:50,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:50,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:27:50,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:50,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 10:27:50,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:50,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 10:27:50,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:27:50,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:27:50,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:27:50,743 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 10:27:50,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55188972] [2020-10-13 10:27:50,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:27:50,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-13 10:27:50,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564316904] [2020-10-13 10:27:50,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-13 10:27:50,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:27:50,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-13 10:27:50,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2020-10-13 10:27:50,748 INFO L87 Difference]: Start difference. First operand 155 states and 184 transitions. Second operand 22 states. [2020-10-13 10:27:53,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:27:53,641 INFO L93 Difference]: Finished difference Result 326 states and 408 transitions. [2020-10-13 10:27:53,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 10:27:53,641 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 60 [2020-10-13 10:27:53,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:27:53,646 INFO L225 Difference]: With dead ends: 326 [2020-10-13 10:27:53,646 INFO L226 Difference]: Without dead ends: 178 [2020-10-13 10:27:53,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=133, Invalid=1057, Unknown=0, NotChecked=0, Total=1190 [2020-10-13 10:27:53,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-13 10:27:53,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 166. [2020-10-13 10:27:53,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-13 10:27:53,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 204 transitions. [2020-10-13 10:27:53,676 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 204 transitions. Word has length 60 [2020-10-13 10:27:53,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:27:53,676 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 204 transitions. [2020-10-13 10:27:53,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-13 10:27:53,676 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 204 transitions. [2020-10-13 10:27:53,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-13 10:27:53,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:27:53,678 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2020-10-13 10:27:53,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 10:27:53,679 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:27:53,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:27:53,679 INFO L82 PathProgramCache]: Analyzing trace with hash 528822261, now seen corresponding path program 1 times [2020-10-13 10:27:53,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:27:53,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490229027] [2020-10-13 10:27:53,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:27:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:53,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:53,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:53,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:54,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:54,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:54,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:55,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:55,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:58,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:58,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-13 10:27:58,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 10:27:58,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-13 10:27:58,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:58,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:27:58,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 10:27:58,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 10:27:58,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:58,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:27:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:58,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:58,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:58,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:27:58,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:58,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:27:58,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:58,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:27:58,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:27:58,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:27:58,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:27:58,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:27:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:58,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:58,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:59,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:59,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 10:27:59,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:27:59,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-13 10:27:59,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:59,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:27:59,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 10:27:59,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 10:27:59,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:27:59,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:27:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:59,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:59,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:59,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:59,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 10:27:59,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:27:59,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-10-13 10:27:59,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:59,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:27:59,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 10:27:59,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-13 10:27:59,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:59,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:27:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:59,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:59,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:59,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:27:59,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:59,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 10:27:59,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:59,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:27:59,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:27:59,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 10:27:59,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:59,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:27:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:59,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:59,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:59,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 10:27:59,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:59,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 10:27:59,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:59,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:27:59,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:27:59,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 10:27:59,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:59,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:27:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:59,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:59,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:59,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:27:59,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:59,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:27:59,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:59,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:27:59,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:27:59,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:27:59,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:59,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 10:27:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:59,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:59,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:59,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:27:59,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:59,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 10:27:59,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:27:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:27:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 10:27:59,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:59,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:27:59,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:59,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:59,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:59,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 10:27:59,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:59,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 10:27:59,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:59,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:27:59,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:27:59,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:27:59,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:59,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:27:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:27:59,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:27:59,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:27:59,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:27:59,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:27:59,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:27:59,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:27:59,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:27:59,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:27:59,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:27:59,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:27:59,561 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-13 10:27:59,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490229027] [2020-10-13 10:27:59,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:27:59,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 10:27:59,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398627547] [2020-10-13 10:27:59,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 10:27:59,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:27:59,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 10:27:59,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-13 10:27:59,564 INFO L87 Difference]: Start difference. First operand 166 states and 204 transitions. Second operand 7 states. [2020-10-13 10:28:00,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:28:00,267 INFO L93 Difference]: Finished difference Result 343 states and 434 transitions. [2020-10-13 10:28:00,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 10:28:00,271 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-10-13 10:28:00,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:28:00,273 INFO L225 Difference]: With dead ends: 343 [2020-10-13 10:28:00,274 INFO L226 Difference]: Without dead ends: 184 [2020-10-13 10:28:00,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-10-13 10:28:00,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-10-13 10:28:00,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 173. [2020-10-13 10:28:00,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-10-13 10:28:00,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 204 transitions. [2020-10-13 10:28:00,297 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 204 transitions. Word has length 60 [2020-10-13 10:28:00,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:28:00,298 INFO L479 AbstractCegarLoop]: Abstraction has 173 states and 204 transitions. [2020-10-13 10:28:00,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 10:28:00,298 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 204 transitions. [2020-10-13 10:28:00,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 10:28:00,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:28:00,301 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 10:28:00,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 10:28:00,302 INFO L427 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:28:00,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:28:00,302 INFO L82 PathProgramCache]: Analyzing trace with hash -467161035, now seen corresponding path program 1 times [2020-10-13 10:28:00,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:28:00,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [59297110] [2020-10-13 10:28:00,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:28:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:00,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:00,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:01,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:04,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:05,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:05,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-13 10:28:05,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 10:28:05,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-13 10:28:05,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 10:28:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 10:28:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 10:28:05,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:05,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:28:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:05,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:05,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:05,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:28:05,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:05,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:28:05,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:05,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:05,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:05,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:05,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:28:05,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:28:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:05,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:06,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:06,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-13 10:28:06,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:06,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1399 [2020-10-13 10:28:06,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:06,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 10:28:06,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:28:06,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 10:28:06,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:06,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:28:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:06,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:08,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:08,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-13 10:28:08,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:08,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1328 [2020-10-13 10:28:08,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:08,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 10:28:08,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 10:28:08,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 10:28:08,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:28:08,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:08,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:08,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:08,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 10:28:08,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:08,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-13 10:28:08,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:08,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 10:28:08,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:28:08,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 10:28:08,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:08,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:28:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:08,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:08,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:08,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 10:28:08,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:08,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-13 10:28:08,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:08,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 10:28:08,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:28:08,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 10:28:08,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:09,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:09,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:09,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:09,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:28:09,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:09,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 10:28:09,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:09,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:28:09,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:28:09,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 10:28:09,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:09,640 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-13 10:28:09,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 10:28:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:09,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:09,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:09,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 10:28:09,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:09,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 10:28:09,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:09,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:28:09,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:09,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 10:28:09,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:09,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:28:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:09,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:09,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:09,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 10:28:09,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:09,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 10:28:09,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:09,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:09,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:09,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:09,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:09,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:09,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:09,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:09,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:28:09,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:09,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:28:09,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:09,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:09,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:09,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:09,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:09,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:28:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:09,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:09,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:09,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 10:28:09,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:09,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:28:09,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:09,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:09,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:09,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:09,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:09,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:09,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:09,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:09,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:28:09,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:09,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:28:09,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:09,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:09,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:09,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:09,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:09,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 10:28:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:09,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:09,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:09,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:28:09,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:09,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:28:09,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:09,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:09,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:09,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:09,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:09,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:28:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:09,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:09,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:09,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 10:28:09,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:09,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:28:09,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:09,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:09,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:09,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:09,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:09,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:09,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:09,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:09,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:28:09,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:09,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:28:09,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:09,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:09,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:09,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:09,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:09,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 10:28:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:09,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:09,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:09,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 10:28:09,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:09,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 10:28:09,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:09,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:09,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 10:28:09,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:09,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:09,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:28:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:09,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:09,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:09,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 10:28:09,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:09,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 10:28:09,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:09,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:09,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:09,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:09,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:09,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:09,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:09,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:09,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:28:09,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:09,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 10:28:09,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:09,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:09,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:09,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:09,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:09,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 10:28:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:09,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:10,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:10,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 10:28:10,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:10,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 10:28:10,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:10,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:10,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:10,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:10,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:10,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:28:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:10,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:10,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:10,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 10:28:10,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:10,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 10:28:10,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:10,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:10,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:10,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:10,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:10,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:10,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:10,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:10,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:28:10,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:10,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 10:28:10,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:10,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:10,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:10,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:10,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:10,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:28:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:10,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:10,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:10,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 10:28:10,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:10,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:28:10,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:10,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:10,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:10,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:10,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:10,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:10,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:10,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:10,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:10,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:28:10,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:10,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:28:10,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:10,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:10,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:10,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:10,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:10,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 10:28:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:10,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:10,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:10,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:28:10,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:10,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 10:28:10,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:10,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:10,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:10,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:10,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:10,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:28:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:10,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:10,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:10,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 10:28:10,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:10,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:28:10,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:10,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:10,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:10,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:10,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:10,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:10,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:10,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:10,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:28:10,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:10,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:28:10,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:10,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:10,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:10,222 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2020-10-13 10:28:10,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [59297110] [2020-10-13 10:28:10,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:28:10,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 10:28:10,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609316018] [2020-10-13 10:28:10,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 10:28:10,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:28:10,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 10:28:10,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-13 10:28:10,225 INFO L87 Difference]: Start difference. First operand 173 states and 204 transitions. Second operand 13 states. [2020-10-13 10:28:10,989 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2020-10-13 10:28:12,432 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-13 10:28:12,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:28:12,574 INFO L93 Difference]: Finished difference Result 357 states and 427 transitions. [2020-10-13 10:28:12,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 10:28:12,574 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 154 [2020-10-13 10:28:12,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:28:12,578 INFO L225 Difference]: With dead ends: 357 [2020-10-13 10:28:12,579 INFO L226 Difference]: Without dead ends: 193 [2020-10-13 10:28:12,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2020-10-13 10:28:12,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-10-13 10:28:12,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 179. [2020-10-13 10:28:12,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-10-13 10:28:12,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 212 transitions. [2020-10-13 10:28:12,603 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 212 transitions. Word has length 154 [2020-10-13 10:28:12,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:28:12,603 INFO L479 AbstractCegarLoop]: Abstraction has 179 states and 212 transitions. [2020-10-13 10:28:12,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 10:28:12,604 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 212 transitions. [2020-10-13 10:28:12,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 10:28:12,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:28:12,606 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 10:28:12,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 10:28:12,607 INFO L427 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:28:12,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:28:12,607 INFO L82 PathProgramCache]: Analyzing trace with hash -2084601485, now seen corresponding path program 1 times [2020-10-13 10:28:12,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:28:12,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401609442] [2020-10-13 10:28:12,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:28:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:12,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:12,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:16,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:17,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:17,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-13 10:28:17,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:28:17,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-13 10:28:17,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:17,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-13 10:28:17,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-13 10:28:17,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-13 10:28:17,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:17,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:28:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:17,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:17,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:17,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:28:17,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:17,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:28:17,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:17,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:17,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:17,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:17,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:17,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:28:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:17,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:18,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:22,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:23,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:23,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-13 10:28:23,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:28:23,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5766 [2020-10-13 10:28:23,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:23,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 54 [2020-10-13 10:28:23,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:23,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-13 10:28:23,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:23,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:28:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:23,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:23,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:27,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:28,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:28,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-13 10:28:28,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:28:28,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-13 10:28:28,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:28,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 52 [2020-10-13 10:28:28,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:28,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-13 10:28:28,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:28,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:28,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:29,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:29,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 10:28:29,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:29,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-10-13 10:28:29,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:29,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 10:28:29,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:29,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 10:28:29,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:29,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:28:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:29,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:29,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:29,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 10:28:29,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:29,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-13 10:28:29,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:29,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 10:28:29,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:29,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 10:28:29,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:29,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:29,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:29,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:29,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:28:29,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:29,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 10:28:29,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:29,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:28:29,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:29,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:28:29,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:29,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 10:28:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:29,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:29,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:29,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 10:28:29,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:29,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 10:28:29,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:29,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:28:29,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:29,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 10:28:29,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:29,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:28:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:29,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:29,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:29,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 10:28:29,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:29,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 10:28:29,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:29,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:29,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:29,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:29,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:29,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:29,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:28:29,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:29,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:28:29,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:29,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:29,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:29,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:29,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:29,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:28:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:29,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:29,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:29,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 10:28:29,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:29,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:28:29,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:29,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:29,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:29,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:29,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:29,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:29,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:29,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:29,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:28:29,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:29,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:28:29,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:29,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:29,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:29,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:29,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:29,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 10:28:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:29,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:29,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:29,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:28:29,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:29,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:28:29,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:29,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:29,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:29,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:29,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:29,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:28:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:29,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:29,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:29,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 10:28:29,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:29,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:28:29,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:29,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:29,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:29,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:29,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:28:29,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:29,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:29,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:29,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:28:29,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:29,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:28:29,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:29,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:29,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:29,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:29,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:29,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 10:28:29,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:29,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:30,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:31,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:31,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:33,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:33,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:34,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:34,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 10:28:34,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 10:28:34,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 10:28:34,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:34,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 10:28:34,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:34,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 10:28:34,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:35,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:28:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:35,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:35,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:35,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 10:28:35,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:35,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-13 10:28:35,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:35,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 10:28:35,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:35,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 10:28:35,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:35,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:35,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:35,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:35,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:35,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:28:35,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:35,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 10:28:35,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:35,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 10:28:35,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:35,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 10:28:35,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:35,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 10:28:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:35,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:35,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:35,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 10:28:35,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:35,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 10:28:35,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:35,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:28:35,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:35,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 10:28:35,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:35,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:28:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:35,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:35,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:35,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 10:28:35,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:35,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 10:28:35,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:35,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:35,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:35,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:35,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:35,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:35,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:35,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:35,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:35,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:28:35,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:35,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:28:35,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:35,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:35,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:35,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:35,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:35,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:28:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:35,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:35,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:35,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 10:28:35,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:35,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:28:35,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:35,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:35,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:35,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:35,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:35,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:35,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:35,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:35,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:28:35,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:35,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:28:35,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:35,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:35,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:35,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:35,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:35,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 10:28:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:35,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:35,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:35,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:28:35,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:35,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 10:28:35,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:35,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:35,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:35,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:35,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:35,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:28:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:35,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:35,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:35,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 10:28:35,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:35,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:28:35,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:35,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:35,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:35,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:35,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:28:35,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:35,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:35,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:35,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:28:35,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:35,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:28:35,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:35,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:35,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:35,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:35,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:35,785 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 25 proven. 25 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2020-10-13 10:28:35,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1401609442] [2020-10-13 10:28:35,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 10:28:35,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-13 10:28:35,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745890623] [2020-10-13 10:28:35,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-13 10:28:35,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:28:35,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-13 10:28:35,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=801, Unknown=0, NotChecked=0, Total=870 [2020-10-13 10:28:35,789 INFO L87 Difference]: Start difference. First operand 179 states and 212 transitions. Second operand 30 states. [2020-10-13 10:28:38,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:28:38,469 INFO L93 Difference]: Finished difference Result 321 states and 392 transitions. [2020-10-13 10:28:38,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-13 10:28:38,470 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 154 [2020-10-13 10:28:38,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:28:38,474 INFO L225 Difference]: With dead ends: 321 [2020-10-13 10:28:38,474 INFO L226 Difference]: Without dead ends: 251 [2020-10-13 10:28:38,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=166, Invalid=1726, Unknown=0, NotChecked=0, Total=1892 [2020-10-13 10:28:38,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-10-13 10:28:38,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 206. [2020-10-13 10:28:38,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-13 10:28:38,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 245 transitions. [2020-10-13 10:28:38,531 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 245 transitions. Word has length 154 [2020-10-13 10:28:38,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:28:38,532 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 245 transitions. [2020-10-13 10:28:38,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-13 10:28:38,532 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 245 transitions. [2020-10-13 10:28:38,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-13 10:28:38,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:28:38,539 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 10:28:38,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 10:28:38,540 INFO L427 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:28:38,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:28:38,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1709746076, now seen corresponding path program 1 times [2020-10-13 10:28:38,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:28:38,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [413485013] [2020-10-13 10:28:38,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:28:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:38,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:40,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:43,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:44,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:44,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-13 10:28:44,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:28:44,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5516 [2020-10-13 10:28:44,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:44,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 52 [2020-10-13 10:28:44,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-13 10:28:44,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-13 10:28:44,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:44,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:28:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:44,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:44,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:44,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:28:44,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:44,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 10:28:44,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:44,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:44,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:44,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:44,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:44,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 10:28:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:44,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:45,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:48,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:49,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:49,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-13 10:28:49,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:28:49,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-13 10:28:49,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:49,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-13 10:28:49,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:49,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-13 10:28:49,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:49,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:28:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:49,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:50,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:52,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:54,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:54,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-13 10:28:54,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 10:28:54,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-13 10:28:54,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:54,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-13 10:28:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-13 10:28:54,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:54,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:54,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:54,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:54,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 10:28:54,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:54,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 10:28:54,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:54,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:54,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:54,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:54,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:54,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:28:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:54,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:54,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:54,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 10:28:54,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:54,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 10:28:54,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:54,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:54,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:54,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:54,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:54,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:54,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:54,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:54,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:28:54,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:54,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:28:54,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:54,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:54,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:54,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:54,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:54,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 10:28:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:54,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:54,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:54,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-13 10:28:54,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:54,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 10:28:54,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:54,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:54,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:54,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:54,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:54,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:28:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:54,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:54,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:54,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 10:28:54,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:54,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 10:28:54,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:54,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:54,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:54,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:54,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:54,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:54,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:54,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:54,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:28:54,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:54,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:28:54,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:54,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:54,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:54,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:54,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:54,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:28:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:54,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:54,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:54,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 10:28:54,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:54,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:28:54,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:54,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:54,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:54,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:54,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:54,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:54,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:54,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:54,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:28:54,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:54,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 10:28:54,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:54,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:54,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:54,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:54,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:54,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 10:28:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:54,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:54,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:54,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 10:28:54,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:54,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 10:28:54,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:54,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:54,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:54,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:54,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:54,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:28:54,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:54,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:54,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:54,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 10:28:54,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:54,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:28:54,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:54,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:54,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:54,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:54,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:28:54,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:28:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:54,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:54,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:28:54,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:28:54,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:28:54,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 10:28:54,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:28:54,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:28:54,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:28:54,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:28:54,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:28:55,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 10:28:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:28:55,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:55,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:57,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:28:57,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:00,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:00,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-13 10:29:00,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 10:29:00,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 10:29:00,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:00,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-13 10:29:00,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:29:00,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 10:29:00,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:29:00,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 10:29:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:29:00,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:00,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:01,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:02,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:29:04,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:29:04,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-13 10:29:04,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 10:29:04,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4348 [2020-10-13 10:29:04,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:29:04,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-13 10:29:04,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:29:04,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 10:29:04,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:29:21,942 WARN L193 SmtUtils]: Spent 12.08 s on a formula simplification. DAG size of input: 1040 DAG size of output: 62