/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:59:24,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:59:24,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:59:24,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:59:24,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:59:24,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:59:24,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:59:24,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:59:24,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:59:24,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:59:24,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:59:24,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:59:24,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:59:24,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:59:24,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:59:24,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:59:24,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:59:24,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:59:24,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:59:24,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:59:24,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:59:24,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:59:24,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:59:24,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:59:24,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:59:24,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:59:24,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:59:24,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:59:24,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:59:24,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:59:24,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:59:24,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:59:24,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:59:24,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:59:24,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:59:24,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:59:24,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:59:24,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:59:24,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:59:24,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:59:24,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:59:24,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:59:24,838 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:59:24,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:59:24,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:59:24,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:59:24,840 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:59:24,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:59:24,840 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:59:24,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:59:24,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:59:24,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:59:24,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:59:24,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:59:24,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:59:24,842 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:59:24,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:59:24,842 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:59:24,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:59:24,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:59:24,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:59:24,843 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:59:24,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:59:24,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:59:24,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:59:24,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:59:24,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:59:24,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:59:24,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:59:24,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:59:24,845 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:59:24,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 02:59:25,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:59:25,376 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:59:25,381 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:59:25,382 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:59:25,383 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:59:25,384 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product41.cil.c [2020-09-25 02:59:25,463 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c6f7999b/b1d2279759eb4fe7ad2f16f4f9f5e942/FLAGf09890fd8 [2020-09-25 02:59:26,120 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:59:26,121 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product41.cil.c [2020-09-25 02:59:26,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c6f7999b/b1d2279759eb4fe7ad2f16f4f9f5e942/FLAGf09890fd8 [2020-09-25 02:59:26,394 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8c6f7999b/b1d2279759eb4fe7ad2f16f4f9f5e942 [2020-09-25 02:59:26,410 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:59:26,416 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:59:26,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:59:26,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:59:26,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:59:26,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:59:26" (1/1) ... [2020-09-25 02:59:26,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f49550a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:26, skipping insertion in model container [2020-09-25 02:59:26,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:59:26" (1/1) ... [2020-09-25 02:59:26,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:59:26,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:59:27,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:59:27,102 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:59:27,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:59:27,277 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:59:27,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:27 WrapperNode [2020-09-25 02:59:27,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:59:27,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:59:27,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:59:27,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:59:27,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:27" (1/1) ... [2020-09-25 02:59:27,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:27" (1/1) ... [2020-09-25 02:59:27,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:27" (1/1) ... [2020-09-25 02:59:27,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:27" (1/1) ... [2020-09-25 02:59:27,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:27" (1/1) ... [2020-09-25 02:59:27,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:27" (1/1) ... [2020-09-25 02:59:27,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:27" (1/1) ... [2020-09-25 02:59:27,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:59:27,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:59:27,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:59:27,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:59:27,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:59:27,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:59:27,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:59:27,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:59:27,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:59:27,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:59:27,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:59:27,460 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:59:27,461 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:59:27,462 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:59:27,462 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:59:27,462 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 02:59:27,462 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:59:27,462 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:59:27,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:59:27,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:59:27,464 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:59:27,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:59:27,464 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:59:27,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 02:59:27,465 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:59:27,465 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:59:27,466 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:59:27,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:59:27,466 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:59:27,468 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:59:27,469 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:59:27,469 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:59:27,469 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:59:27,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:59:27,469 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:59:27,469 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:59:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:59:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:59:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:59:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:59:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:59:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:59:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:59:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:59:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:59:27,472 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:59:27,472 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:59:27,473 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:59:27,473 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:59:27,473 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:59:27,473 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:59:27,473 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:59:27,474 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:59:27,474 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:59:27,474 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:59:27,474 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:59:27,474 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:59:27,475 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:59:27,475 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:59:27,475 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 02:59:27,475 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:59:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:59:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:59:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 02:59:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:59:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:59:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:59:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:59:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:59:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:59:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:59:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:59:27,478 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:59:27,478 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:59:27,478 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:59:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:59:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:59:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:59:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:59:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:59:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:59:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:59:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:59:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:59:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:59:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:59:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:59:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:59:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:59:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:59:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:59:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:59:27,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:59:27,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:59:27,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:59:28,646 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:59:28,646 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:59:28,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:59:28 BoogieIcfgContainer [2020-09-25 02:59:28,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:59:28,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:59:28,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:59:28,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:59:28,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:59:26" (1/3) ... [2020-09-25 02:59:28,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37240b2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:59:28, skipping insertion in model container [2020-09-25 02:59:28,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:27" (2/3) ... [2020-09-25 02:59:28,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37240b2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:59:28, skipping insertion in model container [2020-09-25 02:59:28,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:59:28" (3/3) ... [2020-09-25 02:59:28,663 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product41.cil.c [2020-09-25 02:59:28,675 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:59:28,690 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:59:28,715 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:59:28,753 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:59:28,753 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:59:28,753 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:59:28,754 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:59:28,754 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:59:28,754 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:59:28,754 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:59:28,754 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:59:28,787 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-09-25 02:59:28,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 02:59:28,808 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:28,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:59:28,810 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:28,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:28,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1931518035, now seen corresponding path program 1 times [2020-09-25 02:59:28,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:28,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353732228] [2020-09-25 02:59:28,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:29,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:29,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:30,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:33,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:33,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 02:59:33,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:59:33,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4316 [2020-09-25 02:59:33,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:33,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:59:33,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 02:59:33,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-25 02:59:33,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:59:34,268 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:59:34,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:59:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:34,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:34,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:34,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:59:34,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:34,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-25 02:59:34,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:34,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:34,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:34,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 02:59:34,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:34,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:59:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:34,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:34,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:34,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:34,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:34,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:59:34,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:34,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:34,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:34,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:34,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:34,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:59:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:34,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:34,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:34,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:34,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:34,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:59:34,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:34,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:34,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:34,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:34,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:34,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:59:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:34,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:34,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:34,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:34,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:34,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 02:59:34,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:34,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:34,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:34,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:34,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:34,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:59:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:34,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:34,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:34,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:34,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:34,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:59:34,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:34,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:34,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:34,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:34,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 02:59:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:34,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:34,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:34,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:34,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:34,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:59:34,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:34,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:34,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:34,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:34,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:34,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 02:59:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:34,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:34,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:34,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:34,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:34,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 02:59:34,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:34,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:59:34,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:34,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:34,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:34,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 02:59:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:34,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:34,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:34,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:34,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:34,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:34,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:34,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:34,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:34,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:34,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:34,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:59:34,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353732228] [2020-09-25 02:59:34,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:59:34,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:59:34,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385442686] [2020-09-25 02:59:34,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:59:34,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:59:34,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:59:34,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:59:34,971 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 8 states. [2020-09-25 02:59:35,669 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:59:37,217 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:37,591 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:59:37,985 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:38,409 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:59:38,765 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:39,364 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:59:39,713 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:41,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:59:41,082 INFO L93 Difference]: Finished difference Result 633 states and 788 transitions. [2020-09-25 02:59:41,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 02:59:41,083 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 02:59:41,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:59:41,106 INFO L225 Difference]: With dead ends: 633 [2020-09-25 02:59:41,106 INFO L226 Difference]: Without dead ends: 421 [2020-09-25 02:59:41,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 02:59:41,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-09-25 02:59:41,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 374. [2020-09-25 02:59:41,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-09-25 02:59:41,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 416 transitions. [2020-09-25 02:59:41,255 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 416 transitions. Word has length 153 [2020-09-25 02:59:41,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:59:41,256 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 416 transitions. [2020-09-25 02:59:41,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:59:41,256 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 416 transitions. [2020-09-25 02:59:41,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 02:59:41,262 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:41,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:59:41,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:59:41,263 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:41,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:41,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1105953257, now seen corresponding path program 1 times [2020-09-25 02:59:41,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:41,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2029219647] [2020-09-25 02:59:41,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:41,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:41,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:41,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 02:59:41,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:41,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-09-25 02:59:41,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:41,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:41,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 02:59:41,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 02:59:41,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:41,950 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:59:41,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:59:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:42,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:42,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:42,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:59:42,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:42,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-25 02:59:42,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:42,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:42,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:42,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 02:59:42,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:42,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:59:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:42,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:42,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:42,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:42,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:42,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:42,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:42,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:42,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:42,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:42,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:42,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:59:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:42,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:42,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:42,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:42,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:42,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:42,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:42,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:42,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:42,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:42,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:42,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:59:42,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:42,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:42,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:42,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:42,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:42,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:59:42,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:42,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:42,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:42,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:42,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:42,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:59:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:42,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:42,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:42,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:42,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:42,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:42,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:42,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:42,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:42,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:42,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:42,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 02:59:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:42,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:42,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:42,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:59:42,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:42,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:59:42,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:42,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:42,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:42,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:59:42,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:42,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 02:59:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:42,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:42,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:42,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:42,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:42,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:42,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:42,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:42,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:42,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:42,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:42,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 02:59:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:42,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:42,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:42,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:42,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:42,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:42,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:42,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:42,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:42,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:42,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:42,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 02:59:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:42,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:42,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:42,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:42,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:42,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:42,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:42,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:42,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:42,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:42,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:42,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:59:42,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2029219647] [2020-09-25 02:59:42,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:59:42,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:59:42,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509223171] [2020-09-25 02:59:42,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:59:42,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:59:42,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:59:42,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:59:42,458 INFO L87 Difference]: Start difference. First operand 374 states and 416 transitions. Second operand 5 states. [2020-09-25 02:59:42,976 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:59:44,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:59:44,087 INFO L93 Difference]: Finished difference Result 716 states and 852 transitions. [2020-09-25 02:59:44,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 02:59:44,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-09-25 02:59:44,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:59:44,095 INFO L225 Difference]: With dead ends: 716 [2020-09-25 02:59:44,095 INFO L226 Difference]: Without dead ends: 452 [2020-09-25 02:59:44,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:59:44,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2020-09-25 02:59:44,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 374. [2020-09-25 02:59:44,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-09-25 02:59:44,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 414 transitions. [2020-09-25 02:59:44,169 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 414 transitions. Word has length 168 [2020-09-25 02:59:44,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:59:44,170 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 414 transitions. [2020-09-25 02:59:44,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:59:44,170 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 414 transitions. [2020-09-25 02:59:44,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 02:59:44,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:44,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:59:44,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:59:44,175 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:44,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:44,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1661337178, now seen corresponding path program 1 times [2020-09-25 02:59:44,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:44,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471381521] [2020-09-25 02:59:44,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:44,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:44,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:45,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 02:59:49,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:59:49,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 02:59:49,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:59:49,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 02:59:49,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-25 02:59:49,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:49,562 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:59:49,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:59:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:59:49,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:49,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-25 02:59:49,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:49,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:49,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 02:59:49,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:49,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:59:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:49,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:49,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:59:49,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:49,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:49,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:49,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:49,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:59:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:49,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:49,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:59:49,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:49,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:49,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:49,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:49,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:59:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:49,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:49,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:59:49,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:49,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:49,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:49,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:49,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:59:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:49,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:49,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:49,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:49,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:49,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:49,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:49,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 02:59:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:59:49,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:49,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:59:49,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:59:49,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:50,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 02:59:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:50,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:50,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:50,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:59:50,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:50,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:59:50,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:50,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:59:50,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 02:59:50,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 02:59:50,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:50,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:59:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:50,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:50,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:50,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:50,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:50,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:50,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:50,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:50,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:50,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:50,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:50,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 02:59:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:50,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:50,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:50,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:50,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:50,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:50,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:50,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:50,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:50,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:50,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:50,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 02:59:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:50,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:50,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:50,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:50,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:50,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:50,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:50,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:50,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:50,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:50,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:50,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 02:59:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:50,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:50,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:50,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:50,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:50,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:50,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:50,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:50,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:50,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:50,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:50,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:59:50,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471381521] [2020-09-25 02:59:50,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:59:50,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 02:59:50,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182754571] [2020-09-25 02:59:50,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 02:59:50,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:59:50,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 02:59:50,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:59:50,096 INFO L87 Difference]: Start difference. First operand 374 states and 414 transitions. Second operand 7 states. [2020-09-25 02:59:50,678 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:59:52,159 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:59:53,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:59:53,640 INFO L93 Difference]: Finished difference Result 1025 states and 1235 transitions. [2020-09-25 02:59:53,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 02:59:53,641 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2020-09-25 02:59:53,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:59:53,648 INFO L225 Difference]: With dead ends: 1025 [2020-09-25 02:59:53,648 INFO L226 Difference]: Without dead ends: 761 [2020-09-25 02:59:53,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-09-25 02:59:53,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2020-09-25 02:59:53,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 613. [2020-09-25 02:59:53,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-09-25 02:59:53,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 690 transitions. [2020-09-25 02:59:53,733 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 690 transitions. Word has length 176 [2020-09-25 02:59:53,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:59:53,733 INFO L479 AbstractCegarLoop]: Abstraction has 613 states and 690 transitions. [2020-09-25 02:59:53,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 02:59:53,734 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 690 transitions. [2020-09-25 02:59:53,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 02:59:53,737 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:53,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:59:53,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:59:53,737 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:53,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:53,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1302262086, now seen corresponding path program 1 times [2020-09-25 02:59:53,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:53,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1439340910] [2020-09-25 02:59:53,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:53,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:54,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:54,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 02:59:54,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:54,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 787 [2020-09-25 02:59:54,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:54,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:59:54,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-09-25 02:59:54,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:59:54,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:54,862 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:59:54,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:59:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:54,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:54,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:54,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:59:54,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:54,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 02:59:54,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:54,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:54,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:54,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:54,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:55,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:59:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:55,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:55,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:55,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:55,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:55,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:59:55,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:55,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:55,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:55,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:55,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:55,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:59:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:55,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:55,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:55,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:55,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:55,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:59:55,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:55,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:55,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:55,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:55,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:55,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:59:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:55,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:55,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:55,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:55,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:55,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:55,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:55,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:55,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:55,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:55,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:55,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:59:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:55,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:55,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:55,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:55,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:55,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:59:55,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:55,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:55,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:55,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:55,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:55,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 02:59:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:55,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:55,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:55,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:59:55,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:55,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:55,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:55,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:55,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:55,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 02:59:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:55,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:55,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:55,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 02:59:55,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:55,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 02:59:55,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:55,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:59:55,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 02:59:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:59:55,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:55,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:59:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:55,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:55,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:55,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:59:55,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:55,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 02:59:55,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:55,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:59:55,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:59:55,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:59:55,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:55,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:59:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:55,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:55,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:55,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:59:55,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:55,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:59:55,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:55,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:59:55,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:55,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:55,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:55,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:59:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:55,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:55,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:55,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:55,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:55,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:55,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:55,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:55,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 02:59:55,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:55,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:55,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 02:59:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:55,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:55,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:55,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:55,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:55,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:55,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:55,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:55,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:55,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:55,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:55,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 02:59:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:55,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:55,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:55,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:55,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:55,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:55,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:55,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:55,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:55,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:55,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:55,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 02:59:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:55,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:55,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:55,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:55,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:55,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:55,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:55,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:55,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:55,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:55,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:55,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:59:55,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1439340910] [2020-09-25 02:59:55,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:59:55,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 02:59:55,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056761585] [2020-09-25 02:59:55,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:59:55,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:59:55,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:59:55,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:59:55,288 INFO L87 Difference]: Start difference. First operand 613 states and 690 transitions. Second operand 9 states. [2020-09-25 02:59:56,510 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:59:56,805 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:59:57,106 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:59:57,400 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:59:57,717 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:59:59,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:59:59,098 INFO L93 Difference]: Finished difference Result 1261 states and 1500 transitions. [2020-09-25 02:59:59,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 02:59:59,101 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 200 [2020-09-25 02:59:59,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:59:59,110 INFO L225 Difference]: With dead ends: 1261 [2020-09-25 02:59:59,110 INFO L226 Difference]: Without dead ends: 758 [2020-09-25 02:59:59,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 02:59:59,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2020-09-25 02:59:59,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 612. [2020-09-25 02:59:59,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-09-25 02:59:59,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 688 transitions. [2020-09-25 02:59:59,218 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 688 transitions. Word has length 200 [2020-09-25 02:59:59,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:59:59,218 INFO L479 AbstractCegarLoop]: Abstraction has 612 states and 688 transitions. [2020-09-25 02:59:59,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:59:59,219 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 688 transitions. [2020-09-25 02:59:59,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 02:59:59,223 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:59,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:59:59,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:59:59,223 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:59,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:59,224 INFO L82 PathProgramCache]: Analyzing trace with hash -314753818, now seen corresponding path program 1 times [2020-09-25 02:59:59,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:59,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [318976261] [2020-09-25 02:59:59,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:59,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 03:00:00,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 839 [2020-09-25 03:00:00,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:00:00,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-09-25 03:00:00,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:00:00,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,384 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:00:00,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:00:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:00:00,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 03:00:00,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:00,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:00,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:00,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:00:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:00,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:00,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:00,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:00,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:00,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:00,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:00:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:00,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:00,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:00,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:00,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:00,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:00:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:00,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:00:00,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:00,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:00,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:00,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:00:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:00,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:00,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:00,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:00,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:00,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 03:00:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:00:00,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:00:00,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:00,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:00,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:00,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 03:00:00,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 03:00:00,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 03:00:00,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:00:00,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 03:00:00,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:00:00,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:00,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:00:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:00:00,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 03:00:00,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:00:00,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:00,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 03:00:00,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:00:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:00:00,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:00:00,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:00,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:00,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:00:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:00,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:00:00,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 03:00:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:00,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 03:00:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:00,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:00,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:00,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:00,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:00,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 03:00:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:00,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:00,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:00,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:00,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:00,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 03:00:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:00,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:00,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:00,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:00,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:00:00,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [318976261] [2020-09-25 03:00:00,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:00:00,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 03:00:00,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724180233] [2020-09-25 03:00:00,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:00:00,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:00:00,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:00:00,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:00:00,855 INFO L87 Difference]: Start difference. First operand 612 states and 688 transitions. Second operand 10 states. [2020-09-25 03:00:02,205 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:00:02,540 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:00:02,870 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:00:03,200 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:00:03,533 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:00:03,837 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:00:05,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:00:05,407 INFO L93 Difference]: Finished difference Result 1266 states and 1508 transitions. [2020-09-25 03:00:05,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 03:00:05,408 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 200 [2020-09-25 03:00:05,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:00:05,415 INFO L225 Difference]: With dead ends: 1266 [2020-09-25 03:00:05,416 INFO L226 Difference]: Without dead ends: 764 [2020-09-25 03:00:05,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2020-09-25 03:00:05,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2020-09-25 03:00:05,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 617. [2020-09-25 03:00:05,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 617 states. [2020-09-25 03:00:05,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 693 transitions. [2020-09-25 03:00:05,541 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 693 transitions. Word has length 200 [2020-09-25 03:00:05,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:00:05,542 INFO L479 AbstractCegarLoop]: Abstraction has 617 states and 693 transitions. [2020-09-25 03:00:05,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:00:05,543 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 693 transitions. [2020-09-25 03:00:05,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-09-25 03:00:05,547 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:00:05,547 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:00:05,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:00:05,548 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:00:05,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:00:05,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1029575736, now seen corresponding path program 1 times [2020-09-25 03:00:05,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:00:05,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1707765299] [2020-09-25 03:00:05,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:00:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:05,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:05,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:10,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:10,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-09-25 03:00:10,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:00:10,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 03:00:10,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:10,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:00:10,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 03:00:10,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-25 03:00:10,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:10,981 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:00:10,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:00:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:00:11,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-09-25 03:00:11,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:00:11,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:11,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:00:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:11,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:00:11,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:11,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:11,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:11,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:00:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:11,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:00:11,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:11,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:11,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:11,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:00:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:11,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:00:11,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:11,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:00:11,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:11,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:00:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:11,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:00:11,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:11,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:11,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:11,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 03:00:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:00:11,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:00:11,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:11,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:00:11,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:11,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 03:00:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 03:00:11,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-09-25 03:00:11,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:00:11,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 03:00:11,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 03:00:11,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:11,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:00:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:00:11,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:00:11,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:11,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:11,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:11,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:00:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:00:11,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:00:11,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:11,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:11,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:11,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:00:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 03:00:11,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 03:00:11,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:00:11,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:00:11,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:11,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:00:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:00:11,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 03:00:11,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:00:11,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:00:11,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:11,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:00:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:11,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:00:11,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:00:11,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:00:11,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:11,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 03:00:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:11,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:11,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:11,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:11,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:11,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:11,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-25 03:00:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:11,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:11,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:11,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:11,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:11,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:11,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-25 03:00:11,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:11,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:11,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:11,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:11,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:11,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:12,056 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 03:00:12,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1707765299] [2020-09-25 03:00:12,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:00:12,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 03:00:12,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955335217] [2020-09-25 03:00:12,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 03:00:12,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:00:12,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 03:00:12,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:00:12,061 INFO L87 Difference]: Start difference. First operand 617 states and 693 transitions. Second operand 14 states. [2020-09-25 03:00:12,639 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:00:13,778 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190