/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:27:54,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:27:54,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:27:54,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:27:54,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:27:54,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:27:54,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:27:54,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:27:54,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:27:54,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:27:54,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:27:54,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:27:54,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:27:54,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:27:54,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:27:54,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:27:54,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:27:54,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:27:54,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:27:54,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:27:54,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:27:54,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:27:54,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:27:54,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:27:54,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:27:54,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:27:54,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:27:54,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:27:54,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:27:54,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:27:54,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:27:54,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:27:54,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:27:54,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:27:54,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:27:54,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:27:54,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:27:54,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:27:54,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:27:54,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:27:54,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:27:54,761 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:27:54,806 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:27:54,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:27:54,808 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:27:54,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:27:54,808 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:27:54,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:27:54,809 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:27:54,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:27:54,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:27:54,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:27:54,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:27:54,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:27:54,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:27:54,812 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:27:54,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:27:54,812 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:27:54,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:27:54,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:27:54,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:27:54,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:27:54,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:27:54,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:27:54,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:27:54,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:27:54,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:27:54,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:27:54,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:27:54,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:27:54,815 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:27:54,815 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:27:55,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:27:55,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:27:55,317 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:27:55,322 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:27:55,323 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:27:55,324 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c [2020-09-25 07:27:55,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aac96ecdd/fa5a6d23ca294f68a5bd91b101a41888/FLAG1e5913c37 [2020-09-25 07:27:56,035 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:27:56,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c [2020-09-25 07:27:56,050 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aac96ecdd/fa5a6d23ca294f68a5bd91b101a41888/FLAG1e5913c37 [2020-09-25 07:27:56,324 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aac96ecdd/fa5a6d23ca294f68a5bd91b101a41888 [2020-09-25 07:27:56,337 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:27:56,342 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:27:56,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:27:56,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:27:56,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:27:56,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:27:56" (1/1) ... [2020-09-25 07:27:56,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53352fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:56, skipping insertion in model container [2020-09-25 07:27:56,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:27:56" (1/1) ... [2020-09-25 07:27:56,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:27:56,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:27:56,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:27:56,874 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:27:57,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:27:57,066 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:27:57,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:57 WrapperNode [2020-09-25 07:27:57,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:27:57,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:27:57,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:27:57,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:27:57,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:57" (1/1) ... [2020-09-25 07:27:57,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:57" (1/1) ... [2020-09-25 07:27:57,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:57" (1/1) ... [2020-09-25 07:27:57,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:57" (1/1) ... [2020-09-25 07:27:57,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:57" (1/1) ... [2020-09-25 07:27:57,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:57" (1/1) ... [2020-09-25 07:27:57,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:57" (1/1) ... [2020-09-25 07:27:57,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:27:57,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:27:57,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:27:57,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:27:57,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:27:57,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:27:57,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:27:57,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:27:57,250 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:27:57,250 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:27:57,250 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:27:57,251 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:27:57,251 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:27:57,251 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 07:27:57,251 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:27:57,251 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:27:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:27:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:27:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:27:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:27:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 07:27:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:27:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:27:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:27:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:27:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:27:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:27:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:27:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:27:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:27:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:27:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:27:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:27:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:27:57,255 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:27:57,255 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:27:57,255 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:27:57,255 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:27:57,255 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:27:57,255 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:27:57,255 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:27:57,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:27:57,256 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:27:57,256 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:27:57,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:27:57,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 07:27:57,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 07:27:57,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:27:57,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:27:57,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:27:57,257 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:27:57,257 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:27:57,257 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:27:57,257 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:27:57,257 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:27:57,257 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 07:27:57,258 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:27:57,258 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:27:57,258 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:27:57,258 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:27:57,258 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:27:57,258 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:27:57,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 07:27:57,259 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:27:57,259 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:27:57,259 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:27:57,259 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:27:57,259 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 07:27:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 07:27:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:27:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 07:27:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:27:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:27:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:27:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:27:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:27:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:27:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:27:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:27:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:27:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:27:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:27:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:27:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:27:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:27:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:27:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:27:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:27:57,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:27:57,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:27:57,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:27:57,263 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:27:57,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:27:57,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:27:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:27:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:27:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:27:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:27:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:27:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:27:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:27:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:27:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:27:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:27:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:27:58,544 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:27:58,545 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:27:58,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:27:58 BoogieIcfgContainer [2020-09-25 07:27:58,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:27:58,554 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:27:58,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:27:58,558 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:27:58,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:27:56" (1/3) ... [2020-09-25 07:27:58,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c77902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:27:58, skipping insertion in model container [2020-09-25 07:27:58,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:27:57" (2/3) ... [2020-09-25 07:27:58,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c77902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:27:58, skipping insertion in model container [2020-09-25 07:27:58,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:27:58" (3/3) ... [2020-09-25 07:27:58,563 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product62.cil.c [2020-09-25 07:27:58,575 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:27:58,588 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:27:58,611 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:27:58,649 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:27:58,649 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:27:58,649 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:27:58,650 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:27:58,650 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:27:58,650 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:27:58,650 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:27:58,650 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:27:58,682 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states. [2020-09-25 07:27:58,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 07:27:58,702 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:27:58,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:27:58,704 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:27:58,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:27:58,712 INFO L82 PathProgramCache]: Analyzing trace with hash 978294910, now seen corresponding path program 1 times [2020-09-25 07:27:58,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:27:58,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1951087223] [2020-09-25 07:27:58,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:27:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:27:59,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:27:59,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:00,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:02,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:03,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:04,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:04,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 07:28:04,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:28:04,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 07:28:04,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:04,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:04,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:04,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:28:04,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:04,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 07:28:04,569 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:28:04,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:28:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:04,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:04,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:04,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:28:04,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:04,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-25 07:28:04,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:04,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:04,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:04,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:04,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:04,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:04,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:28:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:04,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:04,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:04,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:04,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:04,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:28:04,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:04,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:04,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:04,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:04,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:04,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:04,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:28:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:04,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:04,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:04,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:04,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:04,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:28:04,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:04,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:04,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:04,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:04,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:04,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:04,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:28:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:04,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:04,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:04,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:04,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:04,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:28:04,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:04,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:04,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:04,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:04,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:04,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:04,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:28:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:04,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:04,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:04,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:04,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:04,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:28:04,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:04,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:04,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:04,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:04,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:04,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:04,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:28:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:04,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:04,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:04,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:04,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:04,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:28:04,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:04,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:04,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:04,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:28:04,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:04,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:04,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:28:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:04,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:04,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:04,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:04,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:04,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:28:04,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:04,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:04,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:04,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:28:04,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:04,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:28:04,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:28:04,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1951087223] [2020-09-25 07:28:04,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:28:04,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:28:04,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171863972] [2020-09-25 07:28:04,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:28:04,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:28:05,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:28:05,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:28:05,011 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 3 states. [2020-09-25 07:28:07,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:28:07,043 INFO L93 Difference]: Finished difference Result 560 states and 667 transitions. [2020-09-25 07:28:07,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:28:07,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 07:28:07,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:28:07,083 INFO L225 Difference]: With dead ends: 560 [2020-09-25 07:28:07,084 INFO L226 Difference]: Without dead ends: 340 [2020-09-25 07:28:07,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:28:07,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-25 07:28:07,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 294. [2020-09-25 07:28:07,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-09-25 07:28:07,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 323 transitions. [2020-09-25 07:28:07,291 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 323 transitions. Word has length 142 [2020-09-25 07:28:07,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:28:07,293 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 323 transitions. [2020-09-25 07:28:07,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:28:07,293 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 323 transitions. [2020-09-25 07:28:07,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 07:28:07,305 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:28:07,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:28:07,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:28:07,306 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:28:07,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:28:07,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1922789208, now seen corresponding path program 1 times [2020-09-25 07:28:07,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:28:07,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [84559724] [2020-09-25 07:28:07,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:28:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:07,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:07,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:09,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:09,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:11,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:12,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:12,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 07:28:12,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:28:12,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 07:28:12,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:12,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:12,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:28:12,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:28:12,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:28:12,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:28:12,832 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:28:12,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:28:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:12,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:12,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:12,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:28:12,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:12,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 07:28:12,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:12,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:12,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:12,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:12,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:12,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:13,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:28:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:13,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:13,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:13,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:13,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:13,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:13,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:13,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:13,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:13,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:13,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:13,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:13,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:28:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:13,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:13,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:13,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:13,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:13,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:28:13,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:13,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:13,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:13,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:13,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:13,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:28:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:13,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:13,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:13,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:13,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:13,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:28:13,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:13,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:13,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:13,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:13,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:13,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:13,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:28:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:13,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:13,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:13,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:13,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:13,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:13,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:13,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:13,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:13,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:13,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:13,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:13,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:28:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:13,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:13,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:13,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:13,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:13,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:28:13,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:13,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:13,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:13,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:28:13,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:13,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:13,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:28:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:13,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:13,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:13,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:13,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:13,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:13,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:13,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:13,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:13,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:28:13,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:13,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:28:13,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:28:13,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [84559724] [2020-09-25 07:28:13,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:28:13,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:28:13,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610970667] [2020-09-25 07:28:13,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:28:13,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:28:13,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:28:13,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:28:13,083 INFO L87 Difference]: Start difference. First operand 294 states and 323 transitions. Second operand 4 states. [2020-09-25 07:28:13,674 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:28:15,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:28:15,001 INFO L93 Difference]: Finished difference Result 473 states and 538 transitions. [2020-09-25 07:28:15,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:28:15,002 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 07:28:15,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:28:15,005 INFO L225 Difference]: With dead ends: 473 [2020-09-25 07:28:15,005 INFO L226 Difference]: Without dead ends: 323 [2020-09-25 07:28:15,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:28:15,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-09-25 07:28:15,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 284. [2020-09-25 07:28:15,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-09-25 07:28:15,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 310 transitions. [2020-09-25 07:28:15,073 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 310 transitions. Word has length 143 [2020-09-25 07:28:15,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:28:15,075 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 310 transitions. [2020-09-25 07:28:15,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:28:15,075 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 310 transitions. [2020-09-25 07:28:15,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 07:28:15,077 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:28:15,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:28:15,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:28:15,079 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:28:15,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:28:15,080 INFO L82 PathProgramCache]: Analyzing trace with hash -312592452, now seen corresponding path program 1 times [2020-09-25 07:28:15,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:28:15,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287326096] [2020-09-25 07:28:15,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:28:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:15,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:15,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:15,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:16,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:20,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:20,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 07:28:20,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:28:20,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 07:28:20,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:20,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:28:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 07:28:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:28:20,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:20,452 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:28:20,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:28:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:20,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:20,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:20,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:28:20,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:20,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 07:28:20,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:20,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:20,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:20,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:20,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:20,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:20,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:28:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:20,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:20,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:20,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:20,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:20,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:28:20,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:20,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:20,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:20,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:20,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:20,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:28:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:20,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:20,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:20,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:20,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:20,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:28:20,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:20,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:20,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:20,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:20,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:20,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:28:20,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:28:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:20,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:20,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:20,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:20,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:20,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:28:20,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:20,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:20,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:20,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:20,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:20,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:28:20,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:28:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:20,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:20,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:20,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:20,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:20,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:20,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:20,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:20,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:20,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:20,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:20,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:20,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:28:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:20,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:20,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:20,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:28:20,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:20,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:28:20,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:20,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:20,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:28:20,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:20,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:28:20,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:20,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 07:28:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:20,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:20,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:20,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:20,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:20,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:28:20,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:20,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:20,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:20,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:28:20,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:20,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:28:20,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:28:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:20,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:20,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:20,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:20,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:20,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:28:20,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:20,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:20,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:20,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:28:20,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:20,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:28:20,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:28:20,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287326096] [2020-09-25 07:28:20,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:28:20,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:28:20,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105624223] [2020-09-25 07:28:20,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:28:20,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:28:20,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:28:20,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:28:20,665 INFO L87 Difference]: Start difference. First operand 284 states and 310 transitions. Second operand 5 states. [2020-09-25 07:28:21,241 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:28:22,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:28:22,582 INFO L93 Difference]: Finished difference Result 519 states and 600 transitions. [2020-09-25 07:28:22,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:28:22,583 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 07:28:22,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:28:22,587 INFO L225 Difference]: With dead ends: 519 [2020-09-25 07:28:22,587 INFO L226 Difference]: Without dead ends: 345 [2020-09-25 07:28:22,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:28:22,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-25 07:28:22,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 284. [2020-09-25 07:28:22,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-09-25 07:28:22,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 309 transitions. [2020-09-25 07:28:22,633 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 309 transitions. Word has length 156 [2020-09-25 07:28:22,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:28:22,634 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 309 transitions. [2020-09-25 07:28:22,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:28:22,635 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 309 transitions. [2020-09-25 07:28:22,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 07:28:22,637 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:28:22,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:28:22,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:28:22,638 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:28:22,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:28:22,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1643670934, now seen corresponding path program 1 times [2020-09-25 07:28:22,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:28:22,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1088252303] [2020-09-25 07:28:22,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:28:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:22,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:22,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:23,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:23,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:26,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:26,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:27,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:27,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:27,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:27,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:27,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 07:28:27,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 07:28:27,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 07:28:27,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:27,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:27,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:28:27,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-25 07:28:27,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:28:27,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:28:28,061 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:28:28,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:28:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:28,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:28,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:28,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:28:28,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:28,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 07:28:28,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:28,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:28,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:28,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:28,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:28,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:28,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:28:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:28,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:28,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:28,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:28,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:28,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:28:28,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:28,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:28,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:28,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:28,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:28,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:28,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:28:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:28,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:28,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:28,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:28,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:28,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:28,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:28,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:28,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:28,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:28:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:28,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:28,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:28,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:28,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:28,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:28:28,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:28,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:28,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:28,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:28,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:28,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:28,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:28:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:28,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:28,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:28,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:28,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:28,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:28,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:28,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:28,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:28,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:28,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:28,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:28,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:28:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:28,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:28,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:28,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:28:28,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:28,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:28:28,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:28,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:28,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:28,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:28,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:28,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:28:28,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:28:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:28,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:28,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:28,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:28,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 07:28:28,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:28:28,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 07:28:28,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:28,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:28,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:28:28,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 07:28:28,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:28:28,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:28,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:28:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:28,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:28,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:28,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:28,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 07:28:28,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:28:28,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:28:28,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:28,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:28,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:28:28,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:28:28,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:28:28,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:28,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:28:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:28,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:28,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:28,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:28:28,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:28,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:28:28,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:28,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:28,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:28:28,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:28:28,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:28:28,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:28,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:28:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:28,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:28,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:28,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:28,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:28,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:28:28,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:28,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:28,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:28:28,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:28,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:28:28,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:28,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 07:28:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:28,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:28,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:28,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:28,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:28,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:28,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:28,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:28,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:28,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:28:28,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:28,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:28:28,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 07:28:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:28,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:28,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:28,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:28,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:28,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:28,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:28,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:28,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:28,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:28:28,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:28,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:28,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:28:28,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1088252303] [2020-09-25 07:28:28,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:28:28,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:28:28,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824452971] [2020-09-25 07:28:28,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:28:28,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:28:28,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:28:28,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:28:28,556 INFO L87 Difference]: Start difference. First operand 284 states and 309 transitions. Second operand 7 states. [2020-09-25 07:28:29,144 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:28:30,839 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:28:32,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:28:32,253 INFO L93 Difference]: Finished difference Result 713 states and 845 transitions. [2020-09-25 07:28:32,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 07:28:32,254 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 174 [2020-09-25 07:28:32,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:28:32,259 INFO L225 Difference]: With dead ends: 713 [2020-09-25 07:28:32,260 INFO L226 Difference]: Without dead ends: 539 [2020-09-25 07:28:32,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-25 07:28:32,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-09-25 07:28:32,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 412. [2020-09-25 07:28:32,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-09-25 07:28:32,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 444 transitions. [2020-09-25 07:28:32,325 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 444 transitions. Word has length 174 [2020-09-25 07:28:32,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:28:32,326 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 444 transitions. [2020-09-25 07:28:32,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:28:32,326 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 444 transitions. [2020-09-25 07:28:32,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-25 07:28:32,329 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:28:32,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:28:32,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:28:32,330 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:28:32,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:28:32,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1767633038, now seen corresponding path program 1 times [2020-09-25 07:28:32,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:28:32,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1046490129] [2020-09-25 07:28:32,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:28:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:32,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:33,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:33,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:33,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:33,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:34,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:37,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:37,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 07:28:37,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:28:37,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 07:28:37,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:37,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:37,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:28:37,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-25 07:28:37,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 07:28:37,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:37,729 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:28:37,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:28:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:37,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:37,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:37,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:28:37,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:37,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 07:28:37,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:37,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:37,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:37,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:37,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:37,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:28:37,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:28:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:37,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:37,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:37,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:37,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:37,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:28:37,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:37,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:37,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:37,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:37,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:37,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:37,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:28:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:37,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:37,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:37,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:37,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:37,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:37,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:37,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:37,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:37,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:37,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:37,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:37,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:28:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:37,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:37,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:37,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:37,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:37,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:28:37,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:37,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:37,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:37,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:28:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:37,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:37,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:37,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:37,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:37,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:37,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:37,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:37,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:37,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:37,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:37,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:37,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 07:28:37,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:37,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:37,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:37,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:28:37,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:37,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:28:37,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:37,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:37,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:37,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:37,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:37,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:37,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:28:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:37,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:37,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:37,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:38,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:38,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 07:28:38,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:28:38,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-25 07:28:38,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:38,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:28:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 07:28:38,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:38,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:28:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:38,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:38,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:38,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:38,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 07:28:38,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:28:38,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 07:28:38,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:38,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:38,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:28:38,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:38,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:28:38,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:38,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:28:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:38,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:38,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:38,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:28:38,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:38,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 07:28:38,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:38,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:38,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:28:38,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:38,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:28:38,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:38,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:28:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:38,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:38,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:38,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:28:38,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:38,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 07:28:38,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:38,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:28:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:28:38,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:38,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:28:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:38,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:38,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:38,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:28:38,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:38,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:28:38,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:38,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:38,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:38,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:38,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:38,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:38,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:28:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:38,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:38,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:38,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:38,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:38,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:28:38,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:38,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:38,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:28:38,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:38,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:28:38,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:38,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-25 07:28:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:38,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:38,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:38,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:38,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:38,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:28:38,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:38,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:38,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:28:38,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:38,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:28:38,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:28:38,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-25 07:28:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:38,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:38,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:38,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:38,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:38,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:28:38,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:38,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:28:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:38,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:28:38,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:28:38,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:28:38,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1046490129] [2020-09-25 07:28:38,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:28:38,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:28:38,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221704133] [2020-09-25 07:28:38,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:28:38,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:28:38,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:28:38,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:28:38,464 INFO L87 Difference]: Start difference. First operand 412 states and 444 transitions. Second operand 10 states. [2020-09-25 07:28:39,061 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:28:40,749 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:28:41,082 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:28:41,493 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:28:42,864 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188