/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec14_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 11:19:26,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 11:19:26,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 11:19:26,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 11:19:26,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 11:19:26,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 11:19:26,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 11:19:26,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 11:19:26,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 11:19:26,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 11:19:26,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 11:19:26,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 11:19:26,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 11:19:26,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 11:19:26,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 11:19:26,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 11:19:26,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 11:19:26,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 11:19:26,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 11:19:26,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 11:19:26,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 11:19:26,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 11:19:26,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 11:19:26,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 11:19:26,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 11:19:26,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 11:19:26,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 11:19:26,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 11:19:26,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 11:19:26,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 11:19:26,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 11:19:26,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 11:19:26,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 11:19:26,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 11:19:26,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 11:19:26,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 11:19:26,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 11:19:26,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 11:19:26,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 11:19:26,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 11:19:26,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 11:19:26,131 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 [2020-10-13 11:19:26,152 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 11:19:26,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 11:19:26,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 11:19:26,154 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 11:19:26,154 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 11:19:26,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 11:19:26,154 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 11:19:26,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 11:19:26,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 11:19:26,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 11:19:26,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 11:19:26,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 11:19:26,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 11:19:26,155 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 11:19:26,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 11:19:26,156 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 11:19:26,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 11:19:26,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 11:19:26,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 11:19:26,157 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 11:19:26,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 11:19:26,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 11:19:26,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 11:19:26,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 11:19:26,158 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 11:19:26,158 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 11:19:26,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 11:19:26,158 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 11:19:26,158 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 11:19:26,159 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 11:19:26,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 11:19:26,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 11:19:26,490 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 11:19:26,491 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 11:19:26,491 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 11:19:26,492 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product20.cil.c [2020-10-13 11:19:26,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/53be77cdd/934b2db7112641c6bbdc0695dd9a583e/FLAG47e373f98 [2020-10-13 11:19:27,231 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 11:19:27,232 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/elevator_spec14_product20.cil.c [2020-10-13 11:19:27,262 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/53be77cdd/934b2db7112641c6bbdc0695dd9a583e/FLAG47e373f98 [2020-10-13 11:19:27,344 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/53be77cdd/934b2db7112641c6bbdc0695dd9a583e [2020-10-13 11:19:27,353 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 11:19:27,355 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 11:19:27,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 11:19:27,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 11:19:27,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 11:19:27,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:19:27" (1/1) ... [2020-10-13 11:19:27,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c8b7f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:27, skipping insertion in model container [2020-10-13 11:19:27,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:19:27" (1/1) ... [2020-10-13 11:19:27,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 11:19:27,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 11:19:28,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 11:19:28,198 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 11:19:28,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 11:19:28,465 INFO L208 MainTranslator]: Completed translation [2020-10-13 11:19:28,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:28 WrapperNode [2020-10-13 11:19:28,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 11:19:28,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 11:19:28,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 11:19:28,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 11:19:28,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:28" (1/1) ... [2020-10-13 11:19:28,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:28" (1/1) ... [2020-10-13 11:19:28,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:28" (1/1) ... [2020-10-13 11:19:28,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:28" (1/1) ... [2020-10-13 11:19:28,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:28" (1/1) ... [2020-10-13 11:19:28,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:28" (1/1) ... [2020-10-13 11:19:28,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:28" (1/1) ... [2020-10-13 11:19:28,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 11:19:28,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 11:19:28,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 11:19:28,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 11:19:28,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:28" (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 [2020-10-13 11:19:28,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 11:19:28,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 11:19:28,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-13 11:19:28,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-13 11:19:28,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-13 11:19:28,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-13 11:19:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-13 11:19:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-13 11:19:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-13 11:19:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2020-10-13 11:19:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2020-10-13 11:19:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification14_spec__1 [2020-10-13 11:19:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2020-10-13 11:19:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2020-10-13 11:19:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2020-10-13 11:19:28,764 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2020-10-13 11:19:28,764 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2020-10-13 11:19:28,764 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2020-10-13 11:19:28,764 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2020-10-13 11:19:28,764 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2020-10-13 11:19:28,765 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 11:19:28,765 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2020-10-13 11:19:28,765 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2020-10-13 11:19:28,765 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2020-10-13 11:19:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-13 11:19:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2020-10-13 11:19:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-13 11:19:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-13 11:19:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 11:19:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-13 11:19:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-13 11:19:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-13 11:19:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-13 11:19:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-13 11:19:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2020-10-13 11:19:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2020-10-13 11:19:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2020-10-13 11:19:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2020-10-13 11:19:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2020-10-13 11:19:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2020-10-13 11:19:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2020-10-13 11:19:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2020-10-13 11:19:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2020-10-13 11:19:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2020-10-13 11:19:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2020-10-13 11:19:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2020-10-13 11:19:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2020-10-13 11:19:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2020-10-13 11:19:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2020-10-13 11:19:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2020-10-13 11:19:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2020-10-13 11:19:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2020-10-13 11:19:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2020-10-13 11:19:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2020-10-13 11:19:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2020-10-13 11:19:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2020-10-13 11:19:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2020-10-13 11:19:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2020-10-13 11:19:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2020-10-13 11:19:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2020-10-13 11:19:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2020-10-13 11:19:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2020-10-13 11:19:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2020-10-13 11:19:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2020-10-13 11:19:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2020-10-13 11:19:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2020-10-13 11:19:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2020-10-13 11:19:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-13 11:19:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor [2020-10-13 11:19:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2020-10-13 11:19:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2020-10-13 11:19:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2020-10-13 11:19:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2020-10-13 11:19:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2020-10-13 11:19:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2020-10-13 11:19:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2020-10-13 11:19:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-13 11:19:28,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 11:19:28,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 11:19:28,776 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-13 11:19:28,776 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 11:19:28,776 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 11:19:28,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-13 11:19:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 11:19:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 11:19:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 11:19:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 11:19:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-13 11:19:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 11:19:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-13 11:19:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-13 11:19:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 11:19:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-13 11:19:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-13 11:19:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 11:19:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-13 11:19:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2020-10-13 11:19:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2020-10-13 11:19:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-13 11:19:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2020-10-13 11:19:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2020-10-13 11:19:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2020-10-13 11:19:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2020-10-13 11:19:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2020-10-13 11:19:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2020-10-13 11:19:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-13 11:19:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2020-10-13 11:19:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2020-10-13 11:19:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2020-10-13 11:19:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2020-10-13 11:19:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification14_spec__1 [2020-10-13 11:19:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 11:19:28,782 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2020-10-13 11:19:28,782 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2020-10-13 11:19:28,782 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2020-10-13 11:19:28,782 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2020-10-13 11:19:28,782 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2020-10-13 11:19:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2020-10-13 11:19:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2020-10-13 11:19:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2020-10-13 11:19:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2020-10-13 11:19:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 11:19:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2020-10-13 11:19:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2020-10-13 11:19:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2020-10-13 11:19:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-13 11:19:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2020-10-13 11:19:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-13 11:19:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-13 11:19:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-13 11:19:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-13 11:19:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-13 11:19:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-13 11:19:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 11:19:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-13 11:19:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2020-10-13 11:19:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2020-10-13 11:19:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2020-10-13 11:19:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2020-10-13 11:19:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2020-10-13 11:19:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2020-10-13 11:19:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2020-10-13 11:19:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 11:19:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2020-10-13 11:19:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2020-10-13 11:19:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2020-10-13 11:19:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2020-10-13 11:19:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2020-10-13 11:19:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2020-10-13 11:19:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2020-10-13 11:19:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2020-10-13 11:19:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2020-10-13 11:19:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2020-10-13 11:19:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2020-10-13 11:19:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2020-10-13 11:19:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2020-10-13 11:19:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2020-10-13 11:19:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2020-10-13 11:19:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2020-10-13 11:19:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2020-10-13 11:19:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2020-10-13 11:19:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2020-10-13 11:19:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2020-10-13 11:19:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2020-10-13 11:19:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor [2020-10-13 11:19:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2020-10-13 11:19:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 11:19:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 11:19:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 11:19:31,042 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 11:19:31,042 INFO L295 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-13 11:19:31,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:19:31 BoogieIcfgContainer [2020-10-13 11:19:31,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 11:19:31,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 11:19:31,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 11:19:31,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 11:19:31,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:19:27" (1/3) ... [2020-10-13 11:19:31,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd5a8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:19:31, skipping insertion in model container [2020-10-13 11:19:31,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:28" (2/3) ... [2020-10-13 11:19:31,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd5a8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:19:31, skipping insertion in model container [2020-10-13 11:19:31,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:19:31" (3/3) ... [2020-10-13 11:19:31,061 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product20.cil.c [2020-10-13 11:19:31,074 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 11:19:31,085 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 11:19:31,103 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 11:19:31,135 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 11:19:31,135 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 11:19:31,135 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 11:19:31,135 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 11:19:31,135 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 11:19:31,135 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 11:19:31,136 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 11:19:31,136 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 11:19:31,175 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states. [2020-10-13 11:19:31,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-13 11:19:31,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:19:31,193 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 11:19:31,193 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:19:31,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:19:31,201 INFO L82 PathProgramCache]: Analyzing trace with hash -570931917, now seen corresponding path program 1 times [2020-10-13 11:19:31,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:19:31,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639324117] [2020-10-13 11:19:31,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:19:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:19:31,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:32,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:32,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:33,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:36,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:36,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:19:36,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-13 11:19:36,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 11:19:36,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-13 11:19:36,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:19:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:19:36,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-13 11:19:36,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 11:19:36,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 11:19:37,765 WARN L193 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-13 11:19:37,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:19:37,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:19:37,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:37,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:19:37,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:19:37,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:19:37,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 11:19:37,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:19:37,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:19:37,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:19:37,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:19:37,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:19:37,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 11:19:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:19:37,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:37,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:19:37,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:19:37,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:19:37,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:19:37,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:19:37,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:19:37,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:19:37,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:19:37,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:19:37,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 11:19:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:19:37,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:37,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:19:37,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:19:37,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:19:37,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:19:37,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:19:37,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:19:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:19:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:19:37,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:19:37,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 11:19:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:19:37,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:37,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:19:37,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:19:37,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:19:37,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:19:37,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:19:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:19:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:19:37,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:19:37,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:19:37,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 11:19:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:19:37,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:37,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:19:37,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:19:37,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:19:37,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:19:37,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:19:37,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:19:37,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:19:37,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:19:37,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:19:37,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 11:19:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:19:38,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:38,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:38,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:38,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:38,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:19:38,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 11:19:38,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 11:19:38,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-10-13 11:19:38,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:19:38,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:19:38,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 11:19:38,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 11:19:38,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:19:38,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:19:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:19:38,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:38,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:19:38,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:19:38,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:19:38,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 11:19:38,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:19:38,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:19:38,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 11:19:38,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 11:19:38,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:19:38,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 11:19:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:19:38,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:38,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:38,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:19:38,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 11:19:38,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 11:19:38,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 11:19:38,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:19:38,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:19:38,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 11:19:38,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:19:38,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:19:38,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 11:19:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:19:38,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:38,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:19:38,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:19:38,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:19:38,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:19:38,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:19:38,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:19:38,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:19:38,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:19:38,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:19:38,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 11:19:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:19:38,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:38,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:19:38,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:19:38,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:19:38,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:19:38,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:19:38,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:19:38,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:19:38,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:19:38,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:19:38,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 11:19:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:19:38,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:38,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:19:38,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 11:19:38,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:19:38,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 11:19:38,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:19:38,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:19:38,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 11:19:38,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:19:38,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:19:38,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:19:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:19:38,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:38,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:19:38,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:19:38,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:19:38,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:19:38,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:19:38,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:19:38,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:19:38,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:19:38,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:19:38,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 11:19:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:19:38,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:38,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:19:38,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:19:38,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:19:38,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:19:38,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:19:38,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:19:38,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:19:38,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:19:38,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:19:38,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 11:19:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:19:38,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:38,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:19:38,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:19:38,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:19:38,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 11:19:38,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:19:38,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:19:38,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:19:38,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:19:38,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:19:38,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-13 11:19:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:19:38,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:38,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:19:38,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:19:38,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:19:38,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:19:38,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:19:38,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:19:38,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:19:38,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:19:38,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:19:38,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 11:19:38,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639324117] [2020-10-13 11:19:38,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:19:38,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 11:19:38,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806628860] [2020-10-13 11:19:38,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 11:19:38,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:19:38,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 11:19:38,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 11:19:38,799 INFO L87 Difference]: Start difference. First operand 751 states. Second operand 7 states. [2020-10-13 11:19:40,647 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-13 11:19:41,398 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2020-10-13 11:19:49,603 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-13 11:19:56,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:19:56,492 INFO L93 Difference]: Finished difference Result 1447 states and 2425 transitions. [2020-10-13 11:19:56,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 11:19:56,494 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2020-10-13 11:19:56,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:19:56,535 INFO L225 Difference]: With dead ends: 1447 [2020-10-13 11:19:56,535 INFO L226 Difference]: Without dead ends: 836 [2020-10-13 11:19:56,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-13 11:19:56,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-10-13 11:19:56,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 601. [2020-10-13 11:19:56,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-10-13 11:19:56,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 952 transitions. [2020-10-13 11:19:56,777 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 952 transitions. Word has length 87 [2020-10-13 11:19:56,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:19:56,778 INFO L479 AbstractCegarLoop]: Abstraction has 601 states and 952 transitions. [2020-10-13 11:19:56,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 11:19:56,778 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 952 transitions. [2020-10-13 11:19:56,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-13 11:19:56,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:19:56,784 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 11:19:56,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 11:19:56,785 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:19:56,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:19:56,785 INFO L82 PathProgramCache]: Analyzing trace with hash 801065692, now seen corresponding path program 1 times [2020-10-13 11:19:56,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:19:56,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786065489] [2020-10-13 11:19:56,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:19:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:19:56,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:56,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:57,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:19:57,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:00,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:00,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:01,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:01,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-13 11:20:01,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 11:20:01,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 11:20:01,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:01,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:20:01,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-13 11:20:01,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 11:20:01,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:02,637 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-13 11:20:02,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:20:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:02,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:02,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:02,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:20:02,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:02,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 11:20:02,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:02,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:02,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:02,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 11:20:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:02,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:02,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:02,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:20:02,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:02,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:20:02,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:02,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:02,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:02,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:02,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:02,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 11:20:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:02,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:02,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:02,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:20:02,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:02,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:20:02,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:02,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:02,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:02,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:02,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:02,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 11:20:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:02,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:02,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:02,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:20:02,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:02,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:20:02,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:02,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:02,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:02,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:02,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:02,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 11:20:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:02,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:02,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:02,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:20:02,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:02,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:20:02,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:02,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:02,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:02,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:02,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:02,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 11:20:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:02,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:02,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:02,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:02,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:03,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:03,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 11:20:03,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 11:20:03,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 545 [2020-10-13 11:20:03,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:03,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:20:03,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 11:20:03,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 11:20:03,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:03,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:20:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:03,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:03,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:03,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 11:20:03,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:03,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 11:20:03,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:20:03,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 11:20:03,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 11:20:03,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:03,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 11:20:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:03,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:03,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:03,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:03,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 11:20:03,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 11:20:03,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 11:20:03,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:03,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:03,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 11:20:03,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:03,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:03,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 11:20:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:03,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:03,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:03,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:20:03,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:03,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:20:03,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:03,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:03,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:03,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:03,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:03,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 11:20:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:03,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:03,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:03,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:20:03,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:03,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:20:03,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:03,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:03,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:20:03,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:03,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:03,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 11:20:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:03,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:03,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:03,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 11:20:03,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:03,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 11:20:03,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:03,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:03,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 11:20:03,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:03,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:03,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:20:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:03,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:03,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:03,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:20:03,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:03,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:20:03,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:03,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:03,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:03,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-13 11:20:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:03,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:03,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:03,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:20:03,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:03,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:20:03,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:03,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:03,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:20:03,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:03,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:03,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 11:20:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:03,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:03,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:03,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:20:03,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:03,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:20:03,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:03,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:03,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:20:03,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:03,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:03,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 11:20:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:03,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:03,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:03,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:20:03,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:03,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:20:03,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:03,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:03,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:20:03,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:03,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:03,576 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 11:20:03,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786065489] [2020-10-13 11:20:03,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:20:03,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 11:20:03,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576752800] [2020-10-13 11:20:03,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 11:20:03,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:20:03,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 11:20:03,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 11:20:03,581 INFO L87 Difference]: Start difference. First operand 601 states and 952 transitions. Second operand 7 states. [2020-10-13 11:20:05,189 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-13 11:20:05,888 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2020-10-13 11:20:13,139 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-13 11:20:17,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:20:17,972 INFO L93 Difference]: Finished difference Result 1404 states and 2333 transitions. [2020-10-13 11:20:17,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 11:20:17,973 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2020-10-13 11:20:17,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:20:17,983 INFO L225 Difference]: With dead ends: 1404 [2020-10-13 11:20:17,983 INFO L226 Difference]: Without dead ends: 836 [2020-10-13 11:20:17,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-13 11:20:17,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-10-13 11:20:18,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 601. [2020-10-13 11:20:18,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-10-13 11:20:18,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 951 transitions. [2020-10-13 11:20:18,127 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 951 transitions. Word has length 88 [2020-10-13 11:20:18,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:20:18,127 INFO L479 AbstractCegarLoop]: Abstraction has 601 states and 951 transitions. [2020-10-13 11:20:18,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 11:20:18,127 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 951 transitions. [2020-10-13 11:20:18,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-13 11:20:18,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:20:18,130 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 11:20:18,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 11:20:18,130 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:20:18,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:20:18,131 INFO L82 PathProgramCache]: Analyzing trace with hash 786966479, now seen corresponding path program 1 times [2020-10-13 11:20:18,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:20:18,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [372629731] [2020-10-13 11:20:18,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:20:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:18,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:18,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:18,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:19,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:23,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:23,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-13 11:20:23,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 11:20:23,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 11:20:23,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:23,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:20:23,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-13 11:20:23,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 11:20:23,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:23,924 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-13 11:20:23,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:20:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:23,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:23,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:23,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:20:23,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:23,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 11:20:23,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:23,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:23,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:23,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:23,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:23,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 11:20:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:23,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:23,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:23,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:20:23,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:23,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:20:23,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:23,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:23,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:23,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:23,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:23,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 11:20:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:23,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:23,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:23,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:20:23,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:23,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:20:23,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:23,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:23,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:23,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:23,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:23,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 11:20:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:23,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:24,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:24,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:20:24,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:24,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:20:24,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:24,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:24,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:24,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:24,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:24,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 11:20:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:24,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:24,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:24,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:20:24,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:24,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:20:24,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:24,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:24,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:24,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:24,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:24,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 11:20:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:24,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:24,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:24,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:24,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:24,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:24,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 11:20:24,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 11:20:24,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-10-13 11:20:24,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:20:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 11:20:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 11:20:24,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:24,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:20:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:24,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:24,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:24,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:24,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 11:20:24,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 11:20:24,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 11:20:24,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:24,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:24,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:24,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:24,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:24,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 11:20:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:24,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:24,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:24,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 11:20:24,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:24,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 11:20:24,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:24,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:20:24,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 11:20:24,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 11:20:24,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:24,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 11:20:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:24,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:24,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:24,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:20:24,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:24,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 11:20:24,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:24,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 11:20:24,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:24,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 11:20:24,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:24,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 11:20:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:24,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:24,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:24,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:20:24,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:24,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:20:24,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:24,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:24,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:20:24,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:24,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:24,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 11:20:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:24,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:24,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:24,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 11:20:24,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:24,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 11:20:24,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:24,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:24,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 11:20:24,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:24,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:24,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:20:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:24,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:24,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:24,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:20:24,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:24,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:20:24,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:24,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:24,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:24,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:24,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:24,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-13 11:20:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:24,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:24,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:24,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:20:24,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:24,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:20:24,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:24,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:24,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:20:24,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:24,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:24,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 11:20:24,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:24,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:24,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:24,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:20:24,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:24,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 11:20:24,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:24,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:24,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:20:24,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:24,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:24,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 11:20:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:24,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:24,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:24,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:20:24,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:24,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:20:24,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:24,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:24,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:20:24,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:24,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:24,717 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 11:20:24,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [372629731] [2020-10-13 11:20:24,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:20:24,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 11:20:24,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578995745] [2020-10-13 11:20:24,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 11:20:24,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:20:24,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 11:20:24,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 11:20:24,722 INFO L87 Difference]: Start difference. First operand 601 states and 951 transitions. Second operand 7 states. [2020-10-13 11:20:26,758 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-13 11:20:34,802 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-13 11:20:35,581 WARN L193 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2020-10-13 11:20:40,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:20:40,801 INFO L93 Difference]: Finished difference Result 1419 states and 2363 transitions. [2020-10-13 11:20:40,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 11:20:40,803 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-10-13 11:20:40,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:20:40,811 INFO L225 Difference]: With dead ends: 1419 [2020-10-13 11:20:40,811 INFO L226 Difference]: Without dead ends: 855 [2020-10-13 11:20:40,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-13 11:20:40,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2020-10-13 11:20:40,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 615. [2020-10-13 11:20:40,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2020-10-13 11:20:40,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 970 transitions. [2020-10-13 11:20:40,935 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 970 transitions. Word has length 89 [2020-10-13 11:20:40,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:20:40,935 INFO L479 AbstractCegarLoop]: Abstraction has 615 states and 970 transitions. [2020-10-13 11:20:40,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 11:20:40,935 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 970 transitions. [2020-10-13 11:20:40,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-13 11:20:40,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:20:40,938 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 11:20:40,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 11:20:40,938 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:20:40,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:20:40,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1585045639, now seen corresponding path program 1 times [2020-10-13 11:20:40,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:20:40,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715652696] [2020-10-13 11:20:40,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:20:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:41,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:41,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:41,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:42,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:46,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:46,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-13 11:20:46,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 11:20:46,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-13 11:20:46,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:46,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:20:46,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-13 11:20:46,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 11:20:46,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:46,887 WARN L193 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-13 11:20:46,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:20:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:46,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:46,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:46,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:20:46,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:46,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 11:20:46,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:46,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:46,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:46,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:46,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:46,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 11:20:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:46,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:46,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:46,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:20:46,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:46,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:20:46,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:46,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:46,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:46,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:46,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:46,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 11:20:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:46,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:46,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:46,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:20:46,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:46,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:20:46,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:46,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:46,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:46,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:46,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:46,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 11:20:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:46,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:46,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:46,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:20:46,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:46,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:20:46,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:46,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:46,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:46,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 11:20:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:47,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:47,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:47,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:20:47,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:47,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:20:47,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:47,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:47,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:47,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:47,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:47,140 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 11:20:47,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 11:20:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:47,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:47,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:47,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:47,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:47,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:47,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 11:20:47,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 11:20:47,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569 [2020-10-13 11:20:47,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:47,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:20:47,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 11:20:47,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 11:20:47,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:47,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:20:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:47,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:47,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:47,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:47,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 11:20:47,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 11:20:47,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 11:20:47,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:47,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:47,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:47,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:47,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:20:47,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 11:20:47,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:47,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:47,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:47,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 11:20:47,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:47,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 11:20:47,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:47,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:20:47,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 11:20:47,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 11:20:47,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:47,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-13 11:20:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:47,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:47,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:47,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:20:47,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:47,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 11:20:47,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:47,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 11:20:47,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:47,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 11:20:47,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:47,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 11:20:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:47,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:47,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:47,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:20:47,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:47,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:20:47,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:47,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:47,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:20:47,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:47,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:47,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 11:20:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:47,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:47,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:47,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 11:20:47,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:47,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:20:47,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:47,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:47,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 11:20:47,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:47,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:47,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:20:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:47,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:47,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:47,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:20:47,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:47,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:20:47,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:47,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:47,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:20:47,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:47,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:47,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 11:20:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:47,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:47,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:47,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:20:47,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:47,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:20:47,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:47,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:47,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:20:47,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:47,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:47,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 11:20:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:47,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:47,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:47,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:20:47,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:47,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:20:47,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:47,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:47,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:20:47,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:47,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:47,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 11:20:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:20:47,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:20:47,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:20:47,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:20:47,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:20:47,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:20:47,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:20:47,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:20:47,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:20:47,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:20:47,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:20:47,945 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 11:20:47,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715652696] [2020-10-13 11:20:47,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:20:47,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 11:20:47,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676176876] [2020-10-13 11:20:47,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 11:20:47,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:20:47,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 11:20:47,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 11:20:47,948 INFO L87 Difference]: Start difference. First operand 615 states and 970 transitions. Second operand 7 states. [2020-10-13 11:20:50,075 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-13 11:20:57,875 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-13 11:20:58,579 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2020-10-13 11:21:03,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:21:03,999 INFO L93 Difference]: Finished difference Result 1399 states and 2304 transitions. [2020-10-13 11:21:04,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 11:21:04,000 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-13 11:21:04,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:21:04,009 INFO L225 Difference]: With dead ends: 1399 [2020-10-13 11:21:04,010 INFO L226 Difference]: Without dead ends: 855 [2020-10-13 11:21:04,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-13 11:21:04,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2020-10-13 11:21:04,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 615. [2020-10-13 11:21:04,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2020-10-13 11:21:04,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 965 transitions. [2020-10-13 11:21:04,162 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 965 transitions. Word has length 90 [2020-10-13 11:21:04,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:21:04,163 INFO L479 AbstractCegarLoop]: Abstraction has 615 states and 965 transitions. [2020-10-13 11:21:04,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 11:21:04,163 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 965 transitions. [2020-10-13 11:21:04,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-13 11:21:04,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:21:04,165 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 11:21:04,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 11:21:04,165 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:21:04,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:21:04,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1154258068, now seen corresponding path program 1 times [2020-10-13 11:21:04,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:21:04,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [826146252] [2020-10-13 11:21:04,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:21:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:04,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:04,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:04,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:04,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:06,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:06,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:09,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:09,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-13 11:21:09,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 11:21:09,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 11:21:09,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:21:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-13 11:21:09,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 11:21:09,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:09,947 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-13 11:21:09,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:21:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:09,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:10,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:21:10,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:10,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 11:21:10,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:10,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:10,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:10,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:10,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 11:21:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:10,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:10,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:21:10,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:10,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:10,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:10,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:10,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:10,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:10,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:10,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 11:21:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:10,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:10,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:21:10,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:10,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:10,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:10,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:10,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:10,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:10,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:10,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 11:21:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:10,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:10,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:21:10,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:10,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:21:10,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:10,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:10,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:10,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:10,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:10,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 11:21:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:10,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:10,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:21:10,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:10,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:10,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:10,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:10,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:10,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:10,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:10,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 11:21:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:10,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:10,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 11:21:10,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 11:21:10,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-10-13 11:21:10,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:10,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:21:10,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 11:21:10,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 11:21:10,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:10,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:21:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:10,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:10,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 11:21:10,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:10,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 11:21:10,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:10,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:21:10,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 11:21:10,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 11:21:10,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:10,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 11:21:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:10,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:10,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 11:21:10,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 11:21:10,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 11:21:10,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:10,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:10,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 11:21:10,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:10,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:10,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 11:21:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:10,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:10,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:21:10,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:10,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 11:21:10,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:10,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:10,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:10,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:10,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:10,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-13 11:21:10,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:10,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:10,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:21:10,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:10,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:10,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:10,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:10,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:21:10,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:10,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:10,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-13 11:21:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:10,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:10,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 11:21:10,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:10,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:21:10,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:10,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:10,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 11:21:10,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:10,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:10,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:21:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:10,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:10,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:21:10,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:10,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:10,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:10,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:10,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:10,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:10,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:10,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 11:21:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:10,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:10,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:21:10,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:10,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:10,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:10,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:10,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:21:10,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:10,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:10,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 11:21:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:10,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:10,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:21:10,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:10,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:21:10,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:10,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:10,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:21:10,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:10,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:10,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-13 11:21:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:10,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:10,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:10,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:21:10,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:10,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:10,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:10,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:10,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:21:10,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:10,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:10,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 11:21:10,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [826146252] [2020-10-13 11:21:10,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:21:10,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 11:21:10,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025136662] [2020-10-13 11:21:10,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 11:21:10,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:21:10,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 11:21:10,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 11:21:10,585 INFO L87 Difference]: Start difference. First operand 615 states and 965 transitions. Second operand 7 states. [2020-10-13 11:21:11,933 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-13 11:21:12,639 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2020-10-13 11:21:25,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:21:25,645 INFO L93 Difference]: Finished difference Result 1439 states and 2371 transitions. [2020-10-13 11:21:25,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 11:21:25,647 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-13 11:21:25,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:21:25,653 INFO L225 Difference]: With dead ends: 1439 [2020-10-13 11:21:25,654 INFO L226 Difference]: Without dead ends: 855 [2020-10-13 11:21:25,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-13 11:21:25,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2020-10-13 11:21:25,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 615. [2020-10-13 11:21:25,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2020-10-13 11:21:25,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 963 transitions. [2020-10-13 11:21:25,777 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 963 transitions. Word has length 91 [2020-10-13 11:21:25,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:21:25,778 INFO L479 AbstractCegarLoop]: Abstraction has 615 states and 963 transitions. [2020-10-13 11:21:25,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 11:21:25,778 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 963 transitions. [2020-10-13 11:21:25,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-13 11:21:25,780 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:21:25,780 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 11:21:25,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 11:21:25,780 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:21:25,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:21:25,781 INFO L82 PathProgramCache]: Analyzing trace with hash -905024195, now seen corresponding path program 1 times [2020-10-13 11:21:25,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:21:25,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1688641472] [2020-10-13 11:21:25,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:21:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:25,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:25,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:25,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:25,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:26,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:29,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:30,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:30,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-13 11:21:30,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 11:21:30,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-13 11:21:30,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:30,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:21:30,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-13 11:21:30,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 11:21:30,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:31,591 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-13 11:21:31,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:21:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:31,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:31,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:31,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:21:31,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:31,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 11:21:31,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:31,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:31,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:31,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:31,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:31,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 11:21:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:31,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:31,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:31,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:21:31,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:31,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:31,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:31,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:31,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 11:21:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:31,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:31,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:31,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:21:31,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:31,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:31,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:31,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:31,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:31,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:31,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:31,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 11:21:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:31,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:31,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:31,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:21:31,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:31,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:31,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:31,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:31,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:31,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:31,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 11:21:31,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:31,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:31,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:31,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:21:31,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:31,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:31,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:31,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:31,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:31,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:31,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:31,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 11:21:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:31,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:31,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:31,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:31,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:32,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:32,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-13 11:21:32,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 11:21:32,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 395 [2020-10-13 11:21:32,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:32,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:21:32,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 11:21:32,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 11:21:32,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:32,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:21:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:32,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:32,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:32,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:32,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 11:21:32,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 11:21:32,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 11:21:32,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:32,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:32,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:32,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:32,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:32,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 11:21:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:32,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:32,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:32,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 11:21:32,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:32,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 11:21:32,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:32,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:21:32,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 11:21:32,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 11:21:32,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:32,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 11:21:32,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:32,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:32,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:32,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:21:32,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:32,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:21:32,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:32,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 11:21:32,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:32,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 11:21:32,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:32,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 11:21:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:32,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:32,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:32,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:21:32,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:32,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:32,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:32,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:32,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:21:32,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:32,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:32,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-13 11:21:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:32,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:32,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:32,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 11:21:32,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:32,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:21:32,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:32,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:32,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 11:21:32,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:32,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:32,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:21:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:32,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:32,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:32,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:21:32,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:32,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:32,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:32,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:32,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:32,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:32,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:32,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 11:21:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:32,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:32,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:32,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:21:32,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:32,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:32,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:32,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:32,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:21:32,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:32,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:32,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 11:21:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:32,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:32,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:32,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:21:32,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:32,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:21:32,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:32,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:32,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:21:32,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:32,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:32,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-13 11:21:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:32,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:32,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:32,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:21:32,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:32,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:32,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:32,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:32,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:21:32,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:32,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:32,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 11:21:32,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1688641472] [2020-10-13 11:21:32,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:21:32,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 11:21:32,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351041227] [2020-10-13 11:21:32,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 11:21:32,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:21:32,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 11:21:32,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 11:21:32,276 INFO L87 Difference]: Start difference. First operand 615 states and 963 transitions. Second operand 7 states. [2020-10-13 11:21:33,963 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-13 11:21:42,039 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-13 11:21:42,751 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2020-10-13 11:21:49,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:21:49,530 INFO L93 Difference]: Finished difference Result 1399 states and 2296 transitions. [2020-10-13 11:21:49,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 11:21:49,532 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-10-13 11:21:49,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:21:49,538 INFO L225 Difference]: With dead ends: 1399 [2020-10-13 11:21:49,538 INFO L226 Difference]: Without dead ends: 855 [2020-10-13 11:21:49,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-13 11:21:49,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2020-10-13 11:21:49,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 615. [2020-10-13 11:21:49,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2020-10-13 11:21:49,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 958 transitions. [2020-10-13 11:21:49,672 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 958 transitions. Word has length 92 [2020-10-13 11:21:49,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:21:49,672 INFO L479 AbstractCegarLoop]: Abstraction has 615 states and 958 transitions. [2020-10-13 11:21:49,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 11:21:49,672 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 958 transitions. [2020-10-13 11:21:49,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-13 11:21:49,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:21:49,674 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 11:21:49,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 11:21:49,675 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:21:49,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:21:49,675 INFO L82 PathProgramCache]: Analyzing trace with hash -277645611, now seen corresponding path program 1 times [2020-10-13 11:21:49,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:21:49,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [598972917] [2020-10-13 11:21:49,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:21:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:49,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:49,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:49,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:50,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:50,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:50,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:54,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:54,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 11:21:54,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 11:21:54,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 11:21:54,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:21:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-13 11:21:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 11:21:54,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:55,459 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-13 11:21:55,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:21:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:55,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:55,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:21:55,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:55,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 11:21:55,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:55,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:55,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:55,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:55,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:55,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 11:21:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:55,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:55,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:21:55,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:55,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:55,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:55,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:55,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:55,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:55,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:55,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 11:21:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:55,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:55,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:21:55,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:55,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:55,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:55,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:55,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:55,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:55,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:55,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 11:21:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:55,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:55,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:21:55,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:55,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:55,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:55,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:55,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:55,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:55,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:55,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 11:21:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:55,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:55,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:21:55,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:55,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:55,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:55,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:55,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:55,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:55,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:55,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 11:21:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:55,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:55,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 11:21:55,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 11:21:55,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-13 11:21:55,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:55,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:21:55,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 11:21:55,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 11:21:55,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:55,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:21:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:55,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:55,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 11:21:55,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:55,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:21:55,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:55,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:21:55,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 11:21:55,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 11:21:55,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:55,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 11:21:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:55,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:55,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 11:21:55,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 11:21:55,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 11:21:55,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:55,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:55,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 11:21:55,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:55,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:55,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 11:21:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:55,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:55,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:21:55,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:55,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:21:55,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:55,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:55,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:55,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:55,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:55,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 11:21:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:55,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:55,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:21:55,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:55,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:55,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:55,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:55,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:21:55,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:55,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:55,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 11:21:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:55,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:55,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 11:21:55,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:55,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:21:55,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:55,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:55,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 11:21:55,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:55,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:55,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:21:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:55,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:55,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:21:55,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:55,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:55,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:55,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:55,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:21:55,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:55,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:55,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 11:21:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:55,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:55,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:21:55,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:55,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:55,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:55,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:55,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:21:55,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:55,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:55,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-13 11:21:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:55,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:55,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:21:55,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:55,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:55,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:55,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:55,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:21:55,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:55,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:55,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-13 11:21:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:21:55,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:21:55,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:21:55,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:21:55,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:21:55,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:21:55,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:21:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:21:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:21:55,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:21:55,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:21:55,976 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 11:21:55,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [598972917] [2020-10-13 11:21:55,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:21:55,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 11:21:55,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324757550] [2020-10-13 11:21:55,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 11:21:55,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:21:55,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 11:21:55,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 11:21:55,978 INFO L87 Difference]: Start difference. First operand 615 states and 958 transitions. Second operand 7 states. [2020-10-13 11:21:57,326 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-13 11:21:58,058 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2020-10-13 11:22:05,573 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-13 11:22:11,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:22:11,303 INFO L93 Difference]: Finished difference Result 1437 states and 2353 transitions. [2020-10-13 11:22:11,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 11:22:11,304 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2020-10-13 11:22:11,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:22:11,311 INFO L225 Difference]: With dead ends: 1437 [2020-10-13 11:22:11,311 INFO L226 Difference]: Without dead ends: 855 [2020-10-13 11:22:11,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-13 11:22:11,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2020-10-13 11:22:11,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 615. [2020-10-13 11:22:11,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2020-10-13 11:22:11,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 957 transitions. [2020-10-13 11:22:11,426 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 957 transitions. Word has length 93 [2020-10-13 11:22:11,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:22:11,427 INFO L479 AbstractCegarLoop]: Abstraction has 615 states and 957 transitions. [2020-10-13 11:22:11,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 11:22:11,427 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 957 transitions. [2020-10-13 11:22:11,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-13 11:22:11,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:22:11,429 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 11:22:11,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 11:22:11,429 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:22:11,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:22:11,430 INFO L82 PathProgramCache]: Analyzing trace with hash -102770110, now seen corresponding path program 1 times [2020-10-13 11:22:11,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:22:11,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487460735] [2020-10-13 11:22:11,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:22:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:11,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:11,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:11,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:12,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:16,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:16,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-13 11:22:16,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 11:22:16,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 11:22:16,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:16,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:22:16,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-13 11:22:16,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 11:22:16,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:17,238 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-13 11:22:17,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:22:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:17,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:17,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:17,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:22:17,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:17,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 11:22:17,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:17,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:17,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:17,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:17,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:17,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 11:22:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:17,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:17,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:17,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:22:17,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:17,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:17,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:17,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:17,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:17,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:17,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 11:22:17,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 11:22:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:17,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:17,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:17,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:22:17,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:17,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:17,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:17,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:17,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:17,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:17,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:17,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 11:22:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:17,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:17,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:17,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:22:17,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:17,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:17,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:17,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:17,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:17,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:17,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:17,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 11:22:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:17,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:17,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:17,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:22:17,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:17,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:17,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:17,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:17,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:17,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:17,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:17,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 11:22:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:17,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:17,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:17,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:17,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-13 11:22:17,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 11:22:17,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 11:22:17,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:17,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:22:17,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 11:22:17,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 11:22:17,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:17,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:22:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:17,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:17,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:17,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 11:22:17,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:17,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:22:17,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:17,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:22:17,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 11:22:17,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 11:22:17,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:17,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-13 11:22:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:17,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:17,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:17,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:17,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 11:22:17,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 11:22:17,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 11:22:17,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:17,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:17,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 11:22:17,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:17,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:17,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 11:22:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:17,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:17,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:17,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:22:17,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:17,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:22:17,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:17,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:17,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:17,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:17,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:17,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 11:22:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:17,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:17,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:17,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:22:17,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:17,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:17,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:17,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:17,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:22:17,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:17,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:17,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 11:22:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:17,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:17,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:17,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 11:22:17,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:17,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:22:17,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:17,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:17,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 11:22:17,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:17,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:17,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:22:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:17,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:17,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:17,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:22:17,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:17,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:17,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:17,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:17,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:17,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:17,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:17,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 11:22:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:17,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:17,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:17,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:22:17,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:17,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:17,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:17,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:17,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:22:17,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:17,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:17,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 11:22:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:17,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:17,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:17,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:22:17,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:17,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:22:17,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:17,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:17,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:22:17,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:17,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:17,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 11:22:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:17,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:17,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:17,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:22:17,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:17,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:17,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:17,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:17,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:22:17,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:17,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:17,590 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 11:22:17,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [487460735] [2020-10-13 11:22:17,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:22:17,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 11:22:17,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913621640] [2020-10-13 11:22:17,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 11:22:17,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:22:17,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 11:22:17,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 11:22:17,592 INFO L87 Difference]: Start difference. First operand 615 states and 957 transitions. Second operand 7 states. [2020-10-13 11:22:18,909 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-13 11:22:19,645 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2020-10-13 11:22:31,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:22:31,934 INFO L93 Difference]: Finished difference Result 1439 states and 2357 transitions. [2020-10-13 11:22:31,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 11:22:31,935 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2020-10-13 11:22:31,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:22:31,940 INFO L225 Difference]: With dead ends: 1439 [2020-10-13 11:22:31,940 INFO L226 Difference]: Without dead ends: 855 [2020-10-13 11:22:31,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-13 11:22:31,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2020-10-13 11:22:32,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 615. [2020-10-13 11:22:32,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2020-10-13 11:22:32,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 955 transitions. [2020-10-13 11:22:32,071 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 955 transitions. Word has length 94 [2020-10-13 11:22:32,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:22:32,071 INFO L479 AbstractCegarLoop]: Abstraction has 615 states and 955 transitions. [2020-10-13 11:22:32,071 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 11:22:32,072 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 955 transitions. [2020-10-13 11:22:32,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-13 11:22:32,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:22:32,073 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 11:22:32,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 11:22:32,074 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:22:32,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:22:32,074 INFO L82 PathProgramCache]: Analyzing trace with hash 188609913, now seen corresponding path program 1 times [2020-10-13 11:22:32,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:22:32,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821851752] [2020-10-13 11:22:32,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:22:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:32,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:32,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:32,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:32,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:36,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:37,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:37,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 11:22:37,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 11:22:37,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 11:22:37,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:37,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:22:37,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-13 11:22:37,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 11:22:37,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:37,869 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-13 11:22:37,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:22:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:37,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:37,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:37,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:22:37,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:37,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 11:22:37,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:37,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:37,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:37,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:37,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:37,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 11:22:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:37,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:37,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:37,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:22:37,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:37,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:37,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:37,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:37,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:37,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:37,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:37,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 11:22:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:37,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:37,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:37,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:22:37,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:37,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:37,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:37,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:37,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 11:22:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:37,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:37,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:37,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:22:37,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:37,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:37,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:37,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:37,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:37,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:37,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:37,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 11:22:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:37,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:37,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:37,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:22:37,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:37,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:37,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:37,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:37,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:37,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:37,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:38,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 11:22:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:38,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:38,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:38,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:38,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:38,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-13 11:22:38,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:22:38,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-13 11:22:38,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:38,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:22:38,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 11:22:38,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 11:22:38,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:38,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:22:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:38,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:38,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:38,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 11:22:38,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:38,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:38,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:38,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:38,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:38,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:38,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:38,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 11:22:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:38,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:38,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:38,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 11:22:38,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:38,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 11:22:38,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:38,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:22:38,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 11:22:38,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 11:22:38,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:38,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 11:22:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:38,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:38,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:38,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:22:38,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:38,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:22:38,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 11:22:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:38,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 11:22:38,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:38,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 11:22:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:38,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:38,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:38,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:22:38,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:38,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:38,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:38,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:38,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:22:38,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:38,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:38,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 11:22:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:38,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:38,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:38,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 11:22:38,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:38,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:22:38,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:38,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:38,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 11:22:38,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:38,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:38,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:22:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:38,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:38,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:38,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:22:38,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:38,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:38,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:38,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:38,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 11:22:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:38,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:38,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:38,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:22:38,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:38,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:38,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:38,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:38,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:22:38,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:38,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:38,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 11:22:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:38,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:38,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:38,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:22:38,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:38,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:38,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:38,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:38,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:22:38,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:38,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:38,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 11:22:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:38,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:38,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:38,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:22:38,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:38,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:38,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:38,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:22:38,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:38,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:38,308 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 11:22:38,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821851752] [2020-10-13 11:22:38,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:22:38,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 11:22:38,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102845953] [2020-10-13 11:22:38,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 11:22:38,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:22:38,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 11:22:38,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 11:22:38,310 INFO L87 Difference]: Start difference. First operand 615 states and 955 transitions. Second operand 7 states. [2020-10-13 11:22:39,713 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-13 11:22:52,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 11:22:52,461 INFO L93 Difference]: Finished difference Result 1399 states and 2287 transitions. [2020-10-13 11:22:52,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 11:22:52,463 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 95 [2020-10-13 11:22:52,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 11:22:52,468 INFO L225 Difference]: With dead ends: 1399 [2020-10-13 11:22:52,468 INFO L226 Difference]: Without dead ends: 855 [2020-10-13 11:22:52,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-13 11:22:52,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2020-10-13 11:22:52,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 615. [2020-10-13 11:22:52,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2020-10-13 11:22:52,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 950 transitions. [2020-10-13 11:22:52,568 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 950 transitions. Word has length 95 [2020-10-13 11:22:52,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 11:22:52,569 INFO L479 AbstractCegarLoop]: Abstraction has 615 states and 950 transitions. [2020-10-13 11:22:52,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 11:22:52,569 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 950 transitions. [2020-10-13 11:22:52,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-13 11:22:52,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 11:22:52,571 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 11:22:52,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 11:22:52,571 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 11:22:52,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 11:22:52,572 INFO L82 PathProgramCache]: Analyzing trace with hash 405801690, now seen corresponding path program 1 times [2020-10-13 11:22:52,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 11:22:52,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114166063] [2020-10-13 11:22:52,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 11:22:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:52,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:52,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:53,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:53,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:57,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:57,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-13 11:22:57,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 11:22:57,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-13 11:22:57,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:57,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:22:57,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 11:22:57,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 11:22:57,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:58,353 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-13 11:22:58,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 11:22:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:58,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:58,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:22:58,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:58,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 11:22:58,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:58,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:58,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:58,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:58,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:58,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 11:22:58,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:58,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:58,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:22:58,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:58,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:58,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:58,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:58,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:58,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:58,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:58,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 11:22:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:58,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:58,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:22:58,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:58,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:58,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:58,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:58,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:58,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:58,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:58,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 11:22:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:58,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:58,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:22:58,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:58,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:58,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:58,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:58,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:58,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:58,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:58,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 11:22:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:58,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:58,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 11:22:58,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:58,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:58,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:58,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:58,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:58,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 11:22:58,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:58,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:58,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-13 11:22:58,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:22:58,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-13 11:22:58,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:58,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 11:22:58,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 11:22:58,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 11:22:58,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:58,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:22:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:58,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:58,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 11:22:58,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:58,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 11:22:58,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:58,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 11:22:58,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:58,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 11:22:58,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:58,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 11:22:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:58,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:58,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 11:22:58,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 11:22:58,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 11:22:58,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:58,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:22:58,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 11:22:58,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 11:22:58,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:58,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 11:22:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:58,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:58,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:22:58,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:58,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 11:22:58,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:58,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 11:22:58,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 11:22:58,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 11:22:58,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:58,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 11:22:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:58,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:58,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:22:58,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:58,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:58,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:58,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:58,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:22:58,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:58,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:58,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 11:22:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:58,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:58,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 11:22:58,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:58,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 11:22:58,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:58,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:58,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 11:22:58,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:58,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:58,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 11:22:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:58,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:58,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 11:22:58,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:58,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:58,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:58,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 11:22:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:58,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:58,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 11:22:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:58,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:58,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:22:58,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:58,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:58,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:22:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:58,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:58,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 11:22:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:58,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:58,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:22:58,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:58,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:58,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:58,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:22:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:58,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:58,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 11:22:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 11:22:58,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 11:22:58,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 11:22:58,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 11:22:58,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 11:22:58,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 11:22:58,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 11:22:58,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 11:22:58,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 11:22:58,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 11:22:58,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 11:22:58,963 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 11:22:58,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114166063] [2020-10-13 11:22:58,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 11:22:58,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 11:22:58,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821961933] [2020-10-13 11:22:58,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 11:22:58,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 11:22:58,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 11:22:58,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-13 11:22:58,965 INFO L87 Difference]: Start difference. First operand 615 states and 950 transitions. Second operand 11 states. [2020-10-13 11:23:00,856 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-13 11:23:01,643 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2020-10-13 11:23:02,436 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 389 [2020-10-13 11:23:03,234 WARN L193 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 389 [2020-10-13 11:23:04,112 WARN L193 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 392