/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:48:16,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:48:16,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:48:16,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:48:16,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:48:16,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:48:16,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:48:16,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:48:16,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:48:16,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:48:16,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:48:16,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:48:16,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:48:16,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:48:16,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:48:16,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:48:16,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:48:16,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:48:16,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:48:16,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:48:16,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:48:16,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:48:16,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:48:16,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:48:16,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:48:16,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:48:16,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:48:16,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:48:16,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:48:16,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:48:16,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:48:16,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:48:16,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:48:16,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:48:16,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:48:16,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:48:16,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:48:16,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:48:16,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:48:16,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:48:16,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:48:16,538 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:48:16,562 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:48:16,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:48:16,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:48:16,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:48:16,564 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:48:16,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:48:16,565 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:48:16,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:48:16,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:48:16,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:48:16,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:48:16,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:48:16,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:48:16,566 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:48:16,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:48:16,566 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:48:16,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:48:16,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:48:16,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:48:16,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:48:16,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:48:16,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:48:16,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:48:16,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:48:16,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:48:16,568 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:48:16,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:48:16,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:48:16,569 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:48:16,569 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:48:17,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:48:17,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:48:17,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:48:17,025 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:48:17,026 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:48:17,027 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c [2020-09-25 00:48:17,098 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3af9b879a/0ae7c8d9ecc4464795ea03bfa90284c0/FLAG277b937f1 [2020-09-25 00:48:17,700 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:48:17,701 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c [2020-09-25 00:48:17,716 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3af9b879a/0ae7c8d9ecc4464795ea03bfa90284c0/FLAG277b937f1 [2020-09-25 00:48:17,941 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3af9b879a/0ae7c8d9ecc4464795ea03bfa90284c0 [2020-09-25 00:48:17,953 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:48:17,958 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:48:17,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:48:17,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:48:17,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:48:17,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:48:17" (1/1) ... [2020-09-25 00:48:17,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ed4b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:48:17, skipping insertion in model container [2020-09-25 00:48:17,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:48:17" (1/1) ... [2020-09-25 00:48:17,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:48:18,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:48:18,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:48:18,453 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:48:18,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:48:18,686 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:48:18,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:48:18 WrapperNode [2020-09-25 00:48:18,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:48:18,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:48:18,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:48:18,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:48:18,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:48:18" (1/1) ... [2020-09-25 00:48:18,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:48:18" (1/1) ... [2020-09-25 00:48:18,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:48:18" (1/1) ... [2020-09-25 00:48:18,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:48:18" (1/1) ... [2020-09-25 00:48:18,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:48:18" (1/1) ... [2020-09-25 00:48:18,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:48:18" (1/1) ... [2020-09-25 00:48:18,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:48:18" (1/1) ... [2020-09-25 00:48:18,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:48:18,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:48:18,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:48:18,782 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:48:18,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:48:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:48:18,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:48:18,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:48:18,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:48:18,869 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:48:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:48:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:48:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:48:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:48:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:48:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:48:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:48:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:48:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:48:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:48:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:48:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:48:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:48:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:48:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:48:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:48:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:48:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:48:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:48:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:48:18,874 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:48:18,874 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:48:18,874 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:48:18,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:48:18,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:48:18,875 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:48:18,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:48:18,875 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 00:48:18,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 00:48:18,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 00:48:18,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 00:48:18,875 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:48:18,876 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:48:18,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:48:18,876 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:48:18,876 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:48:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:48:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:48:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:48:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:48:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:48:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:48:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:48:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:48:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:48:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:48:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:48:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:48:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:48:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:48:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:48:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:48:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:48:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:48:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:48:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:48:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:48:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:48:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:48:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:48:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:48:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:48:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:48:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:48:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:48:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:48:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:48:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:48:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 00:48:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:48:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:48:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:48:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:48:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:48:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:48:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:48:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 00:48:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 00:48:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:48:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:48:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:48:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:48:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 00:48:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:48:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:48:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:48:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:48:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:48:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:48:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:48:19,989 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:48:19,989 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:48:19,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:48:19 BoogieIcfgContainer [2020-09-25 00:48:19,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:48:19,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:48:19,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:48:20,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:48:20,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:48:17" (1/3) ... [2020-09-25 00:48:20,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f1dd59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:48:20, skipping insertion in model container [2020-09-25 00:48:20,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:48:18" (2/3) ... [2020-09-25 00:48:20,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f1dd59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:48:20, skipping insertion in model container [2020-09-25 00:48:20,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:48:19" (3/3) ... [2020-09-25 00:48:20,005 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2020-09-25 00:48:20,016 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:48:20,027 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:48:20,048 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:48:20,080 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:48:20,081 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:48:20,081 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:48:20,081 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:48:20,081 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:48:20,081 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:48:20,081 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:48:20,081 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:48:20,109 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-09-25 00:48:20,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 00:48:20,129 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:48:20,131 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:48:20,131 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:48:20,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:48:20,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1009197842, now seen corresponding path program 1 times [2020-09-25 00:48:20,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:48:20,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740044546] [2020-09-25 00:48:20,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:48:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:20,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:20,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:22,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:22,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:25,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:25,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:25,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 00:48:25,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:48:25,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 00:48:25,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:25,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:48:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-25 00:48:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:48:25,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:48:26,094 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:48:26,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:48:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:26,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:26,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:26,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:48:26,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:26,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 00:48:26,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:26,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:26,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:26,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:26,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:26,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:48:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:26,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:26,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:26,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:48:26,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:26,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:48:26,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:26,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:26,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:26,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:26,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:26,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:48:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:26,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:26,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:26,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:48:26,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:26,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:48:26,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:26,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:26,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:26,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:26,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:26,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:48:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:26,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:26,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:26,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:26,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:26,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:48:26,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:26,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:26,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:26,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:26,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:26,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:48:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:26,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:26,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:26,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:48:26,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:26,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:26,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:26,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:26,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:26,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:26,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:26,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:48:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:26,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:26,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:26,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:48:26,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:26,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:48:26,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:26,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:26,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:26,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:26,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:26,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:48:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:26,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:26,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:26,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 00:48:26,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:26,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:48:26,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:26,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:26,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:26,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:26,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:48:26,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:48:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:26,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:26,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:26,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:26,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:26,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:48:26,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:26,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:26,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:26,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:26,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:26,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 00:48:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:26,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:26,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:26,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:26,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:26,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:48:26,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:26,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:48:26,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:26,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:48:26,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:26,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 00:48:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:26,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:26,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:26,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:26,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:26,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:48:26,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:26,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:48:26,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:26,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:48:26,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:26,571 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 00:48:26,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1740044546] [2020-09-25 00:48:26,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:48:26,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:48:26,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118752030] [2020-09-25 00:48:26,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:48:26,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:48:26,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:48:26,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:48:26,617 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 9 states. [2020-09-25 00:48:27,309 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:48:28,299 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:48:28,613 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:48:29,747 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:48:30,090 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:48:30,429 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:48:30,805 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:48:31,079 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:48:31,389 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:48:31,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:48:31,914 INFO L93 Difference]: Finished difference Result 552 states and 668 transitions. [2020-09-25 00:48:31,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 00:48:31,916 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-25 00:48:31,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:48:31,936 INFO L225 Difference]: With dead ends: 552 [2020-09-25 00:48:31,937 INFO L226 Difference]: Without dead ends: 381 [2020-09-25 00:48:31,943 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 00:48:31,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-09-25 00:48:32,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 333. [2020-09-25 00:48:32,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2020-09-25 00:48:32,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 372 transitions. [2020-09-25 00:48:32,065 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 372 transitions. Word has length 160 [2020-09-25 00:48:32,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:48:32,066 INFO L479 AbstractCegarLoop]: Abstraction has 333 states and 372 transitions. [2020-09-25 00:48:32,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:48:32,066 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 372 transitions. [2020-09-25 00:48:32,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 00:48:32,071 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:48:32,072 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:48:32,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:48:32,072 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:48:32,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:48:32,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1749038949, now seen corresponding path program 1 times [2020-09-25 00:48:32,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:48:32,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969900149] [2020-09-25 00:48:32,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:48:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:32,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:32,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:34,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:34,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 00:48:34,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:48:34,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2135 [2020-09-25 00:48:34,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:34,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:48:34,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-09-25 00:48:34,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:48:34,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:34,560 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:48:34,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:48:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:34,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:34,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:34,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:48:34,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:34,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 00:48:34,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:34,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:34,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:34,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:34,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:34,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:48:34,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:34,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:34,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:34,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:48:34,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:34,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:34,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:34,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:34,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:34,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:34,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:34,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:48:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:34,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:34,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:34,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:48:34,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:34,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:48:34,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:34,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:34,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:34,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:34,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:34,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:48:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:34,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:34,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:34,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:34,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:34,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:48:34,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:34,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:34,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:34,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:34,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:34,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:48:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:34,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:34,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:34,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:48:34,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:34,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:34,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:34,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:34,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:34,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:34,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:34,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:48:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:34,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:34,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:34,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:48:34,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:34,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:34,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:34,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:34,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:34,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:34,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:34,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 00:48:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:34,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:34,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:34,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 00:48:34,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:34,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:34,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:34,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:34,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:34,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:34,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:34,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:48:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:34,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:34,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:34,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:34,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:34,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:34,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:34,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:34,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:34,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:34,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:34,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 00:48:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:34,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:34,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:34,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:48:34,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:34,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 00:48:34,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:34,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:48:34,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:48:34,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:48:34,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:48:34,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:48:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:35,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:35,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:35,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:48:35,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:35,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 00:48:35,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:35,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:48:35,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:35,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:48:35,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:35,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:48:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:35,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:35,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:35,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:48:35,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:35,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:48:35,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:35,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:35,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:35,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:35,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:35,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:48:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:35,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:35,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:35,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:48:35,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:35,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:48:35,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:35,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:35,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:48:35,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:35,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:48:35,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 00:48:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:35,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:35,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:35,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:35,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:35,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:48:35,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:35,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:35,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:48:35,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:35,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:35,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 00:48:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:35,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:35,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:35,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:35,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:35,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:48:35,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:35,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:35,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:48:35,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:35,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:35,152 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 00:48:35,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969900149] [2020-09-25 00:48:35,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:48:35,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 00:48:35,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129438079] [2020-09-25 00:48:35,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:48:35,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:48:35,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:48:35,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:48:35,159 INFO L87 Difference]: Start difference. First operand 333 states and 372 transitions. Second operand 10 states. [2020-09-25 00:48:36,652 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:48:36,974 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:48:37,285 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:48:37,619 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:48:37,960 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 00:48:38,257 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:48:38,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:48:38,934 INFO L93 Difference]: Finished difference Result 640 states and 769 transitions. [2020-09-25 00:48:38,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:48:38,934 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-25 00:48:38,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:48:38,941 INFO L225 Difference]: With dead ends: 640 [2020-09-25 00:48:38,941 INFO L226 Difference]: Without dead ends: 422 [2020-09-25 00:48:38,945 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:48:38,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-09-25 00:48:39,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 344. [2020-09-25 00:48:39,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-09-25 00:48:39,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 386 transitions. [2020-09-25 00:48:39,006 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 386 transitions. Word has length 194 [2020-09-25 00:48:39,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:48:39,007 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 386 transitions. [2020-09-25 00:48:39,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:48:39,007 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 386 transitions. [2020-09-25 00:48:39,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-25 00:48:39,011 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:48:39,011 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:48:39,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:48:39,012 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:48:39,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:48:39,012 INFO L82 PathProgramCache]: Analyzing trace with hash 543186698, now seen corresponding path program 1 times [2020-09-25 00:48:39,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:48:39,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1446551725] [2020-09-25 00:48:39,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:48:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:39,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:39,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:39,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-25 00:48:39,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:39,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 754 [2020-09-25 00:48:39,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:39,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:48:39,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-25 00:48:39,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:48:39,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:48:40,156 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:48:40,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:48:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:40,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:40,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:40,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:48:40,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:40,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 00:48:40,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:40,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:40,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:40,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:40,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:40,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:48:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:40,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:40,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:40,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:48:40,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:40,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:40,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:40,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:40,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:40,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:40,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:40,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:48:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:40,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:40,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:40,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:48:40,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:40,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:40,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:40,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:40,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:40,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:40,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:40,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:48:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:40,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:40,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:40,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:40,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:40,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:48:40,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:40,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:40,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:40,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:40,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:40,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:48:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:40,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:40,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:40,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:48:40,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:40,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:48:40,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:40,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:40,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:40,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:40,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:40,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:48:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:40,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:40,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:40,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:48:40,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:40,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:40,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:40,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:40,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:40,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:40,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:40,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 00:48:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:40,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:40,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:40,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:48:40,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:40,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:48:40,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:40,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:40,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:40,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:40,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:40,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 00:48:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:40,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:40,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:40,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 00:48:40,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:40,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:48:40,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:40,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:40,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:48:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:40,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:40,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:40,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:40,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:40,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:40,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:40,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:40,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:40,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:40,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:40,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 00:48:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:40,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:40,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:40,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:48:40,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:40,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 00:48:40,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:40,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:48:40,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:48:40,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:48:40,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:40,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:48:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:40,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:40,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:40,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:48:40,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:40,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 00:48:40,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:40,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:48:40,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:48:40,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:48:40,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:40,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:48:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:40,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:40,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:40,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:48:40,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:40,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:48:40,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:40,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:48:40,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:40,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:48:40,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:48:40,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:48:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:40,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:40,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:40,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:48:40,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:40,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:40,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:40,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:40,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:48:40,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:40,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:40,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-25 00:48:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:40,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:40,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:40,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:40,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:40,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:40,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:40,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:40,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:48:40,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:40,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:40,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 00:48:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:40,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:40,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:40,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:40,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:40,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:48:40,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:40,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:40,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:48:40,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:40,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:40,694 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 00:48:40,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1446551725] [2020-09-25 00:48:40,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:48:40,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 00:48:40,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952919703] [2020-09-25 00:48:40,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:48:40,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:48:40,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:48:40,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:48:40,697 INFO L87 Difference]: Start difference. First operand 344 states and 386 transitions. Second operand 10 states. [2020-09-25 00:48:42,061 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:48:42,368 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:48:42,714 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:48:43,057 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:48:43,350 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:48:44,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:48:44,214 INFO L93 Difference]: Finished difference Result 732 states and 922 transitions. [2020-09-25 00:48:44,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 00:48:44,216 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 207 [2020-09-25 00:48:44,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:48:44,224 INFO L225 Difference]: With dead ends: 732 [2020-09-25 00:48:44,224 INFO L226 Difference]: Without dead ends: 503 [2020-09-25 00:48:44,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-25 00:48:44,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-09-25 00:48:44,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 350. [2020-09-25 00:48:44,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-09-25 00:48:44,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 392 transitions. [2020-09-25 00:48:44,294 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 392 transitions. Word has length 207 [2020-09-25 00:48:44,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:48:44,295 INFO L479 AbstractCegarLoop]: Abstraction has 350 states and 392 transitions. [2020-09-25 00:48:44,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:48:44,295 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 392 transitions. [2020-09-25 00:48:44,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-25 00:48:44,298 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:48:44,298 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:48:44,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:48:44,298 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:48:44,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:48:44,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1587935993, now seen corresponding path program 1 times [2020-09-25 00:48:44,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:48:44,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1464351561] [2020-09-25 00:48:44,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:48:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:44,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:45,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:45,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-25 00:48:45,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:45,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1477 [2020-09-25 00:48:45,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:45,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:48:45,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 00:48:45,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 00:48:45,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:46,136 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:48:46,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:48:46,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:46,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:46,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:46,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:48:46,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:46,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-25 00:48:46,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:46,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:48:46,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:46,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 00:48:46,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:46,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:48:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:46,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:46,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:46,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:48:46,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:46,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:48:46,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:46,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:48:46,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:46,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:48:46,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:46,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:48:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:46,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:46,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:46,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:48:46,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:46,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:48:46,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:46,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:48:46,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:46,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:48:46,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:46,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:48:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:46,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:46,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:46,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:46,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:46,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:48:46,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:46,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:48:46,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:46,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:48:46,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:46,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:48:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:46,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:46,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:46,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:48:46,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:46,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:48:46,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:46,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:48:46,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:46,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:48:46,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:46,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:48:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:46,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:46,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:46,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:48:46,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:46,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:48:46,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:46,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:48:46,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:46,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 00:48:46,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:46,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 00:48:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:46,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:46,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:46,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:48:46,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:46,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:48:46,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:46,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:48:46,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:46,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 00:48:46,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:46,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 00:48:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:46,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:46,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:46,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 00:48:46,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:46,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:48:46,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:46,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:48:46,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:46,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 00:48:46,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:46,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:48:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:46,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:46,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:46,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:46,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:46,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:48:46,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:46,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:46,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 00:48:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:46,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:46,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:46,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:48:46,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:46,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 00:48:46,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:46,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:48:46,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 00:48:46,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 00:48:46,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:48:46,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:48:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:46,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:46,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:46,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:48:46,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:46,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 00:48:46,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:46,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:48:46,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:46,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:48:46,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:48:46,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:48:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:46,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:46,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:46,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:48:46,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:46,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:48:46,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:46,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:48:46,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:46,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 00:48:46,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:46,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:48:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:46,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:46,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:46,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:48:46,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:46,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:48:46,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:48:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 00:48:46,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:48:46,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-25 00:48:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:46,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:46,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:46,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:46,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:46,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:46,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:46,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:46,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:48:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:46,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:48:46,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 00:48:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:46,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:46,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:46,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:46,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:46,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:46,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:46,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:46,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:48:46,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:46,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:48:46,721 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 00:48:46,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1464351561] [2020-09-25 00:48:46,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:48:46,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:48:46,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361333228] [2020-09-25 00:48:46,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:48:46,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:48:46,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:48:46,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:48:46,725 INFO L87 Difference]: Start difference. First operand 350 states and 392 transitions. Second operand 8 states. [2020-09-25 00:48:47,293 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:48:49,089 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:48:51,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:48:51,583 INFO L93 Difference]: Finished difference Result 1304 states and 1748 transitions. [2020-09-25 00:48:51,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 00:48:51,583 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 207 [2020-09-25 00:48:51,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:48:51,596 INFO L225 Difference]: With dead ends: 1304 [2020-09-25 00:48:51,597 INFO L226 Difference]: Without dead ends: 1050 [2020-09-25 00:48:51,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=160, Invalid=490, Unknown=0, NotChecked=0, Total=650 [2020-09-25 00:48:51,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2020-09-25 00:48:51,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 701. [2020-09-25 00:48:51,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 701 states. [2020-09-25 00:48:51,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 829 transitions. [2020-09-25 00:48:51,716 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 829 transitions. Word has length 207 [2020-09-25 00:48:51,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:48:51,716 INFO L479 AbstractCegarLoop]: Abstraction has 701 states and 829 transitions. [2020-09-25 00:48:51,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:48:51,716 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 829 transitions. [2020-09-25 00:48:51,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-25 00:48:51,723 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:48:51,723 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:48:51,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:48:51,723 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:48:51,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:48:51,724 INFO L82 PathProgramCache]: Analyzing trace with hash -174971678, now seen corresponding path program 1 times [2020-09-25 00:48:51,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:48:51,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [623933904] [2020-09-25 00:48:51,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:48:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:51,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:51,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:52,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:52,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:53,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:53,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:55,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:56,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:56,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-09-25 00:48:56,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 00:48:56,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 00:48:56,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:56,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:48:56,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-25 00:48:56,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 00:48:56,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:57,159 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:48:57,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:48:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:48:57,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 00:48:57,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:57,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:57,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:57,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 00:48:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:48:57,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:57,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:57,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:57,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:57,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 00:48:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:48:57,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:57,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:57,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:48:57,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 00:48:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:57,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:48:57,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:57,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:57,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:57,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 00:48:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:48:57,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:57,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:57,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:57,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:57,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 00:48:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:48:57,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:57,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:57,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:57,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:57,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 00:48:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 00:48:57,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:48:57,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:57,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:57,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:57,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 00:48:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:48:57,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:57,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:57,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:57,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:57,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 00:48:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 00:48:57,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 00:48:57,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:48:57,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:48:57,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:48:57,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:48:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 00:48:57,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:57,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:57,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:57,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:57,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:48:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:57,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:48:57,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:57,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:57,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:57,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 00:48:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 00:48:57,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 00:48:57,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:48:57,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 00:48:57,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:48:57,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:48:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:57,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:48:57,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:48:57,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:48:57,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:48:57,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-25 00:48:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 00:48:57,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:48:57,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:48:57,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 00:48:57,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:48:57,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:48:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:57,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:57,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:57,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:48:57,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 00:48:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:48:57,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 00:48:57,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:48:57,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 00:48:57,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:57,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:48:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:48:57,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:48:57,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:57,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:57,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:57,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:48:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:48:57,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:48:57,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:57,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:57,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:57,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:48:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:48:57,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:57,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:57,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:57,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:57,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-09-25 00:48:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:57,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:48:57,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:48:57,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:48:57,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:48:57,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:57,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-09-25 00:48:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:48:57,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:48:57,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:48:57,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:48:57,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:48:57,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:48:57,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:48:57,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:48:57,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:48:57,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:48:57,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:48:57,850 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 00:48:57,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [623933904] [2020-09-25 00:48:57,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:48:57,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 00:48:57,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247511407] [2020-09-25 00:48:57,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 00:48:57,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:48:57,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 00:48:57,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:48:57,852 INFO L87 Difference]: Start difference. First operand 701 states and 829 transitions. Second operand 15 states. [2020-09-25 00:48:59,370 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:48:59,668 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:48:59,978 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:49:00,315 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:49:00,609 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:49:01,205 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-25 00:49:01,891 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:49:02,949 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 00:49:03,297 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 00:49:03,904 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-25 00:49:04,579 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 194 [2020-09-25 00:49:06,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:49:06,941 INFO L93 Difference]: Finished difference Result 2576 states and 3674 transitions. [2020-09-25 00:49:06,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-09-25 00:49:06,943 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 249 [2020-09-25 00:49:06,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:49:06,956 INFO L225 Difference]: With dead ends: 2576 [2020-09-25 00:49:06,956 INFO L226 Difference]: Without dead ends: 1803 [2020-09-25 00:49:06,962 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=480, Invalid=1412, Unknown=0, NotChecked=0, Total=1892 [2020-09-25 00:49:06,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2020-09-25 00:49:07,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1099. [2020-09-25 00:49:07,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1099 states. [2020-09-25 00:49:07,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1412 transitions. [2020-09-25 00:49:07,147 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1412 transitions. Word has length 249 [2020-09-25 00:49:07,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:49:07,148 INFO L479 AbstractCegarLoop]: Abstraction has 1099 states and 1412 transitions. [2020-09-25 00:49:07,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 00:49:07,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1412 transitions. [2020-09-25 00:49:07,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 00:49:07,153 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:49:07,153 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:49:07,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:49:07,154 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:49:07,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:49:07,154 INFO L82 PathProgramCache]: Analyzing trace with hash 445785641, now seen corresponding path program 1 times [2020-09-25 00:49:07,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:49:07,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009577727] [2020-09-25 00:49:07,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:49:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:49:07,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking...