/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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:30:51,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:30:51,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:30:51,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:30:51,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:30:51,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:30:51,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:30:51,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:30:51,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:30:51,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:30:51,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:30:51,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:30:51,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:30:51,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:30:51,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:30:51,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:30:51,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:30:51,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:30:51,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:30:51,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:30:51,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:30:51,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:30:51,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:30:51,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:30:51,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:30:51,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:30:51,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:30:51,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:30:51,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:30:51,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:30:51,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:30:51,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:30:51,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:30:51,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:30:51,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:30:51,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:30:51,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:30:51,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:30:51,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:30:51,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:30:51,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:30:51,393 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 [2020-09-24 23:30:51,452 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:30:51,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:30:51,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:30:51,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:30:51,455 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:30:51,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:30:51,460 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:30:51,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:30:51,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:30:51,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:30:51,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:30:51,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:30:51,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:30:51,462 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:30:51,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:30:51,462 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:30:51,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:30:51,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:30:51,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:30:51,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:30:51,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:30:51,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:30:51,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:30:51,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:30:51,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:30:51,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:30:51,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:30:51,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:30:51,467 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:30:51,467 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:30:51,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:30:51,969 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:30:51,974 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:30:51,975 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:30:51,976 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:30:51,977 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-09-24 23:30:52,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83ff3c95e/700a9b1bb88e4b71a0599acb3a5bb62b/FLAG664d96fec [2020-09-24 23:30:52,739 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:30:52,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-09-24 23:30:52,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83ff3c95e/700a9b1bb88e4b71a0599acb3a5bb62b/FLAG664d96fec [2020-09-24 23:30:53,000 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/83ff3c95e/700a9b1bb88e4b71a0599acb3a5bb62b [2020-09-24 23:30:53,013 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:30:53,020 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:30:53,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:30:53,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:30:53,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:30:53,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:30:53" (1/1) ... [2020-09-24 23:30:53,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@592ec0fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53, skipping insertion in model container [2020-09-24 23:30:53,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:30:53" (1/1) ... [2020-09-24 23:30:53,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:30:53,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:30:53,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:30:53,587 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:30:53,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:30:53,768 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:30:53,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53 WrapperNode [2020-09-24 23:30:53,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:30:53,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:30:53,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:30:53,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:30:53,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53" (1/1) ... [2020-09-24 23:30:53,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53" (1/1) ... [2020-09-24 23:30:53,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53" (1/1) ... [2020-09-24 23:30:53,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53" (1/1) ... [2020-09-24 23:30:53,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53" (1/1) ... [2020-09-24 23:30:53,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53" (1/1) ... [2020-09-24 23:30:53,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53" (1/1) ... [2020-09-24 23:30:53,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:30:53,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:30:53,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:30:53,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:30:53,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53" (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 [2020-09-24 23:30:53,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:30:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:30:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:30:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:30:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:30:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:30:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:30:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:30:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:30:53,983 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:30:53,983 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:30:53,983 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:30:53,983 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:30:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 23:30:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:30:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:30:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:30:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:30:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:30:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:30:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:30:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 23:30:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:30:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 23:30:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:30:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:30:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:30:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:30:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 23:30:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:30:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:30:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:30:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:30:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:30:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:30:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:30:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:30:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:30:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:30:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:30:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:30:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:30:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 23:30:53,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:30:53,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:30:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:30:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:30:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:30:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:30:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:30:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:30:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:30:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:30:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:30:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:30:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:30:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:30:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:30:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:30:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:30:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:30:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:30:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:30:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:30:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:30:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 23:30:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:30:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:30:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:30:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:30:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:30:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:30:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:30:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:30:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 23:30:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:30:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:30:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:30:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:30:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 23:30:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:30:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:30:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:30:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:30:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 23:30:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 23:30:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:30:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:30:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:30:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:30:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:30:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:30:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:30:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:30:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:30:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:30:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:30:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:30:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:30:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:30:55,347 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:30:55,347 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:30:55,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:30:55 BoogieIcfgContainer [2020-09-24 23:30:55,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:30:55,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:30:55,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:30:55,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:30:55,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:30:53" (1/3) ... [2020-09-24 23:30:55,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295d2408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:30:55, skipping insertion in model container [2020-09-24 23:30:55,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:53" (2/3) ... [2020-09-24 23:30:55,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295d2408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:30:55, skipping insertion in model container [2020-09-24 23:30:55,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:30:55" (3/3) ... [2020-09-24 23:30:55,365 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2020-09-24 23:30:55,378 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:30:55,390 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:30:55,413 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:30:55,449 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:30:55,449 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:30:55,450 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:30:55,450 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:30:55,450 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:30:55,450 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:30:55,450 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:30:55,450 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:30:55,483 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states. [2020-09-24 23:30:55,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 23:30:55,503 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:30:55,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:30:55,506 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:30:55,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:30:55,515 INFO L82 PathProgramCache]: Analyzing trace with hash 826882234, now seen corresponding path program 1 times [2020-09-24 23:30:55,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:30:55,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1737799882] [2020-09-24 23:30:55,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:30:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:56,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:56,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:57,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:58,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:00,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:00,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:00,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 23:31:00,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:31:00,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-09-24 23:31:00,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:00,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:31:00,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:31:00,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-24 23:31:00,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:31:01,475 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:31:01,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:31:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:01,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:01,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:01,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:31:01,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:01,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-24 23:31:01,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:01,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:01,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:01,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:31:01,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:01,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:31:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:01,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:01,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:01,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:01,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:01,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:01,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:01,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:01,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:01,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:01,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:01,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:31:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:01,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:01,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:01,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:01,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:01,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:01,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:01,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:01,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:01,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:01,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:01,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:31:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:01,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:01,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:01,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:01,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:01,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:31:01,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:01,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:01,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:01,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:01,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:01,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:31:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:01,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:01,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:01,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:01,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:01,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 23:31:01,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:01,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:01,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:01,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:01,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:01,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:31:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:01,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:01,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:01,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:01,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:01,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:31:01,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:01,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:01,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:01,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:01,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:01,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:31:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:01,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:02,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:02,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:02,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:02,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:31:02,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:02,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:02,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:02,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:02,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:02,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:31:02,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1737799882] [2020-09-24 23:31:02,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:31:02,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:31:02,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627962120] [2020-09-24 23:31:02,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:31:02,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:31:02,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:31:02,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:31:02,107 INFO L87 Difference]: Start difference. First operand 342 states. Second operand 8 states. [2020-09-24 23:31:02,742 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:31:04,030 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:04,365 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:31:04,747 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:05,093 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:31:05,414 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:06,263 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:31:06,553 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:06,915 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:31:08,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:31:08,410 INFO L93 Difference]: Finished difference Result 677 states and 847 transitions. [2020-09-24 23:31:08,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 23:31:08,413 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 23:31:08,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:31:08,434 INFO L225 Difference]: With dead ends: 677 [2020-09-24 23:31:08,434 INFO L226 Difference]: Without dead ends: 446 [2020-09-24 23:31:08,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 23:31:08,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-09-24 23:31:08,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 401. [2020-09-24 23:31:08,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-09-24 23:31:08,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 462 transitions. [2020-09-24 23:31:08,604 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 462 transitions. Word has length 142 [2020-09-24 23:31:08,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:31:08,605 INFO L479 AbstractCegarLoop]: Abstraction has 401 states and 462 transitions. [2020-09-24 23:31:08,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:31:08,605 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 462 transitions. [2020-09-24 23:31:08,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 23:31:08,610 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:31:08,611 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] [2020-09-24 23:31:08,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:31:08,611 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:31:08,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:31:08,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1255055236, now seen corresponding path program 1 times [2020-09-24 23:31:08,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:31:08,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2076086737] [2020-09-24 23:31:08,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:31:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:08,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:09,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:13,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:13,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 23:31:13,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:31:13,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-24 23:31:13,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:13,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:31:13,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 23:31:13,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-24 23:31:13,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:14,056 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:31:14,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:31:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:31:14,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-24 23:31:14,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:14,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:31:14,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:14,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:31:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:14,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:14,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:14,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:14,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:14,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:31:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:14,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:14,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:14,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:14,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:31:14,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:31:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:14,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:31:14,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:14,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:14,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:14,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:31:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:14,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:14,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:14,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:14,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:14,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 23:31:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:31:14,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:14,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:14,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:31:14,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:14,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 23:31:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 23:31:14,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:31:14,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-24 23:31:14,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:14,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 23:31:14,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:14,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:31:14,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:31:14,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 23:31:14,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:14,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:14,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:14,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:31:14,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:31:14,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 23:31:14,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:14,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:14,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:14,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:31:14,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:31:14,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 23:31:14,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:14,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:14,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:14,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:31:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:31:14,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:14,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:14,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:14,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:14,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:31:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:31:14,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:14,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:14,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:14,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:14,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 23:31:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:14,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:31:14,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:14,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:14,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:14,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:14,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 23:31:14,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:14,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:14,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:14,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:14,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:14,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:14,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:14,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:14,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:14,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:14,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:15,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:31:15,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2076086737] [2020-09-24 23:31:15,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:31:15,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:31:15,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274543943] [2020-09-24 23:31:15,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:31:15,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:31:15,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:31:15,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:31:15,099 INFO L87 Difference]: Start difference. First operand 401 states and 462 transitions. Second operand 10 states. [2020-09-24 23:31:15,648 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:31:16,477 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:16,834 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:31:17,230 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:17,616 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:31:17,944 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:18,596 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:31:18,912 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:19,358 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:31:22,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:31:22,657 INFO L93 Difference]: Finished difference Result 1250 states and 1660 transitions. [2020-09-24 23:31:22,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 23:31:22,658 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2020-09-24 23:31:22,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:31:22,668 INFO L225 Difference]: With dead ends: 1250 [2020-09-24 23:31:22,669 INFO L226 Difference]: Without dead ends: 910 [2020-09-24 23:31:22,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 23:31:22,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2020-09-24 23:31:22,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 651. [2020-09-24 23:31:22,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2020-09-24 23:31:22,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 757 transitions. [2020-09-24 23:31:22,787 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 757 transitions. Word has length 199 [2020-09-24 23:31:22,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:31:22,789 INFO L479 AbstractCegarLoop]: Abstraction has 651 states and 757 transitions. [2020-09-24 23:31:22,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:31:22,789 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 757 transitions. [2020-09-24 23:31:22,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 23:31:22,793 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:31:22,793 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] [2020-09-24 23:31:22,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:31:22,794 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:31:22,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:31:22,794 INFO L82 PathProgramCache]: Analyzing trace with hash 515628642, now seen corresponding path program 1 times [2020-09-24 23:31:22,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:31:22,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782871644] [2020-09-24 23:31:22,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:31:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:22,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:23,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:23,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-24 23:31:23,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:23,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 750 [2020-09-24 23:31:23,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:23,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:23,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-24 23:31:23,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:31:23,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:23,886 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:31:23,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:31:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:23,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:31:24,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 23:31:24,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:24,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:24,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:24,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:24,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:31:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:24,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:24,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:24,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:24,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:24,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:24,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:31:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:24,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:31:24,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:24,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:24,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:24,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:24,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:31:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:24,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:24,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:24,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:24,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:24,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:24,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:31:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:24,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:31:24,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:24,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:24,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:24,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:24,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:31:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:31:24,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:24,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:24,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:24,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:24,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:24,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:31:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:31:24,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:24,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:24,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:24,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:24,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:24,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 23:31:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 23:31:24,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 23:31:24,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 23:31:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:31:24,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:24,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:31:24,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 23:31:24,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:24,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 23:31:24,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:31:24,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:24,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:31:24,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 23:31:24,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:24,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 23:31:24,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:31:24,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:24,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:31:24,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 23:31:24,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:24,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:31:24,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:31:24,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:24,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:31:24,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:31:24,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:31:24,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:31:24,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:24,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:24,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:31:24,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:31:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:31:24,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:31:24,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:24,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:31:24,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:24,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:24,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 23:31:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:24,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:24,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:24,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:24,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:24,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:24,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 23:31:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:24,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:24,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:24,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:24,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:24,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:24,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:31:24,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [782871644] [2020-09-24 23:31:24,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:31:24,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:31:24,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149663697] [2020-09-24 23:31:24,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:31:24,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:31:24,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:31:24,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:31:24,674 INFO L87 Difference]: Start difference. First operand 651 states and 757 transitions. Second operand 10 states. [2020-09-24 23:31:26,325 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:31:26,678 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:31:27,009 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:27,398 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:31:27,692 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:29,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:31:29,777 INFO L93 Difference]: Finished difference Result 1605 states and 2130 transitions. [2020-09-24 23:31:29,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:31:29,778 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 204 [2020-09-24 23:31:29,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:31:29,787 INFO L225 Difference]: With dead ends: 1605 [2020-09-24 23:31:29,788 INFO L226 Difference]: Without dead ends: 1064 [2020-09-24 23:31:29,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:31:29,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2020-09-24 23:31:29,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 663. [2020-09-24 23:31:29,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 663 states. [2020-09-24 23:31:29,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 769 transitions. [2020-09-24 23:31:29,898 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 769 transitions. Word has length 204 [2020-09-24 23:31:29,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:31:29,899 INFO L479 AbstractCegarLoop]: Abstraction has 663 states and 769 transitions. [2020-09-24 23:31:29,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:31:29,899 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 769 transitions. [2020-09-24 23:31:29,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 23:31:29,903 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:31:29,903 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] [2020-09-24 23:31:29,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:31:29,903 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:31:29,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:31:29,904 INFO L82 PathProgramCache]: Analyzing trace with hash 101997250, now seen corresponding path program 1 times [2020-09-24 23:31:29,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:31:29,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1232051116] [2020-09-24 23:31:29,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:31:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:30,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:30,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:30,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-24 23:31:30,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:30,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 893 [2020-09-24 23:31:30,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:30,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:31:30,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 195 [2020-09-24 23:31:30,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:31:30,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:31,169 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:31:31,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:31:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:31,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:31,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:31,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:31:31,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:31,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-24 23:31:31,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:31,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:31,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:31,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:31,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:31,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:31:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:31,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:31,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:31,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:31,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:31,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:31,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:31,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:31,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:31,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:31,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:31,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:31:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:31,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:31,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:31,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:31,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:31,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:31,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:31,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:31,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:31,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:31,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:31,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:31:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:31,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:31,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:31,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:31,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:31,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:31,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:31,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:31,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:31,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:31,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:31,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:31:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:31,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:31,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:31,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:31,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:31,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:31,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:31,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:31,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:31,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:31,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:31,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:31:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:31,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:31,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:31,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:31:31,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:31,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:31:31,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:31,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:31,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:31,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:31,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:31,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:31:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:31,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:31,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:31,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:31:31,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:31,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:31,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:31,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:31,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:31,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:31,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:31,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 23:31:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:31,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:31,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:31,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 23:31:31,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:31,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 23:31:31,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:31,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:31:31,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 23:31:31,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:31:31,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:31,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:31,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:31,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:31,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:31:31,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:31,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 23:31:31,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:31,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:31:31,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 23:31:31,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:31:31,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:31,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:31,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:31,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:31,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:31:31,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:31,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 23:31:31,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:31,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:31:31,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 23:31:31,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:31:31,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:31,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:31,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:31,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:31,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:31:31,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:31,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 23:31:31,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:31,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:31,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:31,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 23:31:31,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:31,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:31:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:31,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:31,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:31,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:31:31,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:31,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:31,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:31,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:31,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:31,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:31,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:31,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:31:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:31,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:31,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:31,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:31:31,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:31,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:31,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:31,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:31,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:31:31,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:31,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:31,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 23:31:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:31,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:31,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:31,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:31,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:31,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:31,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:31,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:31,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:31,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:31,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:31,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 23:31:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:31,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:31,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:31,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:31,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:31,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:31,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:31,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:31,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:31,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:31,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:31,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:31:31,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1232051116] [2020-09-24 23:31:31,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:31:31,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 23:31:31,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785564920] [2020-09-24 23:31:31,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 23:31:31,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:31:31,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 23:31:31,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:31:31,978 INFO L87 Difference]: Start difference. First operand 663 states and 769 transitions. Second operand 11 states. [2020-09-24 23:31:33,897 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:34,216 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:31:34,487 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:31:34,826 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:35,150 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:31:35,489 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:31:37,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:31:37,420 INFO L93 Difference]: Finished difference Result 1625 states and 2097 transitions. [2020-09-24 23:31:37,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 23:31:37,422 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 204 [2020-09-24 23:31:37,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:31:37,429 INFO L225 Difference]: With dead ends: 1625 [2020-09-24 23:31:37,430 INFO L226 Difference]: Without dead ends: 1072 [2020-09-24 23:31:37,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:31:37,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-09-24 23:31:37,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 679. [2020-09-24 23:31:37,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2020-09-24 23:31:37,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 785 transitions. [2020-09-24 23:31:37,514 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 785 transitions. Word has length 204 [2020-09-24 23:31:37,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:31:37,515 INFO L479 AbstractCegarLoop]: Abstraction has 679 states and 785 transitions. [2020-09-24 23:31:37,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 23:31:37,515 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 785 transitions. [2020-09-24 23:31:37,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 23:31:37,518 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:31:37,519 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] [2020-09-24 23:31:37,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:31:37,519 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:31:37,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:31:37,520 INFO L82 PathProgramCache]: Analyzing trace with hash 446110533, now seen corresponding path program 1 times [2020-09-24 23:31:37,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:31:37,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154068428] [2020-09-24 23:31:37,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:31:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:37,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:38,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:38,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-24 23:31:38,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:38,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1411 [2020-09-24 23:31:38,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:38,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:31:38,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 23:31:38,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-24 23:31:38,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,313 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:31:39,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:31:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:31:39,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-09-24 23:31:39,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 23:31:39,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:31:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:39,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:39,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:39,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:31:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:39,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:39,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:39,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:31:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:39,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:31:39,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:39,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:31:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:39,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:39,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:39,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:31:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:31:39,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:31:39,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:31:39,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:39,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:31:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:31:39,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:31:39,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:31:39,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 23:31:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 23:31:39,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 23:31:39,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 23:31:39,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:31:39,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:31:39,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 23:31:39,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 23:31:39,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:31:39,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 23:31:39,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:31:39,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:31:39,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:31:39,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:31:39,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:31:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:31:39,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:39,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 23:31:39,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:31:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:31:39,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:31:39,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:31:39,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 23:31:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:39,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:39,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:39,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:39,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:39,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 23:31:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:39,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:39,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:39,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:39,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:39,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:39,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:31:39,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154068428] [2020-09-24 23:31:39,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:31:39,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:31:39,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637072051] [2020-09-24 23:31:39,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:31:39,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:31:39,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:31:39,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:31:39,987 INFO L87 Difference]: Start difference. First operand 679 states and 785 transitions. Second operand 8 states. [2020-09-24 23:31:40,576 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:31:42,030 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186