/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:57:19,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:57:19,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:57:19,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:57:19,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:57:19,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:57:19,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:57:19,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:57:19,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:57:19,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:57:19,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:57:19,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:57:19,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:57:19,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:57:19,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:57:19,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:57:19,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:57:19,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:57:19,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:57:19,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:57:19,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:57:19,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:57:19,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:57:19,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:57:19,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:57:19,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:57:19,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:57:19,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:57:19,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:57:19,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:57:19,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:57:19,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:57:19,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:57:19,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:57:19,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:57:19,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:57:19,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:57:19,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:57:19,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:57:19,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:57:19,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:57:19,353 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:57:19,395 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:57:19,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:57:19,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:57:19,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:57:19,398 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:57:19,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:57:19,399 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:57:19,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:57:19,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:57:19,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:57:19,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:57:19,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:57:19,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:57:19,401 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:57:19,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:57:19,402 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:57:19,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:57:19,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:57:19,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:57:19,403 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:57:19,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:57:19,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:57:19,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:57:19,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:57:19,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:57:19,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:57:19,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:57:19,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:57:19,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:57:19,405 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:57:19,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:57:19,919 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:57:19,923 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:57:19,925 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:57:19,926 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:57:19,927 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product43.cil.c [2020-09-25 01:57:20,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a8e716e3c/9862716a6e864062b70ce1943ec75ad8/FLAGe5d93c8df [2020-09-25 01:57:20,596 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:57:20,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product43.cil.c [2020-09-25 01:57:20,612 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a8e716e3c/9862716a6e864062b70ce1943ec75ad8/FLAGe5d93c8df [2020-09-25 01:57:20,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a8e716e3c/9862716a6e864062b70ce1943ec75ad8 [2020-09-25 01:57:20,870 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:57:20,878 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:57:20,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:57:20,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:57:20,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:57:20,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:57:20" (1/1) ... [2020-09-25 01:57:20,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:20, skipping insertion in model container [2020-09-25 01:57:20,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:57:20" (1/1) ... [2020-09-25 01:57:20,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:57:20,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:57:21,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:57:21,383 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:57:21,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:57:21,633 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:57:21,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:21 WrapperNode [2020-09-25 01:57:21,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:57:21,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:57:21,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:57:21,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:57:21,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:21" (1/1) ... [2020-09-25 01:57:21,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:21" (1/1) ... [2020-09-25 01:57:21,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:21" (1/1) ... [2020-09-25 01:57:21,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:21" (1/1) ... [2020-09-25 01:57:21,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:21" (1/1) ... [2020-09-25 01:57:21,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:21" (1/1) ... [2020-09-25 01:57:21,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:21" (1/1) ... [2020-09-25 01:57:21,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:57:21,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:57:21,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:57:21,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:57:21,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:21" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:57:21,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:57:21,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:57:21,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:57:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:57:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:57:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:57:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:57:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:57:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:57:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:57:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:57:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:57:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:57:21,862 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:57:21,862 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:57:21,862 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:57:21,862 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:57:21,862 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:57:21,863 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 01:57:21,863 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:57:21,863 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:57:21,863 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:57:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:57:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:57:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:57:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:57:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:57:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:57:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:57:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:57:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:57:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:57:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:57:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:57:21,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:57:21,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:57:21,866 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:57:21,866 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:57:21,866 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:57:21,866 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:57:21,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:57:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:57:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:57:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:57:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:57:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:57:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:57:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:57:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:57:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:57:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:57:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:57:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:57:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:57:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:57:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:57:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:57:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:57:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:57:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:57:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:57:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:57:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:57:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:57:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:57:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:57:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:57:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:57:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:57:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:57:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:57:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:57:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:57:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:57:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:57:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:57:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:57:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:57:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:57:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:57:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:57:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:57:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:57:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:57:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:57:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:57:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:57:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:57:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 01:57:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:57:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:57:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:57:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:57:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:57:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:57:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:57:23,125 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:57:23,126 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:57:23,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:57:23 BoogieIcfgContainer [2020-09-25 01:57:23,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:57:23,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:57:23,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:57:23,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:57:23,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:57:20" (1/3) ... [2020-09-25 01:57:23,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4417ee18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:57:23, skipping insertion in model container [2020-09-25 01:57:23,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:57:21" (2/3) ... [2020-09-25 01:57:23,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4417ee18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:57:23, skipping insertion in model container [2020-09-25 01:57:23,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:57:23" (3/3) ... [2020-09-25 01:57:23,147 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2020-09-25 01:57:23,159 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:57:23,172 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:57:23,193 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:57:23,225 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:57:23,225 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:57:23,225 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:57:23,225 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:57:23,225 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:57:23,226 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:57:23,226 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:57:23,226 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:57:23,254 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-25 01:57:23,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 01:57:23,273 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:23,275 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:57:23,275 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:23,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:23,283 INFO L82 PathProgramCache]: Analyzing trace with hash 298100152, now seen corresponding path program 1 times [2020-09-25 01:57:23,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:23,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546325577] [2020-09-25 01:57:23,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:23,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:23,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:25,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:25,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:28,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:28,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:28,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 01:57:28,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:57:28,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 01:57:28,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:28,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:28,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 01:57:28,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:28,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:57:29,034 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:57:29,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:29,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:29,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:29,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:57:29,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:29,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 01:57:29,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:29,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:29,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:29,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:29,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:57:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:29,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:29,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:29,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:29,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:29,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:57:29,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:29,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:29,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:29,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:29,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:29,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:57:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:29,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:29,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:29,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:29,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:29,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 01:57:29,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:29,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:29,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:29,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:29,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:29,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:57:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:29,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:29,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:29,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:29,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:29,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:57:29,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:29,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:29,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:29,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:29,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:29,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:57:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:29,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:29,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:29,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:29,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:29,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:29,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:29,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:29,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:29,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:29,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:29,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:57:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:29,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:29,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:29,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:29,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:29,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:29,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:29,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:29,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:29,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:29,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:29,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:57:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:29,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:29,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:29,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:57:29,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:29,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:29,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:29,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:29,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:57:29,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:29,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:29,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:29,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:29,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:29,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:29,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:29,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:29,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:29,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:29,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:29,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:29,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:29,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 01:57:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:29,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:29,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:29,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:29,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:29,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:29,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:29,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:29,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:29,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:29,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:29,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:57:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:29,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:29,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:29,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:29,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:29,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:29,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:29,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:29,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:29,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:29,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:29,424 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:57:29,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546325577] [2020-09-25 01:57:29,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:57:29,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:57:29,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828191385] [2020-09-25 01:57:29,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:57:29,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:57:29,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:57:29,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:57:29,469 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 4 states. [2020-09-25 01:57:30,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:57:30,765 INFO L93 Difference]: Finished difference Result 504 states and 587 transitions. [2020-09-25 01:57:30,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 01:57:30,768 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 01:57:30,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:57:30,799 INFO L225 Difference]: With dead ends: 504 [2020-09-25 01:57:30,800 INFO L226 Difference]: Without dead ends: 318 [2020-09-25 01:57:30,807 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:57:30,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-09-25 01:57:30,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 271. [2020-09-25 01:57:30,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-09-25 01:57:30,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 293 transitions. [2020-09-25 01:57:30,969 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 293 transitions. Word has length 160 [2020-09-25 01:57:30,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:57:30,972 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 293 transitions. [2020-09-25 01:57:30,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:57:30,972 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 293 transitions. [2020-09-25 01:57:30,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 01:57:30,983 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:30,984 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:57:30,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:57:30,985 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:30,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:30,985 INFO L82 PathProgramCache]: Analyzing trace with hash 716005465, now seen corresponding path program 1 times [2020-09-25 01:57:30,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:30,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805006724] [2020-09-25 01:57:30,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:31,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:31,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:32,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:33,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:34,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:36,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:36,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 01:57:36,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:57:36,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 01:57:36,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:36,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 01:57:36,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:57:36,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:36,391 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:57:36,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:36,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:36,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:36,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:57:36,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:36,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 01:57:36,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:36,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:36,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:36,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:36,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:36,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:57:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:36,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:36,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:36,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:36,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:36,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:36,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:36,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:36,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:36,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:36,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:36,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:57:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:36,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:36,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:36,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:36,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:36,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:36,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:36,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:36,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:36,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:36,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:36,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:57:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:36,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:36,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:36,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:36,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:36,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:36,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:36,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:36,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:36,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:36,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:36,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:57:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:36,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:36,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:36,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:36,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:36,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:36,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:36,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:36,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:36,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:36,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:36,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:57:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:36,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:36,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:36,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:36,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:36,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:36,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:36,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:36,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:36,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:36,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:36,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:57:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:36,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:36,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:36,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:57:36,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:36,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:36,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:36,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:36,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:57:36,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:36,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:36,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:36,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:36,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:36,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:36,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:36,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:36,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:36,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:36,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:36,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:36,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:36,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 01:57:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:36,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:36,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:36,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:36,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:36,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:36,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:36,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:36,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:36,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:36,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:36,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:57:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:36,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:36,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:36,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:36,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:36,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:36,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:36,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:36,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:36,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:36,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:36,648 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:57:36,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805006724] [2020-09-25 01:57:36,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:57:36,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:57:36,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624219407] [2020-09-25 01:57:36,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:57:36,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:57:36,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:57:36,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:57:36,655 INFO L87 Difference]: Start difference. First operand 271 states and 293 transitions. Second operand 5 states. [2020-09-25 01:57:37,287 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:38,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:57:38,150 INFO L93 Difference]: Finished difference Result 424 states and 473 transitions. [2020-09-25 01:57:38,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:57:38,150 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 01:57:38,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:57:38,159 INFO L225 Difference]: With dead ends: 424 [2020-09-25 01:57:38,159 INFO L226 Difference]: Without dead ends: 307 [2020-09-25 01:57:38,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:57:38,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-25 01:57:38,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 261. [2020-09-25 01:57:38,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-25 01:57:38,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 280 transitions. [2020-09-25 01:57:38,221 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 280 transitions. Word has length 161 [2020-09-25 01:57:38,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:57:38,224 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 280 transitions. [2020-09-25 01:57:38,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:57:38,224 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 280 transitions. [2020-09-25 01:57:38,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 01:57:38,226 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:38,226 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] [2020-09-25 01:57:38,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:57:38,227 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:38,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:38,227 INFO L82 PathProgramCache]: Analyzing trace with hash -793678632, now seen corresponding path program 1 times [2020-09-25 01:57:38,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:38,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1487615599] [2020-09-25 01:57:38,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:38,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:38,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:39,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:40,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:43,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:43,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 01:57:43,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:57:43,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-25 01:57:43,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:43,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:57:43,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 01:57:43,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:57:43,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:43,773 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:57:43,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:43,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:43,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:43,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:43,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:57:43,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:43,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 01:57:43,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:43,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:43,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:43,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:43,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:43,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:57:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:43,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:43,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:43,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:43,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:43,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:43,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:43,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:43,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:43,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:43,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:43,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:57:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:43,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:43,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:43,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:43,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:43,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:43,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:43,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:43,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:43,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:43,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:43,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:57:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:43,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:43,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:43,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:43,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:43,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:43,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:43,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:43,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:43,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:43,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:43,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:57:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:43,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:43,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:43,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:43,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:43,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:43,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:43,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:43,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:43,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:43,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:43,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:57:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:43,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:43,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:43,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:43,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:43,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:43,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:43,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:43,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:43,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:43,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:43,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:57:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:43,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:43,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:43,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:57:43,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:43,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:43,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:43,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:43,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:43,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:43,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:44,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:44,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:44,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:44,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:44,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:44,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:44,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:44,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:44,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:44,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:44,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:44,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:57:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:44,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:44,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:44,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:44,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:44,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:44,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:44,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:57:44,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:44,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:57:44,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:44,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 01:57:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:44,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:44,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:44,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:44,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:44,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:57:44,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:57:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:44,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:57:44,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:44,078 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 01:57:44,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1487615599] [2020-09-25 01:57:44,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:57:44,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:57:44,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146232290] [2020-09-25 01:57:44,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:57:44,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:57:44,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:57:44,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:57:44,083 INFO L87 Difference]: Start difference. First operand 261 states and 280 transitions. Second operand 9 states. [2020-09-25 01:57:44,617 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:57:45,425 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:57:45,743 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:57:46,909 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:57:47,193 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:57:47,513 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:48,100 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:57:48,436 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:57:48,733 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:57:48,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:57:48,958 INFO L93 Difference]: Finished difference Result 534 states and 615 transitions. [2020-09-25 01:57:48,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 01:57:48,959 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-25 01:57:48,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:57:48,963 INFO L225 Difference]: With dead ends: 534 [2020-09-25 01:57:48,963 INFO L226 Difference]: Without dead ends: 388 [2020-09-25 01:57:48,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 01:57:48,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-09-25 01:57:49,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 340. [2020-09-25 01:57:49,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-09-25 01:57:49,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 372 transitions. [2020-09-25 01:57:49,009 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 372 transitions. Word has length 170 [2020-09-25 01:57:49,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:57:49,010 INFO L479 AbstractCegarLoop]: Abstraction has 340 states and 372 transitions. [2020-09-25 01:57:49,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:57:49,010 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 372 transitions. [2020-09-25 01:57:49,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 01:57:49,013 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:49,014 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, 1, 1, 1, 1, 1, 1] [2020-09-25 01:57:49,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:57:49,014 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:49,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:49,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1403513918, now seen corresponding path program 1 times [2020-09-25 01:57:49,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:49,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1402706486] [2020-09-25 01:57:49,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:49,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:49,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:49,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-25 01:57:49,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:49,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 828 [2020-09-25 01:57:49,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:49,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:57:49,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 195 [2020-09-25 01:57:49,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:57:49,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:50,161 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:57:50,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:50,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:50,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:50,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:57:50,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:50,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 01:57:50,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:50,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:50,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:50,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:50,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:50,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:57:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:50,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:50,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:50,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:50,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:50,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:50,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:50,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:50,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:50,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:50,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:50,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:57:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:50,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:50,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:50,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:50,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:50,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:50,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:50,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:50,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:50,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:50,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:50,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:57:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:50,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:50,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:50,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:50,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:50,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:50,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:50,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:50,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:50,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:50,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:50,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:57:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:50,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:50,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:50,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:50,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:50,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:50,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:50,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:50,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:50,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:50,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:50,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:57:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:50,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:50,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:50,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:50,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:50,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:50,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:50,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:50,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:50,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:50,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:50,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:57:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:50,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:50,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:50,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:57:50,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:50,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:50,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:50,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:50,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:50,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:50,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:50,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:50,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:50,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:50,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:50,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:50,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:50,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:50,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:50,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:50,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:50,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:50,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:57:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:50,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:50,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:50,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 01:57:50,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:50,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 01:57:50,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:57:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 01:57:50,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:57:50,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:50,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:57:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:50,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:50,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:50,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:57:50,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:50,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 01:57:50,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:57:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 01:57:50,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:50,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:57:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:50,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:50,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:50,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:57:50,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:50,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:57:50,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:50,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:50,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:50,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:50,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:50,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:57:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:50,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:50,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:50,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 01:57:50,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:50,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 01:57:50,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:50,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:50,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 01:57:50,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:50,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:50,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:57:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:50,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:50,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:50,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 01:57:50,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:50,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:50,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:50,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:50,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:50,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:50,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:50,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:57:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:50,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:50,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:50,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:50,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:50,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:50,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:50,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:50,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 01:57:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:50,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:50,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:50,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:50,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:50,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:50,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:50,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:50,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:50,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:50,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:50,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-09-25 01:57:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:50,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:50,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:50,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:50,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:50,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:50,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:50,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:50,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:50,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:50,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:50,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-25 01:57:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:50,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:50,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:50,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:50,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:50,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:50,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:50,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:50,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:50,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:50,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:50,746 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:57:50,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1402706486] [2020-09-25 01:57:50,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:57:50,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:57:50,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167362732] [2020-09-25 01:57:50,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:57:50,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:57:50,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:57:50,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:57:50,748 INFO L87 Difference]: Start difference. First operand 340 states and 372 transitions. Second operand 10 states. [2020-09-25 01:57:52,246 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:52,551 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:57:52,859 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 01:57:53,186 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:57:53,531 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 01:57:53,823 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:57:54,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:57:54,559 INFO L93 Difference]: Finished difference Result 646 states and 754 transitions. [2020-09-25 01:57:54,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 01:57:54,560 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 225 [2020-09-25 01:57:54,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:57:54,563 INFO L225 Difference]: With dead ends: 646 [2020-09-25 01:57:54,563 INFO L226 Difference]: Without dead ends: 421 [2020-09-25 01:57:54,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 01:57:54,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-09-25 01:57:54,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 354. [2020-09-25 01:57:54,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-09-25 01:57:54,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 387 transitions. [2020-09-25 01:57:54,605 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 387 transitions. Word has length 225 [2020-09-25 01:57:54,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:57:54,606 INFO L479 AbstractCegarLoop]: Abstraction has 354 states and 387 transitions. [2020-09-25 01:57:54,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:57:54,606 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 387 transitions. [2020-09-25 01:57:54,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 01:57:54,609 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:54,609 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, 1, 1, 1, 1, 1, 1] [2020-09-25 01:57:54,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:57:54,610 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:54,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:54,610 INFO L82 PathProgramCache]: Analyzing trace with hash 36285474, now seen corresponding path program 1 times [2020-09-25 01:57:54,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:54,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [180778375] [2020-09-25 01:57:54,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:54,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:55,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:55,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-25 01:57:55,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:55,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 757 [2020-09-25 01:57:55,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:55,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:57:55,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-25 01:57:55,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:57:55,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:55,741 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:57:55,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:55,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:55,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:55,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:57:55,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:55,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 01:57:55,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:55,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:55,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:55,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:55,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:55,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:57:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:55,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:55,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:55,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:55,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:55,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:55,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:55,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:55,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:55,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:55,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:55,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:57:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:55,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:55,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:55,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:55,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:55,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:55,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:55,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:55,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:55,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:55,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:55,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:57:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:55,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:55,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:55,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:55,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:55,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:55,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:55,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:55,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:55,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:57:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:55,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:55,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:55,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:57:55,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:55,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:57:55,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:55,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:55,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:55,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:55,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:55,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:57:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:55,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:55,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:55,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:55,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:55,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:55,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:55,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:55,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:55,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:55,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:55,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:57:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:55,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:55,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:55,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:57:55,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:55,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:55,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:55,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:55,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:55,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:55,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:55,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:57:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:55,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:55,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:55,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:55,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:55,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:55,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:55,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:55,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:55,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:55,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:55,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:57:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:55,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:56,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:56,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 01:57:56,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:56,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 01:57:56,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:56,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:57:56,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:57:56,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:57:56,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:56,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:57:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:56,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:56,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:56,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:57:56,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:56,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 01:57:56,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:56,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:57:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 01:57:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:57:56,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:56,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:57:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:56,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:56,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:56,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:57:56,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:56,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:57:56,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:56,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:57:56,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:57:56,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:56,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:57:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:56,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:56,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:56,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 01:57:56,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:56,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:57:56,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:56,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:56,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 01:57:56,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:56,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:56,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:57:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:56,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:56,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:56,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 01:57:56,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:56,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:56,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:56,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:56,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:56,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:56,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:56,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:57:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:56,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:56,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:56,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:56,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:56,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:56,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:56,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:56,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:56,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:56,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:56,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 01:57:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:56,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:56,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:56,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:57:56,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:56,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:57:56,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:56,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:56,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:57:56,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:56,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:57:56,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-09-25 01:57:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:56,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:56,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:56,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:56,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:56,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:56,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:56,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:56,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:56,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:56,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:56,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-25 01:57:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:56,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:57:56,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:57:56,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:57:56,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:57:56,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:57:56,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:57:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:57:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:57:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:57:56,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:57:56,280 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:57:56,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [180778375] [2020-09-25 01:57:56,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:57:56,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:57:56,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374315325] [2020-09-25 01:57:56,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:57:56,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:57:56,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:57:56,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:57:56,283 INFO L87 Difference]: Start difference. First operand 354 states and 387 transitions. Second operand 9 states. [2020-09-25 01:57:57,662 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:57,968 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:57:58,287 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:58,623 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:57:58,906 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:57:59,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:57:59,741 INFO L93 Difference]: Finished difference Result 669 states and 778 transitions. [2020-09-25 01:57:59,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 01:57:59,741 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 225 [2020-09-25 01:57:59,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:57:59,744 INFO L225 Difference]: With dead ends: 669 [2020-09-25 01:57:59,745 INFO L226 Difference]: Without dead ends: 430 [2020-09-25 01:57:59,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 01:57:59,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-09-25 01:57:59,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 360. [2020-09-25 01:57:59,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-09-25 01:57:59,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 393 transitions. [2020-09-25 01:57:59,787 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 393 transitions. Word has length 225 [2020-09-25 01:57:59,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:57:59,787 INFO L479 AbstractCegarLoop]: Abstraction has 360 states and 393 transitions. [2020-09-25 01:57:59,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:57:59,788 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 393 transitions. [2020-09-25 01:57:59,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 01:57:59,793 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:57:59,793 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, 1, 1, 1, 1, 1, 1] [2020-09-25 01:57:59,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:57:59,794 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:57:59,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:57:59,794 INFO L82 PathProgramCache]: Analyzing trace with hash -584186273, now seen corresponding path program 1 times [2020-09-25 01:57:59,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:57:59,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1632058335] [2020-09-25 01:57:59,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:57:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:57:59,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:01,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:01,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-25 01:58:01,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:01,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1425 [2020-09-25 01:58:01,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:01,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 01:58:01,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 01:58:01,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-25 01:58:01,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:01,536 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:01,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:01,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:01,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:01,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:01,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:01,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-25 01:58:01,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:01,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:01,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:01,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 01:58:01,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:01,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:01,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:01,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:01,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:01,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:01,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:01,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:01,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:01,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:01,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:58:01,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:01,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:01,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:01,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:01,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:01,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:01,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:01,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:01,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:01,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:01,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:58:01,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:01,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:01,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:01,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:01,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:01,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:01,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:58:01,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:01,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:01,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:01,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:58:01,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:01,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:01,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:01,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:01,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:01,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:01,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:01,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:01,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:01,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:01,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:58:01,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:01,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:01,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:01,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:01,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:01,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:01,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:58:01,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:01,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:01,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:01,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 01:58:01,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:01,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:58:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:01,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:01,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:01,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:01,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:01,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:58:01,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:01,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:01,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:01,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 01:58:01,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:01,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:01,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:01,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:01,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:01,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:01,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:01,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:01,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:01,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:01,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:01,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:01,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:01,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:58:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:01,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:01,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:01,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 01:58:01,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:01,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 01:58:01,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:01,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:01,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 01:58:01,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 01:58:01,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:01,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:01,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:01,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:01,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:58:01,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:01,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 01:58:01,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:01,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:01,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:01,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:58:01,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:01,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:58:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:01,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:01,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:01,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:58:01,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:01,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:01,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:01,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:01,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:01,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:58:01,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:02,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:58:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:02,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:02,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:02,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 01:58:02,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:02,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 01:58:02,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:02,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:02,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:02,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 01:58:02,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:02,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:58:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:02,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:02,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:02,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 01:58:02,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:02,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:02,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:02,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:02,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:02,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:02,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:02,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:58:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:02,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:02,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:02,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:02,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:02,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:58:02,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:02,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:02,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:02,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:02,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:02,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 01:58:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:02,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:02,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:02,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:02,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:02,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:02,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:02,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:02,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:02,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:02,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:02,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-09-25 01:58:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:02,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:02,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:02,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:02,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:02,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:02,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:02,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:02,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:02,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:02,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:02,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-25 01:58:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:02,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:02,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:02,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:02,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:02,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:58:02,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:02,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:02,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:02,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:02,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:02,135 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:58:02,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1632058335] [2020-09-25 01:58:02,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:02,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 01:58:02,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589442280] [2020-09-25 01:58:02,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 01:58:02,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:02,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 01:58:02,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:58:02,137 INFO L87 Difference]: Start difference. First operand 360 states and 393 transitions. Second operand 7 states. [2020-09-25 01:58:02,653 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:58:03,343 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:58:05,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:05,464 INFO L93 Difference]: Finished difference Result 950 states and 1118 transitions. [2020-09-25 01:58:05,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 01:58:05,465 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 225 [2020-09-25 01:58:05,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:05,470 INFO L225 Difference]: With dead ends: 950 [2020-09-25 01:58:05,471 INFO L226 Difference]: Without dead ends: 705 [2020-09-25 01:58:05,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-25 01:58:05,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2020-09-25 01:58:05,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 632. [2020-09-25 01:58:05,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2020-09-25 01:58:05,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 708 transitions. [2020-09-25 01:58:05,558 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 708 transitions. Word has length 225 [2020-09-25 01:58:05,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:05,559 INFO L479 AbstractCegarLoop]: Abstraction has 632 states and 708 transitions. [2020-09-25 01:58:05,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 01:58:05,559 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 708 transitions. [2020-09-25 01:58:05,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 01:58:05,562 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:05,562 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:58:05,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 01:58:05,562 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:05,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:05,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1620667469, now seen corresponding path program 1 times [2020-09-25 01:58:05,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:05,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634647139] [2020-09-25 01:58:05,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:05,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:06,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking...