/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=NARROWEST --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_spec5_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:56:00,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:56:00,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:56:00,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:56:00,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:56:00,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:56:00,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:56:00,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:56:00,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:56:00,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:56:00,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:56:00,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:56:00,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:56:00,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:56:00,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:56:00,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:56:00,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:56:00,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:56:00,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:56:00,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:56:00,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:56:00,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:56:00,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:56:00,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:56:00,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:56:00,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:56:00,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:56:00,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:56:00,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:56:00,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:56:00,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:56:00,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:56:00,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:56:00,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:56:00,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:56:00,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:56:00,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:56:00,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:56:00,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:56:00,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:56:00,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:56:00,476 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:56:00,522 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:56:00,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:56:00,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:56:00,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:56:00,525 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:56:00,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:56:00,526 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:56:00,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:56:00,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:56:00,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:56:00,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:56:00,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:56:00,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:56:00,528 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:56:00,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:56:00,529 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:56:00,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:56:00,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:56:00,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:56:00,529 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:56:00,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:56:00,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:56:00,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:56:00,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:56:00,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:56:00,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:56:00,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:56:00,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:56:00,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:56:00,531 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 01:56:00,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:56:01,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:56:01,014 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:56:01,016 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:56:01,016 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:56:01,017 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product20.cil.c [2020-09-25 01:56:01,114 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38de44d08/567cc8076ca44877975af4f190b48d37/FLAGa1ac3b248 [2020-09-25 01:56:01,732 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:56:01,733 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product20.cil.c [2020-09-25 01:56:01,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38de44d08/567cc8076ca44877975af4f190b48d37/FLAGa1ac3b248 [2020-09-25 01:56:02,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/38de44d08/567cc8076ca44877975af4f190b48d37 [2020-09-25 01:56:02,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:56:02,041 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:56:02,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:56:02,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:56:02,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:56:02,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:56:02" (1/1) ... [2020-09-25 01:56:02,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df4749d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:02, skipping insertion in model container [2020-09-25 01:56:02,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:56:02" (1/1) ... [2020-09-25 01:56:02,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:56:02,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:56:02,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:56:02,624 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:56:02,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:56:02,792 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:56:02,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:02 WrapperNode [2020-09-25 01:56:02,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:56:02,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:56:02,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:56:02,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:56:02,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:02" (1/1) ... [2020-09-25 01:56:02,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:02" (1/1) ... [2020-09-25 01:56:02,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:02" (1/1) ... [2020-09-25 01:56:02,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:02" (1/1) ... [2020-09-25 01:56:02,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:02" (1/1) ... [2020-09-25 01:56:02,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:02" (1/1) ... [2020-09-25 01:56:02,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:02" (1/1) ... [2020-09-25 01:56:02,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:56:02,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:56:02,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:56:02,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:56:02,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:56:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:56:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:56:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:56:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:56:02,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:56:02,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:56:02,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:56:02,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:56:02,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:56:02,990 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:56:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:56:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:56:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:56:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:56:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:56:02,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 01:56:02,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:56:02,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:56:02,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:56:02,993 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:56:02,993 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:56:02,993 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:56:02,993 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:56:02,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:56:02,993 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:56:02,994 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:56:02,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:56:02,994 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:56:02,994 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:56:02,994 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:56:02,994 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:56:02,995 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:56:02,995 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:56:02,995 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:56:02,995 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:56:02,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:56:02,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:56:02,996 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:56:02,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 01:56:02,996 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:56:02,996 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:56:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:56:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:56:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:56:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:56:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:56:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:56:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:56:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:56:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:56:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:56:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:56:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:56:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:56:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:56:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:56:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:56:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:56:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:56:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:56:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:56:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:56:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:56:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:56:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:56:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:56:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:56:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 01:56:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:56:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:56:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:56:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:56:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:56:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:56:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:56:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:56:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:56:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:56:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:56:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:56:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:56:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:56:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:56:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:56:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:56:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:56:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:56:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:56:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:56:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:56:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:56:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 01:56:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:56:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:56:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:56:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:56:04,134 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:56:04,134 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:56:04,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:56:04 BoogieIcfgContainer [2020-09-25 01:56:04,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:56:04,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:56:04,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:56:04,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:56:04,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:56:02" (1/3) ... [2020-09-25 01:56:04,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535a7f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:56:04, skipping insertion in model container [2020-09-25 01:56:04,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:56:02" (2/3) ... [2020-09-25 01:56:04,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535a7f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:56:04, skipping insertion in model container [2020-09-25 01:56:04,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:56:04" (3/3) ... [2020-09-25 01:56:04,151 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product20.cil.c [2020-09-25 01:56:04,163 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:56:04,175 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:56:04,198 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:56:04,232 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:56:04,232 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:56:04,232 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:56:04,232 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:56:04,232 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:56:04,233 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:56:04,233 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:56:04,233 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:56:04,264 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-25 01:56:04,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 01:56:04,284 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:56:04,286 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:56:04,287 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:56:04,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:56:04,295 INFO L82 PathProgramCache]: Analyzing trace with hash -502904586, now seen corresponding path program 1 times [2020-09-25 01:56:04,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:56:04,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [318664261] [2020-09-25 01:56:04,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:56:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:04,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:04,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:06,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:06,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:09,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:09,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:09,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 01:56:09,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:56:09,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 01:56:09,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:09,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:09,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 01:56:09,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:09,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 01:56:10,176 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:56:10,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:56:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:56:10,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 01:56:10,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:10,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:10,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:56:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:10,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:56:10,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:10,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:10,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:56:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:10,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:56:10,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:10,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 01:56:10,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:56:10,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:10,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 01:56:10,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:10,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:10,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:56:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:10,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:10,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:10,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:10,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:56:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:56:10,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:56:10,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:10,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:10,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:56:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:56:10,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:56:10,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:56:10,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:10,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:56:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:10,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:56:10,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:10,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:10,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 01:56:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:10,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:10,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:56:10,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:10,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:56:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:10,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:10,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:10,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:10,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:10,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:56:10,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:10,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:10,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:56:10,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:10,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:10,577 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:56:10,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [318664261] [2020-09-25 01:56:10,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:56:10,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:56:10,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750676673] [2020-09-25 01:56:10,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:56:10,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:56:10,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:56:10,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:56:10,616 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 4 states. [2020-09-25 01:56:11,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:56:11,895 INFO L93 Difference]: Finished difference Result 456 states and 539 transitions. [2020-09-25 01:56:11,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 01:56:11,898 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 01:56:11,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:56:11,927 INFO L225 Difference]: With dead ends: 456 [2020-09-25 01:56:11,928 INFO L226 Difference]: Without dead ends: 294 [2020-09-25 01:56:11,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:56:11,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-09-25 01:56:12,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 247. [2020-09-25 01:56:12,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-09-25 01:56:12,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 268 transitions. [2020-09-25 01:56:12,067 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 268 transitions. Word has length 160 [2020-09-25 01:56:12,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:56:12,068 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 268 transitions. [2020-09-25 01:56:12,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:56:12,068 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 268 transitions. [2020-09-25 01:56:12,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 01:56:12,073 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:56:12,073 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:56:12,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:56:12,074 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:56:12,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:56:12,074 INFO L82 PathProgramCache]: Analyzing trace with hash -445941209, now seen corresponding path program 1 times [2020-09-25 01:56:12,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:56:12,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647156955] [2020-09-25 01:56:12,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:56:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:12,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:12,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:13,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:14,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:15,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:17,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:17,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 01:56:17,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:56:17,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 01:56:17,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:17,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:56:17,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 01:56:17,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:56:17,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:17,464 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:56:17,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:56:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:17,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:17,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:17,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:56:17,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:17,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 01:56:17,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:17,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:17,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:56:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:17,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:17,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:17,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:17,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:17,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:17,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:17,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:17,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:17,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:17,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:17,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:56:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:17,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:17,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:17,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:17,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:17,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:56:17,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:17,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:17,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:17,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:17,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:17,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:56:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:17,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:17,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:17,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:17,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:17,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:56:17,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:17,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:17,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:17,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:17,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:17,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:56:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:17,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:17,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:17,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:17,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:17,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:56:17,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:17,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:17,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:17,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:17,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:17,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:56:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:17,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:17,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:17,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:56:17,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:17,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:17,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:17,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:17,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:17,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:17,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:17,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:56:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:17,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:17,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:17,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:56:17,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:17,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:56:17,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:17,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:17,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:56:17,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:17,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:17,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:56:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:17,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:17,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:17,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:17,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:17,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:17,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:17,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:17,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:17,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:17,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:17,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 01:56:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:17,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:17,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:17,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:17,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:17,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:17,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:17,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:17,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:56:17,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:17,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:17,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:56:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:17,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:17,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:17,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:17,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:17,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:17,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:17,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:17,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:56:17,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:17,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:17,706 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:56:17,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [647156955] [2020-09-25 01:56:17,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:56:17,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:56:17,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114978818] [2020-09-25 01:56:17,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:56:17,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:56:17,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:56:17,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:56:17,711 INFO L87 Difference]: Start difference. First operand 247 states and 268 transitions. Second operand 5 states. [2020-09-25 01:56:18,494 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:19,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:56:19,407 INFO L93 Difference]: Finished difference Result 375 states and 423 transitions. [2020-09-25 01:56:19,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:56:19,408 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 01:56:19,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:56:19,412 INFO L225 Difference]: With dead ends: 375 [2020-09-25 01:56:19,413 INFO L226 Difference]: Without dead ends: 283 [2020-09-25 01:56:19,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:56:19,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-09-25 01:56:19,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 237. [2020-09-25 01:56:19,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-09-25 01:56:19,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 255 transitions. [2020-09-25 01:56:19,456 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 255 transitions. Word has length 161 [2020-09-25 01:56:19,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:56:19,457 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 255 transitions. [2020-09-25 01:56:19,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:56:19,457 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 255 transitions. [2020-09-25 01:56:19,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 01:56:19,460 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:56:19,461 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:56:19,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:56:19,461 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:56:19,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:56:19,462 INFO L82 PathProgramCache]: Analyzing trace with hash -292418968, now seen corresponding path program 1 times [2020-09-25 01:56:19,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:56:19,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073490662] [2020-09-25 01:56:19,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:56:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:19,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:19,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:19,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:21,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:24,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:24,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 01:56:24,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:56:24,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 01:56:24,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:24,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:56:24,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 01:56:24,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 01:56:24,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:24,903 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:56:24,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:56:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:24,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:25,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:25,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:56:25,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:25,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 01:56:25,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:25,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:25,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:25,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:25,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:25,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:56:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:25,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:25,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:25,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:25,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:25,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:25,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:25,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:25,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:25,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:25,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:25,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:56:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:25,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:25,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:25,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:25,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:25,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:56:25,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:25,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:25,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:25,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:25,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:25,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:56:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:25,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:25,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:25,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:25,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:25,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:25,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:25,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:25,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:25,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:25,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:25,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:56:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:25,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:25,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:25,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:25,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:25,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:56:25,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:25,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:25,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:25,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:25,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:25,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:56:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:25,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:25,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:25,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:56:25,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:25,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:25,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:25,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:25,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:25,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:25,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:25,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 01:56:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:25,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:25,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:25,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:56:25,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:25,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:56:25,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:25,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:56:25,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:25,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:56:25,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:25,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:56:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:25,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:25,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:25,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:56:25,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:25,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:56:25,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:25,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:56:25,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:25,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 01:56:25,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:25,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:56:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:25,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:25,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:25,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:25,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:25,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 01:56:25,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:25,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:25,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:25,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:25,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:25,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 01:56:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:25,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:25,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:25,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:25,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:25,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 01:56:25,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:25,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:25,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:56:25,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:25,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:25,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 01:56:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:25,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:25,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:25,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:25,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:25,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:25,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:25,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:25,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:56:25,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:25,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:25,261 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:56:25,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1073490662] [2020-09-25 01:56:25,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:56:25,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 01:56:25,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481033740] [2020-09-25 01:56:25,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:56:25,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:56:25,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:56:25,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:56:25,267 INFO L87 Difference]: Start difference. First operand 237 states and 255 transitions. Second operand 6 states. [2020-09-25 01:56:25,808 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:56:27,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:56:27,546 INFO L93 Difference]: Finished difference Result 555 states and 645 transitions. [2020-09-25 01:56:27,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 01:56:27,547 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-25 01:56:27,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:56:27,552 INFO L225 Difference]: With dead ends: 555 [2020-09-25 01:56:27,552 INFO L226 Difference]: Without dead ends: 433 [2020-09-25 01:56:27,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:56:27,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-09-25 01:56:27,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 349. [2020-09-25 01:56:27,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-09-25 01:56:27,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 386 transitions. [2020-09-25 01:56:27,619 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 386 transitions. Word has length 174 [2020-09-25 01:56:27,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:56:27,620 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 386 transitions. [2020-09-25 01:56:27,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 01:56:27,621 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 386 transitions. [2020-09-25 01:56:27,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 01:56:27,624 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:56:27,624 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:56:27,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:56:27,625 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:56:27,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:56:27,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1020289759, now seen corresponding path program 1 times [2020-09-25 01:56:27,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:56:27,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [183153732] [2020-09-25 01:56:27,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:56:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:27,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:27,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:28,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:30,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:32,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:32,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 01:56:32,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:56:32,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 01:56:32,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:32,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:56:32,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-25 01:56:32,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:56:32,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:33,154 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:56:33,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:56:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:33,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:33,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:33,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:56:33,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:33,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 01:56:33,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:33,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:33,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:33,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:33,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:33,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:56:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:33,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:33,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:33,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:33,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:33,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:33,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:33,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:33,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:56:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:33,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:33,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:33,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:33,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:33,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:56:33,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:33,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:33,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:56:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:33,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:33,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:33,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:33,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:33,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:56:33,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:33,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:33,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:33,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:33,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:33,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:56:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:33,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:33,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:33,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:56:33,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:33,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:33,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:33,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:33,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:33,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:33,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:33,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:56:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:33,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:33,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:33,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:56:33,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:33,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:33,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:33,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:33,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:33,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:33,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:33,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 01:56:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:33,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:33,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:33,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:56:33,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:33,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:56:33,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:33,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:33,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:33,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:33,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:56:33,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 01:56:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:33,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:33,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:33,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:56:33,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:33,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:56:33,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:33,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:33,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:33,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:33,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:33,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:56:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:33,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:33,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:33,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:33,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:33,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:56:33,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:33,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:56:33,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:33,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:56:33,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:33,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 01:56:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:33,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:33,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:33,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:33,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:33,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:56:33,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:33,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:56:33,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:33,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:56:33,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:33,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-25 01:56:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:56:33,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:56:33,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:56:33,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:56:33,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:56:33,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:56:33,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:56:33,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:56:33,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:56:33,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:56:33,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:56:33,577 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 01:56:33,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [183153732] [2020-09-25 01:56:33,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:56:33,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:56:33,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792673641] [2020-09-25 01:56:33,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:56:33,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:56:33,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:56:33,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:56:33,583 INFO L87 Difference]: Start difference. First operand 349 states and 386 transitions. Second operand 10 states. [2020-09-25 01:56:34,330 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:35,339 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:56:35,717 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 01:56:36,657 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:56:37,018 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 01:56:37,319 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 01:56:37,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:56:37,394 INFO L93 Difference]: Finished difference Result 580 states and 688 transitions. [2020-09-25 01:56:37,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 01:56:37,394 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-09-25 01:56:37,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:56:37,396 INFO L225 Difference]: With dead ends: 580 [2020-09-25 01:56:37,396 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 01:56:37,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2020-09-25 01:56:37,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 01:56:37,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 01:56:37,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 01:56:37,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 01:56:37,401 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2020-09-25 01:56:37,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:56:37,402 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 01:56:37,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:56:37,402 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 01:56:37,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 01:56:37,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:56:37,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 01:56:37,630 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:37,812 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:38,008 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:38,335 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 7 [2020-09-25 01:56:38,498 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:38,669 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:38,840 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:39,013 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:39,179 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:39,348 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:39,659 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 01:56:39,972 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 01:56:40,291 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 01:56:40,600 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 01:56:40,745 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:56:40,917 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:41,089 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:41,242 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:41,400 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:41,558 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:41,711 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:41,883 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:42,040 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:42,200 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:42,353 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:42,511 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:42,670 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:42,829 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:42,982 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:43,136 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:43,291 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:43,449 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:43,609 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:43,767 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:43,927 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:44,085 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:44,191 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 7 [2020-09-25 01:56:44,344 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:44,503 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:44,661 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:44,819 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:44,977 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:45,130 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:45,286 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:45,446 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:45,550 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 7 [2020-09-25 01:56:45,725 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:45,883 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:46,041 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:46,149 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 7 [2020-09-25 01:56:46,315 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:46,467 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:46,626 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:46,732 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 7 [2020-09-25 01:56:46,889 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:47,051 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:47,215 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:47,375 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:47,634 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 7 [2020-09-25 01:56:47,789 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:56:47,949 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:48,107 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:48,264 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:48,422 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:48,587 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:56:49,023 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 9 [2020-09-25 01:56:49,262 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 01:56:49,497 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-25 01:56:49,737 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1 [2020-09-25 01:56:49,985 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 01:56:50,195 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 10 [2020-09-25 01:56:50,465 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:56:50,678 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 25 [2020-09-25 01:56:50,858 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 1