/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:44:31,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:44:31,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:44:31,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:44:31,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:44:31,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:44:31,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:44:31,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:44:31,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:44:31,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:44:31,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:44:31,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:44:31,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:44:31,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:44:31,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:44:31,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:44:31,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:44:31,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:44:31,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:44:31,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:44:31,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:44:31,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:44:31,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:44:31,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:44:31,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:44:31,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:44:31,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:44:31,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:44:31,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:44:31,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:44:31,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:44:31,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:44:31,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:44:31,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:44:31,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:44:31,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:44:31,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:44:31,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:44:31,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:44:31,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:44:31,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:44:31,778 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 12:44:31,800 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:44:31,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:44:31,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:44:31,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:44:31,802 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:44:31,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:44:31,802 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:44:31,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:44:31,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:44:31,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:44:31,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:44:31,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:44:31,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:44:31,804 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:44:31,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:44:31,804 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:44:31,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:44:31,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:44:31,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:44:31,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:44:31,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:44:31,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:44:31,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:44:31,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:44:31,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:44:31,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:44:31,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:44:31,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:44:31,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:44:31,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 12:44:32,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:44:32,096 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:44:32,100 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:44:32,101 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:44:32,102 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:44:32,103 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-10-13 12:44:32,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7911d35a4/c26ecbe0c3cc41609ac6026ae9be2503/FLAG46b7c41c7 [2020-10-13 12:44:32,710 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:44:32,711 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-10-13 12:44:32,727 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7911d35a4/c26ecbe0c3cc41609ac6026ae9be2503/FLAG46b7c41c7 [2020-10-13 12:44:32,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7911d35a4/c26ecbe0c3cc41609ac6026ae9be2503 [2020-10-13 12:44:33,009 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:44:33,011 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:44:33,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:44:33,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:44:33,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:44:33,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:44:33" (1/1) ... [2020-10-13 12:44:33,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53926226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:33, skipping insertion in model container [2020-10-13 12:44:33,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:44:33" (1/1) ... [2020-10-13 12:44:33,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:44:33,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:44:33,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:44:33,549 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:44:33,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:44:33,725 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:44:33,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:33 WrapperNode [2020-10-13 12:44:33,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:44:33,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:44:33,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:44:33,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:44:33,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:33" (1/1) ... [2020-10-13 12:44:33,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:33" (1/1) ... [2020-10-13 12:44:33,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:33" (1/1) ... [2020-10-13 12:44:33,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:33" (1/1) ... [2020-10-13 12:44:33,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:33" (1/1) ... [2020-10-13 12:44:33,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:33" (1/1) ... [2020-10-13 12:44:33,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:33" (1/1) ... [2020-10-13 12:44:33,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:44:33,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:44:33,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:44:33,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:44:33,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:44:33,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:44:33,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:44:33,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-13 12:44:33,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-13 12:44:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-13 12:44:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-13 12:44:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-13 12:44:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-13 12:44:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-13 12:44:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 12:44:33,887 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-13 12:44:33,888 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-13 12:44:33,888 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-13 12:44:33,888 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:44:33,888 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-13 12:44:33,888 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-13 12:44:33,888 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2020-10-13 12:44:33,889 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2020-10-13 12:44:33,889 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2020-10-13 12:44:33,889 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2020-10-13 12:44:33,889 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2020-10-13 12:44:33,889 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2020-10-13 12:44:33,889 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-13 12:44:33,890 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2020-10-13 12:44:33,890 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2020-10-13 12:44:33,890 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-13 12:44:33,890 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-13 12:44:33,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-13 12:44:33,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-13 12:44:33,890 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-13 12:44:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-13 12:44:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-13 12:44:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-13 12:44:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-13 12:44:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-13 12:44:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-13 12:44:33,891 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-13 12:44:33,892 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-13 12:44:33,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-13 12:44:33,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-13 12:44:33,892 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-13 12:44:33,892 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-13 12:44:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-13 12:44:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-13 12:44:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-13 12:44:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-13 12:44:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-13 12:44:33,893 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-13 12:44:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:44:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:44:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 12:44:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-13 12:44:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 12:44:33,894 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 12:44:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-13 12:44:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 12:44:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 12:44:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 12:44:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 12:44:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-13 12:44:33,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 12:44:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-13 12:44:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-13 12:44:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 12:44:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-13 12:44:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-13 12:44:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 12:44:33,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-13 12:44:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-13 12:44:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 12:44:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-13 12:44:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-13 12:44:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-13 12:44:33,897 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-13 12:44:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-13 12:44:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-13 12:44:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-13 12:44:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-13 12:44:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-13 12:44:33,898 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-13 12:44:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:44:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-13 12:44:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-13 12:44:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-13 12:44:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-13 12:44:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-13 12:44:33,899 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-13 12:44:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-13 12:44:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-13 12:44:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-13 12:44:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-13 12:44:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-13 12:44:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-13 12:44:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2020-10-13 12:44:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-13 12:44:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2020-10-13 12:44:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2020-10-13 12:44:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-13 12:44:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2020-10-13 12:44:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2020-10-13 12:44:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-13 12:44:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2020-10-13 12:44:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2020-10-13 12:44:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2020-10-13 12:44:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-13 12:44:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-13 12:44:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-13 12:44:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:44:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 12:44:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:44:34,983 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:44:34,983 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 12:44:34,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:44:34 BoogieIcfgContainer [2020-10-13 12:44:34,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:44:34,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:44:34,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:44:34,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:44:34,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:44:33" (1/3) ... [2020-10-13 12:44:34,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbdcae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:44:34, skipping insertion in model container [2020-10-13 12:44:34,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:33" (2/3) ... [2020-10-13 12:44:34,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbdcae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:44:34, skipping insertion in model container [2020-10-13 12:44:34,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:44:34" (3/3) ... [2020-10-13 12:44:34,998 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c [2020-10-13 12:44:35,008 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:44:35,016 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:44:35,030 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:44:35,056 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:44:35,056 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:44:35,056 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:44:35,056 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:44:35,057 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:44:35,057 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:44:35,057 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:44:35,057 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:44:35,082 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states. [2020-10-13 12:44:35,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-13 12:44:35,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:44:35,097 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:44:35,097 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:44:35,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:44:35,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1384301403, now seen corresponding path program 1 times [2020-10-13 12:44:35,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:44:35,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119020758] [2020-10-13 12:44:35,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:44:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:35,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:35,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:36,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:38,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:38,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 12:44:38,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:44:38,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3322 [2020-10-13 12:44:38,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:38,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:38,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 12:44:38,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:38,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 12:44:39,210 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 12:44:39,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:44:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:39,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:39,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:39,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:39,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:39,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 12:44:39,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:39,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:39,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:39,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:39,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:39,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:44:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:39,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:39,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:39,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:39,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:39,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:39,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:39,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:39,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:39,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:39,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:39,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 12:44:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:39,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:39,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:39,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 12:44:39,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:39,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:44:39,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:39,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:39,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:39,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:39,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:39,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:44:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:39,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:39,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:39,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:39,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:39,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:39,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:39,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:39,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:39,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:44:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:39,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:39,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:39,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:39,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:39,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:39,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:39,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:39,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:39,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:39,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:39,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 12:44:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:39,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:39,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:39,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:39,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:39,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:39,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:39,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:39,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:39,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:39,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:39,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:44:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:39,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:39,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:39,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:39,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:39,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:39,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:39,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:39,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:39,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:39,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:39,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 12:44:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:39,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:39,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:39,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:39,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:39,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:39,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:39,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:39,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:39,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:39,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:39,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-13 12:44:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:39,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:39,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:39,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:39,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:39,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:39,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:39,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:39,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:39,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:39,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:39,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:44:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:39,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:39,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:39,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:39,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:39,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:39,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:39,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:39,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:39,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:39,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:39,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 12:44:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:39,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:39,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:39,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:39,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:39,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:39,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:39,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:39,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 12:44:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:39,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:39,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:39,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:39,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:39,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:39,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:39,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:39,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:39,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:39,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:39,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 12:44:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:39,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:39,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:39,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:39,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:39,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:39,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:39,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:39,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:39,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:39,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:39,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 12:44:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:39,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:39,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:39,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:39,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:39,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:39,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:39,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:39,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:39,521 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-13 12:44:39,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119020758] [2020-10-13 12:44:39,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:44:39,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 12:44:39,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942540896] [2020-10-13 12:44:39,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 12:44:39,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:44:39,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 12:44:39,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:44:39,556 INFO L87 Difference]: Start difference. First operand 248 states. Second operand 5 states. [2020-10-13 12:44:42,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:44:42,888 INFO L93 Difference]: Finished difference Result 448 states and 591 transitions. [2020-10-13 12:44:42,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 12:44:42,890 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 84 [2020-10-13 12:44:42,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:44:42,907 INFO L225 Difference]: With dead ends: 448 [2020-10-13 12:44:42,907 INFO L226 Difference]: Without dead ends: 254 [2020-10-13 12:44:42,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-13 12:44:42,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-13 12:44:43,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 205. [2020-10-13 12:44:43,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 12:44:43,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 252 transitions. [2020-10-13 12:44:43,065 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 252 transitions. Word has length 84 [2020-10-13 12:44:43,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:44:43,066 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 252 transitions. [2020-10-13 12:44:43,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 12:44:43,066 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 252 transitions. [2020-10-13 12:44:43,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-13 12:44:43,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:44:43,072 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:44:43,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:44:43,072 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:44:43,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:44:43,073 INFO L82 PathProgramCache]: Analyzing trace with hash 435784209, now seen corresponding path program 1 times [2020-10-13 12:44:43,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:44:43,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302069469] [2020-10-13 12:44:43,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:44:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:43,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:43,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:43,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:45,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:45,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 12:44:45,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:44:45,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2819 [2020-10-13 12:44:45,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:45,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:45,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-13 12:44:45,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:44:45,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:46,347 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 12:44:46,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:44:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:46,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:46,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:46,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:46,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:46,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:44:46,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:46,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:46,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:46,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:46,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:46,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:44:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:46,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:46,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:46,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:46,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:46,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:46,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:46,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:46,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:46,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:46,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:46,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 12:44:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:46,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:46,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:46,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 12:44:46,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:46,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 12:44:46,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:46,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:46,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:46,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:46,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:46,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:44:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:46,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:46,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:46,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:46,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:46,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:46,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:46,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:46,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:46,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:46,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:46,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:44:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:46,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:46,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:46,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:46,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:46,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:46,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:46,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:46,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:46,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:46,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:46,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 12:44:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:46,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:46,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:46,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:46,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:46,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:46,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:46,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:46,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:46,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:46,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:46,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:44:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:46,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:46,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:46,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:46,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:46,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:46,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:46,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:46,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:46,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:46,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:46,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 12:44:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:46,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:46,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:46,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:46,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:46,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:46,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:46,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:46,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-13 12:44:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:46,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:46,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:46,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:46,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:46,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:46,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:46,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:46,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:46,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:46,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:46,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:44:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:46,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:46,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:46,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:46,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:46,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:46,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:46,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:46,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:46,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:46,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:46,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 12:44:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:46,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:46,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:46,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:46,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:46,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:46,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:46,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:46,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:46,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:46,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:46,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 12:44:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:46,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:46,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:46,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:46,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:46,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:46,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:46,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:46,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 12:44:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:46,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:46,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:46,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:46,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:46,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:46,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:46,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:46,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:46,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:46,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:46,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 12:44:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:46,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:46,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:46,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:46,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:46,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:46,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:46,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:46,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:46,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:46,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:46,545 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-13 12:44:46,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302069469] [2020-10-13 12:44:46,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:44:46,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 12:44:46,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908419109] [2020-10-13 12:44:46,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 12:44:46,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:44:46,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 12:44:46,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 12:44:46,549 INFO L87 Difference]: Start difference. First operand 205 states and 252 transitions. Second operand 6 states. [2020-10-13 12:44:47,317 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-13 12:44:49,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:44:49,115 INFO L93 Difference]: Finished difference Result 372 states and 469 transitions. [2020-10-13 12:44:49,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 12:44:49,116 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 85 [2020-10-13 12:44:49,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:44:49,120 INFO L225 Difference]: With dead ends: 372 [2020-10-13 12:44:49,120 INFO L226 Difference]: Without dead ends: 238 [2020-10-13 12:44:49,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-13 12:44:49,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-13 12:44:49,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 196. [2020-10-13 12:44:49,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-10-13 12:44:49,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 240 transitions. [2020-10-13 12:44:49,182 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 240 transitions. Word has length 85 [2020-10-13 12:44:49,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:44:49,183 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 240 transitions. [2020-10-13 12:44:49,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 12:44:49,183 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 240 transitions. [2020-10-13 12:44:49,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-13 12:44:49,185 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:44:49,185 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:44:49,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:44:49,185 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:44:49,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:44:49,186 INFO L82 PathProgramCache]: Analyzing trace with hash 681264365, now seen corresponding path program 1 times [2020-10-13 12:44:49,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:44:49,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608262965] [2020-10-13 12:44:49,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:44:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:49,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:49,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:50,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:50,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 12:44:50,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:44:50,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1194 [2020-10-13 12:44:50,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:50,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 12:44:50,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:50,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-13 12:44:50,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:50,751 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 12:44:50,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:44:50,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:50,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:50,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:50,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:50,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:50,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 12:44:50,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:50,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:50,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:44:50,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:50,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:44:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:50,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:50,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:50,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:50,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:50,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:50,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:50,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:50,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:50,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:44:50,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:50,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 12:44:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:50,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:50,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:50,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 12:44:50,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:50,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 12:44:50,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:50,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:50,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:50,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 12:44:50,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:50,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:44:50,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:50,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:50,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:50,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:50,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:50,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:44:50,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:50,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:50,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:50,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:50,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:50,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:44:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:50,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:50,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:50,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:50,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:50,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:50,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:50,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:50,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:50,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 12:44:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:50,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:50,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:50,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:50,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:50,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:50,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:50,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:50,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:50,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:50,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:50,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:44:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:50,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:50,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:50,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:50,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:50,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:50,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:50,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:50,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:50,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:50,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:50,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 12:44:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:50,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:50,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:50,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:50,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:50,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:50,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:50,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:50,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:50,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:50,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:50,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-13 12:44:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:50,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:50,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:50,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:50,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:50,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:50,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:50,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:50,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:50,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:50,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:50,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:44:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:50,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:50,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:50,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:50,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:50,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:50,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:50,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:50,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:50,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:44:50,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:50,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 12:44:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:50,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:50,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:50,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:50,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:50,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:50,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:50,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:50,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:50,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:44:50,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:50,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 12:44:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:50,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:50,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:50,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:50,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:50,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:50,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:50,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:50,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:50,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:50,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:50,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 12:44:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:50,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:50,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:50,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:50,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:50,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:50,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:50,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:50,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:50,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:50,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:50,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 12:44:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:50,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:50,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:50,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:50,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:50,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:50,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:50,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:50,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:50,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:50,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:51,047 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-13 12:44:51,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608262965] [2020-10-13 12:44:51,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:44:51,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 12:44:51,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842077493] [2020-10-13 12:44:51,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 12:44:51,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:44:51,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 12:44:51,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 12:44:51,050 INFO L87 Difference]: Start difference. First operand 196 states and 240 transitions. Second operand 6 states. [2020-10-13 12:44:51,471 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-13 12:44:54,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:44:54,885 INFO L93 Difference]: Finished difference Result 572 states and 726 transitions. [2020-10-13 12:44:54,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 12:44:54,886 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2020-10-13 12:44:54,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:44:54,896 INFO L225 Difference]: With dead ends: 572 [2020-10-13 12:44:54,896 INFO L226 Difference]: Without dead ends: 417 [2020-10-13 12:44:54,900 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-13 12:44:54,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-10-13 12:44:55,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 341. [2020-10-13 12:44:55,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-10-13 12:44:55,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 425 transitions. [2020-10-13 12:44:55,033 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 425 transitions. Word has length 90 [2020-10-13 12:44:55,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:44:55,034 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 425 transitions. [2020-10-13 12:44:55,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 12:44:55,034 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 425 transitions. [2020-10-13 12:44:55,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-13 12:44:55,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:44:55,043 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:44:55,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:44:55,043 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:44:55,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:44:55,044 INFO L82 PathProgramCache]: Analyzing trace with hash -326319286, now seen corresponding path program 1 times [2020-10-13 12:44:55,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:44:55,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24575925] [2020-10-13 12:44:55,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:44:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:55,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:56,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:56,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-13 12:44:56,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:56,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 934 [2020-10-13 12:44:56,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:56,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:44:56,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:56,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-13 12:44:56,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:56,462 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 12:44:56,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:44:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:56,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:56,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:56,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:56,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:56,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-13 12:44:56,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:56,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:56,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:56,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:44:56,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:56,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:44:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:56,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:56,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:56,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:56,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:56,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:56,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:56,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:56,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:56,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:44:56,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:56,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 12:44:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:56,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:56,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:56,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 12:44:56,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:56,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 12:44:56,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:56,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:56,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:56,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 12:44:56,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:56,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:44:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:56,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:56,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:56,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:56,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:56,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:56,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:56,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:56,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:56,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:56,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:56,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:44:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:56,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:56,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:56,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:56,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:56,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:56,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:56,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:56,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 12:44:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:56,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:56,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:56,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:56,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:56,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:56,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:56,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:56,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:56,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:56,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:56,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:44:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:56,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:56,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:56,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:56,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:56,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:56,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:56,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:56,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:56,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:56,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:56,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 12:44:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:56,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:56,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:56,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:56,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:56,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:56,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:56,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:56,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:56,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:56,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:56,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-13 12:44:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:56,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:56,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:56,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:56,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:56,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:56,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:56,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:56,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:56,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:56,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:56,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:44:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:56,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:56,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:56,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:56,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:56,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:56,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:56,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:56,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:56,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:44:56,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:56,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 12:44:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:56,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:56,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:56,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:56,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:56,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:56,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:56,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:56,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:56,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:44:56,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:56,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 12:44:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:56,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:56,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:56,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:44:56,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:56,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:56,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:56,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:56,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:56,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:44:56,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:56,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 12:44:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:56,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:56,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:56,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:56,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:56,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:56,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:56,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:56,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:56,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:44:56,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:56,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 12:44:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:56,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:56,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:56,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:56,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:56,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:56,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:44:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:56,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:44:56,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:56,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 12:44:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:56,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:56,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:56,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:56,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:56,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:56,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:56,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:56,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:56,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:56,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:56,815 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-13 12:44:56,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24575925] [2020-10-13 12:44:56,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:44:56,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 12:44:56,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837085765] [2020-10-13 12:44:56,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 12:44:56,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:44:56,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 12:44:56,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-13 12:44:56,818 INFO L87 Difference]: Start difference. First operand 341 states and 425 transitions. Second operand 10 states. [2020-10-13 12:44:57,526 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-13 12:45:00,146 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 212 [2020-10-13 12:45:00,621 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-13 12:45:00,958 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-13 12:45:01,319 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-13 12:45:01,879 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-13 12:45:03,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:45:03,813 INFO L93 Difference]: Finished difference Result 1074 states and 1434 transitions. [2020-10-13 12:45:03,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 12:45:03,814 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-10-13 12:45:03,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:45:03,821 INFO L225 Difference]: With dead ends: 1074 [2020-10-13 12:45:03,822 INFO L226 Difference]: Without dead ends: 774 [2020-10-13 12:45:03,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2020-10-13 12:45:03,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2020-10-13 12:45:03,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 668. [2020-10-13 12:45:03,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2020-10-13 12:45:03,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 841 transitions. [2020-10-13 12:45:03,999 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 841 transitions. Word has length 96 [2020-10-13 12:45:03,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:45:03,999 INFO L479 AbstractCegarLoop]: Abstraction has 668 states and 841 transitions. [2020-10-13 12:45:03,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 12:45:04,000 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 841 transitions. [2020-10-13 12:45:04,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-13 12:45:04,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:45:04,003 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:45:04,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:45:04,004 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:45:04,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:45:04,004 INFO L82 PathProgramCache]: Analyzing trace with hash 635729360, now seen corresponding path program 1 times [2020-10-13 12:45:04,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:45:04,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961942268] [2020-10-13 12:45:04,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:45:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:45:04,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:04,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:04,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:05,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:09,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:45:09,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-13 12:45:09,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:45:09,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 12:45:09,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:45:09,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:45:09,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-13 12:45:09,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:45:09,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:45:09,348 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 12:45:09,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:45:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:45:09,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:09,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:45:09,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:45:09,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:45:09,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 12:45:09,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:45:09,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:45:09,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:45:09,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:45:09,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:45:09,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:45:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:45:09,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:09,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:45:09,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:45:09,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:45:09,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:45:09,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:45:09,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:45:09,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:45:09,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:45:09,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:45:09,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 12:45:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:45:09,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:09,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:45:09,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 12:45:09,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:45:09,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 12:45:09,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:45:09,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:45:09,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:45:09,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:45:09,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:45:09,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:45:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:45:09,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:09,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:45:09,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:45:09,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:45:09,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:45:09,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:45:09,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:45:09,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:45:09,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:45:09,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:45:09,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:45:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:45:09,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:09,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:45:09,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:45:09,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:45:09,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:45:09,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:45:09,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:45:09,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:45:09,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:45:09,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:45:09,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 12:45:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:45:09,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:09,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:45:09,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:45:09,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:45:09,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:45:09,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:45:09,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:45:09,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:45:09,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:45:09,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:45:09,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:45:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:45:09,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:09,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:45:09,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:45:09,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:45:09,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:45:09,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:45:09,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:45:09,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:45:09,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:45:09,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:45:09,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-13 12:45:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:45:09,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:09,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:45:09,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:45:09,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:45:09,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:45:09,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:45:09,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:45:09,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:45:09,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:45:09,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:45:09,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-13 12:45:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:45:09,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:09,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:45:09,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:45:09,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:45:09,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:45:09,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:45:09,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:45:09,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:45:09,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:45:09,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:45:09,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:45:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:45:09,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:09,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:45:09,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:45:09,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:45:09,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:45:09,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:45:09,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:45:09,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:45:09,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:45:09,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:45:09,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 12:45:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:45:09,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:09,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:45:09,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:45:09,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:45:09,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:45:09,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:45:09,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:45:09,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:45:09,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:45:09,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:45:09,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 12:45:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:45:09,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:09,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:45:09,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:45:09,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:45:09,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:45:09,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:45:09,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:45:09,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:45:09,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:45:09,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:45:09,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 12:45:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:45:09,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:09,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:45:09,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:45:09,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:45:09,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:45:09,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:45:09,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:45:09,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:45:09,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:45:09,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:45:09,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 12:45:09,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:45:09,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:09,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:45:09,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:45:09,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:45:09,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:45:09,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:45:09,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:45:09,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:45:09,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:45:09,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:45:09,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 12:45:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:45:09,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:09,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:45:09,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:45:09,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:45:09,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:45:09,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:45:09,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:45:09,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:45:09,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:45:09,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:45:09,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 12:45:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:45:09,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:45:09,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:45:09,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:45:09,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:45:09,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:45:09,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:45:09,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:45:09,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:45:09,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:45:09,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:45:09,600 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-10-13 12:45:09,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961942268] [2020-10-13 12:45:09,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:45:09,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:45:09,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998481513] [2020-10-13 12:45:09,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:45:09,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:45:09,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:45:09,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:45:09,604 INFO L87 Difference]: Start difference. First operand 668 states and 841 transitions. Second operand 8 states. [2020-10-13 12:45:10,101 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-13 12:45:13,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:45:13,536 INFO L93 Difference]: Finished difference Result 1648 states and 2221 transitions. [2020-10-13 12:45:13,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 12:45:13,539 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 100 [2020-10-13 12:45:13,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:45:13,547 INFO L225 Difference]: With dead ends: 1648 [2020-10-13 12:45:13,547 INFO L226 Difference]: Without dead ends: 1021 [2020-10-13 12:45:13,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2020-10-13 12:45:13,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2020-10-13 12:45:13,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 938. [2020-10-13 12:45:13,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 938 states. [2020-10-13 12:45:13,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1186 transitions. [2020-10-13 12:45:13,811 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1186 transitions. Word has length 100 [2020-10-13 12:45:13,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:45:13,813 INFO L479 AbstractCegarLoop]: Abstraction has 938 states and 1186 transitions. [2020-10-13 12:45:13,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:45:13,814 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1186 transitions. [2020-10-13 12:45:13,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-13 12:45:13,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:45:13,817 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:45:13,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:45:13,818 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:45:13,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:45:13,818 INFO L82 PathProgramCache]: Analyzing trace with hash -950611836, now seen corresponding path program 1 times [2020-10-13 12:45:13,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:45:13,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [459445473] [2020-10-13 12:45:13,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:45:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 12:45:13,873 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 12:45:13,874 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 12:45:13,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 12:45:13,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:45:13 BoogieIcfgContainer [2020-10-13 12:45:13,922 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:45:13,924 INFO L168 Benchmark]: Toolchain (without parser) took 40912.52 ms. Allocated memory was 148.4 MB in the beginning and 780.7 MB in the end (delta: 632.3 MB). Free memory was 103.7 MB in the beginning and 164.6 MB in the end (delta: -60.9 MB). Peak memory consumption was 571.4 MB. Max. memory is 7.1 GB. [2020-10-13 12:45:13,925 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 12:45:13,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.72 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 103.3 MB in the beginning and 166.7 MB in the end (delta: -63.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2020-10-13 12:45:13,932 INFO L168 Benchmark]: Boogie Preprocessor took 97.09 ms. Allocated memory is still 205.0 MB. Free memory was 166.7 MB in the beginning and 162.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-10-13 12:45:13,932 INFO L168 Benchmark]: RCFGBuilder took 1165.47 ms. Allocated memory was 205.0 MB in the beginning and 233.3 MB in the end (delta: 28.3 MB). Free memory was 162.1 MB in the beginning and 171.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. [2020-10-13 12:45:13,933 INFO L168 Benchmark]: TraceAbstraction took 38930.97 ms. Allocated memory was 233.3 MB in the beginning and 780.7 MB in the end (delta: 547.4 MB). Free memory was 170.4 MB in the beginning and 164.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 553.2 MB. Max. memory is 7.1 GB. [2020-10-13 12:45:13,946 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 710.72 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 103.3 MB in the beginning and 166.7 MB in the end (delta: -63.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.09 ms. Allocated memory is still 205.0 MB. Free memory was 166.7 MB in the beginning and 162.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1165.47 ms. Allocated memory was 205.0 MB in the beginning and 233.3 MB in the end (delta: 28.3 MB). Free memory was 162.1 MB in the beginning and 171.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 38930.97 ms. Allocated memory was 233.3 MB in the beginning and 780.7 MB in the end (delta: 547.4 MB). Free memory was 170.4 MB in the beginning and 164.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 553.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1022]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L510] int __SELECTED_FEATURE_base ; [L511] int __SELECTED_FEATURE_highWaterSensor ; [L512] int __SELECTED_FEATURE_lowWaterSensor ; [L513] int __SELECTED_FEATURE_methaneQuery ; [L514] int __SELECTED_FEATURE_methaneAlarm ; [L515] int __SELECTED_FEATURE_stopCommand ; [L516] int __SELECTED_FEATURE_startCommand ; [L517] int __GUIDSL_ROOT_PRODUCTION ; [L605] int pumpRunning = 0; [L606] int systemActive = 1; [L1027] int waterLevel = 1; [L1028] int methaneLevelCritical = 0; [L487] int retValue_acc ; [L488] int tmp ; [L492] CALL select_helpers() [L968] __GUIDSL_ROOT_PRODUCTION = 1 [L492] RET select_helpers() [L493] CALL select_features() [L953] __SELECTED_FEATURE_base = 1 [L954] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L954] RET, EXPR select_one() [L954] __SELECTED_FEATURE_highWaterSensor = select_one() [L955] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L955] RET, EXPR select_one() [L955] __SELECTED_FEATURE_lowWaterSensor = select_one() [L956] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L956] RET, EXPR select_one() [L956] __SELECTED_FEATURE_methaneQuery = select_one() [L957] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L957] RET, EXPR select_one() [L957] __SELECTED_FEATURE_methaneAlarm = select_one() [L958] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L958] RET, EXPR select_one() [L958] __SELECTED_FEATURE_stopCommand = select_one() [L959] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L959] RET, EXPR select_one() [L959] __SELECTED_FEATURE_startCommand = select_one() [L493] RET select_features() [L494] CALL, EXPR valid_product() [L973] int retValue_acc ; [L976] retValue_acc = __SELECTED_FEATURE_base [L977] return (retValue_acc); [L494] RET, EXPR valid_product() [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L498] FCALL setup() [L499] CALL runTest() [L478] CALL test() [L521] int splverifierCounter ; [L522] int tmp ; [L523] int tmp___0 ; [L524] int tmp___1 ; [L525] int tmp___2 ; [L528] splverifierCounter = 0 [L530] COND TRUE 1 [L532] COND TRUE splverifierCounter < 4 [L538] tmp = __VERIFIER_nondet_int() [L540] COND TRUE \read(tmp) [L542] CALL waterRise() [L1045] COND TRUE waterLevel < 2 [L1046] waterLevel = waterLevel + 1 [L542] RET waterRise() [L548] tmp___0 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___0)) [L558] tmp___2 = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp___2)) [L570] tmp___1 = __VERIFIER_nondet_int() [L572] COND TRUE \read(tmp___1) [L573] COND TRUE \read(__SELECTED_FEATURE_stopCommand) [L575] CALL stopSystem() [L917] COND FALSE !(\read(pumpRunning)) [L924] systemActive = 0 [L575] RET stopSystem() [L585] CALL timeShift() [L613] COND FALSE !(\read(pumpRunning)) [L620] COND FALSE !(\read(systemActive)) [L628] CALL __utac_acc__Specification3_spec__1() [L985] int tmp ; [L986] int tmp___0 ; [L987] int tmp___1 ; [L991] CALL, EXPR isMethaneLevelCritical() [L1066] int retValue_acc ; [L1069] retValue_acc = methaneLevelCritical [L1070] return (retValue_acc); [L991] RET, EXPR isMethaneLevelCritical() [L991] tmp = isMethaneLevelCritical() [L993] COND FALSE !(\read(tmp)) [L997] CALL, EXPR getWaterLevel() [L1098] int retValue_acc ; [L1101] retValue_acc = waterLevel [L1102] return (retValue_acc); [L997] RET, EXPR getWaterLevel() [L997] tmp___0 = getWaterLevel() [L999] COND TRUE tmp___0 == 2 [L1001] CALL, EXPR isPumpRunning() [L831] int retValue_acc ; [L834] retValue_acc = pumpRunning [L835] return (retValue_acc); [L1001] RET, EXPR isPumpRunning() [L1001] tmp___1 = isPumpRunning() [L1003] COND FALSE !(\read(tmp___1)) [L1007] CALL __automaton_fail() [L1022] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 48 procedures, 301 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 38.8s, OverallIterations: 6, TraceHistogramMax: 6, AutomataDifference: 20.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 854 SDtfs, 2287 SDslu, 258 SDs, 0 SdLazy, 3333 SolverSat, 1837 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 156 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=938occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 356 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 16.4s InterpolantComputationTime, 555 NumberOfCodeBlocks, 555 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 450 ConstructedInterpolants, 0 QuantifiedInterpolants, 161290 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 225/225 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...