/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=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:19:01,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:19:01,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:19:01,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:19:01,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:19:01,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:19:01,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:19:01,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:19:01,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:19:01,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:19:01,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:19:01,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:19:01,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:19:01,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:19:01,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:19:01,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:19:01,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:19:01,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:19:01,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:19:01,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:19:01,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:19:01,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:19:01,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:19:01,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:19:01,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:19:01,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:19:01,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:19:01,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:19:01,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:19:01,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:19:01,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:19:01,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:19:01,953 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:19:01,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:19:01,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:19:01,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:19:01,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:19:01,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:19:01,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:19:01,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:19:01,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:19:01,961 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 05:19:02,007 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:19:02,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:19:02,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:19:02,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:19:02,010 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:19:02,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:19:02,010 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:19:02,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:19:02,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:19:02,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:19:02,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:19:02,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:19:02,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:19:02,013 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:19:02,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:19:02,013 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:19:02,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:19:02,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:19:02,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:19:02,014 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:19:02,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:19:02,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:19:02,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:19:02,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:19:02,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:19:02,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:19:02,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:19:02,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:19:02,016 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:19:02,016 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 05:19:02,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:19:02,528 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:19:02,532 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:19:02,534 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:19:02,535 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:19:02,536 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c [2020-09-25 05:19:02,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea6a8ff12/85b0940eb7d04048984df37566ba4b78/FLAG773902974 [2020-09-25 05:19:03,187 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:19:03,190 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product42.cil.c [2020-09-25 05:19:03,216 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea6a8ff12/85b0940eb7d04048984df37566ba4b78/FLAG773902974 [2020-09-25 05:19:03,474 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea6a8ff12/85b0940eb7d04048984df37566ba4b78 [2020-09-25 05:19:03,488 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:19:03,496 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:19:03,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:19:03,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:19:03,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:19:03,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:19:03" (1/1) ... [2020-09-25 05:19:03,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc704b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:03, skipping insertion in model container [2020-09-25 05:19:03,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:19:03" (1/1) ... [2020-09-25 05:19:03,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:19:03,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:19:04,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:19:04,138 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:19:04,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:19:04,258 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:19:04,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:04 WrapperNode [2020-09-25 05:19:04,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:19:04,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:19:04,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:19:04,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:19:04,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:04" (1/1) ... [2020-09-25 05:19:04,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:04" (1/1) ... [2020-09-25 05:19:04,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:04" (1/1) ... [2020-09-25 05:19:04,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:04" (1/1) ... [2020-09-25 05:19:04,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:04" (1/1) ... [2020-09-25 05:19:04,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:04" (1/1) ... [2020-09-25 05:19:04,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:04" (1/1) ... [2020-09-25 05:19:04,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:19:04,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:19:04,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:19:04,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:19:04,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:04" (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 05:19:04,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:19:04,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:19:04,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:19:04,427 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:19:04,428 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:19:04,428 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:19:04,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:19:04,428 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:19:04,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:19:04,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:19:04,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:19:04,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:19:04,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:19:04,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:19:04,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:19:04,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:19:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:19:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:19:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:19:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:19:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 05:19:04,431 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:19:04,431 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:19:04,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:19:04,431 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:19:04,431 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:19:04,431 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:19:04,432 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:19:04,432 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:19:04,432 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:19:04,432 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 05:19:04,432 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:19:04,432 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:19:04,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:19:04,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:19:04,433 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:19:04,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:19:04,433 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 05:19:04,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:19:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:19:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:19:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:19:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:19:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:19:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:19:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:19:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:19:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:19:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:19:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:19:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:19:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:19:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:19:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:19:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:19:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:19:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:19:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:19:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:19:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:19:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:19:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:19:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:19:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:19:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:19:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:19:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:19:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:19:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:19:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:19:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:19:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:19:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 05:19:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:19:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:19:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:19:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:19:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:19:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:19:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:19:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:19:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 05:19:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:19:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:19:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:19:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:19:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:19:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 05:19:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:19:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:19:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:19:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:19:05,639 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:19:05,639 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:19:05,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:19:05 BoogieIcfgContainer [2020-09-25 05:19:05,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:19:05,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:19:05,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:19:05,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:19:05,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:19:03" (1/3) ... [2020-09-25 05:19:05,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4bad4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:19:05, skipping insertion in model container [2020-09-25 05:19:05,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:04" (2/3) ... [2020-09-25 05:19:05,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4bad4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:19:05, skipping insertion in model container [2020-09-25 05:19:05,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:19:05" (3/3) ... [2020-09-25 05:19:05,661 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product42.cil.c [2020-09-25 05:19:05,673 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:19:05,688 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:19:05,710 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:19:05,754 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:19:05,754 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:19:05,754 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:19:05,754 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:19:05,755 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:19:05,755 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:19:05,755 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:19:05,755 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:19:05,783 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-25 05:19:05,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 05:19:05,801 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:19:05,803 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 05:19:05,803 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:19:05,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:19:05,811 INFO L82 PathProgramCache]: Analyzing trace with hash -66701350, now seen corresponding path program 1 times [2020-09-25 05:19:05,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:19:05,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191054344] [2020-09-25 05:19:05,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:19:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:06,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:06,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:08,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:09,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:11,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:11,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 05:19:11,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:19:11,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 05:19:11,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:11,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:11,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:11,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 05:19:11,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:11,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 05:19:11,756 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:19:11,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:19:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:11,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:11,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:11,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:19:11,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:11,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-25 05:19:11,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:11,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:11,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:11,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:11,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:11,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:12,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:19:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:12,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:12,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:12,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:12,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:12,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:19:12,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:12,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:12,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:12,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:19:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:12,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:12,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:12,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:12,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:12,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:12,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:12,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:12,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:12,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:12,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:19:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:12,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:12,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:12,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:12,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:12,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:19:12,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:12,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:12,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:12,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:12,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:12,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:12,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:19:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:12,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:12,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:12,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:12,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:12,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:12,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:12,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:12,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:12,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:12,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:12,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:12,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 05:19:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:12,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:12,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:12,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:12,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:12,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:12,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:12,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:12,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:12,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:12,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:12,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:12,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 05:19:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:12,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:12,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:12,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:12,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:12,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:12,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:12,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:12,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:12,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:12,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:12,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:12,110 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 05:19:12,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1191054344] [2020-09-25 05:19:12,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:19:12,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:19:12,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094927219] [2020-09-25 05:19:12,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:19:12,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:19:12,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:19:12,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:19:12,153 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 3 states. [2020-09-25 05:19:13,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:19:13,628 INFO L93 Difference]: Finished difference Result 474 states and 559 transitions. [2020-09-25 05:19:13,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:19:13,632 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 05:19:13,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:19:13,662 INFO L225 Difference]: With dead ends: 474 [2020-09-25 05:19:13,662 INFO L226 Difference]: Without dead ends: 295 [2020-09-25 05:19:13,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:19:13,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-25 05:19:13,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 253. [2020-09-25 05:19:13,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 05:19:13,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 272 transitions. [2020-09-25 05:19:13,779 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 272 transitions. Word has length 142 [2020-09-25 05:19:13,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:19:13,780 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 272 transitions. [2020-09-25 05:19:13,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:19:13,780 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 272 transitions. [2020-09-25 05:19:13,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 05:19:13,785 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:19:13,785 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 05:19:13,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:19:13,786 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:19:13,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:19:13,786 INFO L82 PathProgramCache]: Analyzing trace with hash -2010231336, now seen corresponding path program 1 times [2020-09-25 05:19:13,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:19:13,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844643863] [2020-09-25 05:19:13,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:19:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:13,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:13,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:15,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:15,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:16,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:18,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:18,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 05:19:18,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:19:18,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 05:19:18,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:18,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:18,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:18,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 05:19:18,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:19:18,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:19,249 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:19:19,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:19:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:19,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:19,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:19,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:19:19,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:19,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 05:19:19,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:19,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:19,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:19,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:19,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:19,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:19,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:19:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:19,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:19,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:19,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:19,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:19,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:19,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:19,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:19,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:19,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:19,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:19,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:19,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:19:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:19,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:19,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:19,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:19,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:19,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:19,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:19,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:19,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:19,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:19,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:19,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:19,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:19:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:19,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:19,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:19,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:19,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:19,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:19:19,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:19,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:19,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:19,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:19,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:19,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:19,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:19:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:19,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:19,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:19,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:19,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:19,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:19,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:19,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:19,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:19,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:19,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:19,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:19,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 05:19:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:19,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:19,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:19,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:19,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:19,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:19,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:19,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:19,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:19,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:19,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:19,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:19,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:19:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:19,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:19,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:19,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:19,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:19,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:19,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:19,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:19,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:19,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:19,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:19,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:19,465 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 05:19:19,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844643863] [2020-09-25 05:19:19,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:19:19,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:19:19,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428631748] [2020-09-25 05:19:19,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:19:19,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:19:19,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:19:19,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:19:19,479 INFO L87 Difference]: Start difference. First operand 253 states and 272 transitions. Second operand 4 states. [2020-09-25 05:19:20,233 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:19:21,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:19:21,161 INFO L93 Difference]: Finished difference Result 387 states and 430 transitions. [2020-09-25 05:19:21,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:19:21,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 05:19:21,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:19:21,168 INFO L225 Difference]: With dead ends: 387 [2020-09-25 05:19:21,168 INFO L226 Difference]: Without dead ends: 278 [2020-09-25 05:19:21,174 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 05:19:21,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-09-25 05:19:21,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 243. [2020-09-25 05:19:21,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-25 05:19:21,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 259 transitions. [2020-09-25 05:19:21,256 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 259 transitions. Word has length 143 [2020-09-25 05:19:21,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:19:21,259 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 259 transitions. [2020-09-25 05:19:21,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:19:21,260 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 259 transitions. [2020-09-25 05:19:21,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 05:19:21,271 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:19:21,272 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 05:19:21,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:19:21,272 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:19:21,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:19:21,273 INFO L82 PathProgramCache]: Analyzing trace with hash 734706202, now seen corresponding path program 1 times [2020-09-25 05:19:21,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:19:21,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067929642] [2020-09-25 05:19:21,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:19:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:21,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:21,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:22,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:24,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:26,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:26,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 05:19:26,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:19:26,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 05:19:26,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:26,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:26,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:26,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 05:19:26,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:19:26,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:26,689 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:19:26,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:19:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:26,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:26,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:26,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:19:26,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:26,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 05:19:26,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:26,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:26,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:26,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:26,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:26,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:26,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:19:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:26,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:26,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:26,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:26,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:26,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:19:26,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:26,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:26,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:26,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:26,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:26,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:26,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:19:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:26,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:26,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:26,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:26,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:26,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:26,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:26,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:26,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:26,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:26,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:26,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:26,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:19:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:26,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:26,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:26,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:26,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:26,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:19:26,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:26,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:26,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:26,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:19:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:26,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:26,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:26,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:26,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:26,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:26,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:26,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:26,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:26,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:26,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:26,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:26,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 05:19:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:26,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:26,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:26,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:19:26,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:26,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:26,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:26,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:26,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:26,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:26,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:19:26,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:26,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 05:19:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:26,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:26,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:26,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:26,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:26,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:19:26,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:26,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:26,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:26,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:26,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:26,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:26,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 05:19:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:26,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:26,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:26,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:26,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:26,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:26,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:26,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:26,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:26,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:26,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:26,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:26,943 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 05:19:26,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067929642] [2020-09-25 05:19:26,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:19:26,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:19:26,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105123221] [2020-09-25 05:19:26,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:19:26,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:19:26,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:19:26,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:19:26,948 INFO L87 Difference]: Start difference. First operand 243 states and 259 transitions. Second operand 5 states. [2020-09-25 05:19:27,476 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:19:28,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:19:28,360 INFO L93 Difference]: Finished difference Result 433 states and 492 transitions. [2020-09-25 05:19:28,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:19:28,362 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 05:19:28,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:19:28,365 INFO L225 Difference]: With dead ends: 433 [2020-09-25 05:19:28,365 INFO L226 Difference]: Without dead ends: 300 [2020-09-25 05:19:28,367 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 05:19:28,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-09-25 05:19:28,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 243. [2020-09-25 05:19:28,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-25 05:19:28,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 258 transitions. [2020-09-25 05:19:28,429 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 258 transitions. Word has length 156 [2020-09-25 05:19:28,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:19:28,431 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 258 transitions. [2020-09-25 05:19:28,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:19:28,431 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 258 transitions. [2020-09-25 05:19:28,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-09-25 05:19:28,433 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:19:28,434 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] [2020-09-25 05:19:28,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:19:28,434 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:19:28,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:19:28,435 INFO L82 PathProgramCache]: Analyzing trace with hash 819157147, now seen corresponding path program 1 times [2020-09-25 05:19:28,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:19:28,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362009087] [2020-09-25 05:19:28,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:19:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:28,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:28,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:29,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:30,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:32,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:33,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:33,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 05:19:33,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:19:33,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 05:19:33,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:33,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:33,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:19:33,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 05:19:33,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:19:33,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:33,851 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:19:33,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:19:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:33,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:33,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:33,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:19:33,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:33,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 05:19:33,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:33,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:33,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:33,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:34,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:34,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 68 [2020-09-25 05:19:34,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:19:34,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:34,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:34,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:34,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:34,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:34,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:34,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:34,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:34,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:34,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:34,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:34,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:34,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:19:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:34,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:34,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:34,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:34,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:34,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:34,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:34,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:34,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:34,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:34,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:34,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 05:19:34,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:19:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:34,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:34,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:34,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:34,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:34,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 05:19:34,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:34,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:34,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:34,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:34,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:34,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:34,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:19:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:34,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:34,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:34,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:34,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:34,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:34,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:34,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:34,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:34,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:34,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:34,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:34,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 05:19:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:34,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:34,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:34,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:19:34,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:34,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:34,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:34,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:34,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:34,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:34,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:19:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:34,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:34,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:34,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:19:34,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:34,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:19:34,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:34,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:34,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:19:34,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:19:34,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:19:34,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:34,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:19:34,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:34,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:34,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:34,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:34,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:34,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:34,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:34,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:34,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:19:34,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:34,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 05:19:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:34,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:34,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:34,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:34,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:34,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:34,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:34,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:34,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:34,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:34,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:34,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:34,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 05:19:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:34,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:34,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:34,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:34,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:34,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:34,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:34,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:34,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:34,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:34,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:34,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:34,281 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 05:19:34,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362009087] [2020-09-25 05:19:34,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:19:34,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:19:34,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361093912] [2020-09-25 05:19:34,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:19:34,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:19:34,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:19:34,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:19:34,284 INFO L87 Difference]: Start difference. First operand 243 states and 258 transitions. Second operand 7 states. [2020-09-25 05:19:34,976 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:19:36,744 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:19:37,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:19:37,494 INFO L93 Difference]: Finished difference Result 604 states and 709 transitions. [2020-09-25 05:19:37,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 05:19:37,495 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 164 [2020-09-25 05:19:37,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:19:37,501 INFO L225 Difference]: With dead ends: 604 [2020-09-25 05:19:37,501 INFO L226 Difference]: Without dead ends: 471 [2020-09-25 05:19:37,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-25 05:19:37,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-09-25 05:19:37,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 344. [2020-09-25 05:19:37,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-09-25 05:19:37,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 369 transitions. [2020-09-25 05:19:37,554 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 369 transitions. Word has length 164 [2020-09-25 05:19:37,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:19:37,555 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 369 transitions. [2020-09-25 05:19:37,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:19:37,555 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 369 transitions. [2020-09-25 05:19:37,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-25 05:19:37,558 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:19:37,558 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] [2020-09-25 05:19:37,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:19:37,559 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:19:37,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:19:37,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1786267109, now seen corresponding path program 1 times [2020-09-25 05:19:37,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:19:37,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923020422] [2020-09-25 05:19:37,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:19:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:37,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:38,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:38,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:42,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:42,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-09-25 05:19:42,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:19:42,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 05:19:42,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:42,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:42,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:19:42,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 05:19:42,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 05:19:42,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:19:43,019 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:19:43,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:19:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:19:43,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:43,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 05:19:43,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:43,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:43,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:43,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:43,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:19:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:43,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:43,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:19:43,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:43,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:43,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:43,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:43,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:19:43,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:43,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:43,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:19:43,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:43,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:43,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:43,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:43,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:19:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:43,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:43,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:19:43,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:43,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:43,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:43,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:43,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:19:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:43,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:43,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:19:43,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:43,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:43,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:43,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:19:43,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 05:19:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:19:43,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:43,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:43,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:43,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:43,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:43,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:19:43,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:19:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:19:43,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:19:43,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 05:19:43,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:43,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:43,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:19:43,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:43,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:19:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:19:43,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:43,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 05:19:43,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:43,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:43,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 05:19:43,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:43,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:19:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:19:43,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:43,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:19:43,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:43,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:43,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:43,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:43,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:19:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:43,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:43,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:43,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:43,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:43,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:19:43,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:43,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 05:19:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:43,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:43,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:19:43,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:43,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:43,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:19:43,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:43,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-25 05:19:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:43,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:43,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:43,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:19:43,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:19:43,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:43,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:19:43,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:43,525 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 05:19:43,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923020422] [2020-09-25 05:19:43,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:19:43,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:19:43,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053168319] [2020-09-25 05:19:43,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:19:43,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:19:43,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:19:43,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:19:43,531 INFO L87 Difference]: Start difference. First operand 344 states and 369 transitions. Second operand 10 states. [2020-09-25 05:19:44,180 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:19:45,719 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:19:46,111 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:19:46,465 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:19:46,828 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 05:19:47,143 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 05:19:47,593 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:19:47,911 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:19:48,279 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:19:49,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:19:49,168 INFO L93 Difference]: Finished difference Result 474 states and 553 transitions. [2020-09-25 05:19:49,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 05:19:49,169 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 188 [2020-09-25 05:19:49,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:19:49,175 INFO L225 Difference]: With dead ends: 474 [2020-09-25 05:19:49,175 INFO L226 Difference]: Without dead ends: 471 [2020-09-25 05:19:49,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 05:19:49,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-09-25 05:19:49,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 344. [2020-09-25 05:19:49,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-09-25 05:19:49,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 368 transitions. [2020-09-25 05:19:49,222 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 368 transitions. Word has length 188 [2020-09-25 05:19:49,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:19:49,223 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 368 transitions. [2020-09-25 05:19:49,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:19:49,223 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 368 transitions. [2020-09-25 05:19:49,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-25 05:19:49,226 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:19:49,226 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:19:49,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:19:49,227 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:19:49,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:19:49,227 INFO L82 PathProgramCache]: Analyzing trace with hash 342460363, now seen corresponding path program 1 times [2020-09-25 05:19:49,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:19:49,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [358660337] [2020-09-25 05:19:49,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:19:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:49,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:49,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking...