/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=1000 --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_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:14:58,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:14:58,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:14:58,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:14:58,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:14:58,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:14:58,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:14:58,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:14:58,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:14:58,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:14:58,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:14:58,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:14:58,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:14:58,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:14:58,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:14:58,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:14:58,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:14:58,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:14:58,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:14:58,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:14:58,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:14:58,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:14:58,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:14:58,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:14:58,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:14:58,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:14:58,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:14:58,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:14:58,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:14:58,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:14:58,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:14:58,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:14:58,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:14:58,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:14:58,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:14:58,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:14:58,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:14:58,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:14:58,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:14:58,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:14:58,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:14:58,836 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 19:14:58,898 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:14:58,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:14:58,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:14:58,900 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:14:58,900 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:14:58,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:14:58,900 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:14:58,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:14:58,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:14:58,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:14:58,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:14:58,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:14:58,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:14:58,904 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:14:58,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:14:58,904 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:14:58,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:14:58,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:14:58,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:14:58,905 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:14:58,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:14:58,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:14:58,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:14:58,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:14:58,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:14:58,906 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:14:58,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:14:58,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:14:58,907 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:14:58,907 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=1000;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=1000;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=1000;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=1000;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:14:59,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:14:59,411 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:14:59,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:14:59,418 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:14:59,418 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:14:59,419 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product46.cil.c [2020-09-24 19:14:59,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f5ad931f/9c8b5ed66f0b4e7d9b384596beb54ee0/FLAGcfab9f56e [2020-09-24 19:15:00,078 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:15:00,078 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product46.cil.c [2020-09-24 19:15:00,094 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f5ad931f/9c8b5ed66f0b4e7d9b384596beb54ee0/FLAGcfab9f56e [2020-09-24 19:15:00,377 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f5ad931f/9c8b5ed66f0b4e7d9b384596beb54ee0 [2020-09-24 19:15:00,389 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:15:00,394 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:15:00,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:15:00,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:15:00,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:15:00,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:15:00" (1/1) ... [2020-09-24 19:15:00,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e89ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:00, skipping insertion in model container [2020-09-24 19:15:00,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:15:00" (1/1) ... [2020-09-24 19:15:00,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:15:00,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:15:01,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:15:01,117 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:15:01,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:15:01,232 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:15:01,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:01 WrapperNode [2020-09-24 19:15:01,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:15:01,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:15:01,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:15:01,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:15:01,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:01" (1/1) ... [2020-09-24 19:15:01,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:01" (1/1) ... [2020-09-24 19:15:01,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:01" (1/1) ... [2020-09-24 19:15:01,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:01" (1/1) ... [2020-09-24 19:15:01,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:01" (1/1) ... [2020-09-24 19:15:01,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:01" (1/1) ... [2020-09-24 19:15:01,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:01" (1/1) ... [2020-09-24 19:15:01,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:15:01,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:15:01,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:15:01,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:15:01,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:01" (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 19:15:01,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:15:01,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:15:01,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:15:01,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 19:15:01,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 19:15:01,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 19:15:01,419 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:15:01,420 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:15:01,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:15:01,421 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:15:01,421 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:15:01,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:15:01,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:15:01,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:15:01,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:15:01,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:15:01,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:15:01,423 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:15:01,423 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:15:01,424 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:15:01,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:15:01,424 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:15:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:15:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:15:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:15:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:15:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:15:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:15:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:15:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:15:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:15:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 19:15:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:15:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 19:15:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:15:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:15:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:15:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:15:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:15:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:15:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 19:15:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:15:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:15:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:15:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:15:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:15:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:15:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:15:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 19:15:01,430 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 19:15:01,430 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 19:15:01,430 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:15:01,430 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:15:01,430 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:15:01,431 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:15:01,431 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:15:01,431 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:15:01,431 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:15:01,431 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:15:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:15:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:15:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:15:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:15:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:15:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:15:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:15:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:15:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:15:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:15:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:15:01,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:15:01,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:15:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:15:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:15:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:15:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:15:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:15:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:15:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:15:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:15:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:15:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:15:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:15:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:15:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:15:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:15:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:15:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:15:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 19:15:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:15:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:15:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:15:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 19:15:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:15:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 19:15:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:15:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:15:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:15:02,553 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:15:02,553 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:15:02,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:15:02 BoogieIcfgContainer [2020-09-24 19:15:02,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:15:02,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:15:02,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:15:02,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:15:02,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:15:00" (1/3) ... [2020-09-24 19:15:02,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264ccf70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:15:02, skipping insertion in model container [2020-09-24 19:15:02,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:01" (2/3) ... [2020-09-24 19:15:02,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264ccf70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:15:02, skipping insertion in model container [2020-09-24 19:15:02,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:15:02" (3/3) ... [2020-09-24 19:15:02,580 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product46.cil.c [2020-09-24 19:15:02,593 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:15:02,607 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:15:02,632 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:15:02,674 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:15:02,674 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:15:02,674 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:15:02,675 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:15:02,675 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:15:02,676 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:15:02,676 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:15:02,676 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:15:02,718 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states. [2020-09-24 19:15:02,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 19:15:02,752 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:02,754 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 19:15:02,755 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:02,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:02,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1445921999, now seen corresponding path program 1 times [2020-09-24 19:15:02,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:02,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [867699204] [2020-09-24 19:15:02,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:03,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:03,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 19:15:04,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:15:04,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:15:04,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 19:15:04,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:15:04,558 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:04,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:04,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-24 19:15:04,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:04,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:04,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:04,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:04,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:04,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:04,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:04,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:15:04,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:15:04,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:04,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:04,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:15:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:04,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:15:04,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:15:04,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:04,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:04,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:04,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:04,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:04,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:04,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 19:15:04,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:04,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:04,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:04,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:04,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 19:15:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:04,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:04,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:04,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:04,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:04,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 19:15:04,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:04,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:04,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:04,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:04,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:05,019 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 19:15:05,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [867699204] [2020-09-24 19:15:05,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:05,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:15:05,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590121768] [2020-09-24 19:15:05,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:15:05,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:05,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:15:05,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:15:05,061 INFO L87 Difference]: Start difference. First operand 332 states. Second operand 4 states. [2020-09-24 19:15:06,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:06,424 INFO L93 Difference]: Finished difference Result 525 states and 615 transitions. [2020-09-24 19:15:06,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 19:15:06,428 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 19:15:06,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:06,447 INFO L225 Difference]: With dead ends: 525 [2020-09-24 19:15:06,448 INFO L226 Difference]: Without dead ends: 329 [2020-09-24 19:15:06,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:15:06,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-09-24 19:15:06,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 281. [2020-09-24 19:15:06,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-09-24 19:15:06,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 306 transitions. [2020-09-24 19:15:06,575 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 306 transitions. Word has length 160 [2020-09-24 19:15:06,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:06,576 INFO L479 AbstractCegarLoop]: Abstraction has 281 states and 306 transitions. [2020-09-24 19:15:06,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:15:06,577 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 306 transitions. [2020-09-24 19:15:06,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 19:15:06,583 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:06,583 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 19:15:06,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:15:06,584 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:06,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:06,584 INFO L82 PathProgramCache]: Analyzing trace with hash -345471189, now seen corresponding path program 1 times [2020-09-24 19:15:06,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:06,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41916014] [2020-09-24 19:15:06,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:06,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:06,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:07,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:07,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 19:15:07,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:15:07,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1030 [2020-09-24 19:15:07,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:07,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:07,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 19:15:07,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:15:07,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:08,066 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:08,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:08,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:08,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:08,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:08,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:08,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 19:15:08,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:08,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:08,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:08,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:08,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:08,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:08,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:08,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:08,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:08,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:08,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:08,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:08,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:08,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:08,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:08,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:08,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:08,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:08,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:08,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:08,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:08,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:08,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:08,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:08,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:08,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:08,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:08,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:08,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:08,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:08,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:08,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:08,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:08,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:08,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:08,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:08,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:08,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:08,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:08,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:08,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:08,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:08,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:08,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:08,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:08,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:08,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:08,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:08,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:08,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:08,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:08,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:08,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:08,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:08,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:08,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:08,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:08,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:08,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:08,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:15:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:08,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:08,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:08,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:08,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:08,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:08,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:08,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:08,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:15:08,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:08,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:08,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:08,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:08,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:08,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:08,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:08,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:08,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:08,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:08,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:08,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:08,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:08,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 19:15:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:08,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:08,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:08,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:08,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:08,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:08,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:08,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:08,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:08,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:08,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:08,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:15:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:08,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:08,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:08,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:08,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:08,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:08,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:08,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:08,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:08,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:08,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:08,326 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 19:15:08,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41916014] [2020-09-24 19:15:08,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:08,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:15:08,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67143623] [2020-09-24 19:15:08,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:15:08,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:08,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:15:08,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:15:08,330 INFO L87 Difference]: Start difference. First operand 281 states and 306 transitions. Second operand 5 states. [2020-09-24 19:15:08,965 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:10,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:10,117 INFO L93 Difference]: Finished difference Result 450 states and 507 transitions. [2020-09-24 19:15:10,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:15:10,118 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 19:15:10,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:10,123 INFO L225 Difference]: With dead ends: 450 [2020-09-24 19:15:10,123 INFO L226 Difference]: Without dead ends: 318 [2020-09-24 19:15:10,126 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 19:15:10,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-09-24 19:15:10,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 271. [2020-09-24 19:15:10,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-09-24 19:15:10,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 293 transitions. [2020-09-24 19:15:10,208 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 293 transitions. Word has length 161 [2020-09-24 19:15:10,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:10,209 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 293 transitions. [2020-09-24 19:15:10,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:15:10,209 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 293 transitions. [2020-09-24 19:15:10,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-24 19:15:10,216 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:10,216 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 19:15:10,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:15:10,216 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:10,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:10,217 INFO L82 PathProgramCache]: Analyzing trace with hash 527888294, now seen corresponding path program 1 times [2020-09-24 19:15:10,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:10,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [439770632] [2020-09-24 19:15:10,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:10,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:10,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:10,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:11,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:11,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 19:15:11,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:15:11,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-09-24 19:15:11,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:11,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:11,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 19:15:11,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 19:15:11,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:11,661 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:11,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:11,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:11,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:11,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:11,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:11,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 19:15:11,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:11,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:11,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:11,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:11,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:11,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:11,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:11,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:11,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:11,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:11,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:11,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:11,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:11,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:11,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:11,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:11,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:11,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:11,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:11,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:11,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:11,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:11,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:11,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:11,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:11,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:11,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:11,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:11,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:11,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:11,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:11,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:11,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:11,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:11,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:11,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:11,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:11,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:11,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:11,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:11,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:11,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:11,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:11,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:11,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:11,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:11,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:11,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:11,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:11,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:11,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:11,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:11,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:11,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:11,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:11,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:11,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:11,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:11,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:11,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:11,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:15:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:11,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:11,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:11,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:11,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:11,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:11,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:11,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:11,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:11,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:15:11,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:11,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:15:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:11,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:11,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:11,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:11,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:11,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:11,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:11,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:15:11,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:11,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:11,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:11,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:11,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:11,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:11,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:11,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:11,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:11,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:11,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:11,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:11,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 19:15:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:11,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:11,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:11,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:11,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:11,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:11,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:11,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:11,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:11,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:11,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:11,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-24 19:15:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:11,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:11,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:11,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:11,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:11,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:11,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:11,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:11,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:11,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:11,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:11,976 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 19:15:11,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [439770632] [2020-09-24 19:15:11,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:11,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:15:11,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54787453] [2020-09-24 19:15:11,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:15:11,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:11,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:15:11,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:15:11,979 INFO L87 Difference]: Start difference. First operand 271 states and 293 transitions. Second operand 6 states. [2020-09-24 19:15:12,487 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:13,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:13,662 INFO L93 Difference]: Finished difference Result 497 states and 572 transitions. [2020-09-24 19:15:13,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 19:15:13,662 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-24 19:15:13,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:13,666 INFO L225 Difference]: With dead ends: 497 [2020-09-24 19:15:13,666 INFO L226 Difference]: Without dead ends: 341 [2020-09-24 19:15:13,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:15:13,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-09-24 19:15:13,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 271. [2020-09-24 19:15:13,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-09-24 19:15:13,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 292 transitions. [2020-09-24 19:15:13,710 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 292 transitions. Word has length 174 [2020-09-24 19:15:13,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:13,711 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 292 transitions. [2020-09-24 19:15:13,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:15:13,711 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 292 transitions. [2020-09-24 19:15:13,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-24 19:15:13,714 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:13,714 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 19:15:13,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:15:13,715 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:13,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:13,715 INFO L82 PathProgramCache]: Analyzing trace with hash -59747891, now seen corresponding path program 1 times [2020-09-24 19:15:13,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:13,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458610644] [2020-09-24 19:15:13,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:13,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:13,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:14,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:14,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:14,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-24 19:15:14,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:15:14,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1029 [2020-09-24 19:15:14,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:14,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:15:14,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-24 19:15:14,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:15:14,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:15,214 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:15,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:15,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:15,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:15,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:15,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:15,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-24 19:15:15,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:15,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:15,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:15,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:15,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:15,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:15,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:15,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:15,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:15,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:15,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:15,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:15,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:15,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:15,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:15,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:15,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:15,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:15,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:15,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:15,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:15,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:15,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:15,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:15,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:15,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:15,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:15,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:15,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:15,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:15,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:15,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:15,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:15,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:15,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:15,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:15,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:15,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:15,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:15,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:15,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:15,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:15,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:15,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:15,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:15,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:15,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:15,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:15,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:15,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:15,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:15,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:15,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:15,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:15,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:15,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:15,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:15,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:15,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:15,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:15,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:15:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:15,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:15,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:15,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:15,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:15,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:15,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:15,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:15,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:15,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:15,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:15,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:15:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:15,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:15,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:15,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:15,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:15,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:15,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:15,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:15,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:15,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:15,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:15,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:15,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:15,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:15,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:15,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:15,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:15,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:15,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:15,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:15,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:15,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:15,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:15:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:15,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:15,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:15,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:15:15,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:15,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:15:15,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:15:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 19:15:15,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:15:15,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:15,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:15,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:15,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:15,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:15:15,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:15,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:15:15,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:15,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:15:15,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:15:15,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:15:15,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:15,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:15,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:15,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:15,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:15,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:15,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:15:15,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:15,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:15,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:15,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:15:15,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:15,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 19:15:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:15,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:15,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:15,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:15,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:15,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:15,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:15,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:15,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:15,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:15,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:15,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 19:15:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:15,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:15,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:15,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:15,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:15,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:15,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:15,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:15,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:15,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:15,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:15,838 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 19:15:15,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1458610644] [2020-09-24 19:15:15,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:15,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:15:15,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219776010] [2020-09-24 19:15:15,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:15:15,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:15,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:15:15,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:15:15,844 INFO L87 Difference]: Start difference. First operand 271 states and 292 transitions. Second operand 9 states. [2020-09-24 19:15:16,416 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:18,679 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:15:19,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:19,319 INFO L93 Difference]: Finished difference Result 699 states and 829 transitions. [2020-09-24 19:15:19,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 19:15:19,320 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 187 [2020-09-24 19:15:19,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:19,327 INFO L225 Difference]: With dead ends: 699 [2020-09-24 19:15:19,327 INFO L226 Difference]: Without dead ends: 543 [2020-09-24 19:15:19,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2020-09-24 19:15:19,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2020-09-24 19:15:19,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 405. [2020-09-24 19:15:19,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-09-24 19:15:19,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 437 transitions. [2020-09-24 19:15:19,459 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 437 transitions. Word has length 187 [2020-09-24 19:15:19,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:19,460 INFO L479 AbstractCegarLoop]: Abstraction has 405 states and 437 transitions. [2020-09-24 19:15:19,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:15:19,460 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 437 transitions. [2020-09-24 19:15:19,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-24 19:15:19,463 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:19,463 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 19:15:19,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:15:19,464 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:19,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:19,464 INFO L82 PathProgramCache]: Analyzing trace with hash -476532751, now seen corresponding path program 1 times [2020-09-24 19:15:19,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:19,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278848540] [2020-09-24 19:15:19,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:19,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:19,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:20,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:20,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-24 19:15:20,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:15:20,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:15:20,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:20,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:20,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 198 [2020-09-24 19:15:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:15:20,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:20,790 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:20,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:20,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:20,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:20,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:20,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:20,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 19:15:20,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:20,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:20,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:20,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:20,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:20,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:20,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:20,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:20,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:20,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:20,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:20,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:20,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:20,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:20,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:20,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:20,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:20,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:20,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:20,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:20,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:20,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:20,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:20,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:20,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:20,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:20,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:20,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:20,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:20,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:20,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:20,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:20,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:20,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:20,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:20,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:20,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:20,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:20,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:20,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:20,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:20,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:20,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:20,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:20,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:20,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:20,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:20,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:20,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:20,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:20,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:20,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:20,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:20,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:20,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:20,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:20,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:20,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:20,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:20,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:20,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:15:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:20,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:20,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:20,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:20,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:20,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:20,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:20,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:20,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:20,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:20,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:20,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:15:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:20,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:20,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:20,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:20,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:20,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:20,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:20,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:20,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:20,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:20,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:20,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:20,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:21,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:21,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:21,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:21,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:21,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:21,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:21,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:21,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:21,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:21,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:15:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:21,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:21,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:21,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:21,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 19:15:21,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:15:21,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-24 19:15:21,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:21,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:21,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 19:15:21,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:15:21,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:21,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:21,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:21,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:21,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:21,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:15:21,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:15:21,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-24 19:15:21,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:21,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:21,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:15:21,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:15:21,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:21,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:21,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:21,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:21,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:15:21,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:21,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 19:15:21,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:21,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:21,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:15:21,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:15:21,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:21,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:15:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:21,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:21,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:21,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:15:21,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:21,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:15:21,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:21,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:15:21,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:21,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:15:21,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:21,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:15:21,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:21,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:21,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:21,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:21,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:21,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:21,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:21,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:21,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 19:15:21,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:21,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:21,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 19:15:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:21,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:21,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:21,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:21,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:21,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:21,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:21,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:21,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:21,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:21,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:21,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 19:15:21,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:21,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:21,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:21,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:21,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:21,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:21,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:21,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:21,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:21,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:21,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:21,575 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 19:15:21,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278848540] [2020-09-24 19:15:21,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:21,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:15:21,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179314249] [2020-09-24 19:15:21,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:15:21,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:21,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:15:21,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:15:21,578 INFO L87 Difference]: Start difference. First operand 405 states and 437 transitions. Second operand 10 states. [2020-09-24 19:15:22,938 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:15:23,249 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:15:23,555 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:23,863 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:15:24,187 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:25,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:25,509 INFO L93 Difference]: Finished difference Result 838 states and 987 transitions. [2020-09-24 19:15:25,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 19:15:25,511 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 211 [2020-09-24 19:15:25,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:25,515 INFO L225 Difference]: With dead ends: 838 [2020-09-24 19:15:25,515 INFO L226 Difference]: Without dead ends: 548 [2020-09-24 19:15:25,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 19:15:25,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-09-24 19:15:25,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 411. [2020-09-24 19:15:25,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-09-24 19:15:25,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 443 transitions. [2020-09-24 19:15:25,564 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 443 transitions. Word has length 211 [2020-09-24 19:15:25,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:25,565 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 443 transitions. [2020-09-24 19:15:25,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:15:25,565 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 443 transitions. [2020-09-24 19:15:25,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-24 19:15:25,568 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:25,568 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 19:15:25,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:15:25,568 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:25,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:25,569 INFO L82 PathProgramCache]: Analyzing trace with hash 497337425, now seen corresponding path program 1 times [2020-09-24 19:15:25,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:25,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655559515] [2020-09-24 19:15:25,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:25,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:25,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:26,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:26,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:26,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-24 19:15:26,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:15:26,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-09-24 19:15:26,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:26,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:15:26,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-24 19:15:26,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 19:15:26,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:26,975 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:26,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:26,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:27,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 19:15:27,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:27,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:27,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:27,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:27,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:27,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:27,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:27,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:27,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:27,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:27,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:27,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:27,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:27,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:27,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:27,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:27,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:15:27,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:27,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:27,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:27,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:15:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:27,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:27,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:27,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:27,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:27,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:27,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:15:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 19:15:27,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:15:27,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 19:15:27,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:27,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:15:27,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:27,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:15:27,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:15:27,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:27,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:15:27,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:27,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:15:27,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 19:15:27,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:27,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 19:15:27,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:27,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:15:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:15:27,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:15:27,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:27,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:27,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:27,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:15:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:27,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:27,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:27,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:15:27,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:27,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 19:15:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:27,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:27,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:27,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:15:27,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:27,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 19:15:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:27,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:27,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:27,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:27,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:27,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:15:27,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:27,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:27,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:27,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:15:27,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:27,544 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 19:15:27,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655559515] [2020-09-24 19:15:27,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:27,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:15:27,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973420443] [2020-09-24 19:15:27,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:15:27,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:27,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:15:27,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:15:27,549 INFO L87 Difference]: Start difference. First operand 411 states and 443 transitions. Second operand 11 states. [2020-09-24 19:15:28,044 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:28,990 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:15:29,319 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:15:30,566 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:30,866 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:15:31,219 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:15:31,901 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:15:32,213 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 19:15:32,512 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:15:33,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:33,244 INFO L93 Difference]: Finished difference Result 844 states and 982 transitions. [2020-09-24 19:15:33,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 19:15:33,245 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 211 [2020-09-24 19:15:33,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:33,249 INFO L225 Difference]: With dead ends: 844 [2020-09-24 19:15:33,249 INFO L226 Difference]: Without dead ends: 548 [2020-09-24 19:15:33,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=248, Invalid=622, Unknown=0, NotChecked=0, Total=870 [2020-09-24 19:15:33,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-09-24 19:15:33,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 410. [2020-09-24 19:15:33,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-09-24 19:15:33,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 440 transitions. [2020-09-24 19:15:33,301 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 440 transitions. Word has length 211 [2020-09-24 19:15:33,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:33,302 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 440 transitions. [2020-09-24 19:15:33,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:15:33,302 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 440 transitions. [2020-09-24 19:15:33,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-09-24 19:15:33,306 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:33,306 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:15:33,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:15:33,306 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:33,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:33,307 INFO L82 PathProgramCache]: Analyzing trace with hash -217934529, now seen corresponding path program 1 times [2020-09-24 19:15:33,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:33,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526075565] [2020-09-24 19:15:33,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:33,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-09-24 19:15:34,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 897 [2020-09-24 19:15:34,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:15:34,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 206 [2020-09-24 19:15:34,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:15:34,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:34,571 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:34,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:34,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 19:15:34,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:34,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:34,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:34,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:34,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:34,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:34,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:34,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:34,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:34,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:34,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:34,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:34,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:34,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:34,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:34,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:34,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:34,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:34,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:34,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:34,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:34,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:34,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:34,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:34,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:34,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:34,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:34,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:34,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:34,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:34,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:34,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:34,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:34,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:34,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:15:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:34,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:34,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:34,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:34,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:34,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:34,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:15:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:34,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 19:15:34,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:34,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:34,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:34,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:34,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:34,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:34,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:34,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:34,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:34,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:34,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:34,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:34,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:34,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:34,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:15:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:34,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:35,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:35,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:15:35,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:35,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 19:15:35,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:35,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:15:35,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 19:15:35,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:15:35,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:35,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:35,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:35,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:35,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:15:35,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:35,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-24 19:15:35,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:35,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:15:35,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:15:35,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:15:35,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:35,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:35,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:35,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:35,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:15:35,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:35,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 19:15:35,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:35,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:35,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:35,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:15:35,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:35,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:15:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:35,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:35,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:35,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:15:35,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:35,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:35,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:35,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:35,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:15:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:35,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:35,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:35,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:15:35,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:35,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:15:35,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:35,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:35,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:15:35,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:35,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:35,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:15:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:35,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:35,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:35,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:15:35,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:35,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:35,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:35,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:35,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:35,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:35,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:35,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:15:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:35,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:35,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:35,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:35,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:35,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:35,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:35,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:35,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:35,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:35,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:35,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:15:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:35,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:35,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:35,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:35,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:35,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:35,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:35,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:35,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:35,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:35,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:35,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-24 19:15:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:35,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:35,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:35,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:35,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:35,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:35,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:35,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:35,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:35,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:35,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:35,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-09-24 19:15:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:35,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:35,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:35,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:35,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:35,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:35,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:35,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:35,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:35,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:35,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:35,446 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 19:15:35,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526075565] [2020-09-24 19:15:35,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:35,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:15:35,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338302058] [2020-09-24 19:15:35,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:15:35,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:35,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:15:35,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:15:35,453 INFO L87 Difference]: Start difference. First operand 410 states and 440 transitions. Second operand 11 states. [2020-09-24 19:15:36,876 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:15:37,181 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:15:37,508 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 19:15:37,836 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:15:38,168 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 19:15:38,465 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:15:39,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:39,654 INFO L93 Difference]: Finished difference Result 847 states and 991 transitions. [2020-09-24 19:15:39,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:15:39,655 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 234 [2020-09-24 19:15:39,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:39,661 INFO L225 Difference]: With dead ends: 847 [2020-09-24 19:15:39,661 INFO L226 Difference]: Without dead ends: 552 [2020-09-24 19:15:39,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 19:15:39,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2020-09-24 19:15:39,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 418. [2020-09-24 19:15:39,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-09-24 19:15:39,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 448 transitions. [2020-09-24 19:15:39,750 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 448 transitions. Word has length 234 [2020-09-24 19:15:39,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:39,751 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 448 transitions. [2020-09-24 19:15:39,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:15:39,751 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 448 transitions. [2020-09-24 19:15:39,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-09-24 19:15:39,758 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:39,758 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:15:39,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:15:39,758 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:39,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:39,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1176917148, now seen corresponding path program 1 times [2020-09-24 19:15:39,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:39,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2525047] [2020-09-24 19:15:39,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:39,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:40,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:40,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-09-24 19:15:40,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:40,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:15:40,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:40,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:15:40,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 19:15:40,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 19:15:40,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,188 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:41,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:41,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-24 19:15:41,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:41,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 19:15:41,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:41,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:41,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:41,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:41,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:15:41,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:41,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:41,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:41,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:15:41,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:41,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:15:41,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:41,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:15:41,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:41,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:41,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:41,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:15:41,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:41,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:41,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:41,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:15:41,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:15:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:41,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:41,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:41,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:15:41,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:15:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:41,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:41,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:41,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:15:41,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:41,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:41,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:41,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:15:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:15:41,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 19:15:41,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:41,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 19:15:41,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 19:15:41,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:15:41,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 19:15:41,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:41,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:15:41,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:15:41,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:15:41,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:41,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:15:41,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:15:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:15:41,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:41,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:41,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:15:41,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:15:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:15:41,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 19:15:41,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:41,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 19:15:41,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:15:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:15:41,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:41,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:41,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:41,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:15:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:41,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:41,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:41,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:41,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:15:41,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:15:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:41,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:41,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:41,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:41,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:41,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-24 19:15:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:41,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:41,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:41,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:41,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:41,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-09-24 19:15:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:41,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:41,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:41,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:41,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:41,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:41,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:41,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:41,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:41,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:41,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:41,822 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 19:15:41,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2525047] [2020-09-24 19:15:41,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:41,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 19:15:41,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590766244] [2020-09-24 19:15:41,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:15:41,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:41,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:15:41,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:15:41,825 INFO L87 Difference]: Start difference. First operand 418 states and 448 transitions. Second operand 8 states. [2020-09-24 19:15:42,357 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:43,022 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:45,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:45,525 INFO L93 Difference]: Finished difference Result 1183 states and 1420 transitions. [2020-09-24 19:15:45,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-24 19:15:45,526 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 234 [2020-09-24 19:15:45,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:45,533 INFO L225 Difference]: With dead ends: 1183 [2020-09-24 19:15:45,533 INFO L226 Difference]: Without dead ends: 880 [2020-09-24 19:15:45,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-09-24 19:15:45,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2020-09-24 19:15:45,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 673. [2020-09-24 19:15:45,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2020-09-24 19:15:45,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 740 transitions. [2020-09-24 19:15:45,618 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 740 transitions. Word has length 234 [2020-09-24 19:15:45,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:45,619 INFO L479 AbstractCegarLoop]: Abstraction has 673 states and 740 transitions. [2020-09-24 19:15:45,619 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:15:45,619 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 740 transitions. [2020-09-24 19:15:45,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-24 19:15:45,622 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:45,623 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:15:45,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:15:45,623 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:45,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:45,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1214461665, now seen corresponding path program 1 times [2020-09-24 19:15:45,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:45,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502762547] [2020-09-24 19:15:45,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:46,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:46,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:46,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 294 [2020-09-24 19:15:46,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:15:46,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:15:46,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:46,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:15:46,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-24 19:15:46,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-24 19:15:46,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:47,034 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:47,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:47,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 19:15:47,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:47,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:47,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:47,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:47,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:47,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:47,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:47,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:47,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:47,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:47,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:47,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:47,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:47,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:47,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:47,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:47,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:47,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:47,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:47,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:47,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:47,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:47,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:47,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:47,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:47,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:47,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:47,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:47,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:15:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:15:47,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:15:47,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:15:47,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:15:47,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:47,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:15:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:47,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:15:47,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:47,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:15:47,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:47,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 19:15:47,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:47,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:47,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:47,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:15:47,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:47,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:47,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:47,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:47,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:47,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:47,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 19:15:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:15:47,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 19:15:47,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:15:47,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 19:15:47,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:47,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:15:47,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 19:15:47,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:47,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:15:47,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:47,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:15:47,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 19:15:47,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:47,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:15:47,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:47,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:15:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:15:47,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:47,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:47,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:15:47,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 47 [2020-09-24 19:15:47,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:15:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:15:47,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 19:15:47,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:47,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 19:15:47,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:47,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:15:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:15:47,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:47,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:47,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:47,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:47,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:15:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:47,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:47,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:47,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:47,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:47,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:15:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:47,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:47,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:47,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:47,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:47,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-09-24 19:15:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:47,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:15:47,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:47,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:47,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:15:47,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:47,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-09-24 19:15:47,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:47,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:47,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:47,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:47,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:47,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:47,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:47,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:47,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:47,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:47,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:47,762 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 19:15:47,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502762547] [2020-09-24 19:15:47,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:47,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-24 19:15:47,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15619762] [2020-09-24 19:15:47,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 19:15:47,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:47,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 19:15:47,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:15:47,764 INFO L87 Difference]: Start difference. First operand 673 states and 740 transitions. Second operand 15 states. [2020-09-24 19:15:48,478 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:49,348 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:50,309 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190