/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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:07:14,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:07:14,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:07:14,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:07:14,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:07:14,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:07:14,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:07:14,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:07:14,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:07:14,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:07:14,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:07:14,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:07:14,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:07:14,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:07:14,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:07:14,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:07:14,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:07:14,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:07:14,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:07:14,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:07:14,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:07:14,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:07:14,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:07:14,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:07:14,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:07:14,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:07:14,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:07:14,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:07:14,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:07:14,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:07:14,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:07:14,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:07:14,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:07:14,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:07:14,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:07:14,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:07:14,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:07:14,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:07:14,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:07:14,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:07:14,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:07:14,506 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:07:14,535 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:07:14,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:07:14,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:07:14,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:07:14,539 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:07:14,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:07:14,540 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:07:14,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:07:14,540 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:07:14,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:07:14,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:07:14,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:07:14,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:07:14,541 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:07:14,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:07:14,542 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:07:14,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:07:14,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:07:14,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:07:14,543 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:07:14,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:07:14,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:07:14,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:07:14,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:07:14,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:07:14,544 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:07:14,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:07:14,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:07:14,545 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:07:14,545 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:07:14,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:07:14,974 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:07:14,978 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:07:14,980 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:07:14,981 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:07:14,982 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-24 20:07:15,073 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1d092a1e3/ee99cb2e98844c67b51837e60d94487d/FLAG9a1db5b9a [2020-09-24 20:07:15,707 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:07:15,708 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-24 20:07:15,721 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1d092a1e3/ee99cb2e98844c67b51837e60d94487d/FLAG9a1db5b9a [2020-09-24 20:07:15,969 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1d092a1e3/ee99cb2e98844c67b51837e60d94487d [2020-09-24 20:07:15,985 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:07:15,992 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:07:15,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:07:15,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:07:16,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:07:16,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:07:15" (1/1) ... [2020-09-24 20:07:16,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:16, skipping insertion in model container [2020-09-24 20:07:16,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:07:15" (1/1) ... [2020-09-24 20:07:16,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:07:16,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:07:16,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:07:16,702 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:07:16,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:07:16,833 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:07:16,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:16 WrapperNode [2020-09-24 20:07:16,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:07:16,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:07:16,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:07:16,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:07:16,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:16" (1/1) ... [2020-09-24 20:07:16,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:16" (1/1) ... [2020-09-24 20:07:16,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:16" (1/1) ... [2020-09-24 20:07:16,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:16" (1/1) ... [2020-09-24 20:07:16,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:16" (1/1) ... [2020-09-24 20:07:16,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:16" (1/1) ... [2020-09-24 20:07:16,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:16" (1/1) ... [2020-09-24 20:07:16,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:07:16,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:07:16,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:07:16,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:07:16,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:07:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:07:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:07:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:07:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:07:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:07:17,013 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:07:17,013 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:07:17,013 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:07:17,013 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:07:17,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:07:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:07:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:07:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:07:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 20:07:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 20:07:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:07:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:07:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:07:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:07:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:07:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:07:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:07:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:07:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:07:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:07:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:07:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:07:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:07:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:07:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:07:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:07:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:07:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:07:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 20:07:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:07:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:07:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:07:17,019 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:07:17,019 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:07:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:07:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:07:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:07:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:07:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:07:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:07:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:07:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:07:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:07:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:07:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:07:17,021 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:07:17,021 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:07:17,021 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 20:07:17,021 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 20:07:17,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 20:07:17,021 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:07:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:07:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:07:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:07:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:07:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:07:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:07:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:07:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:07:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:07:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:07:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:07:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:07:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:07:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:07:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:07:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:07:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:07:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:07:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:07:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:07:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:07:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:07:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:07:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:07:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:07:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:07:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:07:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:07:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:07:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:07:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:07:17,027 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:07:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:07:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:07:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:07:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:07:18,252 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:07:18,252 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:07:18,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:07:18 BoogieIcfgContainer [2020-09-24 20:07:18,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:07:18,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:07:18,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:07:18,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:07:18,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:07:15" (1/3) ... [2020-09-24 20:07:18,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d7be54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:07:18, skipping insertion in model container [2020-09-24 20:07:18,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:16" (2/3) ... [2020-09-24 20:07:18,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d7be54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:07:18, skipping insertion in model container [2020-09-24 20:07:18,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:07:18" (3/3) ... [2020-09-24 20:07:18,271 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2020-09-24 20:07:18,285 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:07:18,297 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:07:18,322 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:07:18,361 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:07:18,361 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:07:18,361 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:07:18,361 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:07:18,362 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:07:18,362 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:07:18,362 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:07:18,362 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:07:18,396 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-09-24 20:07:18,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 20:07:18,415 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:07:18,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:07:18,420 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:07:18,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:07:18,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1033241294, now seen corresponding path program 1 times [2020-09-24 20:07:18,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:07:18,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [665301221] [2020-09-24 20:07:18,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:07:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:18,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:19,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:20,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:21,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:23,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:23,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:23,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 20:07:23,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:07:23,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-24 20:07:23,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:23,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:07:23,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 20:07:23,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-24 20:07:23,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:07:24,336 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:07:24,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:07:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:24,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:24,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:24,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:07:24,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:24,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-09-24 20:07:24,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:24,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:24,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:24,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 20:07:24,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:24,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:07:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:24,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:24,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:24,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:24,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:24,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:07:24,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:24,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:24,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:24,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:24,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:07:24,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:07:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:24,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:24,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:24,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:24,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:24,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:07:24,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:24,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:24,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:24,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:24,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:24,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:07:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:24,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:24,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:24,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:24,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:24,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:07:24,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:24,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:24,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:24,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:24,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:24,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:07:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:24,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:24,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:24,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:24,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:24,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:07:24,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:24,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:24,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:24,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:24,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:24,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:07:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:24,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:24,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:24,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:24,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:24,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:07:24,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:24,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:24,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:24,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:24,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:24,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 20:07:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:24,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:24,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:24,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:24,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:24,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:07:24,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:24,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:07:24,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:24,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:24,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:24,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:07:24,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [665301221] [2020-09-24 20:07:24,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:07:24,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:07:24,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686450383] [2020-09-24 20:07:24,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:07:24,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:07:24,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:07:24,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:07:24,990 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 8 states. [2020-09-24 20:07:25,620 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:07:27,039 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:07:27,376 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:07:27,768 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:07:28,113 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:07:28,439 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:07:29,146 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:07:29,428 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:07:29,825 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:07:30,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:07:30,882 INFO L93 Difference]: Finished difference Result 559 states and 699 transitions. [2020-09-24 20:07:30,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 20:07:30,884 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 20:07:30,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:07:30,907 INFO L225 Difference]: With dead ends: 559 [2020-09-24 20:07:30,908 INFO L226 Difference]: Without dead ends: 379 [2020-09-24 20:07:30,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:07:30,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-09-24 20:07:31,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 334. [2020-09-24 20:07:31,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-09-24 20:07:31,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 382 transitions. [2020-09-24 20:07:31,089 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 382 transitions. Word has length 142 [2020-09-24 20:07:31,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:07:31,091 INFO L479 AbstractCegarLoop]: Abstraction has 334 states and 382 transitions. [2020-09-24 20:07:31,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:07:31,091 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 382 transitions. [2020-09-24 20:07:31,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 20:07:31,097 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:07:31,097 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2020-09-24 20:07:31,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:07:31,098 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:07:31,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:07:31,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1702989338, now seen corresponding path program 1 times [2020-09-24 20:07:31,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:07:31,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319786356] [2020-09-24 20:07:31,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:07:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:31,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:31,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:31,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:32,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:36,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:36,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-24 20:07:36,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:07:36,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-24 20:07:36,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:36,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:07:36,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 20:07:36,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-24 20:07:36,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:36,527 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:07:36,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:07:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:36,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:36,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:36,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:07:36,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:36,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-24 20:07:36,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:36,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:36,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:36,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 20:07:36,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:36,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:07:36,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:36,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:36,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:36,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:36,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:36,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:07:36,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:36,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:36,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:36,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:36,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:07:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:36,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:36,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:36,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:36,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:36,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:07:36,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:36,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:36,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:36,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:36,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:36,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:07:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:36,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:36,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:36,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:36,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:36,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:07:36,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:36,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:36,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:36,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:36,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:36,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:07:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:36,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:36,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:36,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:36,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:36,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:07:36,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:36,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:36,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:36,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:36,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:36,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 20:07:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:36,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:36,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:36,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:07:36,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:36,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:07:36,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 20:07:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 20:07:36,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:36,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:07:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:36,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:36,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:36,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:07:36,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:36,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:07:36,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:36,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:36,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:36,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 20:07:36,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:36,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:07:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:36,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:36,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:36,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:36,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:36,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:07:36,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:07:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:07:36,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:36,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 20:07:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:36,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:36,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:37,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:37,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:07:37,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:07:37,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 20:07:37,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:37,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:07:37,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:07:37,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:07:37,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:37,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:07:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:37,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:37,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:37,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:07:37,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:37,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 20:07:37,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:37,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:07:37,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:37,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:07:37,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:37,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:07:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:37,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:37,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:37,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:07:37,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:37,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:07:37,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:37,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:07:37,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:37,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:07:37,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:37,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:07:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:37,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:37,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:37,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:07:37,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:37,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:07:37,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:37,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:07:37,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:07:37,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:07:37,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:37,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 20:07:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:37,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:37,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:37,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:37,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:37,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:07:37,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:37,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:07:37,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:07:37,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:07:37,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:37,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 20:07:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:37,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:37,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:37,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:37,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:37,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:07:37,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:37,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:07:37,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:07:37,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:07:37,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:37,284 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 20:07:37,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319786356] [2020-09-24 20:07:37,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:07:37,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 20:07:37,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627303752] [2020-09-24 20:07:37,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 20:07:37,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:07:37,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 20:07:37,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-24 20:07:37,291 INFO L87 Difference]: Start difference. First operand 334 states and 382 transitions. Second operand 12 states. [2020-09-24 20:07:37,869 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:07:39,178 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:07:39,566 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:07:39,942 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:07:40,286 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:07:40,657 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:07:41,046 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:07:41,379 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:07:42,178 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:07:42,548 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:07:42,920 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:07:43,318 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:07:43,740 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:07:44,085 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:07:46,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:07:46,131 INFO L93 Difference]: Finished difference Result 980 states and 1271 transitions. [2020-09-24 20:07:46,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 20:07:46,132 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 200 [2020-09-24 20:07:46,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:07:46,146 INFO L225 Difference]: With dead ends: 980 [2020-09-24 20:07:46,146 INFO L226 Difference]: Without dead ends: 756 [2020-09-24 20:07:46,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2020-09-24 20:07:46,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-09-24 20:07:46,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 555. [2020-09-24 20:07:46,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2020-09-24 20:07:46,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 647 transitions. [2020-09-24 20:07:46,283 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 647 transitions. Word has length 200 [2020-09-24 20:07:46,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:07:46,284 INFO L479 AbstractCegarLoop]: Abstraction has 555 states and 647 transitions. [2020-09-24 20:07:46,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 20:07:46,284 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 647 transitions. [2020-09-24 20:07:46,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 20:07:46,296 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:07:46,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:07:46,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:07:46,297 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:07:46,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:07:46,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1523867426, now seen corresponding path program 1 times [2020-09-24 20:07:46,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:07:46,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1205613351] [2020-09-24 20:07:46,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:07:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:46,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:46,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:47,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:51,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:51,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-24 20:07:51,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:07:51,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 20:07:51,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:51,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:07:51,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 20:07:51,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 20:07:51,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:51,739 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:07:51,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:07:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:51,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:52,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:52,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:07:52,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:52,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-24 20:07:52,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:52,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:52,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:52,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 20:07:52,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:07:52,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:07:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:52,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:52,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:52,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:52,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:52,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:07:52,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:52,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:52,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:52,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:52,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:52,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:07:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:52,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:52,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:52,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:52,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:52,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:07:52,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:52,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:52,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:52,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:52,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:52,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:07:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:52,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:52,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:52,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:52,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:52,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:07:52,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:52,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:52,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:52,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:52,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:52,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:07:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:52,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:52,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:52,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:52,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:52,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:07:52,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:52,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:52,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:52,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:52,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:52,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 20:07:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:52,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:52,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:52,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:52,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:07:52,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:07:52,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 20:07:52,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:52,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:07:52,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:07:52,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:07:52,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:52,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:07:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:52,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:52,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:52,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:07:52,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:52,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 20:07:52,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:52,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:07:52,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:07:52,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:07:52,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:52,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:07:52,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:52,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:52,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:52,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:07:52,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:52,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:07:52,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:52,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:07:52,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:52,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:52,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:52,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:07:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:52,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:52,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:52,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:07:52,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:52,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:07:52,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:52,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:07:52,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:07:52,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:07:52,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:52,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 20:07:52,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:52,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:52,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:52,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:52,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:52,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:07:52,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:52,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:07:52,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:52,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:52,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:52,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 20:07:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:52,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:52,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:52,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:52,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:52,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:07:52,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:07:52,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:07:52,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:07:52,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:52,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:07:52,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1205613351] [2020-09-24 20:07:52,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:07:52,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 20:07:52,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544168532] [2020-09-24 20:07:52,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 20:07:52,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:07:52,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 20:07:52,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:07:52,612 INFO L87 Difference]: Start difference. First operand 555 states and 647 transitions. Second operand 13 states. [2020-09-24 20:07:53,256 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:07:54,391 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:07:54,733 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:07:55,105 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:07:55,484 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:07:55,815 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:07:56,636 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-24 20:07:57,251 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-24 20:07:57,617 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:07:57,970 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:07:58,263 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:07:58,587 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:07:58,934 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:07:59,234 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:07:59,589 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:07:59,993 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:00,394 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:00,700 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:08:01,011 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:02,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:08:02,828 INFO L93 Difference]: Finished difference Result 1682 states and 2262 transitions. [2020-09-24 20:08:02,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 20:08:02,829 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 176 [2020-09-24 20:08:02,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:08:02,838 INFO L225 Difference]: With dead ends: 1682 [2020-09-24 20:08:02,838 INFO L226 Difference]: Without dead ends: 1148 [2020-09-24 20:08:02,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=191, Invalid=931, Unknown=0, NotChecked=0, Total=1122 [2020-09-24 20:08:02,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2020-09-24 20:08:02,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 933. [2020-09-24 20:08:02,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-09-24 20:08:02,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1084 transitions. [2020-09-24 20:08:02,973 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1084 transitions. Word has length 176 [2020-09-24 20:08:02,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:08:02,974 INFO L479 AbstractCegarLoop]: Abstraction has 933 states and 1084 transitions. [2020-09-24 20:08:02,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 20:08:02,974 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1084 transitions. [2020-09-24 20:08:02,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 20:08:02,978 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:08:02,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:08:02,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:08:02,979 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:08:02,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:08:02,979 INFO L82 PathProgramCache]: Analyzing trace with hash -580417043, now seen corresponding path program 1 times [2020-09-24 20:08:02,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:08:02,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052363856] [2020-09-24 20:08:02,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:08:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:03,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:04,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:04,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 20:08:04,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:04,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1223 [2020-09-24 20:08:04,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 20:08:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 20:08:04,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 20:08:04,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:04,625 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:08:04,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:08:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:04,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:04,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:04,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:08:04,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:04,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-24 20:08:04,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:04,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:04,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:04,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:08:04,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:04,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:08:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:04,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:04,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:04,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:04,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:04,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:04,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:04,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:04,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:04,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:04,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:04,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:08:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:04,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:04,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:04,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:04,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:04,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:04,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:04,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:04,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:04,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:04,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:04,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:08:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:04,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:04,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:04,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:04,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:04,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:08:04,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:05,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:05,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:05,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:08:05,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:05,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:08:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:05,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:05,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:05,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:05,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:05,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:05,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:05,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:05,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:05,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:05,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:05,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:08:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:05,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:05,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:05,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:08:05,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:05,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:08:05,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:05,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:05,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:05,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:08:05,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:05,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 20:08:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:05,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:05,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:05,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:08:05,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:05,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:08:05,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:05,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:05,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:05,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:08:05,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:05,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 20:08:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:05,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:05,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:05,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:08:05,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:05,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 20:08:05,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:05,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:05,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 20:08:05,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 20:08:05,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:05,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:05,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:05,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:05,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:08:05,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:05,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 20:08:05,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:05,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:05,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:05,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:08:05,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:05,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:08:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:05,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:05,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:05,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:08:05,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:05,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:08:05,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:05,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:05,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:05,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 20:08:05,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:05,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:08:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:05,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:05,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:05,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:08:05,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:05,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:08:05,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:05,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:05,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:05,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:08:05,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:05,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 20:08:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:05,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:05,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:05,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:05,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:05,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:05,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:05,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:05,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:08:05,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:05,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:05,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 20:08:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:05,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:05,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:05,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:05,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:05,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:05,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:05,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:05,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:08:05,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:05,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:05,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:08:05,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052363856] [2020-09-24 20:08:05,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:08:05,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:08:05,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528572732] [2020-09-24 20:08:05,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:08:05,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:08:05,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:08:05,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:08:05,287 INFO L87 Difference]: Start difference. First operand 933 states and 1084 transitions. Second operand 9 states. [2020-09-24 20:08:06,078 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:08:06,601 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186