/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 SingleStatement --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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:52:38,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:52:38,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:52:38,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:52:38,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:52:38,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:52:38,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:52:38,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:52:38,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:52:38,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:52:38,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:52:38,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:52:38,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:52:38,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:52:38,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:52:38,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:52:38,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:52:38,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:52:38,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:52:38,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:52:38,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:52:38,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:52:38,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:52:38,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:52:38,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:52:38,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:52:38,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:52:38,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:52:38,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:52:38,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:52:38,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:52:38,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:52:38,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:52:38,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:52:38,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:52:38,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:52:38,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:52:38,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:52:38,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:52:38,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:52:38,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:52:38,801 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 [2020-09-25 01:52:38,853 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:52:38,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:52:38,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:52:38,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:52:38,857 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:52:38,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:52:38,858 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:52:38,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:52:38,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:52:38,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:52:38,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:52:38,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:52:38,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:52:38,860 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:52:38,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:52:38,861 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:52:38,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:52:38,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:52:38,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:52:38,862 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:52:38,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:52:38,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:52:38,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:52:38,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:52:38,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:52:38,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:52:38,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:52:38,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:52:38,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:52:38,864 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 -> SingleStatement 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; 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; 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; 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; 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; [2020-09-25 01:52:39,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:52:39,331 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:52:39,335 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:52:39,337 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:52:39,338 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:52:39,339 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product20.cil.c [2020-09-25 01:52:39,420 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0497bea07/129beea0e67c4bc28e8d122cfd8a2402/FLAGdd847102e [2020-09-25 01:52:40,066 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:52:40,067 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product20.cil.c [2020-09-25 01:52:40,080 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0497bea07/129beea0e67c4bc28e8d122cfd8a2402/FLAGdd847102e [2020-09-25 01:52:40,328 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0497bea07/129beea0e67c4bc28e8d122cfd8a2402 [2020-09-25 01:52:40,344 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:52:40,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:52:40,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:52:40,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:52:40,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:52:40,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:52:40" (1/1) ... [2020-09-25 01:52:40,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:40, skipping insertion in model container [2020-09-25 01:52:40,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:52:40" (1/1) ... [2020-09-25 01:52:40,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:52:40,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:52:40,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:52:41,019 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:52:41,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:52:41,141 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:52:41,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:41 WrapperNode [2020-09-25 01:52:41,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:52:41,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:52:41,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:52:41,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:52:41,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:41" (1/1) ... [2020-09-25 01:52:41,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:41" (1/1) ... [2020-09-25 01:52:41,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:41" (1/1) ... [2020-09-25 01:52:41,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:41" (1/1) ... [2020-09-25 01:52:41,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:41" (1/1) ... [2020-09-25 01:52:41,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:41" (1/1) ... [2020-09-25 01:52:41,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:41" (1/1) ... [2020-09-25 01:52:41,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:52:41,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:52:41,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:52:41,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:52:41,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:41" (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 [2020-09-25 01:52:41,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:52:41,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:52:41,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:52:41,371 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:52:41,372 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:52:41,372 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:52:41,372 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:52:41,372 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:52:41,372 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:52:41,373 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:52:41,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:52:41,373 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:52:41,373 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:52:41,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 01:52:41,374 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:52:41,374 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:52:41,374 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:52:41,374 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:52:41,374 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:52:41,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:52:41,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:52:41,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:52:41,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:52:41,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:52:41,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:52:41,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:52:41,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 01:52:41,376 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:52:41,376 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:52:41,377 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:52:41,377 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:52:41,377 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:52:41,377 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:52:41,377 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:52:41,377 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:52:41,378 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 01:52:41,378 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:52:41,378 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:52:41,378 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:52:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:52:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:52:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:52:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:52:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:52:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:52:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:52:41,379 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:52:41,380 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:52:41,380 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:52:41,380 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:52:41,380 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:52:41,380 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:52:41,380 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 01:52:41,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:52:41,381 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:52:41,381 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:52:41,381 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:52:41,381 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:52:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:52:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:52:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:52:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:52:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:52:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:52:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:52:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:52:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:52:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:52:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:52:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:52:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:52:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:52:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:52:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:52:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:52:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:52:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:52:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:52:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:52:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:52:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 01:52:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:52:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:52:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:52:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:52:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:52:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:52:41,386 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 01:52:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:52:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:52:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:52:41,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:52:42,565 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:52:42,565 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:52:42,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:52:42 BoogieIcfgContainer [2020-09-25 01:52:42,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:52:42,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:52:42,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:52:42,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:52:42,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:52:40" (1/3) ... [2020-09-25 01:52:42,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7f23d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:52:42, skipping insertion in model container [2020-09-25 01:52:42,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:41" (2/3) ... [2020-09-25 01:52:42,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7f23d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:52:42, skipping insertion in model container [2020-09-25 01:52:42,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:52:42" (3/3) ... [2020-09-25 01:52:42,584 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product20.cil.c [2020-09-25 01:52:42,596 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:52:42,607 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:52:42,630 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:52:42,658 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:52:42,658 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:52:42,658 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:52:42,659 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:52:42,659 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:52:42,659 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:52:42,659 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:52:42,659 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:52:42,684 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-09-25 01:52:42,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 01:52:42,701 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:52:42,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:52:42,703 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:52:42,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:52:42,711 INFO L82 PathProgramCache]: Analyzing trace with hash -303745462, now seen corresponding path program 1 times [2020-09-25 01:52:42,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:52:42,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462275504] [2020-09-25 01:52:42,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:52:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:43,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:43,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:44,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:45,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:48,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:48,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 01:52:48,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:52:48,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 01:52:48,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:48,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:48,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:52:48,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:48,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 01:52:48,527 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:52:48,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:52:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:48,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:48,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:48,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:52:48,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:48,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 01:52:48,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:48,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:48,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:48,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:48,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 01:52:48,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:52:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:48,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:48,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:48,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:48,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:48,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:52:48,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:48,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:48,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:48,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:48,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:48,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:52:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:48,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:48,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:48,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:48,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:48,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:48,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:48,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:48,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:48,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:48,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:52:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:48,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:48,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:48,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:48,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:48,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:52:48,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:48,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:48,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:48,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:48,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:48,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:52:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:48,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:48,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:48,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:48,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:48,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:52:48,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:48,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:48,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:48,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:48,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:48,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:52:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:48,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:48,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:48,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:48,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:48,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:52:48,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:48,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:48,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:52:48,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:48,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 01:52:48,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:52:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:48,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:48,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:48,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:48,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:48,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:52:48,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:48,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:48,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:52:48,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:48,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:48,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:52:48,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462275504] [2020-09-25 01:52:48,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:52:48,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:52:48,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239558856] [2020-09-25 01:52:48,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:52:48,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:52:48,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:52:48,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:52:48,940 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 3 states. [2020-09-25 01:52:50,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:52:50,514 INFO L93 Difference]: Finished difference Result 436 states and 522 transitions. [2020-09-25 01:52:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:52:50,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 01:52:50,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:52:50,554 INFO L225 Difference]: With dead ends: 436 [2020-09-25 01:52:50,554 INFO L226 Difference]: Without dead ends: 276 [2020-09-25 01:52:50,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:52:50,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-25 01:52:50,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 234. [2020-09-25 01:52:50,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-25 01:52:50,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 253 transitions. [2020-09-25 01:52:50,746 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 253 transitions. Word has length 142 [2020-09-25 01:52:50,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:52:50,748 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 253 transitions. [2020-09-25 01:52:50,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:52:50,748 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 253 transitions. [2020-09-25 01:52:50,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 01:52:50,759 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:52:50,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:52:50,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:52:50,764 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:52:50,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:52:50,764 INFO L82 PathProgramCache]: Analyzing trace with hash 2117068885, now seen corresponding path program 1 times [2020-09-25 01:52:50,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:52:50,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949626257] [2020-09-25 01:52:50,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:52:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:50,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:50,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:52,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:52,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:54,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:55,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:55,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 01:52:55,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:52:55,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 01:52:55,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:55,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:55,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:52:55,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:52:55,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:56,225 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:52:56,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:52:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:56,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:56,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:56,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:52:56,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:56,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 01:52:56,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:56,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:56,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:56,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:56,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:56,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:52:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:56,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:56,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:56,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:56,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:56,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:56,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:56,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:56,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:56,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:56,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:56,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:52:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:56,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:56,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:56,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:56,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:56,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:56,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:56,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:56,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:56,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:56,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:56,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:52:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:56,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:56,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:56,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:56,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:56,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:52:56,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:56,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:56,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:56,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:56,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:56,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:52:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:56,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:56,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:56,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:56,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:56,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:52:56,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:56,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:56,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:56,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:56,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:56,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:52:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:56,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:56,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:56,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:56,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:56,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:56,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:56,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:56,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:52:56,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:56,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:56,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:52:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:56,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:56,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:56,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:56,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:56,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:56,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:56,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:56,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:52:56,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:56,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:56,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:52:56,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949626257] [2020-09-25 01:52:56,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:52:56,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:52:56,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255995854] [2020-09-25 01:52:56,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:52:56,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:52:56,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:52:56,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:52:56,465 INFO L87 Difference]: Start difference. First operand 234 states and 253 transitions. Second operand 4 states. [2020-09-25 01:52:57,103 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:52:57,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:52:57,871 INFO L93 Difference]: Finished difference Result 343 states and 385 transitions. [2020-09-25 01:52:57,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:52:57,872 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 01:52:57,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:52:57,876 INFO L225 Difference]: With dead ends: 343 [2020-09-25 01:52:57,876 INFO L226 Difference]: Without dead ends: 259 [2020-09-25 01:52:57,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:52:57,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-25 01:52:57,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 224. [2020-09-25 01:52:57,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-25 01:52:57,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 240 transitions. [2020-09-25 01:52:57,918 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 240 transitions. Word has length 143 [2020-09-25 01:52:57,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:52:57,918 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 240 transitions. [2020-09-25 01:52:57,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:52:57,919 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 240 transitions. [2020-09-25 01:52:57,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 01:52:57,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:52:57,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:52:57,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:52:57,921 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:52:57,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:52:57,922 INFO L82 PathProgramCache]: Analyzing trace with hash -2011327752, now seen corresponding path program 1 times [2020-09-25 01:52:57,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:52:57,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805189770] [2020-09-25 01:52:57,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:52:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:58,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:58,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:59,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:01,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:02,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:02,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 01:53:02,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:53:02,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 01:53:02,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:02,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:53:02,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:53:02,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:53:02,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:53:03,266 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:53:03,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:53:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:03,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:03,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:03,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:53:03,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:03,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 01:53:03,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:03,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:03,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:03,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:03,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:53:03,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:53:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:03,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:03,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:03,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:53:03,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:03,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:53:03,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:03,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:03,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:03,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:03,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:53:03,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:53:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:03,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:03,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:03,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:53:03,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:03,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:53:03,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:03,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:03,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:03,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:03,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:53:03,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:53:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:03,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:03,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:03,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:53:03,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:03,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:53:03,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:03,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:03,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:03,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:03,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:53:03,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:53:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:03,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:03,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:03,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:53:03,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:03,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:53:03,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:03,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:03,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:03,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:03,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:53:03,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:53:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:03,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:03,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:03,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:53:03,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:03,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:53:03,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:53:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:53:03,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:53:03,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:53:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:03,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:03,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:03,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:53:03,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:03,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:53:03,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:03,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:03,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:53:03,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:03,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:53:03,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:53:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:03,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:03,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:03,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:53:03,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:03,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 01:53:03,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:03,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:03,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:53:03,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:03,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:53:03,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:53:03,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805189770] [2020-09-25 01:53:03,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:53:03,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:53:03,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534981054] [2020-09-25 01:53:03,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:53:03,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:53:03,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:53:03,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:53:03,475 INFO L87 Difference]: Start difference. First operand 224 states and 240 transitions. Second operand 5 states. [2020-09-25 01:53:04,037 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:05,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:53:05,720 INFO L93 Difference]: Finished difference Result 518 states and 601 transitions. [2020-09-25 01:53:05,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:53:05,721 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 01:53:05,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:53:05,727 INFO L225 Difference]: With dead ends: 518 [2020-09-25 01:53:05,727 INFO L226 Difference]: Without dead ends: 404 [2020-09-25 01:53:05,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:53:05,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-25 01:53:05,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 328. [2020-09-25 01:53:05,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-09-25 01:53:05,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 361 transitions. [2020-09-25 01:53:05,809 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 361 transitions. Word has length 156 [2020-09-25 01:53:05,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:53:05,809 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 361 transitions. [2020-09-25 01:53:05,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:53:05,810 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 361 transitions. [2020-09-25 01:53:05,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 01:53:05,812 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:53:05,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:53:05,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:53:05,813 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:53:05,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:53:05,813 INFO L82 PathProgramCache]: Analyzing trace with hash -424012329, now seen corresponding path program 1 times [2020-09-25 01:53:05,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:53:05,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620382513] [2020-09-25 01:53:05,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:53:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:05,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:06,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:07,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:09,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:10,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:10,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 01:53:10,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:53:10,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 01:53:10,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:10,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:53:10,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 01:53:10,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:53:10,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:53:11,303 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:53:11,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:53:11,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:11,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:11,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:11,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:53:11,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:11,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 01:53:11,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:11,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:11,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:11,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:11,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:53:11,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:53:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:11,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:11,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:11,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:53:11,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:11,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:53:11,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:11,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:11,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:11,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:53:11,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:53:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:11,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:11,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:11,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:53:11,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:11,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:53:11,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:11,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:11,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:11,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:11,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:53:11,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:53:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:11,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:11,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:11,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:53:11,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:11,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:53:11,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:11,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:11,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:11,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:53:11,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:53:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:11,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:11,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:11,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:53:11,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:11,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:53:11,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:11,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:11,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:53:11,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 01:53:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:11,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:11,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:11,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:53:11,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:11,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:53:11,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:53:11,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:11,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:53:11,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:53:11,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 01:53:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:11,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:11,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:11,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:53:11,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:11,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:53:11,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:11,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:53:11,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:11,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:53:11,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:53:11,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 01:53:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:53:11,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:53:11,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:53:11,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:53:11,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:53:11,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:53:11,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:53:11,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:53:11,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:53:11,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:53:11,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:53:11,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:53:11,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620382513] [2020-09-25 01:53:11,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:53:11,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:53:11,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528273145] [2020-09-25 01:53:11,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:53:11,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:53:11,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:53:11,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:53:11,660 INFO L87 Difference]: Start difference. First operand 328 states and 361 transitions. Second operand 9 states. [2020-09-25 01:53:12,389 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:13,511 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:53:13,862 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:53:14,181 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:14,536 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:53:14,845 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:53:15,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:53:15,119 INFO L93 Difference]: Finished difference Result 527 states and 614 transitions. [2020-09-25 01:53:15,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 01:53:15,119 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 01:53:15,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:53:15,121 INFO L225 Difference]: With dead ends: 527 [2020-09-25 01:53:15,121 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 01:53:15,126 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-25 01:53:15,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 01:53:15,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 01:53:15,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 01:53:15,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 01:53:15,128 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-09-25 01:53:15,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:53:15,128 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 01:53:15,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:53:15,128 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 01:53:15,128 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 01:53:15,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:53:15,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 01:53:15,280 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-25 01:53:15,442 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:15,604 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:15,767 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:16,106 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 01:53:16,449 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 01:53:16,788 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 01:53:17,071 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-25 01:53:17,242 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:17,395 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:17,547 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:17,809 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 6 [2020-09-25 01:53:17,947 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-25 01:53:18,108 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:18,422 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-25 01:53:18,736 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-25 01:53:19,041 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-25 01:53:19,183 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:53:19,329 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:19,482 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:19,632 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:19,782 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:19,931 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:20,077 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:20,228 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:20,375 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:20,529 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:20,677 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:20,825 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:20,969 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:21,119 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:21,270 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:21,414 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:21,565 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:21,713 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:21,862 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:22,010 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:22,165 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:22,310 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:22,459 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:22,612 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:22,761 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:23,081 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 01:53:23,392 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 01:53:23,702 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 01:53:23,933 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-25 01:53:24,184 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:24,333 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:24,481 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:24,641 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:24,789 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:24,937 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:25,284 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:25,452 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:25,601 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:25,746 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:25,895 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:26,044 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:26,193 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:26,615 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 7 [2020-09-25 01:53:26,821 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-25 01:53:27,258 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 11 [2020-09-25 01:53:27,476 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-25 01:53:27,738 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-25 01:53:27,931 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 8 [2020-09-25 01:53:28,200 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:53:28,407 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1