/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=SMALLEST --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_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:08:55,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:08:55,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:08:55,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:08:55,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:08:55,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:08:55,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:08:55,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:08:55,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:08:55,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:08:55,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:08:55,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:08:55,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:08:55,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:08:55,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:08:55,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:08:55,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:08:55,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:08:55,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:08:55,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:08:55,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:08:55,910 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:08:55,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:08:55,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:08:55,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:08:55,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:08:55,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:08:55,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:08:55,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:08:55,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:08:55,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:08:55,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:08:55,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:08:55,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:08:55,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:08:55,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:08:55,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:08:55,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:08:55,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:08:55,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:08:55,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:08:55,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 18:08:55,955 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:08:55,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:08:55,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:08:55,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:08:55,957 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:08:55,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:08:55,958 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:08:55,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:08:55,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:08:55,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:08:55,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:08:55,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:08:55,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:08:55,959 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:08:55,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:08:55,960 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:08:55,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:08:55,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:08:55,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:08:55,960 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:08:55,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:08:55,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:08:55,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:08:55,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:08:55,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:08:55,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:08:55,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:08:55,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:08:55,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:08:55,963 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:08:56,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:08:56,459 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:08:56,463 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:08:56,466 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:08:56,467 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:08:56,469 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2020-09-24 18:08:56,560 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfb81de1b/96798a9b61ed452ba3f49be014ef5340/FLAG73d2ade46 [2020-09-24 18:08:57,165 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:08:57,167 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2020-09-24 18:08:57,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfb81de1b/96798a9b61ed452ba3f49be014ef5340/FLAG73d2ade46 [2020-09-24 18:08:57,457 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dfb81de1b/96798a9b61ed452ba3f49be014ef5340 [2020-09-24 18:08:57,473 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:08:57,481 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:08:57,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:08:57,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:08:57,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:08:57,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:08:57" (1/1) ... [2020-09-24 18:08:57,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:57, skipping insertion in model container [2020-09-24 18:08:57,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:08:57" (1/1) ... [2020-09-24 18:08:57,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:08:57,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:08:58,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:08:58,243 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:08:58,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:08:58,379 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:08:58,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:58 WrapperNode [2020-09-24 18:08:58,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:08:58,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:08:58,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:08:58,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:08:58,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:58" (1/1) ... [2020-09-24 18:08:58,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:58" (1/1) ... [2020-09-24 18:08:58,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:58" (1/1) ... [2020-09-24 18:08:58,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:58" (1/1) ... [2020-09-24 18:08:58,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:58" (1/1) ... [2020-09-24 18:08:58,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:58" (1/1) ... [2020-09-24 18:08:58,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:58" (1/1) ... [2020-09-24 18:08:58,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:08:58,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:08:58,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:08:58,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:08:58,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:08:58,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:08:58,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:08:58,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:08:58,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:08:58,593 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:08:58,594 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:08:58,594 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:08:58,594 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:08:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:08:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:08:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:08:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:08:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:08:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:08:58,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 18:08:58,598 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:08:58,598 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:08:58,598 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:08:58,598 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:08:58,598 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:08:58,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:08:58,599 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:08:58,600 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:08:58,600 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:08:58,600 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 18:08:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:08:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:08:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:08:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:08:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:08:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:08:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:08:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:08:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:08:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:08:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:08:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:08:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:08:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:08:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:08:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:08:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:08:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:08:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:08:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:08:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:08:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:08:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:08:58,604 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:08:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:08:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:08:58,605 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 18:08:58,606 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:08:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:08:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:08:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:08:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:08:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:08:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:08:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:08:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:08:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:08:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:08:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:08:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 18:08:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:08:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:08:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:08:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:08:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:08:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:08:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:08:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:08:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:08:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:08:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:08:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:08:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:08:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:08:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:08:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:08:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:08:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:08:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:08:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:08:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:08:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:08:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:08:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:08:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:08:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:08:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:08:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:08:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:08:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:08:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:08:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:08:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:08:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:08:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:08:59,877 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:08:59,877 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:08:59,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:08:59 BoogieIcfgContainer [2020-09-24 18:08:59,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:08:59,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:08:59,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:08:59,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:08:59,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:08:57" (1/3) ... [2020-09-24 18:08:59,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625aad77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:08:59, skipping insertion in model container [2020-09-24 18:08:59,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:58" (2/3) ... [2020-09-24 18:08:59,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625aad77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:08:59, skipping insertion in model container [2020-09-24 18:08:59,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:08:59" (3/3) ... [2020-09-24 18:08:59,896 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2020-09-24 18:08:59,910 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:08:59,923 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:08:59,949 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:08:59,990 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:08:59,990 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:08:59,990 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:08:59,990 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:08:59,990 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:08:59,991 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:08:59,991 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:08:59,991 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:09:00,025 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states. [2020-09-24 18:09:00,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 18:09:00,045 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:00,047 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] [2020-09-24 18:09:00,048 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:00,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:00,057 INFO L82 PathProgramCache]: Analyzing trace with hash -68792430, now seen corresponding path program 1 times [2020-09-24 18:09:00,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:00,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1003928956] [2020-09-24 18:09:00,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:00,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:00,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:02,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:02,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:05,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:05,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 18:09:05,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:09:05,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 18:09:05,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:05,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:05,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 18:09:05,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:05,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 18:09:06,101 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:06,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:06,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:06,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:06,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:06,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:06,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 18:09:06,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:06,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:06,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:06,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:06,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:06,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:06,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:06,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:06,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:06,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:06,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:06,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:06,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:06,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:06,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:06,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:06,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:06,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:06,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:06,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:06,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:06,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:06,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:09:06,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:06,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:06,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:06,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:06,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:06,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:06,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:06,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:06,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:06,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:06,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:09:06,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:06,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:06,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:06,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:06,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:06,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:06,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:06,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:06,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:06,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:06,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:06,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:06,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:06,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:06,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:06,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:06,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:06,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:06,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:06,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:06,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:06,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:06,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:06,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:06,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:06,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:06,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:09:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:06,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:06,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:06,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:06,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:06,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:09:06,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:06,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:06,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:09:06,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:06,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:06,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:06,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:06,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:06,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:06,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:06,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:06,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:06,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:06,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:06,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:06,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:06,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 18:09:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:06,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:06,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:06,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:06,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:06,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:06,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:06,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:06,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:06,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:06,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 18:09:06,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 18:09:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:06,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:06,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:06,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:06,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:06,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 18:09:06,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:06,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:06,528 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:09:06,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1003928956] [2020-09-24 18:09:06,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:06,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:09:06,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354545512] [2020-09-24 18:09:06,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:09:06,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:06,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:09:06,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:09:06,570 INFO L87 Difference]: Start difference. First operand 329 states. Second operand 4 states. [2020-09-24 18:09:07,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:07,952 INFO L93 Difference]: Finished difference Result 517 states and 605 transitions. [2020-09-24 18:09:07,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:09:07,955 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 18:09:07,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:07,976 INFO L225 Difference]: With dead ends: 517 [2020-09-24 18:09:07,976 INFO L226 Difference]: Without dead ends: 324 [2020-09-24 18:09:07,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:09:08,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-09-24 18:09:08,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 278. [2020-09-24 18:09:08,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-09-24 18:09:08,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 302 transitions. [2020-09-24 18:09:08,102 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 302 transitions. Word has length 160 [2020-09-24 18:09:08,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:08,103 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 302 transitions. [2020-09-24 18:09:08,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:09:08,103 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 302 transitions. [2020-09-24 18:09:08,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 18:09:08,109 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:08,109 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] [2020-09-24 18:09:08,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:09:08,110 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:08,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:08,110 INFO L82 PathProgramCache]: Analyzing trace with hash -891035704, now seen corresponding path program 1 times [2020-09-24 18:09:08,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:08,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747916989] [2020-09-24 18:09:08,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:08,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:08,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:09,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:10,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:11,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:13,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:13,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 18:09:13,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:09:13,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-24 18:09:13,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:13,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:13,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 18:09:13,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:09:13,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:13,565 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:13,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:13,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:13,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:13,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:13,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:13,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 18:09:13,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:13,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:13,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:13,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:13,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:13,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:13,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:13,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:13,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:13,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:13,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:13,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:13,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:13,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:13,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:13,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:13,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:13,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:13,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:13,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:13,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:13,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:13,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:13,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:13,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:13,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:13,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:13,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:13,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:13,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:13,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:13,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:13,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:13,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:13,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:13,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:13,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:13,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:13,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:13,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:13,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:13,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:13,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:13,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:13,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:13,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:13,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:13,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:13,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:13,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:13,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:13,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:13,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:13,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:13,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:09:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:13,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:13,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:13,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:13,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:13,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:13,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:13,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:13,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:09:13,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:13,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:13,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:13,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:13,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:13,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:13,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:13,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:13,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:13,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:13,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:13,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:13,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:13,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 18:09:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:13,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:13,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:13,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:13,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:13,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:13,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:13,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:13,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:13,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:13,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:13,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:09:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:13,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:13,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:13,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:13,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:13,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:13,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:13,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:13,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:13,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:13,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:13,844 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:09:13,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747916989] [2020-09-24 18:09:13,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:13,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:09:13,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284905264] [2020-09-24 18:09:13,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:09:13,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:13,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:09:13,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:09:13,851 INFO L87 Difference]: Start difference. First operand 278 states and 302 transitions. Second operand 5 states. [2020-09-24 18:09:14,516 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:09:15,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:15,663 INFO L93 Difference]: Finished difference Result 442 states and 497 transitions. [2020-09-24 18:09:15,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:09:15,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 18:09:15,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:15,669 INFO L225 Difference]: With dead ends: 442 [2020-09-24 18:09:15,669 INFO L226 Difference]: Without dead ends: 313 [2020-09-24 18:09:15,671 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 [2020-09-24 18:09:15,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-09-24 18:09:15,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 268. [2020-09-24 18:09:15,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-24 18:09:15,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 289 transitions. [2020-09-24 18:09:15,716 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 289 transitions. Word has length 161 [2020-09-24 18:09:15,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:15,717 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 289 transitions. [2020-09-24 18:09:15,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:09:15,717 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 289 transitions. [2020-09-24 18:09:15,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-24 18:09:15,719 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:15,720 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] [2020-09-24 18:09:15,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:09:15,720 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:15,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:15,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1936155524, now seen corresponding path program 1 times [2020-09-24 18:09:15,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:15,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440349011] [2020-09-24 18:09:15,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:15,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:16,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:16,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:17,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:20,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:20,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 18:09:20,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:09:20,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-09-24 18:09:20,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:20,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:20,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 18:09:20,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 18:09:20,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:21,169 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:21,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:21,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:21,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:21,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:21,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:21,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 18:09:21,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:21,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:21,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:21,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:21,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:21,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:21,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:21,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:21,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:21,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:21,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:21,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:21,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:21,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:21,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:21,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:21,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:21,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:21,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:21,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:21,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:21,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:21,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:21,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:21,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:21,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:21,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:21,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:21,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:21,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:21,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:21,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:21,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:21,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:21,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:21,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:21,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:21,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:21,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:21,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:21,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:21,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:21,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:21,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:21,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:21,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:21,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:21,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:21,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:21,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:21,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:21,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:21,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:21,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:21,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:21,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:21,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:21,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:21,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:09:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:21,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:21,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:21,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:21,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:21,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:21,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:21,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:21,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:21,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:09:21,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:21,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:09:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:21,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:21,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:21,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:21,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:21,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:09:21,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:21,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:21,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:21,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 18:09:21,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:21,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:21,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:21,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:21,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:21,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:21,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:21,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:21,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:21,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:21,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:21,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:21,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 18:09:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:21,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:21,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:21,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:21,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:21,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:21,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:21,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:21,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:21,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-24 18:09:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:21,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:21,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:21,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:21,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:21,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:21,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:21,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:21,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:21,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:21,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:21,440 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:09:21,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440349011] [2020-09-24 18:09:21,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:21,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:09:21,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718928077] [2020-09-24 18:09:21,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:09:21,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:21,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:09:21,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:09:21,444 INFO L87 Difference]: Start difference. First operand 268 states and 289 transitions. Second operand 6 states. [2020-09-24 18:09:21,998 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:09:23,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:23,125 INFO L93 Difference]: Finished difference Result 489 states and 562 transitions. [2020-09-24 18:09:23,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:09:23,126 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-24 18:09:23,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:23,132 INFO L225 Difference]: With dead ends: 489 [2020-09-24 18:09:23,133 INFO L226 Difference]: Without dead ends: 336 [2020-09-24 18:09:23,134 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:09:23,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2020-09-24 18:09:23,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 268. [2020-09-24 18:09:23,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-24 18:09:23,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 288 transitions. [2020-09-24 18:09:23,189 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 288 transitions. Word has length 174 [2020-09-24 18:09:23,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:23,189 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 288 transitions. [2020-09-24 18:09:23,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:09:23,190 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 288 transitions. [2020-09-24 18:09:23,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-24 18:09:23,193 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:23,193 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] [2020-09-24 18:09:23,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:09:23,193 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:23,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:23,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1172327951, now seen corresponding path program 1 times [2020-09-24 18:09:23,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:23,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39280494] [2020-09-24 18:09:23,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:23,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:23,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:24,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:25,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:26,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:27,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:27,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:28,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:28,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-24 18:09:28,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 18:09:28,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-24 18:09:28,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:28,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:09:28,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-24 18:09:28,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:09:28,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:28,566 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:28,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:28,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:28,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:28,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:28,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:28,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 18:09:28,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:28,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:28,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:28,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:28,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:28,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:28,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:28,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:28,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:28,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:28,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:28,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:28,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:28,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:28,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:28,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:28,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:28,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:28,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:28,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:28,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:28,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:28,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:28,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:28,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:28,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:28,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:28,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:28,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:28,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:28,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:28,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:28,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:28,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:28,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:28,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:28,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:28,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:28,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:28,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:28,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:28,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:28,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:28,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:28,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:28,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:28,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:28,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:28,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:28,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:28,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:28,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:28,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:28,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:28,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:28,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:28,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:28,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:28,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:28,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:28,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:09:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:28,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:28,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:28,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:28,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:28,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:28,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:28,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:28,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:28,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:28,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:28,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:09:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:28,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:28,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:28,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:28,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:28,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:28,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:28,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:28,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:28,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:28,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:09:28,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:28,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:28,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:28,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:28,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:28,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:28,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:28,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:28,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:28,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:09:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:28,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:28,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:28,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 18:09:28,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:28,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 18:09:28,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:28,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:09:28,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 18:09:28,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:09:28,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:28,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:09:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:28,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:28,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:28,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 18:09:28,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:28,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:09:28,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:28,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:09:28,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 18:09:28,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 18:09:28,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:28,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:09:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:28,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:28,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:28,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:28,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:28,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:28,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:28,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:28,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:28,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:09:28,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:28,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 18:09:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:28,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:28,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:28,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:28,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:28,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:28,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:28,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:28,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:28,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:28,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:28,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 18:09:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:28,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:28,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:28,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:28,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:28,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:28,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:28,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:28,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:28,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:28,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:29,095 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:09:29,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39280494] [2020-09-24 18:09:29,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:29,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:09:29,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954579794] [2020-09-24 18:09:29,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:09:29,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:29,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:09:29,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:09:29,106 INFO L87 Difference]: Start difference. First operand 268 states and 288 transitions. Second operand 8 states. [2020-09-24 18:09:29,826 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:09:31,931 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:09:32,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:32,666 INFO L93 Difference]: Finished difference Result 678 states and 807 transitions. [2020-09-24 18:09:32,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 18:09:32,667 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-09-24 18:09:32,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:32,672 INFO L225 Difference]: With dead ends: 678 [2020-09-24 18:09:32,672 INFO L226 Difference]: Without dead ends: 525 [2020-09-24 18:09:32,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2020-09-24 18:09:32,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-09-24 18:09:32,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 387. [2020-09-24 18:09:32,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2020-09-24 18:09:32,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 419 transitions. [2020-09-24 18:09:32,733 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 419 transitions. Word has length 187 [2020-09-24 18:09:32,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:32,734 INFO L479 AbstractCegarLoop]: Abstraction has 387 states and 419 transitions. [2020-09-24 18:09:32,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:09:32,734 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 419 transitions. [2020-09-24 18:09:32,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-24 18:09:32,737 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:32,737 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] [2020-09-24 18:09:32,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:09:32,737 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:32,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:32,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1397715062, now seen corresponding path program 1 times [2020-09-24 18:09:32,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:32,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [513222808] [2020-09-24 18:09:32,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:32,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:32,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:32,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:33,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:37,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:37,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:37,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-24 18:09:37,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:09:37,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 18:09:37,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:37,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:09:37,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-09-24 18:09:37,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 18:09:37,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,174 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:38,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:38,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 18:09:38,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:38,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:38,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:38,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:38,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:38,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:38,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:38,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:38,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:38,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:38,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:38,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:38,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:38,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:38,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:38,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:38,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:38,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:38,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:38,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:38,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:38,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:38,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:38,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:09:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:38,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:38,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:38,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:38,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:09:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:38,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:38,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:38,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:38,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:38,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:38,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:38,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:38,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:09:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 18:09:38,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:09:38,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 18:09:38,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:38,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:09:38,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:09:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 18:09:38,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 18:09:38,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:38,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:09:38,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:09:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:09:38,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 18:09:38,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:38,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 18:09:38,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:09:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:09:38,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:38,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:38,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:38,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:09:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:38,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:38,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:38,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:09:38,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:38,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 18:09:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:38,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:38,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:09:38,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:09:38,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:38,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 18:09:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:38,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:38,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:38,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:38,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:38,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:09:38,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:38,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:09:38,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:38,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:09:38,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:38,741 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 18:09:38,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [513222808] [2020-09-24 18:09:38,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:38,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 18:09:38,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150511317] [2020-09-24 18:09:38,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 18:09:38,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:38,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 18:09:38,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:09:38,744 INFO L87 Difference]: Start difference. First operand 387 states and 419 transitions. Second operand 11 states. [2020-09-24 18:09:39,375 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:09:40,430 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:09:40,749 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:09:41,756 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:09:42,131 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:09:42,542 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:09:43,289 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:09:43,615 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:09:43,923 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:09:44,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:44,857 INFO L93 Difference]: Finished difference Result 796 states and 934 transitions. [2020-09-24 18:09:44,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-24 18:09:44,858 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 211 [2020-09-24 18:09:44,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:44,862 INFO L225 Difference]: With dead ends: 796 [2020-09-24 18:09:44,862 INFO L226 Difference]: Without dead ends: 524 [2020-09-24 18:09:44,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=261, Invalid=669, Unknown=0, NotChecked=0, Total=930 [2020-09-24 18:09:44,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-09-24 18:09:44,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 386. [2020-09-24 18:09:44,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-09-24 18:09:44,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 416 transitions. [2020-09-24 18:09:44,959 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 416 transitions. Word has length 211 [2020-09-24 18:09:44,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:44,960 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 416 transitions. [2020-09-24 18:09:44,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 18:09:44,960 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 416 transitions. [2020-09-24 18:09:44,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 18:09:44,964 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:44,964 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:09:44,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:09:44,964 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:44,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:44,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1577086917, now seen corresponding path program 1 times [2020-09-24 18:09:44,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:44,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [386578184] [2020-09-24 18:09:44,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:45,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:45,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:45,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 18:09:45,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:45,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 798 [2020-09-24 18:09:45,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:45,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:09:45,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 206 [2020-09-24 18:09:45,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:09:45,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0