/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=0.2 --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_spec3_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:07:19,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:07:19,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:07:19,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:07:19,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:07:19,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:07:19,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:07:19,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:07:19,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:07:19,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:07:19,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:07:19,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:07:19,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:07:19,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:07:19,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:07:19,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:07:19,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:07:19,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:07:19,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:07:19,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:07:19,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:07:19,910 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:07:19,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:07:19,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:07:19,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:07:19,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:07:19,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:07:19,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:07:19,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:07:19,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:07:19,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:07:19,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:07:19,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:07:19,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:07:19,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:07:19,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:07:19,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:07:19,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:07:19,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:07:19,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:07:19,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:07:19,929 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 04:07:19,955 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:07:19,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:07:19,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:07:19,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:07:19,957 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:07:19,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:07:19,957 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:07:19,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:07:19,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:07:19,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:07:19,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:07:19,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:07:19,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:07:19,959 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:07:19,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:07:19,959 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:07:19,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:07:19,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:07:19,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:07:19,960 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:07:19,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:07:19,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:07:19,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:07:19,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:07:19,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:07:19,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:07:19,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:07:19,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:07:19,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:07:19,962 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 04:07:20,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:07:20,455 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:07:20,460 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:07:20,461 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:07:20,463 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:07:20,464 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product42.cil.c [2020-09-25 04:07:20,558 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef08796af/e8f72f60048e49849ff3bc42520a6062/FLAGd0b81983b [2020-09-25 04:07:21,141 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:07:21,142 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product42.cil.c [2020-09-25 04:07:21,154 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef08796af/e8f72f60048e49849ff3bc42520a6062/FLAGd0b81983b [2020-09-25 04:07:21,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef08796af/e8f72f60048e49849ff3bc42520a6062 [2020-09-25 04:07:21,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:07:21,438 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:07:21,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:07:21,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:07:21,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:07:21,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:07:21" (1/1) ... [2020-09-25 04:07:21,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:21, skipping insertion in model container [2020-09-25 04:07:21,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:07:21" (1/1) ... [2020-09-25 04:07:21,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:07:21,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:07:21,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:07:22,075 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:07:22,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:07:22,209 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:07:22,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:22 WrapperNode [2020-09-25 04:07:22,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:07:22,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:07:22,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:07:22,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:07:22,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:22" (1/1) ... [2020-09-25 04:07:22,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:22" (1/1) ... [2020-09-25 04:07:22,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:22" (1/1) ... [2020-09-25 04:07:22,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:22" (1/1) ... [2020-09-25 04:07:22,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:22" (1/1) ... [2020-09-25 04:07:22,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:22" (1/1) ... [2020-09-25 04:07:22,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:22" (1/1) ... [2020-09-25 04:07:22,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:07:22,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:07:22,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:07:22,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:07:22,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:22" (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 04:07:22,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:07:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:07:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:07:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:07:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:07:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:07:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:07:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:07:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:07:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:07:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:07:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:07:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 04:07:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:07:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:07:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:07:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:07:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:07:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:07:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 04:07:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:07:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:07:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:07:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:07:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:07:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:07:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:07:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:07:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:07:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:07:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:07:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:07:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:07:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:07:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:07:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:07:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:07:22,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:07:22,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 04:07:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:07:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:07:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:07:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:07:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:07:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:07:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:07:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:07:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:07:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:07:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:07:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:07:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:07:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:07:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:07:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:07:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 04:07:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:07:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:07:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:07:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:07:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:07:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:07:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:07:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 04:07:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:07:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:07:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:07:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 04:07:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:07:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:07:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:07:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:07:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:07:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:07:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:07:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:07:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:07:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:07:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:07:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:07:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:07:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:07:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:07:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:07:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:07:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:07:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:07:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:07:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:07:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:07:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:07:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:07:23,506 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:07:23,507 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:07:23,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:07:23 BoogieIcfgContainer [2020-09-25 04:07:23,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:07:23,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:07:23,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:07:23,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:07:23,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:07:21" (1/3) ... [2020-09-25 04:07:23,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286620b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:07:23, skipping insertion in model container [2020-09-25 04:07:23,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:22" (2/3) ... [2020-09-25 04:07:23,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286620b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:07:23, skipping insertion in model container [2020-09-25 04:07:23,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:07:23" (3/3) ... [2020-09-25 04:07:23,523 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product42.cil.c [2020-09-25 04:07:23,535 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:07:23,546 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:07:23,569 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:07:23,601 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:07:23,601 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:07:23,601 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:07:23,601 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:07:23,601 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:07:23,602 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:07:23,602 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:07:23,602 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:07:23,630 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-25 04:07:23,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 04:07:23,649 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:07:23,650 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] [2020-09-25 04:07:23,651 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:07:23,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:07:23,659 INFO L82 PathProgramCache]: Analyzing trace with hash 876604812, now seen corresponding path program 1 times [2020-09-25 04:07:23,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:07:23,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180365748] [2020-09-25 04:07:23,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:07:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:24,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:24,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:26,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:29,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:29,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 04:07:29,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:07:29,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 04:07:29,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:29,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:29,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:29,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 04:07:29,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:29,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 04:07:29,533 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:07:29,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:07:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:29,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:29,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:29,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:07:29,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:29,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 04:07:29,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:29,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:29,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:29,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:29,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:29,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:29,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:07:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:29,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:29,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:29,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:29,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:29,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:29,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:29,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:29,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:29,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:29,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:29,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:29,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:07:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:29,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:29,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:29,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:29,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:29,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:07:29,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:29,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:29,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:29,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:29,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:29,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:29,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:07:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:29,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:29,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:29,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:29,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:29,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:07:29,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:29,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:29,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:29,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:29,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:29,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:29,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:07:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:29,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:29,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:29,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:29,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:29,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:29,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:29,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:29,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:29,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:29,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:29,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:29,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:07:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:29,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:29,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:29,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:29,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:29,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:29,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:29,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:29,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:29,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:29,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:29,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:29,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:07:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:29,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:29,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:29,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:29,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:29,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:29,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:29,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:29,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:29,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 04:07:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:29,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:29,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:29,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:29,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:29,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:29,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:29,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:29,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:29,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:29,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:29,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:29,832 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 04:07:29,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180365748] [2020-09-25 04:07:29,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:07:29,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:07:29,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581434379] [2020-09-25 04:07:29,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:07:29,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:07:29,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:07:29,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:07:29,866 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 3 states. [2020-09-25 04:07:31,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:07:31,973 INFO L93 Difference]: Finished difference Result 486 states and 575 transitions. [2020-09-25 04:07:31,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:07:31,976 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 04:07:31,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:07:32,001 INFO L225 Difference]: With dead ends: 486 [2020-09-25 04:07:32,001 INFO L226 Difference]: Without dead ends: 301 [2020-09-25 04:07:32,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:07:32,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-25 04:07:32,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 259. [2020-09-25 04:07:32,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-25 04:07:32,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 280 transitions. [2020-09-25 04:07:32,135 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 280 transitions. Word has length 153 [2020-09-25 04:07:32,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:07:32,137 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 280 transitions. [2020-09-25 04:07:32,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:07:32,137 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 280 transitions. [2020-09-25 04:07:32,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 04:07:32,143 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:07:32,143 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] [2020-09-25 04:07:32,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:07:32,144 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:07:32,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:07:32,145 INFO L82 PathProgramCache]: Analyzing trace with hash -880334198, now seen corresponding path program 1 times [2020-09-25 04:07:32,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:07:32,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8570053] [2020-09-25 04:07:32,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:07:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:32,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:32,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:34,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:37,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:37,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 04:07:37,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:07:37,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 04:07:37,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:37,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:37,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:37,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 04:07:37,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:07:37,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:37,561 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:07:37,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:07:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:37,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:37,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:37,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:07:37,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:37,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 04:07:37,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:37,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:37,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:37,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:37,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:37,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:37,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:07:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:37,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:37,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:37,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:37,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:37,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:37,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:37,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:37,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:37,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:37,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:37,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:07:37,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:07:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:37,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:37,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:37,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:37,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:37,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:07:37,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:37,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:37,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:37,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:37,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:37,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:37,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:07:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:37,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:37,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:37,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:37,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:37,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:07:37,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:37,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:37,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:37,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:37,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:07:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:37,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:37,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:37,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:37,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:37,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:37,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:37,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:37,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:37,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:37,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:37,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:37,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 04:07:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:37,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:37,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:37,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:37,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:37,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:37,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:37,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:37,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:37,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:37,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:37,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:37,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 04:07:37,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:37,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:37,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:37,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:37,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:37,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:37,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:37,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:37,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:37,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:37,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:37,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:37,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 04:07:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:37,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:37,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:37,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:37,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:37,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:37,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:37,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:37,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:37,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 04:07:37,811 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 04:07:37,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8570053] [2020-09-25 04:07:37,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:07:37,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:07:37,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543497742] [2020-09-25 04:07:37,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:07:37,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:07:37,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:07:37,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:07:37,817 INFO L87 Difference]: Start difference. First operand 259 states and 280 transitions. Second operand 4 states. [2020-09-25 04:07:38,407 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:07:39,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:07:39,349 INFO L93 Difference]: Finished difference Result 399 states and 446 transitions. [2020-09-25 04:07:39,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:07:39,350 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 04:07:39,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:07:39,355 INFO L225 Difference]: With dead ends: 399 [2020-09-25 04:07:39,355 INFO L226 Difference]: Without dead ends: 284 [2020-09-25 04:07:39,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 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 04:07:39,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-25 04:07:39,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 249. [2020-09-25 04:07:39,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 04:07:39,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 267 transitions. [2020-09-25 04:07:39,417 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 267 transitions. Word has length 154 [2020-09-25 04:07:39,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:07:39,418 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 267 transitions. [2020-09-25 04:07:39,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:07:39,418 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 267 transitions. [2020-09-25 04:07:39,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 04:07:39,421 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:07:39,421 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] [2020-09-25 04:07:39,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:07:39,424 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:07:39,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:07:39,424 INFO L82 PathProgramCache]: Analyzing trace with hash -2069807768, now seen corresponding path program 1 times [2020-09-25 04:07:39,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:07:39,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571945324] [2020-09-25 04:07:39,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:07:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:39,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:39,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:42,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:42,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 04:07:42,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:07:42,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2688 [2020-09-25 04:07:42,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:42,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:42,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:42,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:07:42,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:07:42,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:42,470 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:07:42,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:07:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:42,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:42,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:42,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:07:42,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:42,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 04:07:42,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:42,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:42,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:42,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:42,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:42,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:42,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:07:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:42,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:42,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:42,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:42,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:42,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:07:42,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:42,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:42,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:42,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:42,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:42,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:07:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:42,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:42,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:42,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:42,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:42,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:07:42,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:42,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:42,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:42,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:42,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:42,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:42,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:07:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:42,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:42,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:42,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:42,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:42,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:42,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:42,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:42,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:42,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:42,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:07:42,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:07:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:42,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:42,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:42,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:42,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:42,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:07:42,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:42,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:42,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:42,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:42,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:42,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:42,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:07:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:42,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:42,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:42,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:07:42,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:42,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:42,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:42,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:42,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:42,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:42,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:07:42,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:07:42,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 04:07:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:42,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:42,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:42,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:42,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:42,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:42,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:42,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:42,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:42,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:42,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:42,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:42,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 04:07:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:42,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:42,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:42,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:42,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:42,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:42,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:42,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:42,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:42,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:42,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:42,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:42,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 04:07:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:42,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:42,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:42,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:42,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:42,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:42,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:42,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:42,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:42,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:42,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:42,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:42,731 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 04:07:42,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571945324] [2020-09-25 04:07:42,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:07:42,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:07:42,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978602235] [2020-09-25 04:07:42,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:07:42,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:07:42,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:07:42,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:07:42,736 INFO L87 Difference]: Start difference. First operand 249 states and 267 transitions. Second operand 5 states. [2020-09-25 04:07:43,249 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:07:44,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:07:44,180 INFO L93 Difference]: Finished difference Result 445 states and 508 transitions. [2020-09-25 04:07:44,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:07:44,181 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 04:07:44,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:07:44,184 INFO L225 Difference]: With dead ends: 445 [2020-09-25 04:07:44,185 INFO L226 Difference]: Without dead ends: 306 [2020-09-25 04:07:44,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 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 04:07:44,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-25 04:07:44,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 249. [2020-09-25 04:07:44,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 04:07:44,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 266 transitions. [2020-09-25 04:07:44,231 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 266 transitions. Word has length 167 [2020-09-25 04:07:44,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:07:44,231 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 266 transitions. [2020-09-25 04:07:44,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:07:44,232 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 266 transitions. [2020-09-25 04:07:44,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 04:07:44,234 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:07:44,235 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] [2020-09-25 04:07:44,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:07:44,235 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:07:44,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:07:44,236 INFO L82 PathProgramCache]: Analyzing trace with hash 398712319, now seen corresponding path program 1 times [2020-09-25 04:07:44,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:07:44,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2105038614] [2020-09-25 04:07:44,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:07:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:44,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:44,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:45,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:46,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 04:07:49,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:07:49,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 04:07:49,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:07:49,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 04:07:49,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:07:49,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,578 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:07:49,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:07:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:07:49,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 04:07:49,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:49,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:49,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:49,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:07:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:49,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:49,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:49,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:49,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:49,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:07:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:49,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:49,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:49,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:49,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:49,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:07:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:49,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:07:49,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:49,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:49,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:49,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:07:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:49,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:49,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:49,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:49,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:49,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:07:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:07:49,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:49,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:49,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:49,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:49,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:07:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:07:49,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 04:07:49,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:07:49,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:07:49,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:07:49,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:07:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:49,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:07:49,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:49,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:49,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:07:49,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 04:07:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:49,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:49,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:49,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:49,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:49,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 04:07:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:49,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:49,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:49,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:49,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:49,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 04:07:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:49,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:49,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:49,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:49,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:49,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,989 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 04:07:49,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2105038614] [2020-09-25 04:07:49,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:07:49,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:07:49,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898614439] [2020-09-25 04:07:49,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:07:49,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:07:49,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:07:49,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:07:49,993 INFO L87 Difference]: Start difference. First operand 249 states and 266 transitions. Second operand 8 states. [2020-09-25 04:07:50,572 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:07:52,072 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:07:53,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:07:53,089 INFO L93 Difference]: Finished difference Result 638 states and 749 transitions. [2020-09-25 04:07:53,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 04:07:53,090 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2020-09-25 04:07:53,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:07:53,094 INFO L225 Difference]: With dead ends: 638 [2020-09-25 04:07:53,095 INFO L226 Difference]: Without dead ends: 499 [2020-09-25 04:07:53,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-09-25 04:07:53,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-09-25 04:07:53,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 372. [2020-09-25 04:07:53,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-09-25 04:07:53,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 401 transitions. [2020-09-25 04:07:53,148 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 401 transitions. Word has length 175 [2020-09-25 04:07:53,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:07:53,148 INFO L479 AbstractCegarLoop]: Abstraction has 372 states and 401 transitions. [2020-09-25 04:07:53,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:07:53,149 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 401 transitions. [2020-09-25 04:07:53,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 04:07:53,151 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:07:53,151 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] [2020-09-25 04:07:53,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:07:53,152 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:07:53,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:07:53,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1043835343, now seen corresponding path program 1 times [2020-09-25 04:07:53,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:07:53,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1510070000] [2020-09-25 04:07:53,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:07:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:53,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:53,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:55,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:55,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-25 04:07:55,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:07:55,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2544 [2020-09-25 04:07:55,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:55,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:07:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 04:07:55,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 04:07:55,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:56,049 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:07:56,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:07:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:56,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:56,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:56,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:07:56,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:56,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 04:07:56,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:56,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:56,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:56,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:56,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:56,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:56,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:07:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:56,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:56,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:56,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:56,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:56,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:56,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:56,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:56,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:56,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:56,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:56,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:56,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:07:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:56,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:56,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:56,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:56,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:56,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:07:56,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:56,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:56,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:56,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:56,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:56,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:56,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:07:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:56,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:56,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:56,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:56,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:56,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:56,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:56,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:56,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:56,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:56,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:56,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:56,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:07:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:56,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:56,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:56,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:56,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:56,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:56,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:56,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:56,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:56,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:56,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:07:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:56,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:56,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:56,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:07:56,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:56,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:56,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:56,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:56,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:56,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:56,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:56,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:56,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:07:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:56,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:56,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:56,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 04:07:56,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:56,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 04:07:56,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:56,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:56,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:56,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:56,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:07:56,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:56,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:07:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:56,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:56,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:56,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:07:56,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:56,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:07:56,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:56,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:56,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:56,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:56,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:07:56,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:56,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:07:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:56,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:56,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:56,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:07:56,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:56,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:07:56,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:56,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:56,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:56,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:56,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:07:56,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:56,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:07:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:56,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:56,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:56,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:56,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:56,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:56,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:56,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:56,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:56,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:56,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:07:56,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:56,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 04:07:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:56,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:56,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:56,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:56,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:56,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:56,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:56,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:56,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:56,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:56,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:07:56,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:56,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 04:07:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:56,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:56,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:56,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:56,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:56,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:07:56,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:56,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:56,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:07:56,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:56,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:07:56,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:56,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 04:07:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:56,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:56,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:56,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:56,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:56,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:56,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:56,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:56,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:56,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:56,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:56,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:07:56,523 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 04:07:56,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1510070000] [2020-09-25 04:07:56,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:07:56,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 04:07:56,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015471500] [2020-09-25 04:07:56,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 04:07:56,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:07:56,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 04:07:56,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:07:56,527 INFO L87 Difference]: Start difference. First operand 372 states and 401 transitions. Second operand 11 states. [2020-09-25 04:07:57,124 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:07:59,471 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 04:08:00,043 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 04:08:00,367 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:08:00,691 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:08:00,999 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:08:01,324 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 04:08:01,608 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:08:01,984 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:08:03,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:08:03,394 INFO L93 Difference]: Finished difference Result 1074 states and 1316 transitions. [2020-09-25 04:08:03,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 04:08:03,395 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-09-25 04:08:03,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:08:03,403 INFO L225 Difference]: With dead ends: 1074 [2020-09-25 04:08:03,403 INFO L226 Difference]: Without dead ends: 812 [2020-09-25 04:08:03,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2020-09-25 04:08:03,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-09-25 04:08:03,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 602. [2020-09-25 04:08:03,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2020-09-25 04:08:03,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 666 transitions. [2020-09-25 04:08:03,503 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 666 transitions. Word has length 199 [2020-09-25 04:08:03,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:08:03,504 INFO L479 AbstractCegarLoop]: Abstraction has 602 states and 666 transitions. [2020-09-25 04:08:03,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 04:08:03,504 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 666 transitions. [2020-09-25 04:08:03,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-25 04:08:03,508 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:08:03,508 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] [2020-09-25 04:08:03,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:08:03,509 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:08:03,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:08:03,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1519010768, now seen corresponding path program 1 times [2020-09-25 04:08:03,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:08:03,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093518080] [2020-09-25 04:08:03,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:08:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:03,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:04,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:04,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-09-25 04:08:04,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:04,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 705 [2020-09-25 04:08:04,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:04,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:04,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:08:04,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-25 04:08:04,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:08:04,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:08:04,543 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:08:04,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:08:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:04,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:04,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:04,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:08:04,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:04,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 04:08:04,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:04,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:04,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:08:04,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:08:04,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:08:04,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:08:04,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:08:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:04,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:04,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:04,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:08:04,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:04,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:08:04,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:04,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:04,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:08:04,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:08:04,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:08:04,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:08:04,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:08:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:04,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:04,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:04,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:08:04,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:04,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:08:04,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:04,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:04,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:08:04,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:08:04,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:08:04,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:08:04,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:08:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:04,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:04,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:04,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:08:04,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:04,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:08:04,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:04,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:04,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:08:04,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:08:04,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:08:04,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:04,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:08:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:04,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:04,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:04,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:08:04,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:04,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:08:04,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:04,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:04,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:08:04,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:08:04,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:08:04,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:08:04,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 04:08:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:04,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:04,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:04,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:08:04,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:04,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:08:04,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:04,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:04,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:08:04,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:08:04,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:08:04,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:04,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 04:08:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:04,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:04,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:04,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:08:04,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:04,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:08:04,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:04,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:04,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:08:04,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:08:04,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:08:04,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:04,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 04:08:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:04,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:04,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:04,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 04:08:04,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:04,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 04:08:04,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:04,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:04,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:08:04,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 04:08:04,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:08:04,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:04,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:08:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:04,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:04,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:04,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:08:04,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:04,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 04:08:04,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:04,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:08:04,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:08:04,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:08:04,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:04,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:08:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:04,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:04,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:04,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:08:04,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:04,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 04:08:04,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:04,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:04,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:08:04,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:08:04,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:08:04,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:04,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:08:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:04,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:04,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:04,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:08:04,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:04,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:08:04,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:04,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:04,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:08:04,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 04:08:04,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:08:04,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:04,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 04:08:04,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:04,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:04,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:04,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:08:04,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:04,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:08:04,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:04,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:04,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:08:04,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:08:04,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:08:04,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:04,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 04:08:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:04,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:04,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:04,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:08:04,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:04,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:08:04,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:04,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:04,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:08:04,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:08:04,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:08:04,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:04,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-25 04:08:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:04,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:04,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:04,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:08:04,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:04,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:08:04,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:04,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:04,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:08:04,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:08:04,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:08:04,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:05,039 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 04:08:05,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093518080] [2020-09-25 04:08:05,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:08:05,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:08:05,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504421919] [2020-09-25 04:08:05,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:08:05,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:08:05,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:08:05,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:08:05,042 INFO L87 Difference]: Start difference. First operand 602 states and 666 transitions. Second operand 10 states. [2020-09-25 04:08:06,311 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:08:06,624 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:08:06,918 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:08:07,194 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:08:07,496 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189